Build WAT tools

.github/workflows/test.yml

@@ -2,9 +2,50 @@ name: Tests
 on: [ push ]
 
 jobs:
+  build:
+    name: Build WAT tools
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Get WABT commit ID
+        working-directory: tests/unit/artifacts/wabt
+        run: echo "WABT_VERSION=$(git rev-parse HEAD)" >> $GITHUB_ENV
+
+      - name: Cache wabt
+        uses: actions/cache@v4
+        id: cache-wabt
+        with:
+          key: ${{ runner.os }}-wabt-${{ env.WABT_VERSION }}
+          path: tests/unit/artifacts/wabt
+          restore-keys: |
+            ${{ runner.os }}-wabt-
+
+      - name: Build WABT  # Build latest version
+        if: steps.cache-wabt.outputs.cache-hit == false
+        working-directory: tests/unit/artifacts/wabt
+        run: |
+          mkdir build; cd build
+          cmake ..
+          cmake --build .
+
+      - name: Verify wat2wasm
+        run: |
+          echo "WABT=$(readlink -f ./tests/unit/artifacts/wabt/build)" >> $GITHUB_ENV
+          ./tests/unit/artifacts/wabt/build/wat2wasm --version
+
+      - name: Upload built tools
+        uses: actions/upload-artifact@v4
+        with:
+          name: wabt-build-${{ github.run_id }}
+          path: tests/unit/artifacts/wabt/build
+
   unit:
     name: Unit tests
     runs-on: ubuntu-latest
+    needs: build
     strategy:
       fail-fast: false
     if: github.event.pull_request.draft == false
@@ -16,12 +57,22 @@ jobs:
       - name: Prebuild files
         run: npm run test:prebuild
 
+      - name: Download WAT tools
+        uses: actions/download-artifact@v4
+        with:
+          name: wabt-build-${{ github.run_id }}
+          path: .tools
+
+      - name: Add .tools to PATH
+        run: echo "$GITHUB_WORKSPACE/.tools" >> $GITHUB_PATH
+
       - name: Run ava unit tests
         run: npm run test:ava
 
   coverage:
     name: Code coverage
     runs-on: ubuntu-latest
+    needs: build
     strategy:
       fail-fast: true
     if: github.event.pull_request.draft == false
@@ -33,6 +84,15 @@ jobs:
       - name: Prebuild files
         run: npm run test:prebuild
 
+      - name: Download WAT tools
+        uses: actions/download-artifact@v4
+        with:
+          name: wabt-build-${{ github.run_id }}
+          path: .tools
+
+      - name: Add .tools to PATH
+        run: echo "$GITHUB_WORKSPACE/.tools" >> $GITHUB_PATH
+
       - name: Run c8 coverage
         run: |
           echo "LINE_COVERAGE=$(npm run coverage:test:ava | grep -E '^\s*Lines\s*:\s*[0-9]+(\.[0-9]+)?%' | awk '{print $3}' | tr -d '%')" >> $GITHUB_ENV

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "WABT"]
 	path = WABT
-	url = [email protected]:TOPLLab/wabt.git
+	url = [email protected]:TOPLLab/wabt.git
+[submodule "tests/unit/artifacts/wabt"]
+	path = tests/unit/artifacts/wabt
+	url = [email protected]:TOPLLab/wabt.git