Adding GitHub Actions for XCFrameworks

.github/workflows/xcframeworks.yml

@@ -0,0 +1,102 @@
+name: Build XCFramework and Release
+
+on:
+  push:
+    branches:
+      - xcframeworks
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        arch:
+          - x86_64-apple-darwin
+          - aarch64-apple-darwin
+          - aarch64-apple-ios
+          - aarch64-apple-ios-sim
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          target: ${{ matrix.arch }}
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Modify Cargo.toml to Add Crate Type
+        run: |
+          sed -i.bak '/^\[lib\]/a\
+          crate-type = ["rlib", "staticlib"]
+          ' openmls/Cargo.toml
+
+      - name: Build for ${{ matrix.arch }}
+        run: cargo build --release --target ${{ matrix.arch }} -p openmls --verbose
+
+      - name: List Output Directory
+        run: ls -la target/${{ matrix.arch }}/release/
+
+      - name: Restore Original Cargo.toml
+        run: |
+          mv openmls/Cargo.toml.bak openmls/Cargo.toml
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: libopenmls-${{ matrix.arch }}
+          path: target/${{ matrix.arch }}/release/libopenmls.a
+
+  create_xcframework:
+    runs-on: macos-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download Artifacts
+        uses: actions/download-artifact@v3
+        with:
+          path: artifacts
+
+      - name: Merge iOS Simulator Libraries
+        run: |
+          lipo -create -output artifacts/libopenmls_ios_sim.a \
+            artifacts/libopenmls-aarch64-apple-ios-sim/libopenmls.a \
+            artifacts/libopenmls-x86_64-apple-ios/libopenmls.a
+
+      - name: Create XCFramework
+        run: |
+          xcodebuild -create-xcframework \
+            -library artifacts/libopenmls-x86_64-apple-darwin/libopenmls.a \
+            -library artifacts/libopenmls-aarch64-apple-darwin/libopenmls.a \
+            -library artifacts/libopenmls-aarch64-apple-ios/libopenmls.a \
+            -library artifacts/libopenmls_ios_sim.a \
+            -output openmls.xcframework
+
+      - name: Archive XCFramework
+        run: 7z a -tzip -mx=9 openmls.xcframework.zip openmls.xcframework
+
+  release:
+    runs-on: ubuntu-latest
+    needs: create_xcframework
+    steps:
+      - name: Create GitHub Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.run_number }}
+          release_name: Release ${{ github.run_number }}
+          draft: false
+          prerelease: true
+
+      - name: Upload XCFramework to GitHub Release
+        uses: actions/upload-release-asset@v1
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./openmls.xcframework.zip
+          asset_name: openmls.xcframework.zip
+          asset_content_type: application/zip