Replace clone-swift.sh with git submodule for Swift headers (#217)

Author: Kyle-Ye

.github/actions/checkout-swift-headers/action.yml

@@ -25,15 +25,15 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: ${{ matrix.xcode-version }}
       - name: Set up build environment
         run: Scripts/CI/darwin_setup_build.sh
         shell: bash
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Run tests against Apple's AttributeGraph on macOS via SwiftPM
         run: |
           swift test \

.github/workflows/compatibility_tests.yml

@@ -22,11 +22,11 @@ jobs:
     container: swift:${{ matrix.swift_version }}-jammy
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Set up Linux build environment
         run: Scripts/CI/linux_compute_build.sh
         shell: bash
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build in debug mode
         run: swift build -c debug -Xcc -Wno-elaborated-enum-base
 
@@ -44,12 +44,12 @@ jobs:
       OPENATTRIBUTEGRAPH_OPENATTRIBUTESHIMS_COMPUTE_USE_BINARY: 1
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: ${{ matrix.xcode-version }}
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build in debug mode
         run: swift build -c debug
 
@@ -71,12 +71,12 @@ jobs:
       OPENATTRIBUTEGRAPH_OPENATTRIBUTESHIMS_COMPUTE_USE_BINARY: 1
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: ${{ matrix.xcode-version }}
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build in debug mode on iOS Simulator
         run: |
           xcodebuild build \

.github/workflows/compute.yml

@@ -27,15 +27,15 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: ${{ matrix.xcode-version }}
       - name: Set up build environment
         run: Scripts/CI/darwin_setup_build.sh
         shell: bash
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build in debug mode on iOS
         run: |
           xcodebuild build \

.github/workflows/ios.yml

@@ -23,15 +23,15 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: ${{ matrix.xcode-version }}
       - name: Set up build environment
         run: Scripts/CI/darwin_setup_build.sh
         shell: bash
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build and run tests in debug mode with coverage
         run: |
           swift test \

.github/workflows/macos.yml

@@ -17,12 +17,11 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: "16.4"
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build XCFramework
         run: ./Scripts/build_xcframework.sh
       - name: Compute Checksum

.github/workflows/release.yml

@@ -19,8 +19,8 @@ jobs:
     container: swift:${{ matrix.swift_version }}-jammy
     steps:
       - uses: actions/checkout@v4
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
+        with:
+          submodules: true
       - name: Building and running tests in debug mode with coverage
         run: |
           swift test \

.github/workflows/ubuntu.yml

@@ -19,12 +19,12 @@ jobs:
       GH_TOKEN: ${{ github.token }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: true
       - name: Setup Xcode
         uses: OpenSwiftUIProject/OpenSwiftUI/.github/actions/setup-xcode@main
         with:
           xcode-version: ${{ matrix.xcode-version }}
-      - name: Checkout Swift headers
-        uses: ./.github/actions/checkout-swift-headers
       - name: Build XCFramework
         run: ./Scripts/build_xcframework.sh
       - name: Upload XCFramework

.github/workflows/xcframework.yml

@@ -8,7 +8,8 @@ DerivedData/
 .netrc
 coverage.txt
 TODO.md
-Checkouts/
+Checkouts/*
+!Checkouts/swift
 .ag_template/
 build/
 .ag_repo/

.gitignore

@@ -0,0 +1,4 @@
+[submodule "Checkouts/swift"]
+	path = Checkouts/swift
+	url = https://github.com/OpenSwiftUIProject/swift-runtime-headers.git
+	branch = release/6.1