adding cache

.github/workflows/coverage.yml

@@ -6,22 +6,26 @@ on:
   pull_request:
 env:
   RUSTFLAGS: "-D warnings"
+
 jobs:
   coverage:
     runs-on: ${{ matrix.platform }}
     name: "${{ matrix.example }} - ${{ matrix.platform }}"
     strategy:
       matrix:
-        platform: [ubuntu-latest]
+        platform: [macos-latest]
         toolchain: [stable]
     steps:
       - uses: actions/checkout@v3
-      - name: Install LLVM
+      - name: Install Homebrew
         run: |
-          sudo apt-get update
-          sudo apt-get install -y llvm clang
+          /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+      - name: Install LLVM
+        run: brew install llvm
+      - name: Add LLVM to PATH
+        run: echo "/opt/homebrew/opt/llvm/bin" >> $GITHUB_PATH
       - name: Install cargo-llvm-cov
-        run: cargo install cargo-llvm-cov
+        run: brew install cargo-llvm-cov
       - name: Llvm version
         run: llvm-config --version
       - name: Clang version
@@ -34,6 +38,7 @@ jobs:
           target: wasm32-unknown-unknown
       - name: Set Default Toolchain
         run: rustup override set ${{ matrix.toolchain }}
+      - uses: Swatinem/rust-cache@v1
       - name: Rust version
         run: rustc --version --verbose
       - name: Add rust-src component
@@ -48,4 +53,4 @@ jobs:
           fail_ci_if_error: true
           files: ./llvm-cov-output.lcov
           token: ${{ secrets.CODECOV_TOKEN }}
-          verbose: true
+          verbose: true