update workflow

.github/workflows/general.yml

@@ -18,9 +18,73 @@ env:
   APP_KV_STORE__HOST: redis
 
 jobs:
+  # This job builds and caches artifacts for other jobs to use
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+
+      - name: Install mold linker
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mold clang
+
+      # LONG-TERM CACHE: Cargo registry (shared across workflows)
+      - name: Cache cargo registry
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry/index
+            ~/.cargo/registry/cache
+            ~/.cargo/git/db
+          key: cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            cargo-registry-
+
+      # LONG-TERM CACHE: sqlx-cli binary (shared across workflows)
+      - name: Cache sqlx-cli
+        id: cache-sqlx
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/sqlx
+            ~/.cargo/bin/cargo-sqlx
+          key: sqlx-cli-${{ env.SQLX_VERSION }}
+
+      # LONG-TERM CACHE: Rust toolchain (shared across workflows)
+      # Note: Keep cache: false if it times out, the toolchain itself is cached by rustup
+      - name: Install the Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          cache: false
+
+      - name: Install sqlx-cli
+        if: steps.cache-sqlx.outputs.cache-hit != 'true'
+        run: cargo install sqlx-cli
+          --version=${{ env.SQLX_VERSION }}
+          --features ${{ env.SQLX_FEATURES }}
+          --no-default-features
+          --locked
+
+      # Build the project
+      - name: Build
+        run: cargo build --release
+
+      # WORKFLOW-ONLY CACHE: Upload build artifacts for other jobs
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: build-artifacts
+          path: |
+            target/
+            ~/.cargo/bin/
+
   test:
     name: Test
     runs-on: ubuntu-latest
+    needs: build # Wait for build to complete
     services:
       postgres:
         image: postgres
@@ -37,24 +101,29 @@ jobs:
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4
+
       - name: Install mold linker
         run: |
           sudo apt-get update
           sudo apt-get install -y mold clang
+
+      # Download build artifacts from the build job
+      - name: Download build artifacts
+        uses: actions/download-artifact@v3
+        with:
+          name: build-artifacts
+
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           cache: false
-      - name: Install sqlx-cli
-        run: cargo install sqlx-cli
-          --version=${{ env.SQLX_VERSION }}
-          --features ${{ env.SQLX_FEATURES }}
-          --no-default-features
-          --locked
+
       - name: Migrate database
         run: cargo sqlx migrate run
+
       - name: Run tests
         run: TEST_LOG=true cargo test
+
       - name: Check that queries are fresh
         run: cargo sqlx prepare --check --workspace
 
@@ -63,26 +132,55 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
+      # LONG-TERM CACHE: Cargo registry
+      - name: Cache cargo registry
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry/index
+            ~/.cargo/registry/cache
+            ~/.cargo/git/db
+          key: cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            cargo-registry-
+
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: rustfmt
           cache: false
+
       - name: Enforce formatting
         run: cargo fmt --check
 
   clippy:
     name: Clippy
     runs-on: ubuntu-latest
+    needs: build # Use artifacts from build
     env:
       SQLX_OFFLINE: true
     steps:
-      - uses: actions/checkout@v4
+      - name: Check out repository code
+        uses: actions/checkout@v4
+
+      - name: Install mold linker
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y mold clang
+
+      # Download build artifacts
+      - name: Download build artifacts
+        uses: actions/download-artifact@v3
+        with:
+          name: build-artifacts
+
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: clippy
           cache: false
+
       - name: Linting
         run: cargo clippy -- -D warnings
 
@@ -104,26 +202,65 @@ jobs:
           - 16379:6379
     steps:
       - uses: actions/checkout@v4
+
       - name: Install mold linker
         run: |
           sudo apt-get update
           sudo apt-get install -y mold clang
+
+      # LONG-TERM CACHE: Cargo registry
+      - name: Cache cargo registry
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry/index
+            ~/.cargo/registry/cache
+            ~/.cargo/git/db
+          key: cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            cargo-registry-
+
+      # LONG-TERM CACHE: sqlx-cli
+      - name: Cache sqlx-cli
+        id: cache-sqlx-cov
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/sqlx
+            ~/.cargo/bin/cargo-sqlx
+          key: sqlx-cli-${{ env.SQLX_VERSION }}
+
+      # LONG-TERM CACHE: cargo-llvm-cov
+      - name: Cache cargo-llvm-cov
+        id: cache-llvm-cov
+        uses: actions/cache@v3
+        with:
+          path: ~/.cargo/bin/cargo-llvm-cov
+          key: cargo-llvm-cov-0.6.0 # Pin to a version
+
       - name: Install the Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: llvm-tools-preview
           cache: false
+
       - name: Install sqlx-cli
+        if: steps.cache-sqlx-cov.outputs.cache-hit != 'true'
         run: cargo install sqlx-cli
           --version=${{ env.SQLX_VERSION }}
           --features ${{ env.SQLX_FEATURES }}
           --no-default-features
           --locked
+
       - name: Migrate database
         run: cargo sqlx migrate run
+
       - name: Install cargo-llvm-cov
+        if: steps.cache-llvm-cov.outputs.cache-hit != 'true'
         uses: taiki-e/install-action@cargo-llvm-cov
+
       - name: Generate code coverage
         run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
+
       - name: Generate report
         run: cargo llvm-cov report --html --output-dir coverage