chore(m9): retarget project spec, CI, and core syntax to macOS 12 / Swift 5.7

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

.gitea/workflows/macos.yml

@@ -14,13 +14,21 @@ jobs:
   build-and-test:
     # Prefer a self-hosted Mac runner if your Gitea has one. If not,
     # macos-14 works for this pipeline.
-    runs-on: macos-14
+    runs-on: macos-12
     env:
       DERIVED: build/DerivedData-test
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Assert Xcode 14 toolchain
+        run: xcodebuild -version | grep -E "Xcode 14." || (echo "Unexpected Xcode version" && exit 1)
+
+      - name: Ensure host tools
+        run: |
+          command -v xcodegen || brew install xcodegen
+          python3 -c "import dmgbuild" 2>/dev/null || pip3 install dmgbuild
+
       - name: Generate Xcode project
         run: xcodegen generate --spec project.yml
 
@@ -120,7 +128,7 @@ jobs:
 
   package:
     needs: build-and-test
-    runs-on: macos-14
+    runs-on: macos-12
     if: github.ref == 'refs/heads/develop' || startsWith(github.ref, 'refs/tags/v')
     steps:
       - name: Checkout

Packages/ICCeryCore/Package.swift

@@ -1,9 +1,9 @@
-// swift-tools-version: 6.0
+// swift-tools-version: 5.7
 import PackageDescription
 
 let package = Package(
     name: "ICCeryCore",
-    platforms: [.macOS(.v14)],
+    platforms: [.macOS(.v12)],
     products: [
         .library(name: "ICCeryCore", targets: ["ICCeryCore"]),
     ],

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

@@ -200,7 +200,7 @@ public struct ArgyllRunner: Sendable {
         await processManager.kill(id: id)
         var attempts = 0
         while await processManager.isRunning(id), attempts < 30 {
-            try? await Task.sleep(for: .milliseconds(100))
+            try? await Task.sleep(nanoseconds: 100_000_000)
             attempts += 1
         }
     }
@@ -243,7 +243,7 @@ public struct ArgyllRunner: Sendable {
         if flushPartialLines {
             dotFlushTask = Task { [processManager] in
                 while !Task.isCancelled {
-                    try? await Task.sleep(for: .milliseconds(500))
+                    try? await Task.sleep(nanoseconds: 500_000_000)
                     if Task.isCancelled { break }
                     await processManager.flushPartialLine(id: processId)
                 }
@@ -592,7 +592,7 @@ public struct ArgyllRunner: Sendable {
                 await processManager.setPreKillHook(id: processId) { [processManager] in
                     if isXY {
                         try? await processManager.sendStdin(id: processId, bytes: ChartreadInput.quit.bytes)
-                        try? await Task.sleep(for: .milliseconds(500))
+                        try? await Task.sleep(nanoseconds: 500_000_000)
                     }
                 }
 

Packages/ICCeryCore/Sources/ICCeryCore/CGATS/CGATSParser.swift

@@ -72,7 +72,7 @@ public enum CGATSParser {
     public static func parse(
         _ contents: String,
         sourceURL: URL? = nil
-    ) throws(CGATSParseError) -> CGATSDataset {
+    ) throws -> CGATSDataset {
         guard !contents.isEmpty else { throw .emptyFile }
 
         let ext = sourceURL?.pathExtension.lowercased() ?? ""
@@ -213,7 +213,7 @@ public enum CGATSParser {
     private static func preprocess(
         _ contents: String,
         isCSV: Bool
-    ) throws(CGATSParseError) -> (CGATSFormat, [String]) {
+    ) throws -> (CGATSFormat, [String]) {
         let allLines = contents.components(separatedBy: .newlines)
         var lines = [String]()
 

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

@@ -559,7 +559,7 @@ public actor ProcessManager {
         // Start a watchdog in case the `readabilityHandler` EOFs never
         // arrive after the process exits (e.g. a hung pipe).
         child.finalizeTask = Task { [weak self] in
-            try? await Task.sleep(for: .seconds(2))
+            try? await Task.sleep(nanoseconds: 2_000_000_000)
             guard let self else { return }
             await self.forceKill(id: id)
             await self.forceFinalize(id: id)

Sources/ICCery/SettingsViewModel.swift

@@ -33,7 +33,7 @@ final class SettingsViewModel {
             sink.applySettings(settings)
             savedFlash = true
             Task {
-                try? await Task.sleep(for: .seconds(1.5))
+                try? await Task.sleep(nanoseconds: 1_500_000_000)
                 savedFlash = false
             }
             return true

Sources/ICCery/WizardViewModel.swift

@@ -201,7 +201,7 @@ final class WizardViewModel {
         self.notice = notice
         if let delay = notice.autoHideAfter {
             noticeDismissTask = Task { [weak self] in
-                try? await Task.sleep(for: .seconds(delay))
+                try? await Task.sleep(nanoseconds: UInt64(delay * 1_000_000_000))
                 guard !Task.isCancelled else { return }
                 if self?.notice?.id == notice.id {
                     self?.notice = nil

project.yml

@@ -2,7 +2,7 @@ name: ICCery
 options:
   bundleIdPrefix: com.gronod
   deploymentTarget:
-    macOS: "14.0"
+    macOS: "12.0"
   groupSortPosition: top
 
 packages:
@@ -13,7 +13,7 @@ targets:
   ICCery:
     type: application
     platform: macOS
-    deploymentTarget: "14.0"
+    deploymentTarget: "12.0"
     sources:
       - path: Sources/ICCery
       - path: Resources
@@ -46,7 +46,7 @@ targets:
         PRODUCT_BUNDLE_PACKAGE_TYPE: APPL
         GENERATE_INFOPLIST_FILE: YES
         INFOPLIST_KEY_CFBundleDisplayName: ICCery
-        INFOPLIST_KEY_LSMinimumSystemVersion: "14.0"
+        INFOPLIST_KEY_LSMinimumSystemVersion: "12.0"
         INFOPLIST_KEY_NSPrincipalClass: NSApplication
         INFOPLIST_KEY_NSHumanReadableCopyright: "Copyright © 2026 Gronod. AGPLv3."
         MARKETING_VERSION: "2.0.0"
@@ -58,15 +58,15 @@ targets:
         ENABLE_APP_SANDBOX: NO
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME: AccentColor
-        SWIFT_VERSION: "6.0"
+        SWIFT_VERSION: "5.0"
-        SWIFT_STRICT_CONCURRENCY: complete
+        OTHER_SWIFT_FLAGS: ["$(inherited)", "-strict-concurrency=minimal"]
-        MACOSX_DEPLOYMENT_TARGET: "14.0"
+        MACOSX_DEPLOYMENT_TARGET: "12.0"
         ARCHS: "$(ARCHS_STANDARD)"
 
   ICCeryCoreTests:
     type: bundle.unit-test
     platform: macOS
-    deploymentTarget: "14.0"
+    deploymentTarget: "12.0"
     sources:
       - path: Tests/ICCeryCoreTests
     dependencies:
@@ -79,13 +79,13 @@ targets:
         TEST_HOST: "$(BUILT_PRODUCTS_DIR)/ICCery.app/Contents/MacOS/ICCery"
         GENERATE_INFOPLIST_FILE: YES
         CODE_SIGN_IDENTITY: "-"
-        SWIFT_VERSION: "6.0"
+        SWIFT_VERSION: "5.0"
-        MACOSX_DEPLOYMENT_TARGET: "14.0"
+        MACOSX_DEPLOYMENT_TARGET: "12.0"
 
   ICCeryUITests:
     type: bundle.ui-testing
     platform: macOS
-    deploymentTarget: "14.0"
+    deploymentTarget: "12.0"
     sources:
       - path: Tests/ICCeryUITests
     dependencies:
@@ -95,8 +95,8 @@ targets:
         TEST_TARGET_NAME: ICCery
         GENERATE_INFOPLIST_FILE: YES
         CODE_SIGN_IDENTITY: "-"
-        SWIFT_VERSION: "6.0"
+        SWIFT_VERSION: "5.0"
-        MACOSX_DEPLOYMENT_TARGET: "14.0"
+        MACOSX_DEPLOYMENT_TARGET: "12.0"
 
 schemes:
   ICCery: