Add Wasm CI (#43)

.github/workflows/ci.yml

@@ -14,7 +14,8 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  library:
+  macos:
+    name: macOS
     runs-on: macos-14
     strategy:
       matrix:
@@ -29,15 +30,43 @@ jobs:
       #   run: CONFIG=${{ matrix.config }} make build-for-library-evolution
 
   linux:
+    name: Linux
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         config: ['debug', 'release']
         swift:
           - '5.10'
-    name: Linux (Swift ${{ matrix.swift }})
-    runs-on: ubuntu-latest
     container: swift:${{ matrix.swift }}
     steps:
       - uses: actions/checkout@v4
       - name: Run tests
         run: swift test -c ${{ matrix.config }}
+
+  wasm:
+    name: Wasm
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - toolchain: swift-DEVELOPMENT-SNAPSHOT-2024-07-08-a
+            swift-sdk: swift-wasm-DEVELOPMENT-SNAPSHOT-2024-07-09-a
+    steps:
+      - uses: actions/checkout@v4
+      - uses: bytecodealliance/actions/wasmtime/setup@v1
+      - name: Install Swift and Swift SFK for WebAssembly
+        run: |
+          PREFIX=/opt/swift
+          SWIFT_TOOLCHAIN_TAG="${{ matrix.toolchain }}"
+          SWIFT_SDK_TAG="${{ matrix.swift-sdk }}"
+          set -ex
+          curl -f -o /tmp/swift.tar.gz "https://download.swift.org/development/ubuntu2204/$SWIFT_TOOLCHAIN_TAG/$SWIFT_TOOLCHAIN_TAG-ubuntu22.04.tar.gz"
+          sudo mkdir -p $PREFIX; sudo tar -xzf /tmp/swift.tar.gz -C $PREFIX --strip-component 1
+          $PREFIX/usr/bin/swift experimental-sdk install "https://github.com/swiftwasm/swift/releases/download/$SWIFT_SDK_TAG/$SWIFT_SDK_TAG-wasm32-unknown-wasi.artifactbundle.zip"
+          echo "$PREFIX/usr/bin" >> $GITHUB_PATH
+      - name: Build tests
+        run: swift build --swift-sdk wasm32-unknown-wasi --build-tests -Xlinker -z -Xlinker stack-size=$((1024 * 1024))
+      - name: Run tests
+        run: wasmtime --dir . .build/debug/swift-clocksPackageTests.wasm
+
+