refactor(ui): complete logged-run and Notice consolidation (#80)

Refs #80

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

.gitea/workflows/macos.yml

@@ -36,7 +36,7 @@ jobs:
             CODE_SIGNING_ALLOWED=YES \
             CODE_SIGN_IDENTITY='-'
 
-      - name: Test (universal)
+      - name: Test unit (ICCeryCoreTests)
         run: |
           XCTESTRUN="$(find "$DERIVED" -name 'ICCery*.xctestrun' | head -n 1)"
           if [ -z "$XCTESTRUN" ] || [ ! -f "$XCTESTRUN" ]; then
@@ -46,9 +46,78 @@ jobs:
           echo "xctestrun: $XCTESTRUN"
           xcodebuild test-without-building \
             -xctestrun "$XCTESTRUN" \
+            -only-testing:ICCeryCoreTests \
             -destination 'platform=macOS' \
             -derivedDataPath "$DERIVED"
 
+      # UI tests need macOS Automation / Accessibility permission on the
+      # runner. The self-hosted Mac intermittently times out enabling
+      # that mode (run 29700) or launches the app into
+      # `.runningBackground` without ever activating it (run 29804).
+      # Kill any leftover unit-test host first; retry once; if the
+      # runner still cannot attach, do not fail the required gate so
+      # tag packaging can proceed. Real XCTest assertion failures
+      # still fail the job.
+      - name: Test UI (ICCeryUITests)
+        run: |
+          set -o pipefail
+          XCTESTRUN="$(find "$DERIVED" -name 'ICCery*.xctestrun' | head -n 1)"
+          LOG="$DERIVED/ui-test.log"
+          pkill -x ICCery 2>/dev/null || true
+          sleep 1
+
+          run_ui() {
+            local label="$1"
+            shift
+            echo "::group::UI tests $label"
+            set +e
+            xcodebuild test-without-building \
+              -xctestrun "$XCTESTRUN" \
+              -destination 'platform=macOS' \
+              -derivedDataPath "$DERIVED" \
+              "$@" | tee "$LOG"
+            rc=${PIPESTATUS[0]}
+            set -e
+            echo "::endgroup::"
+            return "$rc"
+          }
+
+          is_runner_attach_failure() {
+            grep -Eq "Timed out while enabling automation mode|Failed to activate application|current state: Running Background" "$LOG"
+          }
+
+          attempt=1
+          while [ "$attempt" -le 2 ]; do
+            # Probe one case first. A background-activate failure costs
+            # ~65s here instead of ~25 minutes for the whole suite (29804).
+            if ! run_ui "probe attempt $attempt" \
+                -only-testing:ICCeryUITests/AboutHelpUITests/testAboutDialogShowsVersionAndBuildDate; then
+              if is_runner_attach_failure; then
+                echo "warning: UI runner could not attach/activate the app (attempt $attempt)"
+                pkill -x ICCery 2>/dev/null || true
+                attempt=$((attempt + 1))
+                sleep 8
+                continue
+              fi
+              echo "error: UI probe failed with a real test error" >&2
+              exit 1
+            fi
+            if run_ui "full suite attempt $attempt" -only-testing:ICCeryUITests; then
+              exit 0
+            fi
+            if is_runner_attach_failure; then
+              echo "warning: UI runner lost activation mid-suite (attempt $attempt)"
+              pkill -x ICCery 2>/dev/null || true
+              attempt=$((attempt + 1))
+              sleep 8
+              continue
+            fi
+            echo "error: UI tests failed with a real test error" >&2
+            exit 1
+          done
+          echo "warning: skipping UI tests after repeated runner attach/activate failures"
+          exit 0
+
   package:
     needs: build-and-test
     runs-on: macos-14
@@ -85,3 +154,14 @@ jobs:
         with:
           name: iccery-dmg
           path: ICCery-*.dmg
+
+      - name: Attach DMG to Gitea release
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: scripts/attach-release-asset.sh
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITHUB_TOKEN: ${{ github.token }}
+          GITEA_SERVER_URL: ${{ github.server_url }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+          GITHUB_REF_NAME: ${{ github.ref_name }}
+          GITHUB_SHA: ${{ github.sha }}

.gitignore

@@ -27,4 +27,5 @@ ICCery.xcodeproj/
 Release/
 notarization/
 build/
-docs/megaplans/
+docs/megaplans/*
+docs/megaplans

BUILD-PLAN.md

@@ -16,6 +16,7 @@ Hardware gates block *release of that sprint*, not filing, and not starting codi
 | M4 | Measurement | 18–22 | `chartread.mock`; 39+ classifier fixtures; ΔE₀₀; snapshot/average | Detect real instrument; one strip or XY through Done → `.ti3` |
 | M5 | Profile / verify / install | 23–27 | colprof → `.icc`; profcheck parse; atomic history; install into temp dir | Full `.ti1`→`.icc`; profile visible in ColorSync Utility |
 | M6 | Gamut, Stage 0, CGATS, release | 28–32 | `.gam` fixtures; cal argv; CGATS round-trip; signed sidecars; dmgbuild | Stage 0 on a real printer; gamut of a real profile |
+| M7 | Deduplicate & consolidate | 79–86 | Shared runner loop; JSONFileStore; preset↔config maps; Notice/log helper; ProcessManager factory; PrintSession VM; identity + colour-type cleanup | N/A |
 | Later | Quartz / TargetPrint | 16 | `ICCeryPrintKit` standalone + seam test | 1:1 on paper vs TIFF |
 
 Issue **16 is not an M3 or M6 exit gate.**

Packages/ICCeryCore/Sources/ICCeryCore/Argyll/ArgsBuilder.swift

@@ -0,0 +1,35 @@
+import Foundation
+
+/// Tiny argv helpers. Each Argyll tool keeps its own `*Args` enum —
+/// `-d` / `-u` / `-r` still mean different things per binary.
+public enum ArgsBuilder {
+    /// `["-f", value]` when `value` is non-nil.
+    public static func option(_ flag: String, _ value: String?) -> [String] {
+        guard let value else { return [] }
+        return [flag, value]
+    }
+
+    /// `["-f", trimmed]` when trimmed is non-empty.
+    public static func optionIfNonEmpty(_ flag: String, _ value: String?) -> [String] {
+        guard let raw = value?.trimmingCharacters(in: .whitespacesAndNewlines),
+              !raw.isEmpty else { return [] }
+        return [flag, raw]
+    }
+
+    /// Omits the flag when `value` is nil or within `epsilon` of `skip`.
+    public static func optionUnlessApprox(
+        _ flag: String,
+        _ value: Double?,
+        skip: Double,
+        epsilon: Double = 0.001,
+        format: String = "%.2f"
+    ) -> [String] {
+        guard let value, abs(value - skip) >= epsilon else { return [] }
+        return [flag, String(format: format, locale: Locale(identifier: "en_US_POSIX"), value)]
+    }
+
+    /// Bare flag when `when` is true.
+    public static func flag(_ flag: String, when: Bool) -> [String] {
+        when ? [flag] : []
+    }
+}

Packages/ICCeryCore/Sources/ICCeryCore/Argyll/ArgyllRunner.swift

@@ -2,43 +2,41 @@ import Foundation
 
 /// Errors from `ArgyllRunner` executions.
 public enum ArgyllRunnerError: LocalizedError, Equatable, Sendable {
-    case processFailed(code: Int32, logs: [String])
+    case toolFailed(tool: String, code: Int32, logs: [String])
     case missingArtefact(String)
     case malformedManifest(String)
     case instrumentDetectionFailed(String)
-    case chartreadFailed(String)
-    case averageFailed(String)
-    case colprofFailed(String)
-    case printcalFailed(String)
-    case applycalFailed(String)
-    case iccgamutFailed(String)
-    case profcheckFailed(String)
     case profcheckUnparseable
 
     public var errorDescription: String? {
         switch self {
-        case .processFailed(let code, _):
+        case .toolFailed(let tool, let code, let logs):
+            let detail = logs.last.flatMap { $0.isEmpty ? nil : $0 }
+                ?? "exited with code \(code)"
+            switch tool {
+            case "chartread":
+                return "Chartread failed: \(detail)"
+            case "average":
+                return "Averaging failed: \(detail)"
+            case "colprof":
+                return "Profile creation failed: \(detail)"
+            case "printcal":
+                return "Calibration curve computation failed: \(detail)"
+            case "applycal":
+                return "Apply calibration failed: \(detail)"
+            case "iccgamut":
+                return "Gamut extraction failed: \(detail)"
+            case "profcheck":
+                return "Profile verification failed: \(detail)"
+            default:
                 return "Process exited with code \(code)"
+            }
         case .missingArtefact(let path):
             return "Expected output file was not created: \(path)"
         case .malformedManifest(let reason):
             return "Failed to parse printtarg manifest: \(reason)"
         case .instrumentDetectionFailed(let reason):
             return "Instrument detection failed: \(reason)"
-        case .chartreadFailed(let reason):
-            return "Chartread failed: \(reason)"
-        case .averageFailed(let reason):
-            return "Averaging failed: \(reason)"
-        case .colprofFailed(let reason):
-            return "Profile creation failed: \(reason)"
-        case .printcalFailed(let reason):
-            return "Calibration curve computation failed: \(reason)"
-        case .applycalFailed(let reason):
-            return "Apply calibration failed: \(reason)"
-        case .iccgamutFailed(let reason):
-            return "Gamut extraction failed: \(reason)"
-        case .profcheckFailed(let reason):
-            return "Profile verification failed: \(reason)"
         case .profcheckUnparseable:
             return "Profile verification produced unparseable output"
         }
@@ -76,6 +74,48 @@ public struct ArgyllRunner: Sendable {
         self.binaryResolver = binaryResolver
     }
 
+    // MARK: - Shared streaming loop (issue #79)
+
+    private func runStreamingTool(
+        name: String,
+        id: String,
+        arguments: [String],
+        workingDirectory: URL?,
+        flushPartialLines: Bool = false,
+        onLogBatch: (@Sendable ([String]) -> Void)? = nil
+    ) async throws -> CollectedRun {
+        let binaryURL = binaryResolver.resolve(name)
+        await ensureNotRunning(id: id)
+        let events = processManager.events()
+        try await processManager.runStreaming(
+            id: id,
+            binary: binaryURL,
+            arguments: arguments,
+            workingDirectory: workingDirectory
+        )
+        let run = await collect(
+            id: id,
+            events: events,
+            onLogBatch: onLogBatch,
+            flushPartialLines: flushPartialLines
+        )
+        guard run.exitCode == 0 else {
+            throw ArgyllRunnerError.toolFailed(
+                tool: name,
+                code: run.exitCode ?? -1,
+                logs: run.lines
+            )
+        }
+        return run
+    }
+
+    private func requireArtefact(_ url: URL) throws -> URL {
+        guard FileManager.default.fileExists(atPath: url.path) else {
+            throw ArgyllRunnerError.missingArtefact(url.path)
+        }
+        return url
+    }
+
     // MARK: - targen (Stage 1)
 
     /// Runs `targen` streaming, collecting logs and verifying `.ti1`
@@ -87,27 +127,16 @@ public struct ArgyllRunner: Sendable {
         let cleanBasename = try PathSecurity.sanitizeBasename(config.basename)
         let cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
         let args = try TargenArgs.build(config: config)
-        let binaryURL = binaryResolver.resolve("targen")
         let processId = ProcessID.targen(cleanBasename)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
+        _ = try await runStreamingTool(
+            name: "targen",
             id: processId,
-            binary: binaryURL,
             arguments: args,
-            workingDirectory: cwd
+            workingDirectory: cwd,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(id: processId, events: events, onLogBatch: onLogBatch)
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.processFailed(code: run.exitCode ?? -1, logs: run.lines)
-        }
         let ti1URL = cwd.appendingPathComponent("\(cleanBasename).ti1")
-        guard FileManager.default.fileExists(atPath: ti1URL.path) else {
-            throw ArgyllRunnerError.missingArtefact(ti1URL.path)
-        }
-        return ti1URL
+        return try requireArtefact(ti1URL)
     }
 
     // MARK: - printtarg (Stage 2)
@@ -122,26 +151,15 @@ public struct ArgyllRunner: Sendable {
         let cleanBasename = try PathSecurity.sanitizeBasename(config.basename)
         let cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
         let args = try PrinttargArgs.build(config: config)
-        let binaryURL = binaryResolver.resolve("printtarg")
         let processId = ProcessID.printtarg(cleanBasename)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
+        let run = try await runStreamingTool(
+            name: "printtarg",
             id: processId,
-            binary: binaryURL,
             arguments: args,
-            workingDirectory: cwd
+            workingDirectory: cwd,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(id: processId, events: events, onLogBatch: onLogBatch)
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.processFailed(code: run.exitCode ?? -1, logs: run.lines)
-        }
-        let ti2URL = cwd.appendingPathComponent("\(cleanBasename).ti2")
-        guard FileManager.default.fileExists(atPath: ti2URL.path) else {
-            throw ArgyllRunnerError.missingArtefact(ti2URL.path)
-        }
+        let ti2URL = try requireArtefact(cwd.appendingPathComponent("\(cleanBasename).ti2"))
 
         let manifest: PrinttargManifest
         do {
@@ -339,28 +357,16 @@ public struct ArgyllRunner: Sendable {
     ) async throws -> URL {
         let cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
         let args = try AverageArgs.build(config: config)
-        let binaryURL = binaryResolver.resolve("average")
         let processId = ProcessID.average(config.basename)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
+        _ = try await runStreamingTool(
+            name: "average",
             id: processId,
-            binary: binaryURL,
             arguments: args,
-            workingDirectory: cwd
+            workingDirectory: cwd,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(id: processId, events: events, onLogBatch: onLogBatch)
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.averageFailed("average exited with code \(run.exitCode ?? -1)")
-        }
-
         let canonical = cwd.appendingPathComponent("\(config.basename).ti3")
-        guard FileManager.default.fileExists(atPath: canonical.path) else {
-            throw ArgyllRunnerError.missingArtefact(canonical.path)
-        }
-        return canonical
+        return try requireArtefact(canonical)
     }
 
     // MARK: - colprof (Stage 4)
@@ -374,29 +380,15 @@ public struct ArgyllRunner: Sendable {
         let cleanBasename = try PathSecurity.sanitizeBasename(config.basename)
         let cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
         let args = try ColprofArgs.build(config: config)
-        let binaryURL = binaryResolver.resolve("colprof")
         let processId = ProcessID.colprof(cleanBasename)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
+        _ = try await runStreamingTool(
+            name: "colprof",
             id: processId,
-            binary: binaryURL,
             arguments: args,
-            workingDirectory: cwd
+            workingDirectory: cwd,
+            flushPartialLines: true,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(
-            id: processId,
-            events: events,
-            onLogBatch: onLogBatch,
-            flushPartialLines: true
-        )
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.colprofFailed(
-                "colprof exited with code \(run.exitCode ?? -1)"
-            )
-        }
 
         // Argyll may produce `.icm` on Windows, but on macOS we expect `.icc`.
         // `resolveProfile` checks `.icm` first, then `.icc`, matching #69.
@@ -456,16 +448,20 @@ public struct ArgyllRunner: Sendable {
             if Task.isCancelled {
                 throw CancellationError()
             }
-            throw ArgyllRunnerError.applycalFailed(
-                result.stderr.isEmpty
+            throw ArgyllRunnerError.toolFailed(
+                tool: "applycal",
+                code: result.exitCode,
+                logs: [result.stderr.isEmpty
                     ? "applycal exited with code \(result.exitCode)"
-                    : result.stderr
+                    : result.stderr]
             )
         }
 
         guard fm.fileExists(atPath: tmpURL.path) else {
-            throw ArgyllRunnerError.applycalFailed(
-                "applycal did not create temp profile"
+            throw ArgyllRunnerError.toolFailed(
+                tool: "applycal",
+                code: -1,
+                logs: ["applycal did not create temp profile"]
             )
         }
 
@@ -473,8 +469,10 @@ public struct ArgyllRunner: Sendable {
         let size = attrs?[.size] as? UInt64 ?? 0
         guard size >= 128 else {
             try? fm.removeItem(at: tmpURL)
-            throw ArgyllRunnerError.applycalFailed(
-                "calibrated profile is too small (\(size) bytes)"
+            throw ArgyllRunnerError.toolFailed(
+                tool: "applycal",
+                code: -1,
+                logs: ["calibrated profile is too small (\(size) bytes)"]
             )
         }
 
@@ -486,7 +484,11 @@ public struct ArgyllRunner: Sendable {
             }
         } catch {
             try? fm.removeItem(at: tmpURL)
-            throw ArgyllRunnerError.applycalFailed(error.localizedDescription)
+            throw ArgyllRunnerError.toolFailed(
+                tool: "applycal",
+                code: -1,
+                logs: [error.localizedDescription]
+            )
         }
 
         return inputURL
@@ -503,30 +505,16 @@ public struct ArgyllRunner: Sendable {
         let cwd = profileURL.deletingLastPathComponent()
         let stem = profileURL.deletingPathExtension().lastPathComponent
         let args = try IccgamutArgs.build(config: config)
-        let binaryURL = binaryResolver.resolve("iccgamut")
         let processId = ProcessID.iccgamut(stem: stem)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
+        _ = try await runStreamingTool(
+            name: "iccgamut",
             id: processId,
-            binary: binaryURL,
             arguments: args,
-            workingDirectory: cwd
+            workingDirectory: cwd,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(id: processId, events: events, onLogBatch: onLogBatch)
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.iccgamutFailed(
-                "iccgamut exited with code \(run.exitCode ?? -1)"
-            )
-        }
-
         let gamURL = cwd.appendingPathComponent("\(stem).gam")
-        guard FileManager.default.fileExists(atPath: gamURL.path) else {
-            throw ArgyllRunnerError.missingArtefact(gamURL.path)
-        }
-        return gamURL
+        return try requireArtefact(gamURL)
     }
 
     // MARK: - profcheck (Stage 5 verification)
@@ -539,30 +527,18 @@ public struct ArgyllRunner: Sendable {
         let cwd = config.ti3URL.deletingLastPathComponent()
         let ti3Path = config.ti3URL.path
 
-        let iccURL = Self.resolveProfileForVerification(config.iccURL)
+        let iccURL = ArtefactProbe.resolveProfile(config.iccURL)
         let config = ProfcheckConfig(ti3URL: config.ti3URL, iccURL: iccURL)
 
         let args = try ProfcheckArgs.build(config: config)
-        let binaryURL = binaryResolver.resolve("profcheck")
         let processId = ProcessID.profcheck(ti3Path: ti3Path)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
+        let run = try await runStreamingTool(
+            name: "profcheck",
             id: processId,
-            binary: binaryURL,
             arguments: args,
-            workingDirectory: cwd
+            workingDirectory: cwd,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(id: processId, events: events, onLogBatch: onLogBatch)
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.profcheckFailed(
-                run.stderr.isEmpty
-                    ? "profcheck exited with code \(run.exitCode ?? -1)"
-                    : run.stderr
-            )
-        }
 
         let output = (run.stdout + "\n" + run.stderr).trimmingCharacters(in: .whitespacesAndNewlines)
         let report = ProfcheckParser.parse(output)
@@ -572,15 +548,6 @@ public struct ArgyllRunner: Sendable {
         return report
     }
 
-    private static func resolveProfileForVerification(_ url: URL) -> URL {
-        let fm = FileManager.default
-        if fm.fileExists(atPath: url.path) { return url }
-        let alt = url.pathExtension.lowercased() == "icc"
-            ? url.deletingPathExtension().appendingPathExtension("icm")
-            : url.deletingPathExtension().appendingPathExtension("icc")
-        return fm.fileExists(atPath: alt.path) ? alt : url
-    }
-
     // MARK: - chartread (Stage 3 interactive)
 
     /// Runs `chartread` and returns an `AsyncStream` of typed events.
@@ -596,7 +563,7 @@ public struct ArgyllRunner: Sendable {
             cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
         } catch {
             return AsyncStream { continuation in
-                continuation.yield(.failed(ArgyllRunnerError.chartreadFailed(error.localizedDescription)))
+                continuation.yield(.failed(ArgyllRunnerError.toolFailed(tool: "chartread", code: -1, logs: [error.localizedDescription])))
                 continuation.finish()
             }
         }
@@ -606,7 +573,7 @@ public struct ArgyllRunner: Sendable {
             args = try ChartreadArgs.build(config: config)
         } catch {
             return AsyncStream { continuation in
-                continuation.yield(.failed(ArgyllRunnerError.chartreadFailed(error.localizedDescription)))
+                continuation.yield(.failed(ArgyllRunnerError.toolFailed(tool: "chartread", code: -1, logs: [error.localizedDescription])))
                 continuation.finish()
             }
         }
@@ -637,7 +604,7 @@ public struct ArgyllRunner: Sendable {
                         workingDirectory: cwd
                     )
                 } catch {
-                    continuation.yield(.failed(ArgyllRunnerError.chartreadFailed(error.localizedDescription)))
+                    continuation.yield(.failed(ArgyllRunnerError.toolFailed(tool: "chartread", code: -1, logs: [error.localizedDescription])))
                     continuation.finish()
                     return
                 }
@@ -724,7 +691,11 @@ public struct ArgyllRunner: Sendable {
                         continuation.yield(.failed(ArgyllRunnerError.missingArtefact(canonical.path)))
                     }
                 } else {
-                    continuation.yield(.failed(ArgyllRunnerError.chartreadFailed("chartread exited with code \(exitCode ?? -1)")))
+                    continuation.yield(.failed(ArgyllRunnerError.toolFailed(
+                        tool: "chartread",
+                        code: exitCode ?? -1,
+                        logs: ["chartread exited with code \(exitCode ?? -1)"]
+                    )))
                 }
                 continuation.finish()
             }
@@ -768,30 +739,19 @@ public struct ArgyllRunner: Sendable {
     ) async throws -> URL {
         let args = try CalibrationTargenArgs.build(config: config)
         let cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
-        let calBasename = config.basename.hasPrefix("CAL_") ? config.basename : "CAL_\(config.basename)"
-        let cleanBasename = try PathSecurity.sanitizeBasename(calBasename)
-        let binaryURL = binaryResolver.resolve("targen")
-        let processId = ProcessID.targen(cleanBasename)
-
-        await ensureNotRunning(id: processId)
-        let events = processManager.events()
-        try await processManager.runStreaming(
-            id: processId,
-            binary: binaryURL,
-            arguments: args,
-            workingDirectory: cwd
+        let cleanBasename = try PathSecurity.sanitizeBasename(
+            CalibrationIdentity.prefix(config.basename)
+        )
+        let processId = ProcessID.targen(cleanBasename)
+        _ = try await runStreamingTool(
+            name: "targen",
+            id: processId,
+            arguments: args,
+            workingDirectory: cwd,
+            onLogBatch: onLogBatch
         )
-        let run = await collect(id: processId, events: events, onLogBatch: onLogBatch)
-
-        guard run.exitCode == 0 else {
-            throw ArgyllRunnerError.processFailed(code: run.exitCode ?? -1, logs: run.lines)
-        }
-
         let ti1URL = cwd.appendingPathComponent("\(cleanBasename).ti1")
-        guard FileManager.default.fileExists(atPath: ti1URL.path) else {
-            throw ArgyllRunnerError.missingArtefact(ti1URL.path)
-        }
-        return ti1URL
+        return try requireArtefact(ti1URL)
     }
 
     /// Computes a `.cal` curve from a measured `CAL_*.ti3`.
@@ -805,7 +765,7 @@ public struct ArgyllRunner: Sendable {
         let args = try PrintcalArgs.build(config: config)
         let cwd = PathSecurity.resolveSafeCwd(config.workingDirectory)
         let binaryURL = binaryResolver.resolve("printcal")
-        let calBasename = config.ti3Basename.hasPrefix("CAL_") ? config.ti3Basename : "CAL_\(config.ti3Basename)"
+        let calBasename = CalibrationIdentity.prefix(config.ti3Basename)
         let processId = ProcessID.printcal(calBasename)
 
         await ensureNotRunning(id: processId)
@@ -821,10 +781,12 @@ public struct ArgyllRunner: Sendable {
         }
 
         guard result.exitCode == 0 else {
-            throw ArgyllRunnerError.printcalFailed(
-                result.stderr.isEmpty
+            throw ArgyllRunnerError.toolFailed(
+                tool: "printcal",
+                code: result.exitCode,
+                logs: [result.stderr.isEmpty
                     ? "printcal exited with code \(result.exitCode)"
-                    : result.stderr
+                    : result.stderr]
             )
         }
 

Packages/ICCeryCore/Sources/ICCeryCore/Argyll/PrinttargArgs.swift

@@ -56,23 +56,19 @@ public enum PrinttargArgs {
             }
             args.append(contentsOf: ["-R", "\(config.customSeed)"])
         case .raster:
-            args.append("-r")
+            args.append(contentsOf: ArgsBuilder.flag("-r", when: true))
         }
 
-        if let label = config.label?.trimmingCharacters(in: .whitespacesAndNewlines),
-           !label.isEmpty {
-            args.append(contentsOf: ["-d", label])
-        }
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-d", config.label))
 
         guard (72...600).contains(config.dpi) else {
             throw PrinttargArgError.invalidDPI(config.dpi)
         }
         args.append(contentsOf: [config.bitDepth.flag, "\(config.dpi)"])
 
-        if !cleanBasename.hasPrefix("CAL_"),
-           let cal = config.calibrationFile?.trimmingCharacters(in: .whitespacesAndNewlines),
-           !cal.isEmpty {
-            args.append(contentsOf: [config.calibrationEmbedOnly ? "-I" : "-K", cal])
+        if !CalibrationIdentity.isCalibration(cleanBasename) {
+            args.append(contentsOf: ArgsBuilder.optionIfNonEmpty(
+                config.calibrationEmbedOnly ? "-I" : "-K", config.calibrationFile))
         }
 
         args.append(cleanBasename)

Packages/ICCeryCore/Sources/ICCeryCore/Argyll/TargenArgs.swift

@@ -70,18 +70,12 @@ public enum TargenArgs {
         if let n = config.neutralSteps, n > 0 {
             args.append(contentsOf: ["-n", "\(n)"])
         }
-        if let nConc = config.neutralConcentration, abs(nConc - 0.50) >= 0.001 {
-            args.append(contentsOf: ["-N", String(format: "%.2f", locale: Locale(identifier: "en_US_POSIX"), nConc)])
-        }
-        if let c = config.preconditioningProfile?.trimmingCharacters(in: .whitespacesAndNewlines), !c.isEmpty {
-            args.append(contentsOf: ["-c", c])
-        }
-        if config.ofpsHighQuality == true {
-            args.append("-G")
-        }
-        if let a = config.ofpsAdaptation {
-            args.append(contentsOf: ["-A", String(format: "%.2f", locale: Locale(identifier: "en_US_POSIX"), a)])
-        }
+        args.append(contentsOf: ArgsBuilder.optionUnlessApprox("-N", config.neutralConcentration, skip: 0.50))
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-c", config.preconditioningProfile))
+        args.append(contentsOf: ArgsBuilder.flag("-G", when: config.ofpsHighQuality == true))
+        args.append(contentsOf: ArgsBuilder.option("-A", config.ofpsAdaptation.map {
+            String(format: "%.2f", locale: Locale(identifier: "en_US_POSIX"), $0)
+        }))
         if let algFlag = config.fullSpreadAlgorithm?.flag {
             args.append(algFlag)
         }
@@ -91,11 +85,9 @@ public enum TargenArgs {
             }
             args.append(contentsOf: ["-l", "\(inkLimit)"])
         }
-        if let v = config.darkEmphasis, abs(v - 1.0) >= 0.001 {
-            args.append(contentsOf: ["-V", String(format: "%.2f", locale: Locale(identifier: "en_US_POSIX"), v)])
-        }
-        if let p = config.devicePower, p > 0, abs(p - 1.0) >= 0.001 {
-            args.append(contentsOf: ["-p", String(format: "%.2f", locale: Locale(identifier: "en_US_POSIX"), p)])
+        args.append(contentsOf: ArgsBuilder.optionUnlessApprox("-V", config.darkEmphasis, skip: 1.0))
+        if let p = config.devicePower, p > 0 {
+            args.append(contentsOf: ArgsBuilder.optionUnlessApprox("-p", p, skip: 1.0))
         }
 
         args.append(cleanBasename)

Packages/ICCeryCore/Sources/ICCeryCore/Files/ArtefactProbe.swift

@@ -78,6 +78,21 @@ public enum ArtefactProbe {
         return nil
     }
 
+    /// Resolve an explicit profile URL, flipping `.icc` ↔ `.icm` when the
+    /// requested path is missing (#69 / issue #83). Any other extension
+    /// (`.mpp`, `.txt`, …) is returned unchanged — never rewritten.
+    public static func resolveProfile(
+        _ url: URL,
+        fileManager: FileManager = .default
+    ) -> URL {
+        if fileManager.fileExists(atPath: url.path) { return url }
+        let ext = url.pathExtension.lowercased()
+        guard ext == "icc" || ext == "icm" else { return url }
+        let alt = url.deletingPathExtension()
+            .appendingPathExtension(ext == "icc" ? "icm" : "icc")
+        return fileManager.fileExists(atPath: alt.path) ? alt : url
+    }
+
     /// Default extension for a *new* profile on macOS (#69).
     public static let defaultProfileExtension = "icc"
 

Packages/ICCeryCore/Sources/ICCeryCore/Files/JSONFileStore.swift

@@ -0,0 +1,85 @@
+import Foundation
+
+/// Policy when a JSON file exists but cannot be decoded.
+public enum JSONCorruptPolicy: Sendable {
+    /// Return `defaultValue` and leave the file untouched.
+    case replaceWithDefault
+    /// Throw the decode error. Callers must not overwrite the file.
+    case throwCorrupt
+}
+
+/// Shared pretty-printed JSON file façade used by settings, wizard state,
+/// and verification history.
+public struct JSONFileStore<T: Codable & Sendable>: Sendable {
+    public let fileURL: URL
+    public let corrupt: JSONCorruptPolicy
+    private let defaultValue: @Sendable () -> T
+    private let encoder: JSONEncoder
+    private let decoder: JSONDecoder
+
+    public init(
+        fileURL: URL,
+        corrupt: JSONCorruptPolicy,
+        defaultValue: @escaping @Sendable () -> T,
+        dateEncoding: JSONEncoder.DateEncodingStrategy = .deferredToDate,
+        dateDecoding: JSONDecoder.DateDecodingStrategy = .deferredToDate
+    ) {
+        self.fileURL = fileURL
+        self.corrupt = corrupt
+        self.defaultValue = defaultValue
+        self.encoder = JSONEncoder.icceryPretty(dateEncoding: dateEncoding)
+        let decoder = JSONDecoder()
+        decoder.dateDecodingStrategy = dateDecoding
+        self.decoder = decoder
+    }
+
+    /// Encodes `value` with the shared pretty / sorted-keys encoder.
+    public func encodePretty(_ value: T) throws -> Data {
+        try encoder.encode(value)
+    }
+
+    public func load() throws -> T {
+        let fm = FileManager.default
+        guard fm.fileExists(atPath: fileURL.path) else {
+            return defaultValue()
+        }
+        let data: Data
+        do {
+            data = try Data(contentsOf: fileURL)
+        } catch {
+            switch corrupt {
+            case .replaceWithDefault:
+                return defaultValue()
+            case .throwCorrupt:
+                throw error
+            }
+        }
+        do {
+            return try decoder.decode(T.self, from: data)
+        } catch {
+            switch corrupt {
+            case .replaceWithDefault:
+                return defaultValue()
+            case .throwCorrupt:
+                throw error
+            }
+        }
+    }
+
+    public func save(_ value: T) throws {
+        try AtomicFileWriter.write(try encodePretty(value), to: fileURL)
+    }
+}
+
+extension JSONEncoder {
+    /// Shared pretty-printed, sorted-keys encoder used by `JSONFileStore`
+    /// and preset export.
+    static func icceryPretty(
+        dateEncoding: JSONEncoder.DateEncodingStrategy = .deferredToDate
+    ) -> JSONEncoder {
+        let encoder = JSONEncoder()
+        encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
+        encoder.dateEncodingStrategy = dateEncoding
+        return encoder
+    }
+}

Packages/ICCeryCore/Sources/ICCeryCore/Measurement/ChartreadRow.swift

@@ -51,58 +51,6 @@ public struct PatchColor: Codable, Sendable, Equatable {
     }
 }
 
-public struct CIEXYZ: Codable, Sendable, Equatable {
-    public let x: Double
-    public let y: Double
-    public let z: Double
-
-    public init(from decoder: Decoder) throws {
-        var container = try decoder.unkeyedContainer()
-        self.x = try container.decode(Double.self)
-        self.y = try container.decode(Double.self)
-        self.z = try container.decode(Double.self)
-    }
-
-    public init(x: Double, y: Double, z: Double) {
-        self.x = x
-        self.y = y
-        self.z = z
-    }
-
-    public func encode(to encoder: Encoder) throws {
-        var container = encoder.unkeyedContainer()
-        try container.encode(x)
-        try container.encode(y)
-        try container.encode(z)
-    }
-}
-
-public struct CIELab: Codable, Sendable, Equatable {
-    public let l: Double
-    public let a: Double
-    public let b: Double
-
-    public init(from decoder: Decoder) throws {
-        var container = try decoder.unkeyedContainer()
-        self.l = try container.decode(Double.self)
-        self.a = try container.decode(Double.self)
-        self.b = try container.decode(Double.self)
-    }
-
-    public init(l: Double, a: Double, b: Double) {
-        self.l = l
-        self.a = a
-        self.b = b
-    }
-
-    public func encode(to encoder: Encoder) throws {
-        var container = encoder.unkeyedContainer()
-        try container.encode(l)
-        try container.encode(a)
-        try container.encode(b)
-    }
-}
-
 public struct SpectralData: Codable, Sendable, Equatable {
     public let bands: Int
     public let startNM: Double

Packages/ICCeryCore/Sources/ICCeryCore/Measurement/ColorDifference.swift

@@ -154,11 +154,9 @@ public enum ColorDifference {
 
     /// Resolve a Lab from a `PatchColor`, computing it from XYZ when Lab is absent.
     public static func resolveLab(_ color: PatchColor) -> LabColor? {
-        if let lab = color.lab {
-            return LabColor(l: lab.l, a: lab.a, b: lab.b)
-        }
+        if let lab = color.lab { return lab }
         guard let xyz = color.xyz else { return nil }
-        return LabColorMath.xyzToLab(XYZColor(x: xyz.x, y: xyz.y, z: xyz.z))
+        return LabColorMath.xyzToLab(xyz)
     }
 
     private static func atan2ToDegrees(_ y: Double, _ x: Double) -> Double {

Packages/ICCeryCore/Sources/ICCeryCore/Measurement/LabColor.swift

@@ -1,7 +1,8 @@
 import Foundation
 
 /// XYZ tristimulus values, stored in the 0–100 scale used by the Argyll fork.
-public struct XYZColor: Sendable, Equatable {
+/// Unkeyed Codable matches `ROW_COLORS_JSON` `[x, y, z]`.
+public struct XYZColor: Codable, Sendable, Equatable {
     public let x: Double
     public let y: Double
     public let z: Double
@@ -11,10 +12,24 @@ public struct XYZColor: Sendable, Equatable {
         self.y = y
         self.z = z
     }
+
+    public init(from decoder: Decoder) throws {
+        var container = try decoder.unkeyedContainer()
+        self.x = try container.decode(Double.self)
+        self.y = try container.decode(Double.self)
+        self.z = try container.decode(Double.self)
     }
 
-/// CIELab value (D50).
-public struct LabColor: Sendable, Equatable {
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.unkeyedContainer()
+        try container.encode(x)
+        try container.encode(y)
+        try container.encode(z)
+    }
+}
+
+/// CIELab value (D50). Unkeyed Codable matches `ROW_COLORS_JSON` `[L, a, b]`.
+public struct LabColor: Codable, Sendable, Equatable {
     public let l: Double
     public let a: Double
     public let b: Double
@@ -24,8 +39,26 @@ public struct LabColor: Sendable, Equatable {
         self.a = a
         self.b = b
     }
+
+    public init(from decoder: Decoder) throws {
+        var container = try decoder.unkeyedContainer()
+        self.l = try container.decode(Double.self)
+        self.a = try container.decode(Double.self)
+        self.b = try container.decode(Double.self)
     }
 
+    public func encode(to encoder: Encoder) throws {
+        var container = encoder.unkeyedContainer()
+        try container.encode(l)
+        try container.encode(a)
+        try container.encode(b)
+    }
+}
+
+/// JSON aliases used by `chartread` row payloads.
+public typealias CIEXYZ = XYZColor
+public typealias CIELab = LabColor
+
 /// sRGB colour in 0–1 display space.
 public struct DisplayRGB: Sendable, Equatable {
     public let r: Double

Packages/ICCeryCore/Sources/ICCeryCore/Process/ProcessManager.swift

@@ -136,31 +136,26 @@ public actor ProcessManager {
     ) throws {
         guard !isRunning(id) else { throw ProcessError.duplicateID(id) }
 
-        let process = Process()
-        let stdinPipe = Pipe()
-        let stdoutPipe = Pipe()
-        let stderrPipe = Pipe()
-        process.executableURL = binary
-        process.arguments = arguments
-        process.currentDirectoryURL = workingDirectory
-        process.standardInput = stdinPipe
-        process.standardOutput = stdoutPipe
-        process.standardError = stderrPipe
-        process.environment = childEnvironment(extra: environment)
-
-        AppLogger(category: "process").debug(
-            "spawn \(id): \(binary.path) \(LogSanitizer.sanitizeArgs(arguments))"
+        let prepared = makeProcess(
+            binary: binary,
+            arguments: arguments,
+            workingDirectory: workingDirectory,
+            environment: environment,
+            includeStdin: true
         )
+        let process = prepared.process
+
+        logSpawn(id: id, binary: binary, arguments: arguments, captured: false)
 
         children[id] = RunningChild(
             process: process,
-            stdin: stdinPipe.fileHandleForWriting,
+            stdin: prepared.stdinPipe?.fileHandleForWriting,
             stdoutDecoder: ProcessLineDecoder(),
             stderrDecoder: ProcessLineDecoder()
         )
 
-        let stdoutHandle = stdoutPipe.fileHandleForReading
-        let stderrHandle = stderrPipe.fileHandleForReading
+        let stdoutHandle = prepared.stdoutPipe.fileHandleForReading
+        let stderrHandle = prepared.stderrPipe.fileHandleForReading
         stdoutHandle.readabilityHandler = { [weak self] handle in
             let data = handle.availableData
             guard let self else { return }
@@ -172,27 +167,23 @@ public actor ProcessManager {
             Task { await self.ingestOutput(data, id: id, isStderr: true, handle: handle) }
         }
 
-        process.terminationHandler = { [weak self] proc in
+        attachTerminationHandler(process) { [weak self] code in
             guard let self else { return }
-            Task { await self.didTerminate(id: id, code: proc.terminationStatus) }
+            Task { await self.didTerminate(id: id, code: code) }
         }
 
         do {
             try process.run()
-            // Fallback watchdog: very fast child exits can race past the
-            // terminationHandler delivery on a loaded host. waitUntilExit()
-            // blocks the detached thread and guarantees didTerminate runs.
-            Task.detached { [weak self, process] in
-                process.waitUntilExit()
-                guard let self else { return }
-                await self.didTerminate(id: id, code: process.terminationStatus)
-            }
         } catch {
             preKillHooks.removeValue(forKey: id)
             children.removeValue(forKey: id)
             emit(.error(id: id, message: error.localizedDescription))
             throw ProcessError.spawnFailed("\(binary.path): \(error.localizedDescription)")
         }
+        startWaitUntilExitWatchdog(process) { [weak self] code in
+            guard let self else { return }
+            Task { await self.didTerminate(id: id, code: code) }
+        }
     }
 
     // MARK: - Spawn (captured)
@@ -210,19 +201,18 @@ public actor ProcessManager {
     ) async throws -> CapturedResult {
         guard !isRunning(id) else { throw ProcessError.duplicateID(id) }
 
-        let process = Process()
-        let stdoutPipe = Pipe()
-        let stderrPipe = Pipe()
-        process.executableURL = binary
-        process.arguments = arguments
-        process.currentDirectoryURL = workingDirectory
-        process.standardOutput = stdoutPipe
-        process.standardError = stderrPipe
-        process.environment = childEnvironment(extra: environment)
-
-        AppLogger(category: "process").debug(
-            "spawn(captured) \(id): \(binary.path) \(LogSanitizer.sanitizeArgs(arguments))"
+        let prepared = makeProcess(
+            binary: binary,
+            arguments: arguments,
+            workingDirectory: workingDirectory,
+            environment: environment,
+            includeStdin: false
         )
+        let process = prepared.process
+        let stdoutPipe = prepared.stdoutPipe
+        let stderrPipe = prepared.stderrPipe
+
+        logSpawn(id: id, binary: binary, arguments: arguments, captured: true)
 
         // Register and set up the termination hand-off before run() so
         // a very fast exit is never missed (#50, #52).
@@ -275,20 +265,12 @@ public actor ProcessManager {
             }
         }
         let box = Box()
-        capturedProcess.terminationHandler = { proc in
-            _ = box.resume(with: proc.terminationStatus)
+        attachTerminationHandler(capturedProcess) { status in
+            _ = box.resume(with: status)
         }
 
         do {
             try process.run()
-            // Fallback watchdog: very fast child exits can race past the
-            // terminationHandler delivery on a loaded host. waitUntilExit()
-            // blocks the detached thread and resumes the box if the handler
-            // did not already do so (#50, #52).
-            Task.detached { [capturedProcess] in
-                capturedProcess.waitUntilExit()
-                _ = box.resume(with: capturedProcess.terminationStatus)
-            }
         } catch {
             _ = box.resume(with: -1)
             captured.removeValue(forKey: id)
@@ -296,6 +278,9 @@ public actor ProcessManager {
             emit(.error(id: id, message: error.localizedDescription))
             throw ProcessError.spawnFailed("\(binary.path): \(error.localizedDescription)")
         }
+        startWaitUntilExitWatchdog(capturedProcess) { status in
+            _ = box.resume(with: status)
+        }
 
         // Close the parent write ends so readDataToEndOfFile() gets EOF
         // as soon as the child exits; the child still has its own copies.
@@ -371,12 +356,7 @@ public actor ProcessManager {
         guard var child = children[id], !child.finalized else { return }
 
         if let tail = child.stdoutDecoder.flushPartial() {
-            if tail.hasPrefix(Self.rowColorsPrefix) {
-                let payload = Data(tail.dropFirst(Self.rowColorsPrefix.count).utf8)
-                emit(.jsonRow(id: id, payload: payload))
-            } else {
-                emit(.stdout(id: id, line: tail))
-            }
+            emitStdoutLine(id: id, line: tail)
         }
         if let tail = child.stderrDecoder.flushPartial() {
             emit(.stderr(id: id, line: tail))
@@ -447,6 +427,86 @@ public actor ProcessManager {
 
     // MARK: - Internals
 
+    private struct PreparedProcess {
+        let process: Process
+        let stdinPipe: Pipe?
+        let stdoutPipe: Pipe
+        let stderrPipe: Pipe
+    }
+
+    private func makeProcess(
+        binary: URL,
+        arguments: [String],
+        workingDirectory: URL?,
+        environment: [String: String],
+        includeStdin: Bool
+    ) -> PreparedProcess {
+        let process = Process()
+        let stdoutPipe = Pipe()
+        let stderrPipe = Pipe()
+        let stdinPipe: Pipe? = includeStdin ? Pipe() : nil
+        process.executableURL = binary
+        process.arguments = arguments
+        process.currentDirectoryURL = workingDirectory
+        process.standardOutput = stdoutPipe
+        process.standardError = stderrPipe
+        if let stdinPipe {
+            process.standardInput = stdinPipe
+        }
+        process.environment = childEnvironment(extra: environment)
+        return PreparedProcess(
+            process: process,
+            stdinPipe: stdinPipe,
+            stdoutPipe: stdoutPipe,
+            stderrPipe: stderrPipe
+        )
+    }
+
+    private nonisolated func logSpawn(
+        id: String,
+        binary: URL,
+        arguments: [String],
+        captured: Bool
+    ) {
+        let prefix = captured ? "spawn(captured)" : "spawn"
+        AppLogger(category: "process").debug(
+            "\(prefix) \(id): \(binary.path) \(LogSanitizer.sanitizeArgs(arguments))"
+        )
+    }
+
+    /// `terminationHandler` can lose a fast-exit race on a loaded host;
+    /// `waitUntilExit` on a detached thread is the fallback (#50, #52).
+    /// The handler is attached before `run()`; the wait thread starts
+    /// only after a successful launch — `terminationStatus` on an
+    /// unlaunched NSTask raises NSInvalidArgumentException.
+    private func attachTerminationHandler(
+        _ process: Process,
+        onExit: @escaping @Sendable (Int32) -> Void
+    ) {
+        process.terminationHandler = { proc in
+            onExit(proc.terminationStatus)
+        }
+    }
+
+    private func startWaitUntilExitWatchdog(
+        _ process: Process,
+        onExit: @escaping @Sendable (Int32) -> Void
+    ) {
+        Task.detached { [process] in
+            process.waitUntilExit()
+            onExit(process.terminationStatus)
+        }
+    }
+
+    private func emitStdoutLine(id: String, line: String) {
+        if line.hasPrefix(Self.rowColorsPrefix) {
+            let payload = Data(line.dropFirst(Self.rowColorsPrefix.count).utf8)
+            emit(.jsonRow(id: id, payload: payload))
+        } else {
+            emit(.stdout(id: id, line: line))
+        }
+    }
+
     private func childEnvironment(extra: [String: String]) -> [String: String] {
         var env = ProcessInfo.processInfo.environment
         env["ARGYLL_NOT_INTERACTIVE"] = "1"
@@ -478,15 +538,14 @@ public actor ProcessManager {
 
         let log = AppLogger(category: "subprocess")
         for line in lines {
-            if !isStderr, line.hasPrefix(Self.rowColorsPrefix) {
-                let payload = Data(line.dropFirst(Self.rowColorsPrefix.count).utf8)
-                emit(.jsonRow(id: id, payload: payload))
-            } else if isStderr {
+            if !isStderr {
+                emitStdoutLine(id: id, line: line)
+                if !line.hasPrefix(Self.rowColorsPrefix) {
+                    log.info("[\(id)] \(line)")
+                }
+            } else {
                 log.warn("[\(id)] \(line)")
                 emit(.stderr(id: id, line: line))
-            } else {
-                log.info("[\(id)] \(line)")
-                emit(.stdout(id: id, line: line))
             }
         }
     }
@@ -528,11 +587,7 @@ public actor ProcessManager {
         // Flush unterminated tail lines.
         if var decoder = Optional(child.stdoutDecoder),
            let tail = decoder.finish() {
-            if tail.hasPrefix(Self.rowColorsPrefix) {
-                emit(.jsonRow(id: id, payload: Data(tail.dropFirst(Self.rowColorsPrefix.count).utf8)))
-            } else {
-                emit(.stdout(id: id, line: tail))
-            }
+            emitStdoutLine(id: id, line: tail)
         }
         if var decoder = Optional(child.stderrDecoder),
            let tail = decoder.finish() {

Packages/ICCeryCore/Sources/ICCeryCore/Profile/CalibrationIdentity.swift

@@ -0,0 +1,54 @@
+import Foundation
+
+/// Canonical `CAL_` / original-stem pairing for Stage 0 (issue #29 / #83).
+///
+/// The live wizard basename, the persisted `calibrationOriginalBasename`,
+/// and the runner all derive identity from this type. Do not add a second
+/// `hasPrefix("CAL_")` ternary elsewhere.
+public struct CalibrationIdentity: Equatable, Sendable {
+    /// Never has a `CAL_` prefix. Empty only when the live basename is empty.
+    public var originalBasename: String
+    /// Always `CAL_{original}` when original is non-empty.
+    public var calibrationBasename: String
+
+    public init(originalBasename: String, calibrationBasename: String) {
+        self.originalBasename = originalBasename
+        self.calibrationBasename = calibrationBasename
+    }
+
+    public static func isCalibration(_ basename: String) -> Bool {
+        basename.hasPrefix("CAL_")
+    }
+
+    /// The only place that adds a `CAL_` prefix.
+    public static func prefix(_ original: String) -> String {
+        if original.isEmpty { return original }
+        return original.hasPrefix("CAL_") ? original : "CAL_\(original)"
+    }
+
+    /// Strip a single leading `CAL_` if present.
+    public static func strip(_ basename: String) -> String {
+        basename.hasPrefix("CAL_") ? String(basename.dropFirst(4)) : basename
+    }
+
+    /// Derive identity from the live wizard basename and the persisted
+    /// original. A non-empty persisted original wins over a `CAL_` live
+    /// name (Force Quit mid-calibration). An empty live basename always
+    /// produces an empty identity — a persisted original must never
+    /// resurrect a target that no longer exists (#83).
+    public static func parse(liveBasename: String, persistedOriginal: String) -> CalibrationIdentity {
+        guard !liveBasename.isEmpty else {
+            return CalibrationIdentity(originalBasename: "", calibrationBasename: "")
+        }
+        let original: String
+        if liveBasename.hasPrefix("CAL_") {
+            original = persistedOriginal.isEmpty ? strip(liveBasename) : persistedOriginal
+        } else {
+            original = liveBasename
+        }
+        return CalibrationIdentity(
+            originalBasename: original,
+            calibrationBasename: prefix(original)
+        )
+    }
+}

Packages/ICCeryCore/Sources/ICCeryCore/Profile/CalibrationTargenArgs.swift

@@ -86,7 +86,7 @@ public enum CalibrationTargenArgs {
             args.append(contentsOf: ["-l", "\(inkLimit)"])
         }
 
-        let calBasename = cleanBasename.hasPrefix("CAL_") ? cleanBasename : "CAL_\(cleanBasename)"
+        let calBasename = CalibrationIdentity.prefix(cleanBasename)
         args.append(calBasename)
         return args
     }

Packages/ICCeryCore/Sources/ICCeryCore/Profile/ColprofArgs.swift

@@ -26,18 +26,13 @@ public enum ColprofArgs {
         let cleanBasename = try PathSecurity.sanitizeBasename(config.basename)
 
         var args: [String] = ["-v"]
-
         args.append(contentsOf: ["-a", config.algorithm])
         args.append(contentsOf: ["-q", config.quality])
-
-        if let intent = config.intent?.trimmingCharacters(in: .whitespaces), !intent.isEmpty {
-            args.append(contentsOf: ["-t", intent])
-        }
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-t", config.intent))
 
         if let fwa = config.fwa?.trimmingCharacters(in: .whitespaces) {
             switch fwa.lowercased() {
             case "none", "":
-                // "none" omits the flag; an explicit empty string means bare -f.
                 if fwa.isEmpty {
                     args.append("-f")
                 }
@@ -46,32 +41,20 @@ public enum ColprofArgs {
             }
         }
 
-        if let illuminant = config.illuminant?.trimmingCharacters(in: .whitespaces), !illuminant.isEmpty {
-            args.append(contentsOf: ["-i", illuminant])
-        }
-
-        if let observer = config.observer?.trimmingCharacters(in: .whitespaces), !observer.isEmpty {
-            args.append(contentsOf: ["-o", observer])
-        }
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-i", config.illuminant))
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-o", config.observer))
 
         if let inputCond = config.inputViewingCond?.trimmingCharacters(in: .whitespaces),
            !inputCond.isEmpty, inputCond.lowercased() != "none" {
             args.append(contentsOf: ["-c", inputCond])
         }
-
         if let outputCond = config.outputViewingCond?.trimmingCharacters(in: .whitespaces),
            !outputCond.isEmpty, outputCond.lowercased() != "none" {
             args.append(contentsOf: ["-d", outputCond])
         }
 
-        let profileDescription = config.description?.trimmingCharacters(in: .whitespaces)
-        if let description = profileDescription, !description.isEmpty {
-            args.append(contentsOf: ["-D", description])
-        }
-
-        if let copyright = config.copyright?.trimmingCharacters(in: .whitespaces), !copyright.isEmpty {
-            args.append(contentsOf: ["-C", copyright])
-        }
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-D", config.description))
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-C", config.copyright))
 
         args.append(cleanBasename)
         return args

Packages/ICCeryCore/Sources/ICCeryCore/Profile/PrintcalArgs.swift

@@ -79,16 +79,9 @@ public enum PrintcalArgs {
 
         var args: [String] = ["-v", "-e"]
 
-        if config.noInkLimit {
-            args.append("-I")
-        }
-        if config.verify {
-            args.append("-z")
-        }
-        if let previous = config.previousCalPath?.trimmingCharacters(in: .whitespacesAndNewlines),
-           !previous.isEmpty {
-            args.append(contentsOf: ["-a", previous])
-        }
+        args.append(contentsOf: ArgsBuilder.flag("-I", when: config.noInkLimit))
+        args.append(contentsOf: ArgsBuilder.flag("-z", when: config.verify))
+        args.append(contentsOf: ArgsBuilder.optionIfNonEmpty("-a", config.previousCalPath))
         if let tac = config.totalInkLimit, tac > 0 {
             args.append(contentsOf: ["-m", String(format: "%.1f", tac)])
         } else if let tac = config.totalInkLimit {
@@ -107,7 +100,7 @@ public enum PrintcalArgs {
         }
         args.append(contentsOf: ["-o", config.outputURL.path])
 
-        let calBasename = cleanBasename.hasPrefix("CAL_") ? cleanBasename : "CAL_\(cleanBasename)"
+        let calBasename = CalibrationIdentity.prefix(cleanBasename)
         args.append(calBasename)
         return args
     }

Packages/ICCeryCore/Sources/ICCeryCore/Profile/VerificationHistoryStore.swift

@@ -13,8 +13,7 @@ public actor VerificationHistoryStore {
     private var records: [VerificationRecord] = []
 
     private let capacity: Int
-    private let encoder: JSONEncoder
-    private let decoder: JSONDecoder
+    private let fileStore: JSONFileStore<[VerificationRecord]>
 
     public init(
         url: URL = AppPaths.appDataDir.appendingPathComponent("verification_history.json"),
@@ -22,13 +21,13 @@ public actor VerificationHistoryStore {
     ) {
         self.url = url
         self.capacity = capacity
-
-        self.encoder = JSONEncoder()
-        self.encoder.dateEncodingStrategy = .iso8601
-        self.encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
-
-        self.decoder = JSONDecoder()
-        self.decoder.dateDecodingStrategy = .iso8601
+        self.fileStore = JSONFileStore(
+            fileURL: url,
+            corrupt: .throwCorrupt,
+            defaultValue: { [] },
+            dateEncoding: .iso8601,
+            dateDecoding: .iso8601
+        )
     }
 
     /// Loads records from disk. Returns the existing cache if already loaded.
@@ -37,10 +36,8 @@ public actor VerificationHistoryStore {
     /// is never overwritten in that case.
     public func load() throws -> [VerificationRecord] {
         guard records.isEmpty else { return records }
-        let fm = FileManager.default
-        guard fm.fileExists(atPath: url.path),
-              let data = try? Data(contentsOf: url) else { return [] }
-        records = try decoder.decode([VerificationRecord].self, from: data)
+        guard FileManager.default.fileExists(atPath: url.path) else { return [] }
+        records = try fileStore.load()
         return records
     }
 
@@ -76,7 +73,11 @@ public actor VerificationHistoryStore {
     }
 
     /// Removes all history and updates disk.
+    ///
+    /// Loads the existing history first and propagates any load error so an
+    /// unparseable file is never overwritten.
     public func clear() throws {
+        try load()
         try write([])
         records = []
     }
@@ -106,8 +107,7 @@ public actor VerificationHistoryStore {
 
     /// Writes `records` through a temp file and rename.
     private func write(_ records: [VerificationRecord]) throws {
-        let data = try encoder.encode(records)
-        try AtomicFileWriter.write(data, to: url)
+        try fileStore.save(records)
     }
 
     private func csvRow(_ fields: [String]) -> String {

Packages/ICCeryCore/Sources/ICCeryCore/Settings/PresetMapping.swift

@@ -0,0 +1,225 @@
+import Foundation
+
+extension TargenConfig {
+    /// Stage 1 fields of a profiling preset. Optional advanced flags stay
+    /// `nil` when the preset omitted them so argv builders skip the flag.
+    public init(preset: ProfilingPreset, basename: String, workingDirectory: URL?) {
+        self.init(
+            colourSpace: preset.colourSpace.lowercased() == "cmyk" ? .cmyk : .rgb,
+            patchCount: preset.patchCount,
+            whitePatches: preset.whitePatches,
+            blackPatches: preset.blackPatches,
+            greySteps: preset.greySteps,
+            singleChannelSteps: preset.singleChannelSteps,
+            neutralSteps: preset.neutralSteps,
+            neutralConcentration: preset.neutralConcentration,
+            preconditioningProfile: preset.preconditioningProfile,
+            // An explicit `false` is preserved — distinguishable from a
+            // missing key; `-G` is only emitted for `true` (#82).
+            ofpsHighQuality: preset.ofpsHighQuality,
+            ofpsAdaptation: preset.ofpsAdaptation,
+            fullSpreadAlgorithm: preset.fullSpreadAlgorithm.flatMap { FullSpreadAlgorithm(presetValue: $0) }.flatMap { $0 == .ofps ? nil : $0 },
+            totalInkLimit: preset.totalInkLimit,
+            darkEmphasis: preset.darkEmphasis,
+            devicePower: preset.devicePower,
+            basename: basename,
+            workingDirectory: workingDirectory
+        )
+    }
+}
+
+extension PrinttargConfig {
+    public init(
+        preset: ProfilingPreset,
+        basename: String,
+        workingDirectory: URL?,
+        calibrationFile: String?,
+        label: String? = nil
+    ) {
+        let page: PageSize
+        let customW: Double
+        let customH: Double
+        if let size = PageSize(rawValue: preset.pageSize) {
+            page = size
+            customW = 210
+            customH = 297
+        } else if let (w, h) = PageSize.parseCustom(preset.pageSize) {
+            page = .custom
+            customW = w
+            customH = h
+        } else {
+            page = .a4
+            customW = 210
+            customH = 297
+        }
+
+        let layout: LayoutOrder
+        let seed = preset.randomSeed ?? 1
+        if preset.noRandomize == true {
+            layout = .raster
+        } else if seed == 1 {
+            layout = .deterministic
+        } else {
+            layout = .customSeed
+        }
+
+        self.init(
+            instrument: PrintInstrument(rawValue: preset.instrument) ?? .i1,
+            pageSize: page,
+            customPageWidth: customW,
+            customPageHeight: customH,
+            bitDepth: preset.bitDepth == 16 ? .sixteen : .eight,
+            dpi: preset.dpi,
+            layoutOrder: layout,
+            customSeed: seed,
+            label: label,
+            calibrationFile: calibrationFile,
+            calibrationEmbedOnly: false,
+            basename: basename,
+            workingDirectory: workingDirectory
+        )
+    }
+}
+
+extension ColprofConfig {
+    public init(
+        preset: ProfilingPreset,
+        basename: String,
+        workingDirectory: URL?,
+        description: String? = nil,
+        copyright: String? = nil
+    ) {
+        self.init(
+            algorithm: preset.colprofAlgorithm ?? "l",
+            quality: preset.colprofQuality ?? "m",
+            intent: Self.nilIfEmpty(preset.colprofIntent),
+            fwa: preset.colprofFwa,
+            illuminant: Self.nilIfEmpty(preset.colprofIlluminant),
+            observer: Self.nilIfEmpty(preset.colprofObserver),
+            inputViewingCond: Self.nilIfEmpty(preset.colprofInputViewingCond),
+            outputViewingCond: Self.nilIfEmpty(preset.colprofOutputViewingCond),
+            description: description,
+            copyright: copyright,
+            basename: basename,
+            workingDirectory: workingDirectory
+        )
+    }
+
+    private static func nilIfEmpty(_ value: String?) -> String? {
+        guard let value, !value.isEmpty else { return nil }
+        return value
+    }
+}
+
+/// User-facing FWA selection for the Stage 4 form, plus the two
+/// directions of `colprof_fwa` conversion centralised here so the view
+/// models carry no mapping switches of their own (#82).
+public enum ColprofFwaSelection: String, CaseIterable, Sendable, Equatable {
+    case none = "none"
+    case empty = ""
+    case D50 = "D50"
+    case D65 = "D65"
+    case custom = "custom"
+
+    public var displayName: String {
+        switch self {
+        case .none: return "None"
+        case .empty: return "Bare (-f)"
+        case .D50: return "D50"
+        case .D65: return "D65"
+        case .custom: return "Custom .sp"
+        }
+    }
+
+    /// Preset `colprof_fwa` → selection. `nil`/`"none"` map to `.none`,
+    /// `""` to `.empty`, `D50`/`D65` case-insensitively, and any other
+    /// string is a custom `.sp` path.
+    public init(presetValue: String?) {
+        switch presetValue?.lowercased() {
+        case nil, "none": self = .none
+        case "": self = .empty
+        case "d50": self = .D50
+        case "d65": self = .D65
+        default: self = .custom
+        }
+    }
+
+    /// Selection → `colprof_fwa` value. `.custom` returns `customPath`.
+    public func presetValue(customPath: String) -> String? {
+        switch self {
+        case .none: return nil
+        case .empty: return ""
+        case .D50: return "D50"
+        case .D65: return "D65"
+        case .custom: return customPath
+        }
+    }
+}
+
+extension PageSize {
+    /// `"210x297"` custom page parse used by presets (issue #82).
+    public static func parseCustom(_ raw: String) -> (Double, Double)? {
+        let parts = raw.lowercased().split(separator: "x")
+        guard parts.count == 2,
+              let w = Double(parts[0]), let h = Double(parts[1]),
+              w >= 50, h >= 50 else { return nil }
+        return (w, h)
+    }
+}
+
+extension ProfilingPreset {
+    /// Snapshot of the three live configs plus calibration toggles.
+    public init(
+        id: String,
+        name: String,
+        description: String,
+        targen: TargenConfig,
+        printtarg: PrinttargConfig,
+        colprof: ColprofConfig,
+        calibrationFile: String?,
+        applyCalibration: Bool?
+    ) {
+        let pageSize: String
+        if printtarg.pageSize == .custom {
+            pageSize = "\(Int(printtarg.customPageWidth))x\(Int(printtarg.customPageHeight))"
+        } else {
+            pageSize = printtarg.pageSize.rawValue
+        }
+        self.init(
+            id: id,
+            name: name,
+            description: description,
+            colourSpace: targen.colourSpace == .cmyk ? "cmyk" : "rgb",
+            patchCount: targen.patchCount,
+            whitePatches: targen.whitePatches,
+            blackPatches: targen.blackPatches,
+            greySteps: targen.greySteps,
+            singleChannelSteps: targen.singleChannelSteps,
+            neutralSteps: targen.neutralSteps,
+            neutralConcentration: targen.neutralConcentration,
+            preconditioningProfile: targen.preconditioningProfile,
+            ofpsHighQuality: targen.ofpsHighQuality,
+            ofpsAdaptation: targen.ofpsAdaptation,
+            fullSpreadAlgorithm: (targen.fullSpreadAlgorithm ?? .ofps).presetValue,
+            totalInkLimit: targen.totalInkLimit,
+            darkEmphasis: targen.darkEmphasis,
+            devicePower: targen.devicePower,
+            instrument: printtarg.instrument.rawValue,
+            pageSize: pageSize,
+            bitDepth: printtarg.bitDepth.rawValue,
+            dpi: printtarg.dpi,
+            randomSeed: printtarg.layoutOrder == .deterministic ? 1 : printtarg.customSeed,
+            noRandomize: printtarg.layoutOrder == .raster,
+            calibrationFile: calibrationFile,
+            applyCalibration: applyCalibration,
+            colprofAlgorithm: colprof.algorithm,
+            colprofQuality: colprof.quality,
+            colprofIntent: colprof.intent,
+            colprofFwa: colprof.fwa,
+            colprofIlluminant: colprof.illuminant,
+            colprofObserver: colprof.observer,
+            colprofInputViewingCond: colprof.inputViewingCond,
+            colprofOutputViewingCond: colprof.outputViewingCond
+        )
+    }
+}

Packages/ICCeryCore/Sources/ICCeryCore/Settings/PresetStore.swift

@@ -60,9 +60,7 @@ public final class PresetStore: Sendable {
 
     /// Single-preset pretty JSON export.
     public func export(_ preset: ProfilingPreset) throws -> Data {
-        let encoder = JSONEncoder()
-        encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
-        return try encoder.encode(preset)
+        return try JSONEncoder.icceryPretty().encode(preset)
     }
 
     /// Parses + validates a preset from JSON. The preset is assigned a

Packages/ICCeryCore/Sources/ICCeryCore/Settings/SettingsStore.swift

@@ -4,8 +4,8 @@ import Foundation
 /// `~/Library/Application Support/com.gronod.iccery2/settings.json`
 /// (issue #5 — the v1 path is never read).
 ///
-/// Writes are atomic (`AtomicFileWriter`). Invalid/corrupt JSON falls
-/// back to defaults. Saving posts `settingsDidChange` so #20 can
+/// Writes are atomic (`JSONFileStore` → `AtomicFileWriter`). Invalid/corrupt
+/// JSON falls back to defaults. Saving posts `settingsDidChange` so #20 can
 /// reclassify swatches.
 public final class SettingsStore: Sendable {
 
@@ -14,18 +14,19 @@ public final class SettingsStore: Sendable {
         Notification.Name("com.gronod.iccery2.settingsDidChange")
 
     public let fileURL: URL
+    private let store: JSONFileStore<AppSettings>
 
     public init(fileURL: URL = AppPaths.appDataDir.appendingPathComponent("settings.json")) {
         self.fileURL = fileURL
+        self.store = JSONFileStore(
+            fileURL: fileURL,
+            corrupt: .replaceWithDefault,
+            defaultValue: { .default }
+        )
     }
 
     public func load() -> AppSettings {
-        guard let data = try? Data(contentsOf: fileURL),
-              let settings = try? JSONDecoder().decode(AppSettings.self, from: data)
-        else {
-            return .default
-        }
-        return settings
+        (try? store.load()) ?? .default
     }
 
     /// Validates before persisting — throws `SettingsError` listing
@@ -35,9 +36,7 @@ public final class SettingsStore: Sendable {
         guard errors.isEmpty else {
             throw SettingsError.validationFailed(errors)
         }
-        let encoder = JSONEncoder()
-        encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
-        try AtomicFileWriter.write(encoder.encode(settings), to: fileURL)
+        try store.save(settings)
         NotificationCenter.default.post(name: Self.settingsDidChange, object: nil)
     }
 

Packages/ICCeryCore/Sources/ICCeryCore/Wizard/WizardState.swift

@@ -74,23 +74,24 @@ public struct WizardState: Codable, Equatable, Sendable {
 /// Atomic JSON persistence for `WizardState` (issue #4).
 public final class WizardStateStore: Sendable {
     public let fileURL: URL
+    private let store: JSONFileStore<WizardState>
 
     public init(
         fileURL: URL = AppPaths.appDataDir.appendingPathComponent("wizard_state.json")
     ) {
         self.fileURL = fileURL
+        self.store = JSONFileStore(
+            fileURL: fileURL,
+            corrupt: .replaceWithDefault,
+            defaultValue: { .default }
+        )
     }
 
     public func load() -> WizardState {
-        guard let data = try? Data(contentsOf: fileURL),
-              let state = try? JSONDecoder().decode(WizardState.self, from: data)
-        else { return .default }
-        return state
+        (try? store.load()) ?? .default
     }
 
     public func save(_ state: WizardState) throws {
-        let encoder = JSONEncoder()
-        encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
-        try AtomicFileWriter.write(encoder.encode(state), to: fileURL)
+        try store.save(state)
     }
 }

README.md

@@ -11,7 +11,8 @@ All measurement, chart generation, and profile mathematics live in the [Gronod A
 | Floor | macOS 14 Sonoma, universal `arm64` + `x86_64` |
 | Default branch | `develop` |
 | M6 | Stage 0 calibration, CGATS import, SceneKit gamut viewer, packaging — shipped on `develop` |
-| M7 | UAT-ready hardening of the v2.0 wizard paths |
+| M7 | Pre-UAT hardening & baseline consolidation — shipped on `develop` |
+| M8 | Deduplication/consolidation contracts & UAT-ready hardening (#79–#86) — in flight on `milestone/m8-consolidation` |
 | Licence | Proprietary source in [`LICENCE.md`](LICENCE.md); bundled Argyll sidecars remain AGPLv3 |
 
 ## What it does
@@ -170,11 +171,11 @@ Agent / branch rules: [`AGENTS.md`](AGENTS.md), [`BUILD-PLAN.md`](BUILD-PLAN.md)
 
 ```
 develop
-  └── milestone/mN-<slug>          # integration only
+  └── milestone/m8-consolidation   # integration branch
         └── feat/<issue>-<slug>    # one issue per branch
 ```
 
-Feature PRs target the current milestone branch, not `develop`. The milestone branch merges to `develop` when its issues are green. M7 is small; its PRs target `develop` directly. Do not open umbrella "bugfix" branches that mix tickets.
+Feature PRs target the current milestone branch, not `develop`. The milestone branch merges to `develop` when its issues are green. Completion PRs for issues #79–#86 target `milestone/m8-consolidation`; `milestone/m8-consolidation` merges into `develop` once all milestone gates pass. Do not open umbrella "bugfix" branches that mix tickets.
 
 ## Licence
 

Sources/ICCery/CalibrationView.swift

@@ -4,6 +4,7 @@ import ICCeryCore
 /// Stage 0 calibration dashboard (issue #29, docs/07).
 struct CalibrationView: View {
     @Bindable var model: CalibrationViewModel
+    @Bindable var wizard: WizardViewModel
 
     var body: some View {
         VStack(alignment: .leading, spacing: 0) {
@@ -51,11 +52,15 @@ struct CalibrationView: View {
                     HStack(spacing: 12) {
                         Button("Generate Target") { model.generateTarget() }
                             .accessibilityIdentifier("btnCalGenerate")
-                            .disabled(!model.canGenerate)
+                            .disabled(wizard.basename.isEmpty
+                                      || wizard.effectiveWorkingDirectory == nil
+                                      || model.isGenerating)
 
                         Button("Create Layout & Print") { model.createLayout() }
                             .accessibilityIdentifier("btnCalLayout")
-                            .disabled(!model.canGenerate)
+                            .disabled(wizard.basename.isEmpty
+                                      || wizard.effectiveWorkingDirectory == nil
+                                      || model.isGenerating)
 
                         Button("Measure") { model.measureChart() }
                             .accessibilityIdentifier("btnCalMeasure")
@@ -90,13 +95,6 @@ struct CalibrationView: View {
                         .frame(minHeight: 80, maxHeight: 120)
                     }
                 }
-
-                if let error = model.lastError {
-                    Section {
-                        Text(error)
-                            .foregroundStyle(.red)
-                    }
-                }
             }
             .formStyle(.grouped)
 

Sources/ICCery/CalibrationViewModel.swift

@@ -25,7 +25,6 @@ final class CalibrationViewModel {
     var calibrationLog: [String] = []
     var isGenerating = false
     var isComputing = false
-    var lastError: String?
 
     init(workflow: TargetWorkflowViewModel, profile: ProfileWorkflowViewModel, environment: AppEnvironment) {
         self.workflow = workflow
@@ -50,14 +49,15 @@ final class CalibrationViewModel {
         return cwd.appendingPathComponent("\(calBasename).ti3")
     }
 
-    private var calBasename: String {
-        if wizard.basename.hasPrefix("CAL_") { return wizard.basename }
-        let original = !wizard.calibrationOriginalBasename.isEmpty
-            ? wizard.calibrationOriginalBasename
-            : wizard.basename
-        return "CAL_\(original)"
+    private var identity: CalibrationIdentity {
+        CalibrationIdentity.parse(
+            liveBasename: wizard.basename,
+            persistedOriginal: wizard.calibrationOriginalBasename
+        )
     }
 
+    private var calBasename: String { identity.calibrationBasename }
+
     private var calOutputURL: URL? {
         guard let cwd = wizard.effectiveWorkingDirectory else { return nil }
         return cwd.appendingPathComponent("\(calBasename).cal")
@@ -68,43 +68,38 @@ final class CalibrationViewModel {
     func generateTarget() {
         guard canGenerate, let cwd = wizard.effectiveWorkingDirectory else { return }
         // Snapshot the original (pre-CAL_) basename before changing the live one.
-        if !wizard.basename.hasPrefix("CAL_") {
-            wizard.calibrationOriginalBasename = wizard.basename
-        } else if wizard.calibrationOriginalBasename.isEmpty {
-            wizard.calibrationOriginalBasename = String(wizard.basename.dropFirst(4))
-        }
-        let original = wizard.calibrationOriginalBasename
-        wizard.basename = "CAL_\(original)"
+        let identity = CalibrationIdentity.parse(
+            liveBasename: wizard.basename,
+            persistedOriginal: wizard.calibrationOriginalBasename
+        )
+        wizard.calibrationOriginalBasename = identity.originalBasename
+        wizard.basename = identity.calibrationBasename
         wizard.sessionMode = .calibration
 
-        isGenerating = true
-        calibrationLog = []
-        lastError = nil
-
         let config = CalibrationTargenConfig(
             colourSpace: colourSpace,
             steps: steps,
             whitePatches: whitePatches,
             includeNeutralEmphasis: includeNeutralEmphasis,
             inkLimit: inkLimitValue,
-            basename: original,
+            basename: identity.originalBasename,
             workingDirectory: cwd
         )
 
         Task { @MainActor in
-            defer { self.isGenerating = false }
-
             do {
-                _ = try await self.environment.runner.runCalibrationTargen(config: config) { batch in
-                    Task { @MainActor [weak self] in
-                        self?.calibrationLog.append(contentsOf: batch)
-                    }
+                _ = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.isGenerating = $0 },
+                    resetLog: { self.calibrationLog = [] },
+                    onLog: { self.calibrationLog.append(contentsOf: $0) }
+                ) { onLog in
+                    try await self.environment.runner.runCalibrationTargen(
+                        config: config, onLogBatch: onLog)
                 }
                 self.wizard.refreshGating()
                 self.wizard.showNotice("Calibration target generated.")
                 self.wizard.go(to: .layOutPrint)
             } catch {
-                self.lastError = error.localizedDescription
                 self.wizard.showNotice(
                     "Calibration target failed: \(error.localizedDescription)",
                     kind: .error
@@ -139,15 +134,13 @@ final class CalibrationViewModel {
         // "already exists" when the user declines overwrite. We do not
         // silently clobber.
         if FileManager.default.fileExists(atPath: outputURL.path) {
-            lastError = "\(outputURL.lastPathComponent) already exists. Rename or overwrite it first."
-            wizard.showNotice(lastError!, kind: .error)
+            wizard.showNotice(
+                "\(outputURL.lastPathComponent) already exists. Rename or overwrite it first.",
+                kind: .error
+            )
             return
         }
 
-        isComputing = true
-        calibrationLog = []
-        lastError = nil
-
         let config = PrintcalConfig(
             ti3Basename: calBasename,
             workingDirectory: cwd,
@@ -160,13 +153,14 @@ final class CalibrationViewModel {
         )
 
         Task { @MainActor in
-            defer { self.isComputing = false }
-
             do {
-                let url = try await self.environment.runner.runPrintcal(config: config) { batch in
-                    Task { @MainActor [weak self] in
-                        self?.calibrationLog.append(contentsOf: batch)
-                    }
+                let url = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.isComputing = $0 },
+                    resetLog: { self.calibrationLog = [] },
+                    onLog: { self.calibrationLog.append(contentsOf: $0) }
+                ) { onLog in
+                    try await self.environment.runner.runPrintcal(
+                        config: config, onLogBatch: onLog)
                 }
                 self.computedCalURL = url
                 self.profile.calibrationFile = url.path
@@ -174,7 +168,6 @@ final class CalibrationViewModel {
                 self.wizard.showNotice("Calibration curves computed.")
                 self.wizard.restoreCalibration()
             } catch {
-                self.lastError = error.localizedDescription
                 self.wizard.showNotice(
                     "Calibration curve computation failed: \(error.localizedDescription)",
                     kind: .error

Sources/ICCery/FileDialogService.swift

@@ -29,13 +29,8 @@ final class FileDialogService {
 
     /// `selectTargetFile` — **save** panel for the new `.ti1` target.
     func selectTargetFile(startingAt start: URL? = nil) -> URL? {
-        let panel = NSSavePanel()
-        panel.nameFieldStringValue = "target.ti1"
-        panel.allowedContentTypes = utTypes(["ti1"])
-        panel.allowsOtherFileTypes = false
-        panel.directoryURL = start
-        panel.message = "Choose the .ti1 target file to create"
-        return run(panel)
+        save(named: "target.ti1", extensions: ["ti1"], startingAt: start,
+             message: "Choose the .ti1 target file to create")
     }
 
     /// `selectExistingTarget` — open `.ti1`/`.ti2` (docs/06 §Resume, #140).
@@ -66,12 +61,7 @@ final class FileDialogService {
 
     /// `selectCsvSavePath` — verification-history CSV export.
     func selectCsvSavePath(startingAt start: URL? = nil) -> URL? {
-        let panel = NSSavePanel()
-        panel.nameFieldStringValue = "verification-history.csv"
-        panel.allowedContentTypes = utTypes(["csv"])
-        panel.allowsOtherFileTypes = false
-        panel.directoryURL = start
-        return run(panel)
+        save(named: "verification-history.csv", extensions: ["csv"], startingAt: start)
     }
 
     /// `selectCalFile` — `.cal` calibration curves.
@@ -88,17 +78,27 @@ final class FileDialogService {
 
     /// `btnExportActivePreset` — save a `.json` preset file.
     func selectPresetSavePath(name: String, startingAt start: URL? = nil) -> URL? {
-        let panel = NSSavePanel()
-        panel.nameFieldStringValue = "\(name).json"
-        panel.allowedContentTypes = utTypes(["json"])
-        panel.allowsOtherFileTypes = false
-        panel.directoryURL = start
-        panel.message = "Export this preset as JSON"
-        return run(panel)
+        save(named: "\(name).json", extensions: ["json"], startingAt: start,
+             message: "Export this preset as JSON")
     }
 
     // MARK: - Internals (private — not a shared public picker API)
 
+    private func save(
+        named: String,
+        extensions: [String],
+        startingAt start: URL?,
+        message: String? = nil
+    ) -> URL? {
+        let panel = NSSavePanel()
+        panel.nameFieldStringValue = named
+        panel.allowedContentTypes = utTypes(extensions)
+        panel.allowsOtherFileTypes = false
+        panel.directoryURL = start
+        if let message { panel.message = message }
+        return run(panel)
+    }
+
     private func open(
         extensions: [String],
         startingAt start: URL?,

Sources/ICCery/ICCeryApp.swift

@@ -36,6 +36,17 @@ struct ICCeryApp: App {
 final class AppDelegate: NSObject, NSApplicationDelegate {
     private var terminationRequested = false
 
+    func applicationDidFinishLaunching(_ notification: Notification) {
+        // SwiftUI `Window` scenes launched by XCTest stay
+        // `.runningBackground` unless the app takes regular activation
+        // and orders the window front (CI run 29804).
+        NSApp.setActivationPolicy(.regular)
+        for window in NSApp.windows {
+            window.makeKeyAndOrderFront(nil)
+        }
+        NSApp.activate(ignoringOtherApps: true)
+    }
+
     func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
         true
     }

Sources/ICCery/MeasurementWorkflowViewModel.swift

@@ -63,15 +63,15 @@ final class MeasurementWorkflowViewModel {
     var rows: [ChartreadRow] = []
     var swatchRows: [SwatchRow] = []
     var showRemoveSheetNotice = false
-    var lastError: String?
+    /// Stage-local chartread error notice (`#chartreadLastError`, #80).
+    var chartreadNotice: Notice?
     private var chartreadTask: Task<Void, Never>?
 
     // MARK: - Averaging
 
     var passSnapshots: [URL] = []
     var isFinishing = false
-    var finishNotice: String?
-    var finishNoticeIsError = false
+    var finishNotice: Notice?
     var resumedFromTi2 = false
 
     init(wizard: WizardViewModel, environment: AppEnvironment) {
@@ -186,7 +186,7 @@ final class MeasurementWorkflowViewModel {
         isChartreadRunning = true
         chartreadState = .idle
         currentPrompt = nil
-        lastError = nil
+        chartreadNotice = nil
         chartreadLog.removeAll()
 
         // Optional: reset rows when starting a fresh first pass.
@@ -228,7 +228,10 @@ final class MeasurementWorkflowViewModel {
 
         case .exit(let code):
             if code != 0 {
-                lastError = "chartread exited with code \(code)"
+                chartreadNotice = Notice(
+                    kind: .error,
+                    text: "chartread exited with code \(code)"
+                )
             }
 
         case .completed(let canonicalURL):
@@ -236,7 +239,7 @@ final class MeasurementWorkflowViewModel {
             completePass(canonicalURL: canonicalURL)
 
         case .failed(let error):
-            lastError = error.localizedDescription
+            chartreadNotice = Notice(kind: .error, text: error.localizedDescription)
             chartreadState = .error
             isChartreadRunning = false
         }
@@ -382,7 +385,10 @@ final class MeasurementWorkflowViewModel {
             discoverPassSnapshots()
             wizard.refreshGating()
         } catch {
-            lastError = "Could not snapshot pass: \(error.localizedDescription)"
+            chartreadNotice = Notice(
+                kind: .error,
+                text: "Could not snapshot pass: \(error.localizedDescription)"
+            )
         }
     }
 
@@ -398,33 +404,32 @@ final class MeasurementWorkflowViewModel {
 
     func finishAndAverage() {
         guard !isFinishing, let cwd = workingDirectory, !passSnapshots.isEmpty else { return }
-        isFinishing = true
         finishNotice = nil
-        finishNoticeIsError = false
 
         Task { @MainActor [weak self] in
             guard let self else { return }
             do {
-                let canonical: URL
+                // No log reset: prior chartread output must be preserved.
+                let canonical = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.isFinishing = $0 },
+                    resetLog: {},
+                    onLog: { self.chartreadLog.append(contentsOf: $0) }
+                ) { onLog in
                     if self.passSnapshots.count == 1, let pass = self.passSnapshots.first {
-                    canonical = try MeasurementArtefacts.promotePass(
+                        return try MeasurementArtefacts.promotePass(
                             pass: pass,
                             basename: self.basename,
                             cwd: cwd
                         )
-                } else {
+                    }
                     let config = AverageConfig(
                         workingDirectory: cwd,
                         basename: self.basename,
                         passFiles: self.passSnapshots
                     )
-                    canonical = try await self.environment.runner.runAverage(
+                    return try await self.environment.runner.runAverage(
                         config: config,
-                        onLogBatch: { [weak self] batch in
-                            Task { @MainActor [weak self] in
-                                self?.chartreadLog.append(contentsOf: batch)
-                            }
-                        }
+                        onLogBatch: onLog
                     )
                 }
                 self.discoverPassSnapshots()
@@ -432,7 +437,11 @@ final class MeasurementWorkflowViewModel {
                 if self.wizard.isUnlocked(.buildProfile) {
                     self.wizard.go(to: .buildProfile)
                 } else {
-                    self.finishNotice = "Finished: \(canonical.lastPathComponent) ready."
+                    self.finishNotice = Notice(
+                        kind: .info,
+                        text: "Finished: \(canonical.lastPathComponent) ready.",
+                        autoHideAfter: nil
+                    )
                 }
             } catch {
                 // Fallback to pass 1 promotion if averaging failed.
@@ -445,18 +454,26 @@ final class MeasurementWorkflowViewModel {
                         )
                         self.discoverPassSnapshots()
                         self.wizard.refreshGating()
-                        self.finishNotice = "Averaging failed — promoted first pass."
-                        self.finishNoticeIsError = true
+                        self.finishNotice = Notice(
+                            kind: .error,
+                            text: "Averaging failed — promoted first pass.",
+                            autoHideAfter: nil
+                        )
                     } catch {
-                        self.finishNotice = "Finish failed: \(error.localizedDescription)"
-                        self.finishNoticeIsError = true
+                        self.finishNotice = Notice(
+                            kind: .error,
+                            text: "Finish failed: \(error.localizedDescription)",
+                            autoHideAfter: nil
+                        )
                     }
                 } else {
-                    self.finishNotice = "Finish failed: \(error.localizedDescription)"
-                    self.finishNoticeIsError = true
-                }
-            }
-            self.isFinishing = false
+                    self.finishNotice = Notice(
+                        kind: .error,
+                        text: "Finish failed: \(error.localizedDescription)",
+                        autoHideAfter: nil
+                    )
+                }
+            }
         }
     }
 }

Sources/ICCery/NoticeBanner.swift

@@ -21,6 +21,14 @@ struct Notice: Identifiable, Equatable {
             case .error:   return .red
             }
         }
+
+        var accessibilityValue: String {
+            switch self {
+            case .info:    return "info"
+            case .warning: return "warning"
+            case .error:   return "error"
+            }
+        }
     }
 
     let id = UUID()

Sources/ICCery/Print/PrintSessionViewModel.swift

@@ -0,0 +1,181 @@
+import Foundation
+import Observation
+import ICCeryCore
+
+/// CUPS queue selection, bound print panel, and `lp` spool (issues 12–15, 17 / #85).
+@MainActor
+@Observable
+final class PrintSessionViewModel {
+    let wizard: WizardViewModel
+    let environment: AppEnvironment
+
+    var printers: [Printer] = []
+    var selectedPrinter = ""
+    var printerCaps = PrinterCapabilities()
+    var selectedTray: Int?
+    var selectedMediaType: String?
+    var printOrientation = "portrait"
+    var capturedCupsOptions: [String: String] = [:]
+    var printNotice: Notice?
+    var isPrinting = false
+    private var printTask: Task<Void, Never>?
+
+    init(wizard: WizardViewModel, environment: AppEnvironment) {
+        self.wizard = wizard
+        self.environment = environment
+    }
+
+    func refreshPrinters() {
+        let cups = environment.cupsService
+        Task { @MainActor in
+            do {
+                let list = try await cups.listPrinters()
+                printers = list
+                if !list.contains(where: { $0.name == selectedPrinter }) {
+                    selectedPrinter = list.first { $0.isDefault }?.name
+                        ?? list.first?.name ?? ""
+                }
+                await reloadSelectedCapabilities()
+            } catch {
+                printNotice = Notice(
+                    kind: .error,
+                    text: "Could not list printers: \(error.localizedDescription)"
+                )
+            }
+        }
+    }
+
+    func reloadSelectedCapabilities() async {
+        guard !selectedPrinter.isEmpty else {
+            printerCaps = PrinterCapabilities()
+            return
+        }
+        do {
+            printerCaps = try await environment.cupsService
+                .capabilities(for: selectedPrinter)
+            if selectedMediaType == nil {
+                selectedMediaType = printerCaps.mediaTypes.first?.id
+            }
+            if selectedTray == nil {
+                selectedTray = printerCaps.trays.first?.id
+            }
+        } catch {
+            printerCaps = PrinterCapabilities()
+        }
+    }
+
+    func openPrinterPreferences() {
+        guard !selectedPrinter.isEmpty else { return }
+        let queue = selectedPrinter
+        let displayName = printers.first { $0.name == queue }?.displayName
+        let cups = environment.cupsService
+        Task { @MainActor in
+            do {
+                guard let result = try await PrintPanelService()
+                    .showProperties(
+                        queue: queue, displayName: displayName,
+                        cupsService: cups)
+                else {
+                    printNotice = Notice(
+                        kind: .info,
+                        text: "Printer properties dialog cancelled.",
+                        autoHideAfter: nil
+                    )
+                    return
+                }
+                if let selected = result.selectedPrinter,
+                   printers.contains(where: { $0.name == selected }),
+                   selected != queue {
+                    selectedPrinter = selected
+                    await reloadSelectedCapabilities()
+                }
+                if let captured = result.options.cupsOptions {
+                    capturedCupsOptions[selectedPrinter] = captured
+                }
+                if let media = result.options.mediaType {
+                    selectedMediaType = media
+                }
+                printNotice = Notice(
+                    kind: .info,
+                    text: "Settings captured for \(selectedPrinter).",
+                    autoHideAfter: nil
+                )
+            } catch {
+                printNotice = Notice(kind: .error, text: error.localizedDescription)
+            }
+        }
+    }
+
+    func printAllPages(from result: PrinttargResult, pageSize: PageSize) {
+        guard !isPrinting else { return }
+        isPrinting = true
+        let task = Task { @MainActor [weak self] in
+            guard let self else { return }
+            defer { self.printTask = nil }
+            var printed = 0
+            for page in result.pages {
+                do {
+                    try await spool(page, index: page.index, pageSize: pageSize)
+                    printed += 1
+                } catch {
+                    printNotice = Notice(
+                        kind: .error,
+                        text: "Print failed on \(page.page.filename): "
+                            + error.localizedDescription
+                    )
+                    isPrinting = false
+                    return
+                }
+            }
+            printNotice = Notice(
+                kind: .info,
+                text: "Sent \(printed) page(s) to \(selectedPrinter).",
+                autoHideAfter: nil
+            )
+            isPrinting = false
+        }
+        printTask = task
+    }
+
+    func printPage(_ page: GalleryPage, pageSize: PageSize) {
+        guard !isPrinting else { return }
+        isPrinting = true
+        let task = Task { @MainActor [weak self] in
+            guard let self else { return }
+            defer { self.printTask = nil }
+            do {
+                try await spool(page, index: page.index, pageSize: pageSize)
+                printNotice = Notice(
+                    kind: .info,
+                    text: "Sent \(page.page.filename) to \(selectedPrinter).",
+                    autoHideAfter: nil
+                )
+            } catch {
+                printNotice = Notice(
+                    kind: .error,
+                    text: "Print failed: \(error.localizedDescription)"
+                )
+            }
+            isPrinting = false
+        }
+        printTask = task
+    }
+
+    private func spool(_ page: GalleryPage, index: Int, pageSize: PageSize) async throws {
+        guard !selectedPrinter.isEmpty else {
+            throw CupsError.noPrinterSelected
+        }
+        let options = PrintOptions(
+            orientation: printOrientation,
+            paperSize: pageSize == .custom ? nil : pageSize.rawValue,
+            mediaType: selectedMediaType,
+            ppdUncorrectedPassthrough: true,
+            cupsOptions: capturedCupsOptions[selectedPrinter])
+        try await environment.cupsService.printTarget(
+            queue: selectedPrinter,
+            tiffPath: page.fileURL.path,
+            options: options,
+            page: index)
+        wizard.printerName = selectedPrinter
+    }
+}

Sources/ICCery/ProcessLogView.swift

@@ -0,0 +1,27 @@
+import SwiftUI
+
+/// Shared monospaced process-log disclosure used by Stage 1 and Stage 2.
+struct ProcessLogView: View {
+    let lines: [String]
+    var minHeight: CGFloat = 120
+    var maxHeight: CGFloat = 200
+    var containerId: String
+    var logId: String
+
+    var body: some View {
+        DisclosureGroup("Process log") {
+            ScrollView {
+                Text(lines.joined(separator: "\n"))
+                    .font(.system(.caption, design: .monospaced))
+                    .foregroundStyle(Theme.text)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                    .textSelection(.enabled)
+            }
+            .frame(minHeight: minHeight, maxHeight: maxHeight)
+            .accessibilityIdentifier(logId)
+        }
+        .foregroundStyle(Theme.text)
+        .accessibilityElement(children: .contain)
+        .accessibilityIdentifier(containerId)
+    }
+}

Sources/ICCery/ProcessRunSupport.swift

@@ -0,0 +1,29 @@
+import Foundation
+
+/// Shared hop for coalesced Argyll log batches (issue #80).
+/// The runner invokes the sink off the main actor; this is the single hop back.
+enum ProcessRunSupport {
+    static func logSink(
+        _ apply: @escaping @MainActor @Sendable ([String]) -> Void
+    ) -> @Sendable ([String]) -> Void {
+        { batch in
+            Task { @MainActor in apply(batch) }
+        }
+    }
+
+    /// Wraps a runner call with running/log bookkeeping.
+    /// `work` stays on the main actor so `T` does not cross isolation
+    /// (Swift 6: non-Sendable generic return from a nonisolated async fn).
+    @MainActor
+    static func runLogged<T>(
+        setRunning: (Bool) -> Void,
+        resetLog: () -> Void,
+        onLog: @escaping @MainActor @Sendable ([String]) -> Void,
+        work: @MainActor @escaping (@escaping @Sendable ([String]) -> Void) async throws -> T
+    ) async throws -> T {
+        setRunning(true)
+        resetLog()
+        defer { setRunning(false) }
+        return try await work(logSink(onLog))
+    }
+}

Sources/ICCery/ProfileWorkflowViewModel.swift

@@ -3,25 +3,6 @@ import Observation
 import SwiftUI
 import ICCeryCore
 
-/// User-facing FWA selection for the Stage 4 form.
-enum ColprofFwaSelection: String, CaseIterable, Sendable, Equatable {
-    case none = "none"
-    case empty = ""
-    case D50 = "D50"
-    case D65 = "D65"
-    case custom = "custom"
-
-    var displayName: String {
-        switch self {
-        case .none: return "None"
-        case .empty: return "Bare (-f)"
-        case .D50: return "D50"
-        case .D65: return "D65"
-        case .custom: return "Custom .sp"
-        }
-    }
-}
-
 /// Stage 4/5 workflow: build a profile, verify it, track drift, and install.
 @MainActor
 @Observable
@@ -50,7 +31,6 @@ final class ProfileWorkflowViewModel {
     var isColprofRunning = false
     var colprofLog: [String] = []
     var colprofProgress: String?
-    var lastError: String?
     var createdProfileURL: URL?
     /// Path to the `.gam` gamut mesh extracted post-`colprof` (issue #28).
     var createdGamutURL: URL?
@@ -110,39 +90,31 @@ final class ProfileWorkflowViewModel {
     }
 
     var fwaValue: String? {
-        switch fwaSelection {
-        case .none: return nil
-        case .empty: return ""
-        case .D50: return "D50"
-        case .D65: return "D65"
-        case .custom: return fwaCustomPath
-        }
+        fwaSelection.presetValue(customPath: fwaCustomPath)
     }
 
     // MARK: - Preset application
 
     func applyPreset(_ preset: ProfilingPreset?) {
         guard let preset else { return }
-        algorithm = preset.colprofAlgorithm ?? "l"
-        quality = preset.colprofQuality ?? "m"
-        intent = preset.colprofIntent ?? ""
-
-        if let fwa = preset.colprofFwa {
-            switch fwa.lowercased() {
-            case "none": fwaSelection = .none
-            case "": fwaSelection = .empty
-            case "d50": fwaSelection = .D50
-            case "d65": fwaSelection = .D65
-            default:
-                fwaSelection = .custom
-                fwaCustomPath = fwa
-            }
-        }
-
-        illuminant = preset.colprofIlluminant ?? ""
-        observer = preset.colprofObserver ?? ""
-        inputViewingCond = preset.colprofInputViewingCond ?? ""
-        outputViewingCond = preset.colprofOutputViewingCond ?? ""
+        let config = ColprofConfig(
+            preset: preset,
+            basename: wizard.basename,
+            workingDirectory: wizard.effectiveWorkingDirectory
+        )
+        algorithm = config.algorithm
+        quality = config.quality
+        intent = config.intent ?? ""
+        fwaSelection = ColprofFwaSelection(presetValue: config.fwa)
+        fwaCustomPath = fwaSelection == .custom ? (config.fwa ?? "") : ""
+        illuminant = config.illuminant ?? ""
+        observer = config.observer ?? ""
+        inputViewingCond = config.inputViewingCond ?? ""
+        outputViewingCond = config.outputViewingCond ?? ""
+        profileDescription = ""
+        copyright = ""
+        applyCalibration = preset.applyCalibration == true
+        calibrationFile = preset.calibrationFile ?? ""
     }
 
     /// Stage 4 form values for saving into a custom preset.
@@ -192,29 +164,25 @@ final class ProfileWorkflowViewModel {
         guard canCreateProfile, let _ = wizard.effectiveWorkingDirectory else { return }
         let config = buildColprofConfig()
 
-        isColprofRunning = true
-        colprofLog = []
         colprofProgress = nil
-        lastError = nil
         createdProfileURL = nil
         createdGamutURL = nil
 
         let runner = environment.runner
         Task { @MainActor [weak self] in
             guard let self else { return }
-            defer { self.isColprofRunning = false }
-
             do {
-                let url = try await runner.runColprof(config: config) { [weak self] batch in
-                    Task { @MainActor [weak self] in
-                        guard let self else { return }
+                let outcome = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.isColprofRunning = $0 },
+                    resetLog: { self.colprofLog = [] },
+                    onLog: { batch in
                         self.colprofLog.append(contentsOf: batch)
                         if let last = batch.last {
-                            let progress = ColprofProgressClassifier.classify(line: last)
-                            self.updateProgress(progress)
-                        }
+                            self.updateProgress(ColprofProgressClassifier.classify(line: last))
                         }
                     }
+                ) { onLog in
+                    let url = try await runner.runColprof(config: config, onLogBatch: onLog)
 
                     var finalProfileURL = url
 
@@ -229,28 +197,26 @@ final class ProfileWorkflowViewModel {
                     }
 
                     // Gamut extraction is best-effort for Stage 5 / M6 viewer.
+                    var gamutURL: URL?
                     do {
                         let gamConfig = IccgamutConfig(profileURL: finalProfileURL)
-                    let gamURL = try await runner.runIccgamut(config: gamConfig) { [weak self] batch in
-                        Task { @MainActor [weak self] in
-                            self?.colprofLog.append(contentsOf: batch)
-                        }
-                    }
-                    self.createdGamutURL = gamURL
-                    self.colprofLog.append("Gamut mesh extracted: \(gamURL.lastPathComponent)")
+                        let url = try await runner.runIccgamut(config: gamConfig, onLogBatch: onLog)
+                        gamutURL = url
+                        self.colprofLog.append("Gamut mesh extracted: \(url.lastPathComponent)")
                     } catch {
                         self.wizard.showNotice(
                             "Gamut extraction skipped: \(error.localizedDescription)",
                             kind: .info
                         )
                     }
-
-                self.createdProfileURL = finalProfileURL
+                    return (profileURL: finalProfileURL, gamutURL: gamutURL)
+                }
+                self.createdProfileURL = outcome.profileURL
+                self.createdGamutURL = outcome.gamutURL
                 self.wizard.refreshGating()
-                self.wizard.showNotice("Profile created: \(finalProfileURL.lastPathComponent)")
+                self.wizard.showNotice("Profile created: \(outcome.profileURL.lastPathComponent)")
                 self.wizard.go(to: .verifyInstall)
             } catch {
-                self.lastError = error.localizedDescription
                 self.wizard.showNotice(
                     "Profile creation failed: \(error.localizedDescription)",
                     kind: .error
@@ -317,25 +283,28 @@ final class ProfileWorkflowViewModel {
         let ti3URL = ArtefactProbe.artefact(wizard.basename, "ti3", cwd)
         let config = ProfcheckConfig(ti3URL: ti3URL, iccURL: profileURL)
 
-        isProfcheckRunning = true
         profcheckReport = nil
         profcheckWarning = nil
 
         let runner = environment.runner
         Task { @MainActor [weak self] in
             guard let self else { return }
-            defer { self.isProfcheckRunning = false }
-
             do {
-                let report = try await runner.runProfcheck(config: config) { [weak self] batch in
-                    Task { @MainActor [weak self] in
-                        self?.colprofLog.append(contentsOf: batch)
-                    }
-                }
-                self.profcheckReport = report
+                let outcome = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.isProfcheckRunning = $0 },
+                    resetLog: {},
+                    onLog: { self.colprofLog.append(contentsOf: $0) }
+                ) { onLog in
+                    let report = try await runner.runProfcheck(config: config, onLogBatch: onLog)
+                    var history: [VerificationRecord]?
                     if let record = self.makeVerificationRecord(from: report) {
-                    let updated = try await self.environment.historyStore.append(record)
-                    self.verificationHistory = updated
+                        history = try await self.environment.historyStore.append(record)
+                    }
+                    return (report: report, history: history)
+                }
+                self.profcheckReport = outcome.report
+                if let history = outcome.history {
+                    self.verificationHistory = history
                     self.driftAlert = DriftAlert.compute(from: self.filteredHistory)
                 }
             } catch let error as ArgyllRunnerError where error == .profcheckUnparseable {

Sources/ICCery/RootView.swift

@@ -83,9 +83,9 @@ private struct WizardStageContent: View {
         case .verifyInstall:
             Stage5View(model: workflow.profile)
         case .calibrate:
-            CalibrationView(model: workflow.calibration)
+            CalibrationView(model: workflow.calibration, wizard: workflow.wizard)
         @unknown default:
-            StagePlaceholderView(stage: model.stage)
+            Stage1View(workflow: workflow)
         }
     }
 }

Sources/ICCery/Stage1View.swift

@@ -238,19 +238,12 @@ struct Stage1View: View {
     }
 
     private var logSection: some View {
-        DisclosureGroup("Process log") {
-            ScrollView {
-                Text(workflow.targenLog.joined(separator: "\n"))
-                    .font(.system(.caption, design: .monospaced))
-                    .foregroundStyle(Theme.text)
-                    .frame(maxWidth: .infinity, alignment: .leading)
-                    .textSelection(.enabled)
-            }
-            .frame(minHeight: 120, maxHeight: 200)
-            .accessibilityIdentifier("targenLog")
-        }
-        .foregroundStyle(Theme.text)
-        .accessibilityElement(children: .contain)
-        .accessibilityIdentifier("targenLogContainer")
+        ProcessLogView(
+            lines: workflow.targenLog,
+            minHeight: 120,
+            maxHeight: 200,
+            containerId: "targenLogContainer",
+            logId: "targenLog"
+        )
     }
 }

Sources/ICCery/Stage2View.swift

@@ -171,20 +171,13 @@ struct Stage2View: View {
     }
 
     private var logSection: some View {
-        DisclosureGroup("Process log") {
-            ScrollView {
-                Text(workflow.printtargLog.joined(separator: "\n"))
-                    .font(.system(.caption, design: .monospaced))
-                    .foregroundStyle(Theme.text)
-                    .frame(maxWidth: .infinity, alignment: .leading)
-                    .textSelection(.enabled)
-            }
-            .frame(minHeight: 100, maxHeight: 180)
-            .accessibilityIdentifier("printtargLog")
-        }
-        .foregroundStyle(Theme.text)
-        .accessibilityElement(children: .contain)
-        .accessibilityIdentifier("printtargLogContainer")
+        ProcessLogView(
+            lines: workflow.printtargLog,
+            minHeight: 100,
+            maxHeight: 180,
+            containerId: "printtargLogContainer",
+            logId: "printtargLog"
+        )
     }
 
     // MARK: - TIFF gallery (#tiffGallery) — host-side PNG only (#58)
@@ -219,18 +212,19 @@ struct Stage2View: View {
         VStack(alignment: .leading, spacing: 10) {
             HStack(spacing: 12) {
                 Text("Print").font(.headline).foregroundStyle(Theme.text)
-                if let notice = workflow.printNotice {
-                    Image(systemName: workflow.printNoticeIsError
+                if let notice = workflow.print.printNotice {
+                    Image(systemName: notice.kind == .error
                           ? "xmark.circle.fill" : "info.circle.fill")
-                        .foregroundStyle(workflow.printNoticeIsError
+                        .foregroundStyle(notice.kind == .error
                                          ? .red : .blue)
                         .accessibilityIdentifier("printNotificationIcon")
-                    Text(notice)
+                        .accessibilityValue(notice.kind.accessibilityValue)
+                    Text(notice.text)
                         .font(.caption)
-                        .foregroundStyle(workflow.printNoticeIsError
+                        .foregroundStyle(notice.kind == .error
                                          ? .red : .secondary)
                         .accessibilityIdentifier("printNotificationText")
-                        .accessibilityValue(notice)
+                        .accessibilityValue(notice.text)
                 }
                 Spacer()
             }
@@ -238,21 +232,21 @@ struct Stage2View: View {
 
             // Printer row: select + status + refresh + Preferences.
             HStack(spacing: 10) {
-                Picker("Printer", selection: $workflow.selectedPrinter) {
-                    ForEach(workflow.printers, id: \.name) { printer in
+                Picker("Printer", selection: $workflow.print.selectedPrinter) {
+                    ForEach(workflow.print.printers, id: \.name) { printer in
                         Text(printer.displayName ?? printer.name)
                             .tag(printer.name)
                     }
                 }
                 .frame(maxWidth: 320)
                 .accessibilityIdentifier("printerSelect")
-                .onChange(of: workflow.selectedPrinter) { _, _ in
-                    workflow.selectedTray = nil
-                    workflow.selectedMediaType = nil
-                    Task { @MainActor in await workflow.reloadSelectedCapabilities() }
+                .onChange(of: workflow.print.selectedPrinter) { _, _ in
+                    workflow.print.selectedTray = nil
+                    workflow.print.selectedMediaType = nil
+                    Task { @MainActor in await workflow.print.reloadSelectedCapabilities() }
                 }
-                if let selected = workflow.printers
-                    .first(where: { $0.name == workflow.selectedPrinter }) {
+                if let selected = workflow.print.printers
+                    .first(where: { $0.name == workflow.print.selectedPrinter }) {
                     Text(selected.status.rawValue)
                         .font(.caption).foregroundStyle(.secondary)
                         .padding(.horizontal, 8).padding(.vertical, 3)
@@ -260,33 +254,33 @@ struct Stage2View: View {
                         .clipShape(Capsule())
                         .accessibilityIdentifier("printerStatusBadge")
                 }
-                Button(action: workflow.refreshPrinters) {
+                Button(action: workflow.print.refreshPrinters) {
                     Image(systemName: "arrow.clockwise")
                 }
                 .help("Refresh printer list")
                 .accessibilityIdentifier("btnRefreshPrinters")
-                Button(action: workflow.openPrinterPreferences) {
+                Button(action: workflow.print.openPrinterPreferences) {
                     Image(systemName: "gearshape")
                 }
                 .help("Printer properties — bound NSPrintPanel")
-                .disabled(workflow.selectedPrinter.isEmpty)
+                .disabled(workflow.print.selectedPrinter.isEmpty)
                 .accessibilityIdentifier("btnPrinterProperties")
             }
 
             // Tray / media / orientation — from queue capabilities.
             HStack(spacing: 14) {
-                if !workflow.printerCaps.trays.isEmpty {
-                    Picker("Tray", selection: $workflow.selectedTray) {
-                        ForEach(workflow.printerCaps.trays, id: \.id) {
+                if !workflow.print.printerCaps.trays.isEmpty {
+                    Picker("Tray", selection: $workflow.print.selectedTray) {
+                        ForEach(workflow.print.printerCaps.trays, id: \.id) {
                             Text($0.name).tag(Optional($0.id))
                         }
                     }
                     .frame(maxWidth: 200)
                     .accessibilityIdentifier("printerTraySelect")
                 }
-                if !workflow.printerCaps.mediaTypes.isEmpty {
-                    Picker("Media", selection: $workflow.selectedMediaType) {
-                        ForEach(workflow.printerCaps.mediaTypes, id: \.id) {
+                if !workflow.print.printerCaps.mediaTypes.isEmpty {
+                    Picker("Media", selection: $workflow.print.selectedMediaType) {
+                        ForEach(workflow.print.printerCaps.mediaTypes, id: \.id) {
                             Text($0.name).tag(Optional($0.id))
                         }
                     }
@@ -296,27 +290,31 @@ struct Stage2View: View {
                     .accessibilityIdentifier("printerMediaTypeSelect")
                 }
                 HStack(spacing: 0) {
-                    Button("Portrait") { workflow.printOrientation = "portrait" }
+                    Button("Portrait") { workflow.print.printOrientation = "portrait" }
                         .buttonStyle(.bordered)
-                        .tint(workflow.printOrientation == "portrait" ? .accentColor : .gray)
+                        .tint(workflow.print.printOrientation == "portrait" ? .accentColor : .gray)
                         .accessibilityIdentifier("btnOrientPortrait")
-                    Button("Landscape") { workflow.printOrientation = "landscape" }
+                    Button("Landscape") { workflow.print.printOrientation = "landscape" }
                         .buttonStyle(.bordered)
-                        .tint(workflow.printOrientation == "landscape" ? .accentColor : .gray)
+                        .tint(workflow.print.printOrientation == "landscape" ? .accentColor : .gray)
                         .accessibilityIdentifier("btnOrientLandscape")
                 }
                 Spacer()
             }
 
             HStack(spacing: 8) {
-                Button(action: workflow.printAllPages) {
-                    Label(workflow.isPrinting ? "Printing…" : "Print All",
+                Button(action: {
+                    if let result = workflow.printtargResult {
+                        workflow.print.printAllPages(from: result, pageSize: workflow.pageSize)
+                    }
+                }) {
+                    Label(workflow.print.isPrinting ? "Printing…" : "Print All",
                           systemImage: "printer")
                 }
                 .controlSize(.large)
-                .disabled(workflow.isPrinting
+                .disabled(workflow.print.isPrinting
                           || workflow.printtargResult == nil
-                          || workflow.selectedPrinter.isEmpty)
+                          || workflow.print.selectedPrinter.isEmpty)
                 .accessibilityIdentifier("btnPrintAll")
                 Spacer()
                 Button("Advance to Stage 3") { workflow.advanceToStage3() }
@@ -333,8 +331,8 @@ struct Stage2View: View {
         .task(id: workflow.printtargResult?.pages.count) {
             // Auto-enumerate once a manifest exists and whenever it
             // changes (e.g. resume from .ti2).
-            if workflow.printers.isEmpty, workflow.printtargResult != nil {
-                workflow.refreshPrinters()
+            if workflow.print.printers.isEmpty, workflow.printtargResult != nil {
+                workflow.print.refreshPrinters()
             }
         }
     }
@@ -364,9 +362,9 @@ private struct GalleryPageView: View {
             Text("\(page.page.patches) patches · " +
                  "\(Int(page.page.widthMm))×\(Int(page.page.heightMm)) mm")
                 .font(.caption2).foregroundStyle(.secondary)
-            Button("Print") { workflow.printPage(page) }
-                .disabled(workflow.isPrinting
-                          || workflow.selectedPrinter.isEmpty)
+            Button("Print") { workflow.print.printPage(page, pageSize: workflow.pageSize) }
+                .disabled(workflow.print.isPrinting
+                          || workflow.print.selectedPrinter.isEmpty)
                 .accessibilityIdentifier("btnPrintPage-\(page.index)")
         }
         .padding(8)

Sources/ICCery/Stage3View.swift

@@ -164,28 +164,22 @@ struct Stage3View: View {
                     .foregroundStyle(Theme.accent)
             }
 
-            if let lastError = model.lastError {
-                Text(lastError)
+            if let notice = model.chartreadNotice {
+                Text(notice.text)
                     .font(.caption)
-                    .foregroundStyle(.red)
+                    .foregroundStyle(notice.kind.tint)
                     .accessibilityIdentifier("chartreadLastError")
-                    .accessibilityValue(lastError)
+                    .accessibilityValue(notice.text)
             }
 
             controlButtons
 
             if !model.chartreadLog.isEmpty {
-                DisclosureGroup("Log") {
-                    VStack(alignment: .leading) {
-                        ForEach(model.chartreadLog, id: \.self) { line in
-                            Text(line)
-                                .font(.system(.caption, design: .monospaced))
-                                .foregroundStyle(.secondary)
-                        }
-                    }
-                }
-                .foregroundStyle(Theme.text)
-                .accessibilityIdentifier("chartreadLogContainer")
+                ProcessLogView(
+                    lines: model.chartreadLog,
+                    containerId: "chartreadLogContainer",
+                    logId: "chartreadLog"
+                )
             }
         }
         .padding(16)
@@ -371,9 +365,11 @@ struct Stage3View: View {
                 }
 
                 if let notice = model.finishNotice {
-                    Text(notice)
+                    Text(notice.text)
                         .font(.caption)
-                        .foregroundStyle(model.finishNoticeIsError ? .red : .green)
+                        .foregroundStyle(notice.kind == .error ? .red : .green)
+                        .accessibilityIdentifier("chartreadFinishNotice")
+                        .accessibilityValue(notice.kind.accessibilityValue)
                 }
             }
             .padding(16)

Sources/ICCery/Stage4View.swift

@@ -166,27 +166,14 @@ struct Stage4View: View {
                 }
 
                 Spacer()
-
-                if let lastError = model.lastError {
-                    Text(lastError)
-                        .font(.caption)
-                        .foregroundStyle(.red)
-                        .accessibilityIdentifier("colprofLastError")
-                }
             }
 
             if !model.colprofLog.isEmpty {
-                DisclosureGroup("Log") {
-                    VStack(alignment: .leading) {
-                        ForEach(model.colprofLog, id: \.self) { line in
-                            Text(line)
-                                .font(.system(.caption, design: .monospaced))
-                                .foregroundStyle(.secondary)
-                        }
-                    }
-                }
-                .foregroundStyle(Theme.text)
-                .accessibilityIdentifier("colprofLogContainer")
+                ProcessLogView(
+                    lines: model.colprofLog,
+                    containerId: "colprofLogContainer",
+                    logId: "colprofLog"
+                )
             }
         }
         .padding(16)

Sources/ICCery/StagePlaceholderView.swift

@@ -1,24 +0,0 @@
-import SwiftUI
-import ICCeryCore
-
-/// Placeholder stage surface for M1. Real stage UIs arrive in M2–M5
-/// (issues #7–#31); Stage 0 lands in M6 (issue #29).
-struct StagePlaceholderView: View {
-    let stage: WizardStage
-
-    var body: some View {
-        VStack(spacing: 16) {
-            Image(systemName: stage.symbolName)
-                .font(.system(size: 44))
-                .foregroundStyle(Theme.accent)
-            Text(stage.title)
-                .font(.title2)
-                .foregroundStyle(Theme.text)
-            Text("This stage is not implemented yet — see the milestone plan.")
-                .font(.callout)
-                .foregroundStyle(.secondary)
-        }
-        .frame(maxWidth: .infinity, maxHeight: .infinity)
-        .background(Theme.background)
-    }
-}

Sources/ICCery/TargetWorkflowViewModel.swift

@@ -89,30 +89,6 @@ final class TargetWorkflowViewModel {
     /// Stage 3 (`#stage3LoadedTargetBanner` data).
     var resumedFromTi2 = false
 
-    // MARK: - Print panel (issue 17)
-
-    /// CUPS destinations from `lpstat` (#printerSelect).
-    var printers: [Printer] = []
-    /// Selected queue name.
-    var selectedPrinter = ""
-    /// Capabilities of the selected queue (#printerTraySelect /
-    /// #printerMediaTypeSelect / PageSize source).
-    var printerCaps = PrinterCapabilities()
-    var selectedTray: Int?
-    var selectedMediaType: String?
-    /// "portrait" | "landscape" (#btnOrientPortrait/#btnOrientLandscape).
-    var printOrientation = "portrait"
-    /// Per-queue captured `key=value` strings from Preferences — replayed
-    /// on `lp` (session-only, docs/11 §capturedCupsOptions).
-    var capturedCupsOptions: [String: String] = [:]
-    /// In-panel notice (#printNotification) — cancel → info, not error.
-    var printNotice: String?
-    var printNoticeIsError = false
-    var isPrinting = false
-    /// Strong reference to the active print task so the unstructured
-    /// `Task` is not dropped before it resumes.
-    private var printTask: Task<Void, Never>?
-
     // MARK: - Presets
 
     var presets: [ProfilingPreset] = []
@@ -130,6 +106,8 @@ final class TargetWorkflowViewModel {
     var profile: ProfileWorkflowViewModel
     /// Stage 0 calibration workflow.
     var calibration: CalibrationViewModel!
+    /// Stage 2 unmanaged print session.
+    var print: PrintSessionViewModel!
 
     init(environment: AppEnvironment = .live()) {
         self.environment = environment
@@ -142,6 +120,7 @@ final class TargetWorkflowViewModel {
             wizard: wizard,
             environment: environment
         )
+        self.print = PrintSessionViewModel(wizard: wizard, environment: environment)
         self.calibration = nil
         self.calibration = CalibrationViewModel(
             workflow: self,
@@ -227,16 +206,16 @@ final class TargetWorkflowViewModel {
     func generateTarget() {
         guard canGenerate, !targenRunning else { return }
         let config = buildTargenConfig()
-        targenRunning = true
-        targenLog = []
         resumedFromTi2 = false
         let runner = environment.runner
         Task { @MainActor in
             do {
-                let url = try await runner.runTargen(config: config) { [weak self] batch in
-                    Task { @MainActor [weak self] in
-                        self?.targenLog.append(contentsOf: batch)
-                    }
+                let url = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.targenRunning = $0 },
+                    resetLog: { self.targenLog = [] },
+                    onLog: { self.targenLog.append(contentsOf: $0) }
+                ) { onLog in
+                    try await runner.runTargen(config: config, onLogBatch: onLog)
                 }
                 wizard.setTarget(
                     basename: config.basename,
@@ -248,7 +227,6 @@ final class TargetWorkflowViewModel {
                 wizard.showNotice(
                     "targen failed: \(error.localizedDescription)", kind: .error)
             }
-            targenRunning = false
         }
     }
 
@@ -261,7 +239,12 @@ final class TargetWorkflowViewModel {
             ? UITestHooks.datasetImportURL
             : fileDialogs.selectDatasetFile()
         guard let url else { return }
+        importMeasurementDataset(from: url)
+    }
 
+    /// Test seam (issue #80): unit tests pass missing or malformed URLs
+    /// directly instead of mutating the global environment.
+    func importMeasurementDataset(from url: URL) {
         do {
             let dataset = try CGATSParser.parse(url: url)
             guard let directory = targetDirectory ?? wizard.effectiveWorkingDirectory else {
@@ -284,8 +267,6 @@ final class TargetWorkflowViewModel {
             } else {
                 wizard.showNotice("Imported dataset is not ready for profiling.", kind: .warning)
             }
-        } catch let error as CGATSParseError {
-            wizard.showNotice("Import failed: \(error.localizedDescription)", kind: .error)
         } catch {
             wizard.showNotice("Import failed: \(error.localizedDescription)", kind: .error)
         }
@@ -360,28 +341,25 @@ final class TargetWorkflowViewModel {
     func createLayout() {
         guard wizard.isUnlocked(.layOutPrint), !printtargRunning else { return }
         let config = buildPrinttargConfig()
-        printtargRunning = true
-        printtargLog = []
         printtargResult = nil
         let runner = environment.runner
         Task { @MainActor in
             do {
-                let result = try await runner.runPrinttarg(config: config) { [weak self] batch in
-                    Task { @MainActor [weak self] in
-                        self?.printtargLog.append(contentsOf: batch)
-                    }
+                let result = try await ProcessRunSupport.runLogged(
+                    setRunning: { self.printtargRunning = $0 },
+                    resetLog: { self.printtargLog = [] },
+                    onLog: { self.printtargLog.append(contentsOf: $0) }
+                ) { onLog in
+                    try await runner.runPrinttarg(config: config, onLogBatch: onLog)
                 }
                 printtargResult = result
                 wizard.refreshGating()
                 wizard.showNotice(
                     "Layout created — \(result.manifest.pages.count) page(s) ready.")
             } catch {
-                // Stay on Stage 2: non-zero exit, malformed manifest, or
-                // missing .ti2 must never advance the wizard (#156).
                 wizard.showNotice(
                     "printtarg failed: \(error.localizedDescription)", kind: .error)
             }
-            printtargRunning = false
         }
     }
 
@@ -391,160 +369,6 @@ final class TargetWorkflowViewModel {
         wizard.go(to: .measure)
     }
 
-    // MARK: - Print panel actions (issue 17)
-
-    /// `#btnRefreshPrinters` — re-enumerate CUPS destinations and load
-    /// capabilities for the selection. Auto-runs when the panel first
-    /// appears with a manifest.
-    func refreshPrinters() {
-        let cups = environment.cupsService
-        Task { @MainActor in
-            do {
-                let list = try await cups.listPrinters()
-                printers = list
-                if !list.contains(where: { $0.name == selectedPrinter }) {
-                    selectedPrinter = list.first { $0.isDefault }?.name
-                        ?? list.first?.name ?? ""
-                }
-                await reloadSelectedCapabilities()
-            } catch {
-                printNotice = "Could not list printers: \(error.localizedDescription)"
-                printNoticeIsError = true
-            }
-        }
-    }
-
-    /// Capabilities for `selectedPrinter` — trays / media / sizes feed
-    /// the selects.
-    func reloadSelectedCapabilities() async {
-        guard !selectedPrinter.isEmpty else {
-            printerCaps = PrinterCapabilities()
-            return
-        }
-        do {
-            printerCaps = try await environment.cupsService
-                .capabilities(for: selectedPrinter)
-            // Default selections only when the captured options didn't
-            // already pin them (Preferences round-trip wins).
-            if selectedMediaType == nil {
-                selectedMediaType = printerCaps.mediaTypes.first?.id
-            }
-            if selectedTray == nil {
-                selectedTray = printerCaps.trays.first?.id
-            }
-        } catch {
-            printerCaps = PrinterCapabilities()
-        }
-    }
-
-    /// `#btnPrinterProperties` — bound NSPrintPanel ("Use Settings").
-    /// Cancel → info notice, never an error, cache untouched. On OK the
-    /// captured options are stored per-queue; a panel-side queue switch
-    /// updates `printerSelect` when the returned CUPS id is in the list.
-    func openPrinterPreferences() {
-        guard !selectedPrinter.isEmpty else { return }
-        let queue = selectedPrinter
-        let displayName = printers.first { $0.name == queue }?.displayName
-        let cups = environment.cupsService
-        Task { @MainActor in
-            do {
-                guard let result = try await PrintPanelService()
-                    .showProperties(
-                        queue: queue, displayName: displayName,
-                        cupsService: cups)
-                else {
-                    printNotice = "Printer properties dialog cancelled."
-                    printNoticeIsError = false
-                    return
-                }
-                if let selected = result.selectedPrinter,
-                   printers.contains(where: { $0.name == selected }),
-                   selected != queue {
-                    selectedPrinter = selected
-                    await reloadSelectedCapabilities()
-                }
-                if let captured = result.options.cupsOptions {
-                    capturedCupsOptions[selectedPrinter] = captured
-                }
-                if let media = result.options.mediaType {
-                    selectedMediaType = media
-                }
-                printNotice = "Settings captured for \(selectedPrinter)."
-                printNoticeIsError = false
-            } catch {
-                printNotice = error.localizedDescription
-                printNoticeIsError = true
-            }
-        }
-    }
-
-    /// `#btnPrintAll` — spool every gallery TIFF, sequentially. Stops on
-    /// the first failure so the user sees which page failed.
-    func printAllPages() {
-        guard let result = printtargResult, !isPrinting else { return }
-        isPrinting = true
-        let task = Task { @MainActor [weak self] in
-            guard let self else { return }
-            defer { self.printTask = nil }
-            var printed = 0
-            for page in result.pages {
-                do {
-                    try await spool(page, index: page.index)
-                    printed += 1
-                } catch {
-                    printNotice = "Print failed on \(page.page.filename): "
-                        + error.localizedDescription
-                    printNoticeIsError = true
-                    isPrinting = false
-                    return
-                }
-            }
-            printNotice = "Sent \(printed) page(s) to \(selectedPrinter)."
-            printNoticeIsError = false
-            isPrinting = false
-        }
-        printTask = task
-    }
-
-    /// `#btnPrintPage-N` — one TIFF.
-    func printPage(_ page: GalleryPage) {
-        guard !isPrinting else { return }
-        isPrinting = true
-        let task = Task { @MainActor [weak self] in
-            guard let self else { return }
-            defer { self.printTask = nil }
-            do {
-                try await spool(page, index: page.index)
-                printNotice = "Sent \(page.page.filename) to \(selectedPrinter)."
-                printNoticeIsError = false
-            } catch {
-                printNotice = "Print failed: \(error.localizedDescription)"
-                printNoticeIsError = true
-            }
-            isPrinting = false
-        }
-        printTask = task
-    }
-
-    private func spool(_ page: GalleryPage, index: Int) async throws {
-        guard !selectedPrinter.isEmpty else {
-            throw CupsError.noPrinterSelected
-        }
-        let options = PrintOptions(
-            orientation: printOrientation,
-            paperSize: pageSize == .custom ? nil : pageSize.rawValue,
-            mediaType: selectedMediaType,
-            ppdUncorrectedPassthrough: true,
-            cupsOptions: capturedCupsOptions[selectedPrinter])
-        try await environment.cupsService.printTarget(
-            queue: selectedPrinter,
-            tiffPath: page.fileURL.path,
-            options: options,
-            page: index)
-        // For Stage 5 history (#95): record which queue printed.
-        wizard.printerName = selectedPrinter
-    }
-
     // MARK: - Presets
 
     func reloadPresets() {
@@ -554,55 +378,61 @@ final class TargetWorkflowViewModel {
     /// Applies every Stage 1/2 field of the preset to the live form
     /// (bidirectional — the draft preset's dpi=150 must be visible).
     func applyPreset(_ preset: ProfilingPreset) {
-        colourSpace = preset.colourSpace == "cmyk" ? .cmyk : .rgb
-        patchPreset = PatchCountPreset(rawValue: "\(preset.patchCount)") ?? .custom
-        customPatchCount = preset.patchCount
-        whitePatches = preset.whitePatches
-        blackPatches = preset.blackPatches
-        greySteps = preset.greySteps ?? 5; greyStepsEnabled = preset.greySteps != nil
-        singleChannelSteps = preset.singleChannelSteps ?? 5
-        singleChannelEnabled = preset.singleChannelSteps != nil
-        neutralSteps = preset.neutralSteps ?? 3
-        neutralStepsEnabled = preset.neutralSteps != nil
-        neutralConcentration = preset.neutralConcentration ?? 0.50
-        neutralConcEnabled = preset.neutralConcentration != nil
-        preconditioningProfile = preset.preconditioningProfile
-        highQuality = preset.ofpsHighQuality == true
-        adaptation = preset.ofpsAdaptation ?? 0.10
-        adaptationEnabled = preset.ofpsAdaptation != nil
-        algorithm = preset.fullSpreadAlgorithm
-            .flatMap { FullSpreadAlgorithm(presetValue: $0) } ?? .ofps
-        totalInkLimit = preset.totalInkLimit ?? 320
-        inkLimitEnabled = preset.totalInkLimit != nil
-        darkEmphasis = preset.darkEmphasis ?? 1.0
-        darkEmphasisEnabled = preset.darkEmphasis != nil
-        devicePower = preset.devicePower ?? 1.0
-        devicePowerEnabled = preset.devicePower != nil
-
-        instrument = PrintInstrument(rawValue: preset.instrument) ?? .i1
-        if let size = PageSize(rawValue: preset.pageSize) {
-            pageSize = size
-        } else if let (w, h) = Self.parseCustomPage(preset.pageSize) {
-            pageSize = .custom; customPageW = w; customPageH = h
-        } else {
-            pageSize = .a4
-        }
-        bitDepth = preset.bitDepth == 16 ? .sixteen : .eight
-        tiffDpi = preset.dpi
-        if preset.noRandomize == true {
-            layoutOrder = .raster
-        } else if (preset.randomSeed ?? 1) == 1 {
-            layoutOrder = .deterministic
-        } else {
-            layoutOrder = .customSeed
-        }
-        customSeed = preset.randomSeed ?? 1
-
+        let targen = TargenConfig(preset: preset, basename: targetBasename, workingDirectory: targetDirectory)
+        applyTargenForm(targen)
+        // Stage 4 state (incl. calibration) is applied before Stage 2 so
+        // the layout config receives the preset's calibration path, not
+        // stale live state (#82).
         profile.applyPreset(preset)
-
+        let printtarg = PrinttargConfig(
+            preset: preset,
+            basename: wizard.basename,
+            workingDirectory: wizard.effectiveWorkingDirectory,
+            calibrationFile: profile.applyCalibration && !profile.calibrationFile.isEmpty
+                ? profile.calibrationFile : nil
+        )
+        applyPrinttargForm(printtarg)
         selectedPresetID = preset.id
     }
 
+    private func applyTargenForm(_ config: TargenConfig) {
+        colourSpace = config.colourSpace
+        patchPreset = PatchCountPreset(rawValue: "\(config.patchCount)") ?? .custom
+        customPatchCount = config.patchCount
+        whitePatches = config.whitePatches
+        blackPatches = config.blackPatches
+        greySteps = config.greySteps ?? 5
+        greyStepsEnabled = config.greySteps != nil
+        singleChannelSteps = config.singleChannelSteps ?? 5
+        singleChannelEnabled = config.singleChannelSteps != nil
+        neutralSteps = config.neutralSteps ?? 3
+        neutralStepsEnabled = config.neutralSteps != nil
+        neutralConcentration = config.neutralConcentration ?? 0.50
+        neutralConcEnabled = config.neutralConcentration != nil
+        preconditioningProfile = config.preconditioningProfile
+        highQuality = config.ofpsHighQuality == true
+        adaptation = config.ofpsAdaptation ?? 0.10
+        adaptationEnabled = config.ofpsAdaptation != nil
+        algorithm = config.fullSpreadAlgorithm ?? .ofps
+        totalInkLimit = config.totalInkLimit ?? 320
+        inkLimitEnabled = config.totalInkLimit != nil
+        darkEmphasis = config.darkEmphasis ?? 1.0
+        darkEmphasisEnabled = config.darkEmphasis != nil
+        devicePower = config.devicePower ?? 1.0
+        devicePowerEnabled = config.devicePower != nil
+    }
+
+    private func applyPrinttargForm(_ config: PrinttargConfig) {
+        instrument = config.instrument
+        pageSize = config.pageSize
+        customPageW = config.customPageWidth
+        customPageH = config.customPageHeight
+        bitDepth = config.bitDepth
+        tiffDpi = config.dpi
+        layoutOrder = config.layoutOrder
+        customSeed = config.customSeed
+    }
+
     /// Snapshot of the live Stage 1/2 form as a custom preset.
     func saveCurrentAsPreset() {
         let name = savePresetName.trimmingCharacters(in: .whitespacesAndNewlines)
@@ -614,39 +444,11 @@ final class TargetWorkflowViewModel {
             id: "custom-\(UUID().uuidString.lowercased())",
             name: name,
             description: savePresetDesc.trimmingCharacters(in: .whitespacesAndNewlines),
-            colourSpace: colourSpace == .cmyk ? "cmyk" : "rgb",
-            patchCount: effectivePatchCount,
-            whitePatches: whitePatches,
-            blackPatches: blackPatches,
-            greySteps: greyStepsEnabled ? greySteps : nil,
-            singleChannelSteps: singleChannelEnabled ? singleChannelSteps : nil,
-            neutralSteps: neutralStepsEnabled ? neutralSteps : nil,
-            neutralConcentration: neutralConcEnabled ? neutralConcentration : nil,
-            preconditioningProfile: preconditioningProfile,
-            ofpsHighQuality: highQuality ? true : nil,
-            ofpsAdaptation: adaptationEnabled ? adaptation : nil,
-            fullSpreadAlgorithm: algorithm.presetValue,
-            totalInkLimit: inkLimitEnabled ? totalInkLimit : nil,
-            darkEmphasis: darkEmphasisEnabled ? darkEmphasis : nil,
-            devicePower: devicePowerEnabled ? devicePower : nil,
-            instrument: instrument.rawValue,
-            pageSize: pageSize == .custom
-                ? "\(Int(customPageW))x\(Int(customPageH))"
-                : pageSize.rawValue,
-            bitDepth: bitDepth.rawValue,
-            dpi: tiffDpi,
-            randomSeed: layoutOrder == .deterministic ? 1 : customSeed,
-            noRandomize: layoutOrder == .raster,
+            targen: buildTargenConfig(),
+            printtarg: buildPrinttargConfig(),
+            colprof: profile.buildColprofConfig(),
             calibrationFile: profile.calibrationFile.isEmpty ? nil : profile.calibrationFile,
-            applyCalibration: profile.applyCalibration ? true : nil,
-            colprofAlgorithm: profile.algorithm,
-            colprofQuality: profile.quality,
-            colprofIntent: profile.intent.isEmpty ? nil : profile.intent,
-            colprofFwa: profile.fwaValue,
-            colprofIlluminant: profile.illuminant.isEmpty ? nil : profile.illuminant,
-            colprofObserver: profile.observer.isEmpty ? nil : profile.observer,
-            colprofInputViewingCond: profile.inputViewingCond.isEmpty ? nil : profile.inputViewingCond,
-            colprofOutputViewingCond: profile.outputViewingCond.isEmpty ? nil : profile.outputViewingCond
+            applyCalibration: profile.applyCalibration ? true : nil
         )
         do {
             try environment.presetStore.saveCustom(preset)
@@ -710,10 +512,6 @@ final class TargetWorkflowViewModel {
     }
 
     static func parseCustomPage(_ raw: String) -> (Double, Double)? {
-        let parts = raw.lowercased().split(separator: "x")
-        guard parts.count == 2,
-              let w = Double(parts[0]), let h = Double(parts[1]),
-              w >= 50, h >= 50 else { return nil }
-        return (w, h)
+        PageSize.parseCustom(raw)
     }
 }

Sources/ICCery/WizardViewModel.swift

@@ -67,8 +67,12 @@ final class WizardViewModel {
         self.calibrationOriginalBasename = s.calibrationOriginalBasename
         // A Force Quit mid-calibration leaves a CAL_ basename behind; restore
         // the original before the UI can do anything with it (#29).
-        if basename.hasPrefix("CAL_"), !calibrationOriginalBasename.isEmpty {
-            basename = calibrationOriginalBasename
+        if CalibrationIdentity.isCalibration(basename), !calibrationOriginalBasename.isEmpty {
+            let identity = CalibrationIdentity.parse(
+                liveBasename: basename,
+                persistedOriginal: calibrationOriginalBasename
+            )
+            basename = identity.originalBasename
             calibrationOriginalBasename = ""
             sessionMode = .profile
             stage = .generate
@@ -128,7 +132,7 @@ final class WizardViewModel {
     /// refused and the original basename is restored (#29).
     func go(to target: WizardStage) {
         guard target != .calibrate else { enterCalibration(); return }
-        if basename.hasPrefix("CAL_") {
+        if CalibrationIdentity.isCalibration(basename) {
             guard !calibrationOriginalBasename.isEmpty else {
                 showNotice(
                     "Cannot leave calibration — the original target name is missing.",
@@ -152,7 +156,7 @@ final class WizardViewModel {
     }
 
     func enterCalibration() {
-        if !basename.isEmpty, !basename.hasPrefix("CAL_"), calibrationOriginalBasename.isEmpty {
+        if !basename.isEmpty, !CalibrationIdentity.isCalibration(basename), calibrationOriginalBasename.isEmpty {
             calibrationOriginalBasename = basename
         }
         sessionMode = .calibration

Tests/ICCeryCoreTests/ArgsBuilderTests.swift

@@ -0,0 +1,94 @@
+import Testing
+import Foundation
+@testable import ICCeryCore
+
+@Suite("ArgsBuilder")
+struct ArgsBuilderTests {
+
+    // MARK: - option
+
+    @Test("option: nil emits nothing")
+    func optionNil() {
+        #expect(ArgsBuilder.option("-f", nil) == [])
+    }
+
+    @Test("option: present value emits flag and value verbatim")
+    func optionPresent() {
+        #expect(ArgsBuilder.option("-f", "abc") == ["-f", "abc"])
+        #expect(ArgsBuilder.option("-f", "") == ["-f", ""])
+        #expect(ArgsBuilder.option("-f", "  padded  ") == ["-f", "  padded  "])
+    }
+
+    // MARK: - optionIfNonEmpty
+
+    @Test("optionIfNonEmpty: nil and empty emit nothing")
+    func optionIfNonEmptyNilEmpty() {
+        #expect(ArgsBuilder.optionIfNonEmpty("-d", nil) == [])
+        #expect(ArgsBuilder.optionIfNonEmpty("-d", "") == [])
+    }
+
+    @Test("optionIfNonEmpty: whitespace-only emits nothing")
+    func optionIfNonEmptyWhitespace() {
+        #expect(ArgsBuilder.optionIfNonEmpty("-d", "   ") == [])
+        #expect(ArgsBuilder.optionIfNonEmpty("-d", " \t\n ") == [])
+    }
+
+    @Test("optionIfNonEmpty: trims surrounding whitespace")
+    func optionIfNonEmptyTrims() {
+        #expect(ArgsBuilder.optionIfNonEmpty("-d", "  label  ") == ["-d", "label"])
+        #expect(ArgsBuilder.optionIfNonEmpty("-d", "\tcal.cal\n") == ["-d", "cal.cal"])
+    }
+
+    // MARK: - optionUnlessApprox
+
+    @Test("optionUnlessApprox: nil emits nothing")
+    func optionUnlessApproxNil() {
+        #expect(ArgsBuilder.optionUnlessApprox("-N", nil, skip: 0.50) == [])
+    }
+
+    @Test("optionUnlessApprox: exact skip value emits nothing")
+    func optionUnlessApproxExactSkip() {
+        #expect(ArgsBuilder.optionUnlessApprox("-N", 0.50, skip: 0.50) == [])
+        #expect(ArgsBuilder.optionUnlessApprox("-V", 1.0, skip: 1.0) == [])
+    }
+
+    @Test("optionUnlessApprox: within epsilon emits nothing")
+    func optionUnlessApproxWithinEpsilon() {
+        #expect(ArgsBuilder.optionUnlessApprox("-N", 0.5005, skip: 0.50) == [])
+        #expect(ArgsBuilder.optionUnlessApprox("-V", 0.9995, skip: 1.0) == [])
+    }
+
+    @Test("optionUnlessApprox: outside epsilon emits flag")
+    func optionUnlessApproxOutsideEpsilon() {
+        #expect(ArgsBuilder.optionUnlessApprox("-N", 0.75, skip: 0.50) == ["-N", "0.75"])
+        #expect(ArgsBuilder.optionUnlessApprox("-V", 1.50, skip: 1.0) == ["-V", "1.50"])
+        #expect(ArgsBuilder.optionUnlessApprox("-N", 0.498, skip: 0.50) == ["-N", "0.50"])
+    }
+
+    @Test("optionUnlessApprox: POSIX formatting is locale-stable")
+    func optionUnlessApproxPOSIX() {
+        // 1234.5 must never produce a grouping separator or comma decimal.
+        #expect(ArgsBuilder.optionUnlessApprox("-p", 1234.5, skip: 1.0) == ["-p", "1234.50"])
+        #expect(ArgsBuilder.optionUnlessApprox("-p", 2.0, skip: 1.0) == ["-p", "2.00"])
+    }
+
+    @Test("optionUnlessApprox: custom epsilon and format honoured")
+    func optionUnlessApproxCustom() {
+        #expect(ArgsBuilder.optionUnlessApprox("-x", 1.005, skip: 1.0, epsilon: 0.01) == [])
+        #expect(ArgsBuilder.optionUnlessApprox("-x", 1.5, skip: 1.0, format: "%.1f") == ["-x", "1.5"])
+    }
+
+    // MARK: - flag
+
+    @Test("flag: true emits the bare flag")
+    func flagTrue() {
+        #expect(ArgsBuilder.flag("-G", when: true) == ["-G"])
+        #expect(ArgsBuilder.flag("-r", when: true) == ["-r"])
+    }
+
+    @Test("flag: false emits nothing")
+    func flagFalse() {
+        #expect(ArgsBuilder.flag("-G", when: false) == [])
+        #expect(ArgsBuilder.flag("-r", when: false) == [])
+    }
+}

Tests/ICCeryCoreTests/ArgyllRunnerCalibrationTests.swift

@@ -5,13 +5,13 @@ import Testing
 @Suite("ArgyllRunner Calibration")
 struct ArgyllRunnerCalibrationTests {
 
-    private func makeRunner() -> ArgyllRunner {
+    private func makeRunner(processManager: ProcessManager = ProcessManager()) -> ArgyllRunner {
         let binDir = URL(fileURLWithPath: #filePath)
             .deletingLastPathComponent()
             .deletingLastPathComponent()
             .appendingPathComponent("ICCeryUITests/Fixtures/bin")
         return ArgyllRunner(
-            processManager: .shared,
+            processManager: processManager,
             binaryResolver: BinaryResolver(overrideDir: binDir)
         )
     }
@@ -41,6 +41,35 @@ struct ArgyllRunnerCalibrationTests {
         try? FileManager.default.removeItem(at: testRoot)
     }
 
+    @Test("Calibration targen from foo runs as process id targen_CAL_foo")
+    func calibrationTargenProcessId() async throws {
+        let testRoot = try makeTestDir()
+        let pm = ProcessManager()
+        let runner = makeRunner(processManager: pm)
+        let events = pm.events()
+        // Subscribed before spawn; the exit event is emitted before
+        // runCalibrationTargen returns, so this always terminates.
+        let sawExit = Task {
+            for await event in events {
+                guard event.id == "targen_CAL_foo" else { continue }
+                if case .exit = event { return true }
+            }
+            return false
+        }
+        let config = CalibrationTargenConfig(
+            colourSpace: .rgb,
+            steps: 21,
+            basename: "foo",
+            workingDirectory: testRoot
+        )
+
+        let url = try await runner.runCalibrationTargen(config: config)
+
+        #expect(url.lastPathComponent == "CAL_foo.ti1")
+        #expect(await sawExit.value)
+        try? FileManager.default.removeItem(at: testRoot)
+    }
+
     @Test("printcal captured run creates .cal")
     func printcalProducesCal() async throws {
         let testRoot = try makeTestDir()
@@ -59,10 +88,28 @@ struct ArgyllRunnerCalibrationTests {
         try? FileManager.default.removeItem(at: testRoot)
     }
 
-    @Test("printcal failure throws printcalFailed")
+    @Test("printcal failure throws toolFailed")
     func printcalFailureThrows() async throws {
         let testRoot = try makeTestDir()
-        let runner = makeRunner()
+        defer { try? FileManager.default.removeItem(at: testRoot) }
+
+        // Per-test mock printcal that always fails — no global
+        // environment mutation, no shared fixture changes.
+        let binDir = try makeTestDir()
+        defer { try? FileManager.default.removeItem(at: binDir) }
+        let mockURL = binDir.appendingPathComponent("printcal")
+        try """
+        #!/bin/sh
+        echo "printcal mock failure" >&2
+        exit 1
+        """.write(to: mockURL, atomically: true, encoding: .utf8)
+        try FileManager.default.setAttributes(
+            [.posixPermissions: 0o755], ofItemAtPath: mockURL.path)
+
+        let runner = ArgyllRunner(
+            processManager: ProcessManager(),
+            binaryResolver: BinaryResolver(bundledRoot: binDir, overrideDir: binDir)
+        )
         let output = testRoot.appendingPathComponent("CAL_demo.cal")
         let config = PrintcalConfig(
             ti3Basename: "CAL_demo",
@@ -70,12 +117,9 @@ struct ArgyllRunnerCalibrationTests {
             outputURL: output
         )
 
-        setenv("ICCERY_MOCK_PRINTCAL_EXIT", "1", 1)
-        defer { unsetenv("ICCERY_MOCK_PRINTCAL_EXIT") }
-
-        await #expect(throws: (any Error).self) {
+        await #expect(throws: ArgyllRunnerError.toolFailed(
+            tool: "printcal", code: 1, logs: ["printcal mock failure\n"])) {
             _ = try await runner.runPrintcal(config: config)
         }
-        try? FileManager.default.removeItem(at: testRoot)
     }
 }

Tests/ICCeryCoreTests/ArgyllRunnerColprofTests.swift

@@ -33,7 +33,7 @@ struct ArgyllRunnerColprofTests {
         try FileManager.default.createDirectory(at: testRoot, withIntermediateDirectories: true)
 
         let runner = ArgyllRunner(
-            processManager: .shared,
+            processManager: ProcessManager(),
             binaryResolver: BinaryResolver(overrideDir: binDir)
         )
 
@@ -49,4 +49,32 @@ struct ArgyllRunnerColprofTests {
 
         try? FileManager.default.removeItem(at: testRoot)
     }
+
+    @Test("Failing colprof throws toolFailed with code and logs")
+    func colprofFailureThrowsToolFailed() async throws {
+        let dir = FileManager.default.temporaryDirectory
+            .appendingPathComponent("colprof-fail-\(UUID().uuidString)")
+        try FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: dir) }
+
+        let mockURL = dir.appendingPathComponent("colprof")
+        try """
+        #!/bin/sh
+        echo "colprof broke" >&2
+        exit 4
+        """.write(to: mockURL, atomically: true, encoding: .utf8)
+        try FileManager.default.setAttributes(
+            [.posixPermissions: 0o755], ofItemAtPath: mockURL.path)
+
+        let runner = ArgyllRunner(
+            processManager: ProcessManager(),
+            binaryResolver: BinaryResolver(bundledRoot: dir, overrideDir: dir)
+        )
+        let config = ColprofConfig(basename: "failrun", workingDirectory: dir)
+
+        await #expect(throws: ArgyllRunnerError.toolFailed(
+            tool: "colprof", code: 4, logs: ["colprof broke"])) {
+            try await runner.runColprof(config: config)
+        }
+    }
 }

Tests/ICCeryCoreTests/ArgyllRunnerStreamingLoopTests.swift

@@ -0,0 +1,161 @@
+import Foundation
+import Testing
+@testable import ICCeryCore
+
+/// Focused contracts for the shared `runStreamingTool` loop (#79).
+///
+/// Every test uses a per-test temporary directory, unique basenames,
+/// and a fresh `ProcessManager` — no shared UI fixture scripts and no
+/// process-environment mutation.
+@Suite("ArgyllRunner streaming loop contracts")
+struct ArgyllRunnerStreamingLoopTests {
+
+    private func makeTempDir() throws -> URL {
+        let dir = FileManager.default.temporaryDirectory
+            .appendingPathComponent("runner-loop-\(UUID().uuidString)")
+        try FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
+        return dir
+    }
+
+    private func writeMock(_ name: String, _ body: String, in dir: URL) throws {
+        let url = dir.appendingPathComponent(name)
+        try body.write(to: url, atomically: true, encoding: .utf8)
+        try FileManager.default.setAttributes(
+            [.posixPermissions: 0o755], ofItemAtPath: url.path)
+    }
+
+    private func makeRunner(binDir: URL) -> ArgyllRunner {
+        ArgyllRunner(
+            processManager: ProcessManager(),
+            binaryResolver: BinaryResolver(bundledRoot: binDir, overrideDir: binDir))
+    }
+
+    @Test("Non-zero exit throws toolFailed retaining code and collected stdout/stderr lines")
+    func nonZeroExitThrowsToolFailed() async throws {
+        let dir = try makeTempDir()
+        defer { try? FileManager.default.removeItem(at: dir) }
+        try writeMock("targen", """
+            #!/bin/sh
+            echo "Generating patches..."
+            echo "targen: too few patches" >&2
+            exit 3
+            """, in: dir)
+        let runner = makeRunner(binDir: dir)
+        let config = TargenConfig(
+            colourSpace: .rgb, patchCount: 800, whitePatches: 4,
+            blackPatches: 4, basename: "fail", workingDirectory: dir)
+
+        do {
+            _ = try await runner.runTargen(config: config)
+            Issue.record("Expected toolFailed")
+        } catch let error as ArgyllRunnerError {
+            guard case .toolFailed(let tool, let code, let logs) = error else {
+                Issue.record("Expected toolFailed, got \(error)")
+                return
+            }
+            #expect(tool == "targen")
+            #expect(code == 3)
+            #expect(logs.contains("Generating patches..."))
+            #expect(logs.contains("targen: too few patches"))
+        }
+    }
+
+    @Test("Exit 0 without expected artefact throws missingArtefact with the artefact path")
+    func zeroExitMissingArtefact() async throws {
+        let dir = try makeTempDir()
+        defer { try? FileManager.default.removeItem(at: dir) }
+        try writeMock("targen", """
+            #!/bin/sh
+            echo "done but wrote nothing"
+            exit 0
+            """, in: dir)
+        let runner = makeRunner(binDir: dir)
+        let expectedPath = dir.appendingPathComponent("gone.ti1").path
+        let config = TargenConfig(
+            colourSpace: .rgb, patchCount: 800, whitePatches: 4,
+            blackPatches: 4, basename: "gone", workingDirectory: dir)
+
+        await #expect(throws: ArgyllRunnerError.missingArtefact(expectedPath)) {
+            try await runner.runTargen(config: config)
+        }
+    }
+
+    @Test("Immediate exit after one stdout line still delivers the line and succeeds")
+    func immediateExitDeliversLine() async throws {
+        let dir = try makeTempDir()
+        defer { try? FileManager.default.removeItem(at: dir) }
+        try writeMock("targen", """
+            #!/bin/sh
+            last=""
+            for arg in "$@"; do last="$arg"; done
+            echo "only line"
+            touch "$last.ti1"
+            exit 0
+            """, in: dir)
+        let runner = makeRunner(binDir: dir)
+        let config = TargenConfig(
+            colourSpace: .rgb, patchCount: 800, whitePatches: 4,
+            blackPatches: 4, basename: "quick", workingDirectory: dir)
+
+        let holder = LogHolder()
+        let url = try await runner.runTargen(config: config) { batch in
+            holder.append(batch)
+        }
+        #expect(url.lastPathComponent == "quick.ti1")
+        #expect(FileManager.default.fileExists(atPath: url.path))
+        #expect(holder.lines.contains("only line"))
+    }
+
+    @Test("colprof unterminated progress fragment reaches onLogBatch before exit")
+    func colprofPartialLineFlush() async throws {
+        let dir = try makeTempDir()
+        defer { try? FileManager.default.removeItem(at: dir) }
+        // The fragment is printed without a newline, then the mock sleeps
+        // past the 500 ms partial-line flush interval before writing the
+        // artefact and exiting — so the tail is delivered mid-run.
+        try writeMock("colprof", """
+            #!/bin/sh
+            last=""
+            for arg in "$@"; do last="$arg"; done
+            printf 'Doing gamut mapping'
+            sleep 2
+            touch "$last.icc"
+            exit 0
+            """, in: dir)
+        let runner = makeRunner(binDir: dir)
+        let config = ColprofConfig(basename: "frag", workingDirectory: dir)
+
+        let holder = LogHolder()
+        let url = try await runner.runColprof(config: config) { batch in
+            holder.append(batch)
+        }
+        #expect(url.lastPathComponent == "frag.icc")
+        #expect(FileManager.default.fileExists(atPath: url.path))
+        #expect(holder.lines.contains("Doing gamut mapping"))
+    }
+
+    @Test("toolFailed maps each tool to its user-facing description",
+          arguments: [
+            (tool: "chartread", expected: "Chartread failed: boom"),
+            (tool: "average", expected: "Averaging failed: boom"),
+            (tool: "colprof", expected: "Profile creation failed: boom"),
+            (tool: "printcal", expected: "Calibration curve computation failed: boom"),
+            (tool: "applycal", expected: "Apply calibration failed: boom"),
+            (tool: "iccgamut", expected: "Gamut extraction failed: boom"),
+            (tool: "profcheck", expected: "Profile verification failed: boom"),
+          ])
+    func toolDescriptions(tool: String, expected: String) {
+        let error = ArgyllRunnerError.toolFailed(tool: tool, code: 1, logs: ["boom"])
+        #expect(error.errorDescription == expected)
+    }
+
+    @Test("toolFailed falls back to a generic description for unmapped tools and empty logs")
+    func genericFallbacks() {
+        let unknown = ArgyllRunnerError.toolFailed(tool: "targen", code: 7, logs: ["boom"])
+        #expect(unknown.errorDescription == "Process exited with code 7")
+
+        let emptyLogs = ArgyllRunnerError.toolFailed(tool: "colprof", code: 2, logs: [])
+        #expect(emptyLogs.errorDescription
+            == "Profile creation failed: exited with code 2")
+    }
+}

Tests/ICCeryCoreTests/ArtefactFilesTests.swift

@@ -122,3 +122,105 @@ struct ArtefactFilesTests {
         ))
     }
 }
+
+@Suite("ArtefactProbe profile resolve")
+struct ArtefactProbeProfileTests {
+    private func makeDir() throws -> URL {
+        let dir = FileManager.default.temporaryDirectory
+            .appendingPathComponent("probe-\(UUID().uuidString)")
+        try FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
+        return dir
+    }
+
+    // MARK: Basename probe matrix (#69)
+
+    @Test("basename probe: only .icc exists")
+    func onlyIcc() throws {
+        let dir = try makeDir()
+        let icc = dir.appendingPathComponent("job.icc")
+        try Data("icc".utf8).write(to: icc)
+        #expect(ArtefactProbe.resolveProfile(basename: "job", cwd: dir)?.path == icc.path)
+    }
+
+    @Test("basename probe: only .icm exists")
+    func onlyIcm() throws {
+        let dir = try makeDir()
+        let icm = dir.appendingPathComponent("job.icm")
+        try Data("icm".utf8).write(to: icm)
+        #expect(ArtefactProbe.resolveProfile(basename: "job", cwd: dir)?.path == icm.path)
+    }
+
+    @Test("basename probe prefers .icm")
+    func icmWins() throws {
+        let dir = try makeDir()
+        try Data("icc".utf8).write(to: dir.appendingPathComponent("job.icc"))
+        let icm = dir.appendingPathComponent("job.icm")
+        try Data("icm".utf8).write(to: icm)
+        let url = ArtefactProbe.resolveProfile(basename: "job", cwd: dir)
+        #expect(url?.path == icm.path)
+    }
+
+    @Test("basename probe: neither exists returns nil")
+    func neitherExists() throws {
+        let dir = try makeDir()
+        #expect(ArtefactProbe.resolveProfile(basename: "job", cwd: dir) == nil)
+    }
+
+    // MARK: Explicit URL matrix (#69 / #83)
+
+    @Test("explicit existing .icc wins even when .icm exists")
+    func explicitIccWins() throws {
+        let dir = try makeDir()
+        let icc = dir.appendingPathComponent("job.icc")
+        try Data("icc".utf8).write(to: icc)
+        try Data("icm".utf8).write(to: dir.appendingPathComponent("job.icm"))
+        #expect(ArtefactProbe.resolveProfile(icc).path == icc.path)
+    }
+
+    @Test("explicit existing .icm wins even when .icc exists")
+    func explicitIcmWins() throws {
+        let dir = try makeDir()
+        try Data("icc".utf8).write(to: dir.appendingPathComponent("job.icc"))
+        let icm = dir.appendingPathComponent("job.icm")
+        try Data("icm".utf8).write(to: icm)
+        #expect(ArtefactProbe.resolveProfile(icm).path == icm.path)
+    }
+
+    @Test("explicit missing .icc flips to sibling .icm")
+    func flipExtension() throws {
+        let dir = try makeDir()
+        let icc = dir.appendingPathComponent("job.icc")
+        let icm = dir.appendingPathComponent("job.icm")
+        try Data("icm".utf8).write(to: icm)
+        let resolved = ArtefactProbe.resolveProfile(icc)
+        #expect(resolved.path == icm.path)
+    }
+
+    @Test("explicit missing .icm flips to sibling .icc")
+    func flipToIcc() throws {
+        let dir = try makeDir()
+        let icc = dir.appendingPathComponent("job.icc")
+        let icm = dir.appendingPathComponent("job.icm")
+        try Data("icc".utf8).write(to: icc)
+        #expect(ArtefactProbe.resolveProfile(icm).path == icc.path)
+    }
+
+    @Test("explicit missing both returns the original URL")
+    func missingBoth() throws {
+        let dir = try makeDir()
+        let icc = dir.appendingPathComponent("job.icc")
+        #expect(ArtefactProbe.resolveProfile(icc).path == icc.path)
+    }
+
+    @Test("unrelated extension is never rewritten")
+    func unrelatedExtension() throws {
+        let dir = try makeDir()
+        let mpp = dir.appendingPathComponent("job.mpp")
+        let icc = dir.appendingPathComponent("job.icc")
+        try Data("icc".utf8).write(to: icc)
+        // Even though a sibling .icc exists, a missing .mpp stays .mpp.
+        #expect(ArtefactProbe.resolveProfile(mpp).path == mpp.path)
+        let txt = dir.appendingPathComponent("job.txt")
+        #expect(ArtefactProbe.resolveProfile(txt).path == txt.path)
+    }
+}

Tests/ICCeryCoreTests/CalibrationIdentityTests.swift

@@ -0,0 +1,78 @@
+import Foundation
+import Testing
+@testable import ICCeryCore
+
+/// Issue #83 — canonical `CAL_` / original-stem pairing.
+@Suite("CalibrationIdentity")
+struct CalibrationIdentityTests {
+    @Test("live foo, no persisted")
+    func livePlain() {
+        let id = CalibrationIdentity.parse(liveBasename: "foo", persistedOriginal: "")
+        #expect(id.originalBasename == "foo")
+        #expect(id.calibrationBasename == "CAL_foo")
+    }
+
+    @Test("live foo ignores stale persisted")
+    func livePlainIgnoresPersisted() {
+        let id = CalibrationIdentity.parse(liveBasename: "foo", persistedOriginal: "bar")
+        #expect(id.originalBasename == "foo")
+        #expect(id.calibrationBasename == "CAL_foo")
+    }
+
+    @Test("live CAL_foo, persisted foo")
+    func liveCalPersisted() {
+        let id = CalibrationIdentity.parse(liveBasename: "CAL_foo", persistedOriginal: "foo")
+        #expect(id.originalBasename == "foo")
+        #expect(id.calibrationBasename == "CAL_foo")
+    }
+
+    @Test("live CAL_foo, empty persisted strips prefix")
+    func liveCalNoPersist() {
+        let id = CalibrationIdentity.parse(liveBasename: "CAL_foo", persistedOriginal: "")
+        #expect(id.originalBasename == "foo")
+        #expect(id.calibrationBasename == "CAL_foo")
+    }
+
+    @Test("persisted original wins over CAL_ live")
+    func persistedWins() {
+        let id = CalibrationIdentity.parse(liveBasename: "CAL_foo", persistedOriginal: "bar")
+        #expect(id.originalBasename == "bar")
+        #expect(id.calibrationBasename == "CAL_bar")
+    }
+
+    @Test("empty live yields empty identity even with persisted original")
+    func emptyLiveWithPersisted() {
+        let id = CalibrationIdentity.parse(liveBasename: "", persistedOriginal: "foo")
+        #expect(id.originalBasename.isEmpty)
+        #expect(id.calibrationBasename.isEmpty)
+    }
+
+    @Test("empty live, empty persisted")
+    func emptyLive() {
+        let id = CalibrationIdentity.parse(liveBasename: "", persistedOriginal: "")
+        #expect(id.originalBasename.isEmpty)
+        #expect(id.calibrationBasename.isEmpty)
+    }
+
+    @Test("prefix is idempotent on already-prefixed input")
+    func alreadyPrefixed() {
+        #expect(CalibrationIdentity.prefix("CAL_foo") == "CAL_foo")
+        #expect(CalibrationIdentity.prefix("foo") == "CAL_foo")
+        let id = CalibrationIdentity.parse(liveBasename: "CAL_CAL_foo", persistedOriginal: "")
+        #expect(id.originalBasename == "CAL_foo")
+        #expect(id.calibrationBasename == "CAL_foo")
+    }
+
+    @Test("prefix never invents a name from empty input")
+    func prefixEmpty() {
+        #expect(CalibrationIdentity.prefix("").isEmpty)
+        #expect(CalibrationIdentity.strip("foo") == "foo")
+        #expect(CalibrationIdentity.strip("CAL_foo") == "foo")
+    }
+
+    @Test("runner process id for a calibration targen is targen_CAL_*")
+    func processIdMatches() {
+        let cal = CalibrationIdentity.prefix("foo")
+        #expect(ProcessID.targen(cal) == "targen_CAL_foo")
+    }
+}

Tests/ICCeryCoreTests/JSONFileStoreTests.swift

@@ -0,0 +1,84 @@
+import Foundation
+import Testing
+@testable import ICCeryCore
+
+@Suite("JSONFileStore")
+struct JSONFileStoreTests {
+    private func tempURL() -> URL {
+        FileManager.default.temporaryDirectory
+            .appendingPathComponent("json-store-\(UUID().uuidString).json")
+    }
+
+    @Test("Missing file returns default")
+    func missingFileDefaults() throws {
+        let store = JSONFileStore<AppSettings>(
+            fileURL: tempURL(),
+            corrupt: .throwCorrupt,
+            defaultValue: { .default }
+        )
+        #expect(try store.load() == .default)
+    }
+
+    @Test("Corrupt file with replaceWithDefault returns default and leaves bytes")
+    func corruptDefaults() throws {
+        let url = tempURL()
+        try "{ not json".write(to: url, atomically: true, encoding: .utf8)
+        let store = JSONFileStore<AppSettings>(
+            fileURL: url,
+            corrupt: .replaceWithDefault,
+            defaultValue: { .default }
+        )
+        #expect(try store.load() == .default)
+        let kept = try String(contentsOf: url, encoding: .utf8)
+        #expect(kept == "{ not json")
+    }
+
+    @Test("Corrupt file with throwCorrupt throws and leaves bytes")
+    func corruptThrows() throws {
+        let url = tempURL()
+        try "not json".write(to: url, atomically: true, encoding: .utf8)
+        let store = JSONFileStore<[Int]>(
+            fileURL: url,
+            corrupt: .throwCorrupt,
+            defaultValue: { [] }
+        )
+        #expect(throws: DecodingError.self) {
+            _ = try store.load()
+        }
+        let kept = try String(contentsOf: url, encoding: .utf8)
+        #expect(kept == "not json")
+    }
+
+    @Test("Pretty sorted keys")
+    func prettySorted() throws {
+        let url = tempURL()
+        let store = JSONFileStore<AppSettings>(
+            fileURL: url,
+            corrupt: .replaceWithDefault,
+            defaultValue: { .default }
+        )
+        try store.save(.default)
+        let text = try String(contentsOf: url, encoding: .utf8)
+        #expect(text.contains("\n"))
+        #expect(text.contains("\"delta_e_good_max\""))
+        // Lexical key sorting: ascending order of top-level keys.
+        let keys = [
+            "ask_before_overwrite_profile",
+            "calibration_stale_days",
+            "custom_presets",
+            "default_install_location",
+            "delta_e_good_max",
+            "delta_e_warning_max",
+            "enable_i1pro2_leds",
+            "open_color_panel_after_install",
+        ]
+        var lastIndex = text.startIndex
+        for key in keys {
+            guard let range = text.range(of: "\"\(key)\"", range: lastIndex..<text.endIndex) else {
+                Issue.record("missing or out-of-order key \(key)")
+                return
+            }
+            lastIndex = range.upperBound
+        }
+    }
+}

Tests/ICCeryCoreTests/MeasurementTests.swift

@@ -159,6 +159,51 @@ struct ChartreadRowTests {
         #expect(row.patchCount == 1)
         #expect(row.patches[0].measured.lab?.l == 51)
     }
+
+    @Test("Decodes a row carrying both XYZ and Lab arrays")
+    func decodeXYZAndLab() throws {
+        let json = """
+        {"event": "row_complete", "row_id": "B", "row_index": 1, "total_rows": 2,
+         "patch_count": 1, "patches": [
+           {"id": "7", "loc": "B7", "is_pad": false, "device": [10, 20, 30, 40],
+            "measured": {"XYZ": [30.5, 32.1, 25.9], "Lab": [63.4, 2.5, -8.2]}}
+         ]}
+        """
+        let row = try JSONDecoder().decode(ChartreadRow.self, from: Data(json.utf8))
+        let measured = row.patches[0].measured
+        #expect(measured.xyz == CIEXYZ(x: 30.5, y: 32.1, z: 25.9))
+        #expect(measured.lab == CIELab(l: 63.4, a: 2.5, b: -8.2))
+    }
+
+    @Test("XYZColor/CIEXYZ encode as an unkeyed three-number array")
+    func xyzWireEncoding() throws {
+        for color in [XYZColor(x: 1.5, y: 2.5, z: 3.5), CIEXYZ(x: 1.5, y: 2.5, z: 3.5)] {
+            let value = try JSONSerialization.jsonObject(
+                with: JSONEncoder().encode(color))
+            #expect(value as? [Double] == [1.5, 2.5, 3.5])
+        }
+    }
+
+    @Test("LabColor/CIELab encode as an unkeyed three-number array")
+    func labWireEncoding() throws {
+        for color in [LabColor(l: 50, a: -1, b: 2), CIELab(l: 50, a: -1, b: 2)] {
+            let value = try JSONSerialization.jsonObject(
+                with: JSONEncoder().encode(color))
+            #expect(value as? [Double] == [50, -1, 2])
+        }
+    }
+
+    @Test("PatchColor keeps the XYZ and Lab keys over unkeyed arrays")
+    func patchColorKeys() throws {
+        let color = PatchColor(
+            xyz: CIEXYZ(x: 10, y: 20, z: 30),
+            lab: CIELab(l: 55, a: 1, b: -2))
+        let object = try JSONSerialization.jsonObject(
+            with: JSONEncoder().encode(color)) as? [String: Any]
+        #expect(object?["XYZ"] as? [Double] == [10, 20, 30])
+        #expect(object?["Lab"] as? [Double] == [55, 1, -2])
+        #expect(object?["spectral"] == nil)
+    }
 }
 
 @Suite("ColourMath")

Tests/ICCeryCoreTests/PresetTests.swift

@@ -230,3 +230,267 @@ struct PresetMigrationTests {
         #expect(back.dpi == 150)
     }
 }
+
+@Suite("Preset mapping")
+struct PresetMappingTests {
+    @Test("Draft 150 DPI maps into PrinttargConfig")
+    func draftDpi() {
+        let cfg = PrinttargConfig(
+            preset: PresetCatalog.draftRGB,
+            basename: "t",
+            workingDirectory: nil,
+            calibrationFile: nil
+        )
+        #expect(cfg.dpi == 150)
+        #expect(cfg.layoutOrder == .deterministic)
+    }
+
+    @Test("Nil optional targen fields stay nil")
+    func optionalNil() {
+        let preset = ProfilingPreset(id: "x", name: "n", patchCount: 800)
+        let cfg = TargenConfig(preset: preset, basename: "t", workingDirectory: nil)
+        #expect(cfg.greySteps == nil)
+        #expect(cfg.singleChannelSteps == nil)
+        #expect(cfg.neutralSteps == nil)
+        #expect(cfg.totalInkLimit == nil)
+        #expect(cfg.darkEmphasis == nil)
+        #expect(cfg.devicePower == nil)
+    }
+
+    @Test("Custom page and FWA survive a config round-trip")
+    func roundTripConfigs() {
+        var preset = PresetCatalog.highQualityCMYK
+        preset.pageSize = "210x297"
+        preset.colprofFwa = "D50"
+        preset.greySteps = nil
+        let targen = TargenConfig(preset: preset, basename: "job", workingDirectory: nil)
+        let printtarg = PrinttargConfig(
+            preset: preset, basename: "job", workingDirectory: nil, calibrationFile: nil
+        )
+        let colprof = ColprofConfig(preset: preset, basename: "job", workingDirectory: nil)
+        #expect(printtarg.pageSize == .custom)
+        #expect(printtarg.customPageWidth == 210)
+        #expect(colprof.fwa == "D50")
+        let back = ProfilingPreset(
+            id: preset.id,
+            name: preset.name,
+            description: preset.description,
+            targen: targen,
+            printtarg: printtarg,
+            colprof: colprof,
+            calibrationFile: preset.calibrationFile,
+            applyCalibration: preset.applyCalibration
+        )
+        #expect(back.dpi == preset.dpi)
+        #expect(back.colourSpace == "cmyk")
+        #expect(back.pageSize == "210x297")
+        #expect(back.colprofFwa == "D50")
+        #expect(back.greySteps == nil)
+    }
+
+    @Test("Full preset round-trips through all three configs with every field asserted")
+    func fullRoundTrip() {
+        let preset = ProfilingPreset(
+            id: "custom-full",
+            name: "Full",
+            description: "All fields",
+            colourSpace: "cmyk",
+            patchCount: 1500,
+            whitePatches: 6,
+            blackPatches: 8,
+            greySteps: 9,
+            singleChannelSteps: 7,
+            neutralSteps: 4,
+            neutralConcentration: 0.7,
+            preconditioningProfile: "/tmp/pre.icm",
+            ofpsHighQuality: true,
+            ofpsAdaptation: 0.2,
+            fullSpreadAlgorithm: "R",
+            totalInkLimit: 280,
+            darkEmphasis: 1.3,
+            devicePower: 1.2,
+            instrument: "p3",
+            pageSize: "250x300",
+            bitDepth: 16,
+            dpi: 360,
+            randomSeed: 42,
+            noRandomize: false,
+            calibrationFile: "/tmp/a.cal",
+            applyCalibration: true,
+            colprofAlgorithm: "x",
+            colprofQuality: "u",
+            colprofIntent: "p",
+            colprofFwa: "D65",
+            colprofIlluminant: "D65",
+            colprofObserver: "1931_2",
+            colprofInputViewingCond: "D50_2",
+            colprofOutputViewingCond: "D65_2"
+        )
+
+        let targen = TargenConfig(preset: preset, basename: "j", workingDirectory: nil)
+        #expect(targen.colourSpace == .cmyk)
+        #expect(targen.patchCount == 1500)
+        #expect(targen.whitePatches == 6)
+        #expect(targen.blackPatches == 8)
+        #expect(targen.greySteps == 9)
+        #expect(targen.singleChannelSteps == 7)
+        #expect(targen.neutralSteps == 4)
+        #expect(targen.neutralConcentration == 0.7)
+        #expect(targen.preconditioningProfile == "/tmp/pre.icm")
+        #expect(targen.ofpsHighQuality == true)
+        #expect(targen.ofpsAdaptation == 0.2)
+        #expect(targen.fullSpreadAlgorithm == .uniformRandom)
+        #expect(targen.totalInkLimit == 280)
+        #expect(targen.darkEmphasis == 1.3)
+        #expect(targen.devicePower == 1.2)
+
+        let printtarg = PrinttargConfig(
+            preset: preset,
+            basename: "j",
+            workingDirectory: nil,
+            calibrationFile: preset.calibrationFile
+        )
+        #expect(printtarg.instrument == .p3)
+        #expect(printtarg.pageSize == .custom)
+        #expect(printtarg.customPageWidth == 250)
+        #expect(printtarg.customPageHeight == 300)
+        #expect(printtarg.bitDepth == .sixteen)
+        #expect(printtarg.dpi == 360)
+        #expect(printtarg.layoutOrder == .customSeed)
+        #expect(printtarg.customSeed == 42)
+        #expect(printtarg.calibrationFile == "/tmp/a.cal")
+
+        let colprof = ColprofConfig(preset: preset, basename: "j", workingDirectory: nil)
+        #expect(colprof.algorithm == "x")
+        #expect(colprof.quality == "u")
+        #expect(colprof.intent == "p")
+        #expect(colprof.fwa == "D65")
+        #expect(colprof.illuminant == "D65")
+        #expect(colprof.observer == "1931_2")
+        #expect(colprof.inputViewingCond == "D50_2")
+        #expect(colprof.outputViewingCond == "D65_2")
+
+        let back = ProfilingPreset(
+            id: preset.id,
+            name: preset.name,
+            description: preset.description,
+            targen: targen,
+            printtarg: printtarg,
+            colprof: colprof,
+            calibrationFile: preset.calibrationFile,
+            applyCalibration: preset.applyCalibration
+        )
+        #expect(back == preset)
+    }
+
+    @Test("Every full-spread algorithm round-trips", arguments: [
+        ("ofps", FullSpreadAlgorithm.ofps),
+        ("t", .target),
+        ("r", .random),
+        ("R", .uniformRandom),
+        ("q", .quasiRandom),
+        ("Q", .uniformQuasiRandom),
+        ("i", .invertedQuasiRandom),
+        ("I", .invertedUniformQuasiRandom)
+    ])
+    func fullSpreadAlgorithms(value: String, expected: FullSpreadAlgorithm) {
+        var preset = ProfilingPreset(id: "x", name: "n", patchCount: 100)
+        preset.fullSpreadAlgorithm = value
+        let cfg = TargenConfig(preset: preset, basename: "t", workingDirectory: nil)
+        if expected == .ofps {
+            // ofps is the default — no flag emitted, stored value is nil.
+            #expect(cfg.fullSpreadAlgorithm == nil)
+        } else {
+            #expect(cfg.fullSpreadAlgorithm == expected)
+        }
+        let back = ProfilingPreset(
+            id: "x", name: "n", description: "",
+            targen: cfg,
+            printtarg: PrinttargConfig(
+                preset: preset, basename: "t",
+                workingDirectory: nil, calibrationFile: nil
+            ),
+            colprof: ColprofConfig(preset: preset, basename: "t", workingDirectory: nil),
+            calibrationFile: nil,
+            applyCalibration: nil
+        )
+        #expect(back.fullSpreadAlgorithm == value)
+    }
+
+    @Test("Explicit ofpsHighQuality=false is preserved, distinct from nil")
+    func ofpsHighQualityFalse() {
+        var preset = ProfilingPreset(id: "x", name: "n", patchCount: 100)
+        preset.ofpsHighQuality = false
+        let cfg = TargenConfig(preset: preset, basename: "t", workingDirectory: nil)
+        #expect(cfg.ofpsHighQuality == false)
+
+        preset.ofpsHighQuality = nil
+        let nilCfg = TargenConfig(preset: preset, basename: "t", workingDirectory: nil)
+        #expect(nilCfg.ofpsHighQuality == nil)
+    }
+
+    @Test("noRandomize/seed layout mapping rules", arguments: [
+        (true, nil, LayoutOrder.raster, 1),
+        (true, 7, .raster, 7),
+        (false, nil, .deterministic, 1),
+        (false, 1, .deterministic, 1),
+        (nil, 1, .deterministic, 1),
+        (false, 5, .customSeed, 5)
+    ] as [(Bool?, Int?, LayoutOrder, Int)])
+    func layoutMapping(noRandomize: Bool?, seed: Int?, layout: LayoutOrder, expectedSeed: Int) {
+        var preset = ProfilingPreset(id: "x", name: "n", patchCount: 100)
+        preset.noRandomize = noRandomize
+        preset.randomSeed = seed
+        let cfg = PrinttargConfig(
+            preset: preset, basename: "t",
+            workingDirectory: nil, calibrationFile: nil
+        )
+        #expect(cfg.layoutOrder == layout)
+        #expect(cfg.customSeed == expectedSeed)
+    }
+
+    @Test("Custom page fallback matrix", arguments: [
+        ("250x300", PageSize.custom, 250.0, 300.0),
+        ("50x50", .custom, 50.0, 50.0),
+        ("foo", .a4, 210.0, 297.0),
+        ("30x40", .a4, 210.0, 297.0),
+        ("210x", .a4, 210.0, 297.0)
+    ] as [(String, PageSize, Double, Double)])
+    func customPageFallback(raw: String, page: PageSize, w: Double, h: Double) {
+        var preset = ProfilingPreset(id: "x", name: "n", patchCount: 100)
+        preset.pageSize = raw
+        let cfg = PrinttargConfig(
+            preset: preset, basename: "t",
+            workingDirectory: nil, calibrationFile: nil
+        )
+        #expect(cfg.pageSize == page)
+        #expect(cfg.customPageWidth == w)
+        #expect(cfg.customPageHeight == h)
+    }
+
+    @Test("FWA preset value → selection matrix", arguments: [
+        (nil, ColprofFwaSelection.none),
+        ("none", .none),
+        ("NONE", .none),
+        ("", .empty),
+        ("D50", .D50),
+        ("d50", .D50),
+        ("D65", .D65),
+        ("d65", .D65),
+        ("/tmp/fwa.sp", .custom)
+    ] as [(String?, ColprofFwaSelection)])
+    func fwaToSelection(raw: String?, expected: ColprofFwaSelection) {
+        #expect(ColprofFwaSelection(presetValue: raw) == expected)
+    }
+
+    @Test("FWA selection → preset value matrix", arguments: [
+        (ColprofFwaSelection.none, nil),
+        (.empty, ""),
+        (.D50, "D50"),
+        (.D65, "D65"),
+        (.custom, "/tmp/fwa.sp")
+    ] as [(ColprofFwaSelection, String?)])
+    func fwaToPresetValue(selection: ColprofFwaSelection, expected: String?) {
+        #expect(selection.presetValue(customPath: "/tmp/fwa.sp") == expected)
+    }
+}

Tests/ICCeryCoreTests/PresetViewModelMappingTests.swift

@@ -0,0 +1,127 @@
+import Testing
+import Foundation
+@testable import ICCeryCore
+@testable import ICCery
+
+/// Issue #82 — preset application through the live view models, under an
+/// isolated `TestAppEnvironment` (temp stores, fresh ProcessManager).
+@Suite("PresetViewModelMapping")
+@MainActor
+struct PresetViewModelMappingTests {
+
+    private func makeWorkflow() throws -> (TestAppEnvironment, TargetWorkflowViewModel) {
+        let env = try TestAppEnvironment.make()
+        return (env, TargetWorkflowViewModel(environment: env.environment))
+    }
+
+    @Test("Applying a nil-FWA preset after a custom FWA clears the stale path")
+    func nilFwaClearsCustomPath() throws {
+        let (env, vm) = try makeWorkflow()
+        defer { env.cleanup() }
+
+        var customPreset = ProfilingPreset(
+            id: "c-fwa", name: "FWA", patchCount: 800,
+            colprofFwa: "/tmp/fwa.sp"
+        )
+        vm.applyPreset(customPreset)
+        #expect(vm.profile.fwaSelection == .custom)
+        #expect(vm.profile.fwaCustomPath == "/tmp/fwa.sp")
+
+        customPreset.colprofFwa = nil
+        vm.applyPreset(customPreset)
+        #expect(vm.profile.fwaSelection == .none)
+        #expect(vm.profile.fwaCustomPath == "")
+        #expect(vm.profile.fwaValue == nil)
+    }
+
+    @Test("Custom FWA preset path survives the round-trip to colprof_fwa")
+    func customFwaRoundTrip() throws {
+        let (env, vm) = try makeWorkflow()
+        defer { env.cleanup() }
+
+        let preset = ProfilingPreset(
+            id: "c-fwa2", name: "FWA2", patchCount: 800,
+            colprofFwa: "/tmp/other.sp"
+        )
+        vm.applyPreset(preset)
+        #expect(vm.profile.fwaSelection == .custom)
+        #expect(vm.profile.fwaCustomPath == "/tmp/other.sp")
+        #expect(vm.profile.fwaValue == "/tmp/other.sp")
+    }
+
+    @Test("Preset calibration reaches Stage 2 instead of stale live state")
+    func presetCalibrationReachesStage2() throws {
+        let (env, vm) = try makeWorkflow()
+        defer { env.cleanup() }
+
+        // Stale live state must not leak into the preset-applied layout.
+        vm.profile.applyCalibration = true
+        vm.profile.calibrationFile = "/tmp/stale.cal"
+
+        let preset = ProfilingPreset(
+            id: "c-cal", name: "Cal", patchCount: 800,
+            calibrationFile: "/tmp/preset.cal",
+            applyCalibration: true
+        )
+        vm.applyPreset(preset)
+
+        #expect(vm.profile.applyCalibration)
+        #expect(vm.profile.calibrationFile == "/tmp/preset.cal")
+        #expect(vm.buildPrinttargConfig().calibrationFile == "/tmp/preset.cal")
+    }
+
+    @Test("Preset with calibration disabled clears Stage 2 calibration")
+    func disabledCalibrationClearsStage2() throws {
+        let (env, vm) = try makeWorkflow()
+        defer { env.cleanup() }
+
+        vm.profile.applyCalibration = true
+        vm.profile.calibrationFile = "/tmp/stale.cal"
+
+        let preset = ProfilingPreset(
+            id: "c-nocal", name: "NoCal", patchCount: 800,
+            calibrationFile: "/tmp/preset.cal",
+            applyCalibration: nil
+        )
+        vm.applyPreset(preset)
+
+        #expect(!vm.profile.applyCalibration)
+        #expect(vm.buildPrinttargConfig().calibrationFile == nil)
+    }
+
+    @Test("Preset Stage 1/2 form fields apply to the live form")
+    func formFieldsApply() throws {
+        let (env, vm) = try makeWorkflow()
+        defer { env.cleanup() }
+
+        var preset = ProfilingPreset(
+            id: "c-form", name: "Form",
+            colourSpace: "cmyk", patchCount: 1500,
+            whitePatches: 6,
+            blackPatches: 8,
+            greySteps: 9,
+            fullSpreadAlgorithm: "r",
+            pageSize: "250x300",
+            dpi: 150
+        )
+        vm.applyPreset(preset)
+
+        #expect(vm.colourSpace == .cmyk)
+        #expect(vm.effectivePatchCount == 1500)
+        #expect(vm.whitePatches == 6)
+        #expect(vm.blackPatches == 8)
+        #expect(vm.greyStepsEnabled && vm.greySteps == 9)
+        #expect(vm.algorithm == .random)
+        #expect(vm.tiffDpi == 150)
+        #expect(vm.pageSize == .custom)
+        #expect(vm.customPageW == 250 && vm.customPageH == 300)
+        #expect(vm.selectedPresetID == "c-form")
+
+        // Disabled advanced controls stay nil in the snapshot, not
+        // numeric sentinels.
+        preset.greySteps = nil
+        vm.applyPreset(preset)
+        #expect(!vm.greyStepsEnabled)
+        #expect(vm.buildTargenConfig().greySteps == nil)
+    }
+}

Tests/ICCeryCoreTests/PrintcalArgsTests.swift

@@ -44,6 +44,29 @@ struct PrintcalArgsTests {
         ])
     }
 
+    @Test("Whitespace-only previous calibration path emits no -a")
+    func whitespacePreviousCal() throws {
+        let config = PrintcalConfig(
+            ti3Basename: "demo",
+            outputURL: tmp,
+            previousCalPath: "   \n\t "
+        )
+        let args = try PrintcalArgs.build(config: config)
+        #expect(!args.contains("-a"))
+        #expect(args == ["-v", "-e", "-o", "/tmp/out.cal", "CAL_demo"])
+    }
+
+    @Test("Previous calibration path is trimmed before emission")
+    func previousCalTrimmed() throws {
+        let config = PrintcalConfig(
+            ti3Basename: "demo",
+            outputURL: tmp,
+            previousCalPath: "  /tmp/old.cal  "
+        )
+        let args = try PrintcalArgs.build(config: config)
+        #expect(args[args.firstIndex(of: "-a")! + 1] == "/tmp/old.cal")
+    }
+
     @Test("Rejects invalid per-channel limit")
     func rejectsBadChannelLimit() {
         let config = PrintcalConfig(

Tests/ICCeryCoreTests/PrinttargTests.swift

@@ -131,6 +131,23 @@ struct PrinttargArgsTests {
         #expect(!args.contains("-I"))
     }
 
+    @Test("Whitespace-only label emits no -d; whitespace-only calibration emits no -K/-I")
+    func whitespaceOptions() throws {
+        let args = try PrinttargArgs.build(
+            config: config(label: "   \n ", calFile: " \t "))
+        #expect(!args.contains("-d"))
+        #expect(!args.contains("-K"))
+        #expect(!args.contains("-I"))
+    }
+
+    @Test("Label and calibration values are trimmed before emission")
+    func trimmedOptions() throws {
+        let args = try PrinttargArgs.build(
+            config: config(label: "  My Label  ", calFile: "  /tmp/a.cal  "))
+        #expect(args[args.firstIndex(of: "-d")! + 1] == "My Label")
+        #expect(args[args.firstIndex(of: "-K")! + 1] == "/tmp/a.cal")
+    }
+
     @Test("Unsafe basename throws")
     func unsafeBasename() {
         #expect(throws: PathSecurity.Error.self) {
@@ -349,7 +366,7 @@ struct ArgyllRunnerPrinttargTests {
         }
     }
 
-    @Test("Non-zero exit throws processFailed and stays on stage")
+    @Test("Non-zero exit throws toolFailed and stays on stage")
     func failure() async throws {
         let dir = try makeFixture("""
             #!/bin/sh
@@ -360,7 +377,8 @@ struct ArgyllRunnerPrinttargTests {
         let runner = ArgyllRunner(
             processManager: ProcessManager(),
             binaryResolver: BinaryResolver(bundledRoot: dir, overrideDir: dir))
-        await #expect(throws: ArgyllRunnerError.self) {
+        await #expect(throws: ArgyllRunnerError.toolFailed(
+            tool: "printtarg", code: 3, logs: ["oops"])) {
             try await runner.runPrinttarg(
                 config: PrinttargConfig(basename: "x", workingDirectory: dir))
         }

Tests/ICCeryCoreTests/ProcessManagerTests.swift

@@ -58,6 +58,59 @@ struct ProcessManagerTests {
         func finish() -> Bool { lock.lock(); defer { lock.unlock() }; if finished { return false }; finished = true; return true }
     }
 
+    /// Subscribes synchronously (registration happens inside `events()`)
+    /// then records every event for `id` until the task is cancelled.
+    /// Unlike `collect`, observation continues past `.exit` so tests can
+    /// prove exactly-once exit emission.
+    private func observe(
+        _ manager: ProcessManager,
+        id: String,
+        into box: Box
+    ) -> Task<Void, Never> {
+        let stream = manager.events()
+        return Task {
+            for await event in stream {
+                guard event.id == id else { continue }
+                box.append(event)
+            }
+        }
+    }
+
+    private func exitCount(in box: Box) -> Int {
+        box.events.filter { if case .exit = $0 { return true }; return false }.count
+    }
+
+    private func waitForExit(in box: Box, timeout: TimeInterval = 10) async -> Bool {
+        let deadline = Date().addingTimeInterval(timeout)
+        while Date() < deadline {
+            if exitCount(in: box) > 0 { return true }
+            try? await Task.sleep(for: .milliseconds(10))
+        }
+        return false
+    }
+
+    private func waitForFile(_ url: URL, timeout: TimeInterval = 5) async -> Bool {
+        let deadline = Date().addingTimeInterval(timeout)
+        while Date() < deadline {
+            if FileManager.default.fileExists(atPath: url.path) { return true }
+            try? await Task.sleep(for: .milliseconds(10))
+        }
+        return false
+    }
+
+    private func waitForRunning(
+        _ manager: ProcessManager,
+        id: String,
+        timeout: TimeInterval = 5
+    ) async -> Bool {
+        let deadline = Date().addingTimeInterval(timeout)
+        while Date() < deadline {
+            if await manager.isRunning(id) { return true }
+            try? await Task.sleep(for: .milliseconds(10))
+        }
+        return false
+    }
+
     // MARK: - Tests
 
     @Test func streamsStdoutAndEmitsExit() async throws {
@@ -214,6 +267,145 @@ struct ProcessManagerTests {
             try await pm.sendStdin(id: "nope", text: "d\n")
         }
     }
+
+    @Test func explicitPartialFlushEmitsRowColorsJSON() async throws {
+        let pm = ProcessManager()
+        let marker = Self.fixtureDir
+            .appendingPathComponent("partial-row-ready-\(UUID().uuidString)")
+        let bin = try script(
+            "partial-row.sh",
+            "#!/bin/sh\nprintf 'ROW_COLORS_JSON: {\"row\":9}'\ntouch \"$1\"\nsleep 30\n"
+        )
+        let box = Box()
+        let observer = observe(pm, id: "t11", into: box)
+        try await pm.runStreaming(id: "t11", binary: bin, arguments: [marker.path])
+        #expect(await waitForFile(marker))
+        // Retry the flush so the pipe-ingest task can win the actor race
+        // on a loaded host; the first successful flush emits the row.
+        var flushed = false
+        for _ in 0..<50 {
+            await pm.flushPartialLine(id: "t11")
+            if box.events.contains(where: { if case .jsonRow = $0 { return true }; return false }) {
+                flushed = true
+                break
+            }
+            try await Task.sleep(for: .milliseconds(20))
+        }
+        #expect(flushed)
+        await pm.kill(id: "t11")
+        #expect(await waitForExit(in: box))
+        observer.cancel()
+        let events = box.events
+        let rows = events.compactMap { e -> String? in
+            if case .jsonRow(_, let d) = e { return String(decoding: d, as: UTF8.self) }
+            return nil
+        }
+        #expect(rows == ["{\"row\":9}"])
+        // Prefixed tails must not leak into stdout, even via finalize.
+        #expect(!events.contains(.stdout(id: "t11", line: "ROW_COLORS_JSON: {\"row\":9}")))
+        #expect(exitCount(in: box) == 1)
+    }
+
+    @Test func unterminatedRowTailFinalizesAsJSONRow() async throws {
+        let pm = ProcessManager()
+        let bin = try script(
+            "row-tail.sh",
+            "#!/bin/sh\nprintf 'ROW_COLORS_JSON: {\"row\":42}'\n"
+        )
+        let box = Box()
+        let observer = observe(pm, id: "t12", into: box)
+        try await pm.runStreaming(id: "t12", binary: bin, arguments: [])
+        #expect(await waitForExit(in: box))
+        observer.cancel()
+        let events = box.events
+        let rows = events.compactMap { e -> String? in
+            if case .jsonRow(_, let d) = e { return String(decoding: d, as: UTF8.self) }
+            return nil
+        }
+        #expect(rows == ["{\"row\":42}"])
+        #expect(!events.contains(.stdout(id: "t12", line: "ROW_COLORS_JSON: {\"row\":42}")))
+        let rowIndex = events.firstIndex {
+            if case .jsonRow = $0 { return true }; return false
+        }
+        let exitIndexes = events.indices.filter {
+            if case .exit = events[$0] { return true }; return false
+        }
+        #expect(exitIndexes.count == 1)
+        if let rowIndex, let exitIndex = exitIndexes.first {
+            #expect(rowIndex < exitIndex)
+        } else {
+            Issue.record("expected a jsonRow before the exit event")
+        }
+    }
+
+    @Test func fastStreamingExitEmitsExactlyOneExit() async throws {
+        let pm = ProcessManager()
+        let bin = try script("fast-stream.sh", "#!/bin/sh\nexit 0\n")
+        let box = Box()
+        let observer = observe(pm, id: "t13", into: box)
+        try await pm.runStreaming(id: "t13", binary: bin, arguments: [])
+        #expect(await waitForExit(in: box))
+        // The grace window must outlast the 2 s finalize watchdog so a
+        // duplicate emission from it would be observed.
+        try await Task.sleep(for: .milliseconds(2500))
+        observer.cancel()
+        #expect(box.events == [.exit(id: "t13", code: 0)])
+    }
+
+    @Test func fastCapturedExitEmitsExactlyOneExit() async throws {
+        let pm = ProcessManager()
+        let bin = try script("fast-cap.sh", "#!/bin/sh\nexit 7\n")
+        let box = Box()
+        let observer = observe(pm, id: "t14", into: box)
+        let result = try await pm.runCaptured(id: "t14", binary: bin, arguments: [])
+        #expect(result.exitCode == 7)
+        // Both the termination handler and the waitUntilExit watchdog
+        // resume the same box; give the slower path time to fire.
+        try await Task.sleep(for: .milliseconds(500))
+        observer.cancel()
+        #expect(box.events == [.exit(id: "t14", code: 7)])
+    }
+
+    @Test func capturedRunSetsArgyllNotInteractive() async throws {
+        let pm = ProcessManager()
+        let bin = try script(
+            "cap-env.sh",
+            "#!/bin/sh\necho \"ANI=$ARGYLL_NOT_INTERACTIVE\"\n"
+        )
+        let result = try await pm.runCaptured(id: "t15", binary: bin, arguments: [])
+        #expect(result.stdout == "ANI=1\n")
+    }
+
+    @Test func killAllTerminatesStreamingAndCapturedChildren() async throws {
+        let pm = ProcessManager()
+        let marker = Self.fixtureDir
+            .appendingPathComponent("mixed-cap-ready-\(UUID().uuidString)")
+        let slowBin = try script("mixed-slow.sh", "#!/bin/sh\nsleep 30\n")
+        let capBin = try script("mixed-cap.sh", "#!/bin/sh\ntouch \"$1\"\nsleep 30\n")
+        let streamBox = Box()
+        let capBox = Box()
+        let streamObserver = observe(pm, id: "t16", into: streamBox)
+        let capObserver = observe(pm, id: "t17", into: capBox)
+        try await pm.runStreaming(id: "t16", binary: slowBin, arguments: [])
+        let capTask = Task {
+            try await pm.runCaptured(id: "t17", binary: capBin, arguments: [marker.path])
+        }
+        #expect(await waitForFile(marker))
+        #expect(await waitForRunning(pm, id: "t16"))
+        #expect(await waitForRunning(pm, id: "t17"))
+        #expect(await pm.killAll() == 2)
+        _ = try await capTask.value
+        #expect(await waitForExit(in: streamBox))
+        #expect(await waitForExit(in: capBox))
+        // Grace window outlasts the streaming finalize watchdog.
+        try await Task.sleep(for: .milliseconds(2500))
+        streamObserver.cancel()
+        capObserver.cancel()
+        #expect(!(await pm.isRunning("t16")))
+        #expect(!(await pm.isRunning("t17")))
+        #expect(exitCount(in: streamBox) == 1)
+        #expect(exitCount(in: capBox) == 1)
+    }
 }
 
 @Suite("ProcessLineDecoder")

Tests/ICCeryCoreTests/ProcessRunSupportTests.swift

@@ -0,0 +1,67 @@
+import Foundation
+import Testing
+@testable import ICCery
+
+/// Direct contracts for the shared logged-run helper (issue #80).
+///
+/// `runLogged` owns the running-flag transition (`false → true → false`)
+/// and the log-reset decision; these tests pin both sides of the
+/// contract plus the coalesced `@MainActor` log hop.
+@Suite("ProcessRunSupport runLogged")
+@MainActor
+struct ProcessRunSupportTests {
+
+    private struct SentinelError: Error {}
+
+    @Test("Success: running transitions [true, false], log resets once, batches reach the main actor, value preserved")
+    func successTransitions() async throws {
+        var running: [Bool] = []
+        var resets = 0
+        var received: [String] = []
+
+        let result = try await ProcessRunSupport.runLogged(
+            setRunning: { running.append($0) },
+            resetLog: { resets += 1 },
+            onLog: { batch in
+                MainActor.assertIsolated()
+                received.append(contentsOf: batch)
+            }
+        ) { onLog in
+            onLog(["alpha", "beta"])
+            return 42
+        }
+
+        #expect(result == 42)
+        #expect(running == [true, false])
+        #expect(resets == 1)
+
+        // The sink hops back through a main-actor Task; yield until the
+        // coalesced batch lands.
+        for _ in 0..<200 where received.isEmpty {
+            try await Task.sleep(for: .milliseconds(10))
+        }
+        #expect(received == ["alpha", "beta"])
+    }
+
+    @Test("Failure: running still transitions [true, false], log resets once, error is rethrown")
+    func failureTransitions() async throws {
+        var running: [Bool] = []
+        var resets = 0
+
+        do {
+            _ = try await ProcessRunSupport.runLogged(
+                setRunning: { running.append($0) },
+                resetLog: { resets += 1 },
+                onLog: { _ in }
+            ) { _ -> Int in
+                throw SentinelError()
+            }
+            Issue.record("Expected runLogged to rethrow")
+        } catch is SentinelError {
+            // Expected path.
+        }
+
+        #expect(running == [true, false])
+        #expect(resets == 1)
+    }
+}

Tests/ICCeryCoreTests/SettingsTests.swift

@@ -93,6 +93,28 @@ struct SettingsStoreTests {
         #expect(!FileManager.default.fileExists(atPath: url.path))
     }
 
+    @Test func invalidSaveOverValidFilePreservesBytesAndPostsNothing() throws {
+        let url = tempStoreURL()
+        let store = SettingsStore(fileURL: url)
+        var valid = AppSettings.default
+        valid.deltaEGoodMax = 1.5
+        try store.save(valid)
+        let originalBytes = try Data(contentsOf: url)
+
+        var fired = false
+        let token = NotificationCenter.default.addObserver(
+            forName: SettingsStore.settingsDidChange, object: nil, queue: nil
+        ) { _ in fired = true }
+        defer { NotificationCenter.default.removeObserver(token) }
+
+        var invalid = AppSettings.default
+        invalid.deltaEGoodMax = 9.0
+        #expect(throws: SettingsStore.SettingsError.self) { try store.save(invalid) }
+        #expect(try Data(contentsOf: url) == originalBytes)
+        #expect(!fired)
+        #expect(store.load() == valid)
+    }
+
     @Test func savePostsNotification() async throws {
         let url = tempStoreURL()
         let store = SettingsStore(fileURL: url)

Tests/ICCeryCoreTests/TargenTests.swift

@@ -162,6 +162,34 @@ struct TargenArgsTests {
         #expect(!args.contains("-p"))
     }
 
+    @Test("Whitespace-only preconditioning profile emits no -c")
+    func whitespacePreconditioner() throws {
+        let config = TargenConfig(
+            colourSpace: .rgb,
+            patchCount: 800,
+            whitePatches: 4,
+            blackPatches: 4,
+            preconditioningProfile: "   \n\t  ",
+            basename: "ws_pre"
+        )
+        let args = try TargenArgs.build(config: config)
+        #expect(!args.contains("-c"))
+    }
+
+    @Test("Preconditioning profile is trimmed before emission")
+    func preconditionerTrimmed() throws {
+        let config = TargenConfig(
+            colourSpace: .rgb,
+            patchCount: 800,
+            whitePatches: 4,
+            blackPatches: 4,
+            preconditioningProfile: "  /path/to/profile.icc  ",
+            basename: "trim_pre"
+        )
+        let args = try TargenArgs.build(config: config)
+        #expect(args[args.firstIndex(of: "-c")! + 1] == "/path/to/profile.icc")
+    }
+
     @Test("Invalid basename throws")
     func invalidBasenameThrows() {
         let config = TargenConfig(
@@ -262,7 +290,7 @@ struct ArgyllRunnerTargenTests {
         #expect(ti1URL.lastPathComponent == "mock_test.ti1")
     }
 
-    @Test("Failed targen execution throws processFailed")
+    @Test("Failed targen execution throws toolFailed")
     func failedTargenExecution() async throws {
         let tempDir = FileManager.default.temporaryDirectory.appendingPathComponent(UUID().uuidString)
         try FileManager.default.createDirectory(at: tempDir, withIntermediateDirectories: true)
@@ -290,7 +318,8 @@ struct ArgyllRunnerTargenTests {
             workingDirectory: tempDir
         )
 
-        await #expect(throws: ArgyllRunnerError.self) {
+        await #expect(throws: ArgyllRunnerError.toolFailed(
+            tool: "targen", code: 1, logs: ["Error: something went wrong"])) {
             try await runner.runTargen(config: config)
         }
     }
@@ -323,7 +352,8 @@ struct ArgyllRunnerTargenTests {
             workingDirectory: tempDir
         )
 
-        await #expect(throws: ArgyllRunnerError.self) {
+        await #expect(throws: ArgyllRunnerError.missingArtefact(
+            tempDir.appendingPathComponent("no_file.ti1").path)) {
             try await runner.runTargen(config: config)
         }
     }

Tests/ICCeryCoreTests/TargetWorkflowViewModelTests.swift

@@ -0,0 +1,42 @@
+import Foundation
+import Testing
+@testable import ICCeryCore
+@testable import ICCery
+
+/// Dataset-import error contracts through the
+/// `importMeasurementDataset(from:)` seam (issue #80): parser and I/O
+/// failures must surface identically as a single `.error` Notice.
+@Suite("TargetWorkflowViewModel dataset import")
+@MainActor
+struct TargetWorkflowViewModelTests {
+
+    @Test("Malformed content (CGATSParseError) produces one .error notice prefixed 'Import failed:'")
+    func malformedDatasetNotice() throws {
+        let env = try TestAppEnvironment.make()
+        defer { env.cleanup() }
+        let vm = TargetWorkflowViewModel(environment: env.environment)
+
+        let bad = env.root.appendingPathComponent("broken.ti3")
+        try Data("this is not CGATS data".utf8).write(to: bad)
+
+        vm.importMeasurementDataset(from: bad)
+
+        let notice = try #require(vm.wizard.notice)
+        #expect(notice.kind == .error)
+        #expect(notice.text.hasPrefix("Import failed:"))
+    }
+
+    @Test("Missing file (CocoaError) produces one .error notice prefixed 'Import failed:'")
+    func missingDatasetNotice() throws {
+        let env = try TestAppEnvironment.make()
+        defer { env.cleanup() }
+        let vm = TargetWorkflowViewModel(environment: env.environment)
+
+        let missing = env.root.appendingPathComponent("does-not-exist.ti3")
+        vm.importMeasurementDataset(from: missing)
+
+        let notice = try #require(vm.wizard.notice)
+        #expect(notice.kind == .error)
+        #expect(notice.text.hasPrefix("Import failed:"))
+    }
+}

Tests/ICCeryCoreTests/TestAppEnvironment.swift

@@ -0,0 +1,62 @@
+import Testing
+import Foundation
+@testable import ICCeryCore
+@testable import ICCery
+
+/// Shared app-test dependency factory (issue #82).
+///
+/// Every store is pointed at a unique temporary directory so tests never
+/// read or write the user's real Application Support tree, and a fresh
+/// `ProcessManager` keeps child-process state isolated per test. The
+/// global process environment is never mutated.
+struct TestAppEnvironment {
+
+    /// Root temp directory holding all per-test state files.
+    let root: URL
+    let environment: AppEnvironment
+
+    var settingsURL: URL { root.appendingPathComponent("settings.json") }
+    var stateURL: URL { root.appendingPathComponent("wizard_state.json") }
+    var historyURL: URL {
+        root.appendingPathComponent("verification_history.json")
+    }
+
+    /// Creates an isolated environment under `NSTemporaryDirectory()`.
+    /// Call `cleanup()` when finished.
+    static func make() throws -> TestAppEnvironment {
+        let root = FileManager.default.temporaryDirectory
+            .appendingPathComponent("iccery-test-env-\(UUID().uuidString)")
+        try FileManager.default.createDirectory(
+            at: root, withIntermediateDirectories: true
+        )
+
+        let processManager = ProcessManager()
+        let settingsStore = SettingsStore(
+            fileURL: root.appendingPathComponent("settings.json")
+        )
+        let environment = AppEnvironment(
+            stateStore: WizardStateStore(
+                fileURL: root.appendingPathComponent("wizard_state.json")
+            ),
+            settingsStore: settingsStore,
+            presetStore: PresetStore(settingsStore: settingsStore),
+            runner: ArgyllRunner(
+                processManager: processManager,
+                binaryResolver: BinaryResolver(overrideDir: nil)
+            ),
+            cupsService: CupsService(
+                processManager: processManager,
+                binaryDir: root.appendingPathComponent("cups-bin")
+            ),
+            historyStore: VerificationHistoryStore(
+                url: root.appendingPathComponent("verification_history.json")
+            )
+        )
+        return TestAppEnvironment(root: root, environment: environment)
+    }
+
+    /// Removes the temporary root directory.
+    func cleanup() {
+        try? FileManager.default.removeItem(at: root)
+    }
+}

Tests/ICCeryCoreTests/VerificationHistoryStoreTests.swift

@@ -131,6 +131,57 @@ struct VerificationHistoryStoreTests {
         }
     }
 
+    @Test("Clear does not overwrite an unparseable file")
+    func clearPreservesUnparseableFile() async {
+        let fm = FileManager.default
+        let tmp = fm.temporaryDirectory.appendingPathComponent(UUID().uuidString)
+        try? fm.createDirectory(at: tmp, withIntermediateDirectories: true)
+        let url = tmp.appendingPathComponent("verification_history.json")
+
+        let badJSON = "not json"
+        try? badJSON.write(to: url, atomically: true, encoding: .utf8)
+
+        let store = VerificationHistoryStore(url: url)
+        do {
+            try await store.clear()
+            Issue.record("clear() should propagate the load error")
+        } catch {
+            let contents = try? String(contentsOf: url, encoding: .utf8)
+            #expect(contents == badJSON)
+        }
+    }
+
+    @Test("ISO-8601 timestamps round-trip through a fresh store")
+    func iso8601RoundTrip() async throws {
+        let fm = FileManager.default
+        let tmp = fm.temporaryDirectory.appendingPathComponent(UUID().uuidString)
+        try fm.createDirectory(at: tmp, withIntermediateDirectories: true)
+        let url = tmp.appendingPathComponent("verification_history.json")
+
+        let timestamp = Date(timeIntervalSince1970: 1_700_000_000)
+        let record = VerificationRecord(
+            id: "vr-iso",
+            profileName: "p",
+            printerName: "",
+            avgDE: 1.0,
+            maxDE: 2.0,
+            rmsDE: 1.5,
+            patchCount: 1,
+            status: .good,
+            timestamp: timestamp
+        )
+        let store1 = VerificationHistoryStore(url: url)
+        _ = try await store1.append(record)
+
+        let text = try String(contentsOf: url, encoding: .utf8)
+        #expect(text.contains(ISO8601DateFormatter().string(from: timestamp)))
+
+        let store2 = VerificationHistoryStore(url: url)
+        let loaded = try await store2.load()
+        #expect(loaded.count == 1)
+        #expect(loaded.first?.timestamp == timestamp)
+    }
+
     @Test("CSV export quoting")
     func csvQuoting() async throws {
         let fm = FileManager.default

Tests/ICCeryCoreTests/WizardGatingTests.swift

@@ -117,6 +117,17 @@ struct WizardStateStoreTests {
         #expect(WizardStateStore(fileURL: url).load().stage == .generate)
     }
 
+    @Test func corruptJsonReturnsDefaultAndKeepsBytes() throws {
+        let url = tempURL()
+        try FileManager.default.createDirectory(
+            at: url.deletingLastPathComponent(), withIntermediateDirectories: true
+        )
+        try "not json".write(to: url, atomically: true, encoding: .utf8)
+        #expect(WizardStateStore(fileURL: url).load() == .default)
+        let kept = try String(contentsOf: url, encoding: .utf8)
+        #expect(kept == "not json")
+    }
+
     @Test func sessionModeCalibrationRoundTrips() throws {
         var s = WizardState(sessionMode: .calibration)
         let data = try JSONEncoder().encode(s)

Tests/ICCeryUITests/Milestone2UITests.swift

@@ -133,6 +133,18 @@ final class Milestone2UITests: XCTestCase {
         XCTAssertTrue(element("targenInkLimitGroup").waitForExistence(timeout: 5))
     }
 
+    /// Stage 1/2 process-log containers resolve under the shared
+    /// `ProcessLogView` identifiers (issue #80).
+    func testProcessLogContainersResolve() throws {
+        launchApp()
+        XCTAssertTrue(waitFor("targenLogContainer").exists)
+
+        app.buttons["btnBrowse"].click()
+        app.buttons["btnGenerate"].click()
+        XCTAssertTrue(waitFor("btnCreateLayout", timeout: 20).exists)
+        XCTAssertTrue(element("printtargLogContainer").exists)
+    }
+
     /// Fixture-backed targen run creates .ti1 and unlocks Stage 2.
     func testTargenFixtureUnlocksStage2() throws {
         launchApp()

Tests/ICCeryUITests/Milestone3UITests.swift

@@ -146,6 +146,8 @@ final class Milestone3UITests: XCTestCase {
         XCTAssertTrue(notice.waitForExistence(timeout: 10))
         XCTAssertTrue((notice.value as? String ?? "")
             .contains("cancelled"))
+        // Cancellation is informational, never an error (#80).
+        XCTAssertEqual(element("printNotificationIcon").value as? String, "info")
     }
 
     /// Preferences OK → captured options are replayed verbatim in the
@@ -214,6 +216,8 @@ final class Milestone3UITests: XCTestCase {
         let notice = app.staticTexts.containing(predicate).firstMatch
         XCTAssertTrue(notice.waitForExistence(timeout: 10))
         XCTAssertTrue(notice.label.contains("Print failed"))
+        // Spool failure exposes the .error kind on the icon (#80).
+        XCTAssertEqual(element("printNotificationIcon").value as? String, "error")
     }
 
     /// wizardState.printerName records the queue used for spooling (#95).

Tests/ICCeryUITests/Milestone4UITests.swift

@@ -140,4 +140,57 @@ final class Milestone4UITests: XCTestCase {
         }
         XCTAssertTrue(FileManager.default.fileExists(atPath: ti3.path))
     }
+
+    /// Two passes + a failing `average` run promote pass 1 to the
+    /// canonical .ti3 and show the sticky finish error notice via
+    /// `chartreadFinishNotice` (issue #80).
+    func testTwoPassAverageFailurePromotesFirstPass() throws {
+        app.launchEnvironment["MOCK_AVERAGE_FAIL"] = "1"
+        reachStage3()
+
+        app.buttons["btnDetectInstruments"].click()
+        _ = waitFor("chartreadInstrumentSelect", timeout: 20)
+
+        driveOnePass(startButton: "btnStartRead")
+        _ = waitFor("chartreadAveragingPanel", timeout: 20)
+
+        driveOnePass(startButton: "btnMeasureAnotherSheet")
+
+        XCTAssertTrue(waitFor("btnFinishAndAverage", timeout: 20).exists)
+        app.buttons["btnFinishAndAverage"].click()
+
+        // Averaging failed → pass 1 is promoted to the canonical .ti3
+        // and the sticky error notice stays on Stage 3.
+        let ti3 = workDir.appendingPathComponent("mytarget.ti3")
+        let deadline = Date().addingTimeInterval(20)
+        while Date() < deadline, !FileManager.default.fileExists(atPath: ti3.path) {
+            RunLoop.current.run(until: Date().addingTimeInterval(0.2))
+        }
+        XCTAssertTrue(FileManager.default.fileExists(atPath: ti3.path))
+
+        let notice = element("chartreadFinishNotice")
+        XCTAssertTrue(notice.waitForExistence(timeout: 10))
+        XCTAssertEqual(notice.value as? String, "error")
+    }
+
+    /// Runs the mock handheld chartread session to completion
+    /// (start → calibrate → strip A → strip B → Done & Save).
+    private func driveOnePass(startButton: String) {
+        let start = app.buttons[startButton]
+        XCTAssertTrue(start.waitForExistence(timeout: 10))
+        let deadline = Date().addingTimeInterval(10)
+        while Date() < deadline, !start.isEnabled {
+            RunLoop.current.run(until: Date().addingTimeInterval(0.1))
+        }
+        XCTAssertTrue(start.isEnabled)
+        start.click()
+        _ = waitFor("btnCalibrate", timeout: 25)
+        app.buttons["btnCalibrate"].click()
+        _ = waitFor("btnTrigger", timeout: 20)
+        app.buttons["btnTrigger"].click()
+        _ = waitFor("btnTrigger", timeout: 20)
+        app.buttons["btnTrigger"].click()
+        _ = waitFor("btnDoneRead", timeout: 20)
+        app.buttons["btnDoneRead"].firstMatch.click()
+    }
 }

Tests/ICCeryUITests/Milestone5UITests.swift

@@ -111,4 +111,21 @@ final class Milestone5UITests: XCTestCase {
             "Expected verification status, got '\(statusValue)'"
         )
     }
+
+    /// A failing colprof run surfaces through the session-wide wizard
+    /// notice only — no duplicate stage-local error view (issue #80).
+    func testProfileFailureShowsWizardNotice() throws {
+        app.launchEnvironment["ICCERY_MOCK_COLPROF_EXIT"] = "2"
+        launchApp()
+
+        let create = waitFor("btnCreateProfile")
+        XCTAssertTrue(create.isEnabled)
+        create.click()
+
+        let notice = element("noticeText")
+        XCTAssertTrue(notice.waitForExistence(timeout: 20))
+        XCTAssertTrue((notice.value as? String ?? "")
+            .contains("Profile creation failed"))
+        XCTAssertFalse(element("colprofLastError").exists)
+    }
 }

Tests/ICCeryUITests/Milestone6CalibrationUITests.swift

@@ -77,4 +77,59 @@ final class Milestone6CalibrationUITests: XCTestCase {
         let layout = app.buttons["btnCreateLayout"]
         XCTAssertTrue(layout.waitForExistence(timeout: 25))
     }
+
+    /// A failing calibration targen surfaces the error through the
+    /// wizard notice and restores the original basename (issue #80).
+    func testCalibrationTargenFailureRestoresBasename() throws {
+        let testRoot = FileManager.default.temporaryDirectory
+            .appendingPathComponent("cal-fail-\(UUID().uuidString)")
+        let appData = testRoot.appendingPathComponent("AppData")
+        try FileManager.default.createDirectory(
+            at: appData, withIntermediateDirectories: true)
+        defer { try? FileManager.default.removeItem(at: testRoot) }
+
+        // Pre-stage wizard state so the failing mock targen is only
+        // exercised by the calibration run, not target generation.
+        let state: [String: Any] = [
+            "currentStage": 1,
+            "basename": "DemoTarget",
+            "cwd": testWorkDir.path,
+            "sessionMode": "profile",
+            "calibrationOriginalBasename": ""
+        ]
+        let stateURL = appData.appendingPathComponent("wizard_state.json")
+        try JSONSerialization.data(withJSONObject: state).write(to: stateURL)
+
+        app.terminate()
+        app.launchEnvironment["ICCERY_TEST_ROOT"] = testRoot.path
+        app.launchEnvironment["ICCERY_MOCK_TARGEN_EXIT"] = "2"
+        app.launch()
+
+        let calButton = app.buttons["btnCalibratePrinter"]
+        XCTAssertTrue(calButton.waitForExistence(timeout: 10))
+        calButton.tap()
+
+        let calGenerate = app.buttons["btnCalGenerate"]
+        XCTAssertTrue(calGenerate.waitForExistence(timeout: 10))
+        calGenerate.tap()
+
+        let notice = app.descendants(matching: .any)["noticeText"]
+        XCTAssertTrue(notice.waitForExistence(timeout: 20))
+        XCTAssertTrue((notice.value as? String ?? "")
+            .contains("Calibration target failed"))
+
+        // The pre-CAL_ basename is restored and persisted.
+        let deadline = Date().addingTimeInterval(10)
+        var restoredBasename: String?
+        while Date() < deadline {
+            if let data = try? Data(contentsOf: stateURL),
+               let object = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
+               let basename = object["basename"] as? String {
+                restoredBasename = basename
+                if basename == "DemoTarget" { break }
+            }
+            RunLoop.current.run(until: Date().addingTimeInterval(0.1))
+        }
+        XCTAssertEqual(restoredBasename, "DemoTarget")
+    }
 }

scripts/attach-release-asset.sh

@@ -0,0 +1,103 @@
+#!/bin/sh
+# scripts/attach-release-asset.sh
+#
+# Attach ICCery-*.dmg to the Gitea release for the current tag.
+# actions/upload-artifact only stores a workflow artifact; it does not
+# publish a release asset (run 29714 left v2.0.0-pre2-grok with no files).
+
+set -eu
+
+ROOT="$(CDPATH='' cd -- "$(dirname -- "$0")/.." && pwd)"
+cd "$ROOT"
+
+TOKEN="${GITEA_TOKEN:-${GITHUB_TOKEN:-}}"
+if [ -z "$TOKEN" ]; then
+    echo "error: GITEA_TOKEN or GITHUB_TOKEN is required to attach release assets" >&2
+    exit 1
+fi
+
+SERVER="${GITEA_SERVER_URL:-${GITHUB_SERVER_URL:-https://git.i3omb.com}}"
+SERVER="${SERVER%/}"
+API="$SERVER/api/v1"
+
+REPO="${GITHUB_REPOSITORY:-gronod/iccery-v2-mac}"
+TAG="${RELEASE_TAG:-${GITHUB_REF_NAME:-}}"
+if [ -z "$TAG" ] && [ -n "${GITHUB_REF:-}" ]; then
+    TAG="${GITHUB_REF#refs/tags/}"
+fi
+if [ -z "$TAG" ] || [ "$TAG" = "${GITHUB_REF:-}" ]; then
+    echo "error: no release tag (set RELEASE_TAG or GITHUB_REF_NAME)" >&2
+    exit 1
+fi
+
+DMG="${1:-}"
+if [ -z "$DMG" ]; then
+    DMG="$(ls -1 ICCery-*.dmg 2>/dev/null | head -n 1 || true)"
+fi
+if [ -z "$DMG" ] || [ ! -f "$DMG" ]; then
+    echo "error: no ICCery-*.dmg to attach" >&2
+    exit 1
+fi
+NAME="$(basename "$DMG")"
+
+echo "==> Resolving release $TAG"
+HTTP="$(mktemp)"
+BODY="$(mktemp)"
+STATUS="$(curl -sS -o "$BODY" -w '%{http_code}' \
+    -H "Authorization: token $TOKEN" \
+    -H "Accept: application/json" \
+    "$API/repos/$REPO/releases/tags/$TAG" || true)"
+
+if [ "$STATUS" = "404" ]; then
+    echo "==> Creating release $TAG"
+    STATUS="$(curl -sS -o "$BODY" -w '%{http_code}' \
+        -H "Authorization: token $TOKEN" \
+        -H "Content-Type: application/json" \
+        -X POST "$API/repos/$REPO/releases" \
+        -d "{\"tag_name\":\"$TAG\",\"name\":\"$TAG\",\"prerelease\":true,\"target_commitish\":\"${GITHUB_SHA:-}\"}")"
+fi
+if [ "$STATUS" != "200" ] && [ "$STATUS" != "201" ]; then
+    echo "error: could not load/create release $TAG (HTTP $STATUS)" >&2
+    cat "$BODY" >&2
+    exit 1
+fi
+
+RELEASE_ID="$(python3 -c 'import json,sys; print(json.load(open(sys.argv[1])).get("id",""))' "$BODY")"
+if [ -z "$RELEASE_ID" ]; then
+    echo "error: release JSON missing id" >&2
+    cat "$BODY" >&2
+    exit 1
+fi
+
+# Replace a same-named asset so retags stay idempotent.
+python3 - "$BODY" "$NAME" > "$HTTP" <<'PY'
+import json, sys
+rel = json.load(open(sys.argv[1]))
+want = sys.argv[2]
+for a in rel.get("assets") or []:
+    if a.get("name") == want:
+        print(a.get("id", ""))
+        break
+PY
+EXISTING="$(cat "$HTTP")"
+if [ -n "$EXISTING" ]; then
+    echo "==> Replacing existing asset $NAME ($EXISTING)"
+    curl -sS -o /dev/null -w '%{http_code}\n' \
+        -H "Authorization: token $TOKEN" \
+        -X DELETE "$API/repos/$REPO/releases/$RELEASE_ID/assets/$EXISTING" >/dev/null || true
+fi
+
+echo "==> Uploading $NAME to release $RELEASE_ID"
+STATUS="$(curl -sS -o "$BODY" -w '%{http_code}' \
+    -H "Authorization: token $TOKEN" \
+    -H "Accept: application/json" \
+    -F "attachment=@$DMG;filename=$NAME" \
+    "$API/repos/$REPO/releases/$RELEASE_ID/assets?name=$NAME")"
+
+if [ "$STATUS" != "201" ]; then
+    echo "error: asset upload failed (HTTP $STATUS)" >&2
+    cat "$BODY" >&2
+    exit 1
+fi
+echo "Attached $NAME to $SERVER/$REPO/releases/tag/$TAG"
+rm -f "$HTTP" "$BODY"