ci: implement Rust caching & remote Turbo caching

.github/workflows/_ci-build-tauri-apps.reusable.yml

@@ -63,6 +63,13 @@ jobs:
       - name: 🦀 Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
 
+      - name: 🦀 Rust Cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: '.'
+          cache-on-failure: true
+          cache-targets: false
+
       # Install Tauri dependencies on Linux
       - name: 🔧 Fix ARM64 Package Sources (Linux)
         if: runner.os == 'Linux' && runner.arch == 'ARM64'

.github/workflows/_ci-build-tauri-e2e-app.reusable.yml

@@ -68,6 +68,13 @@ jobs:
       - name: 🦀 Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
 
+      - name: 🦀 Rust Cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: '.'
+          cache-on-failure: true
+          cache-targets: false
+
       - name: 🔧 Fix ARM64 Package Sources (Linux)
         if: runner.os == 'Linux' && runner.arch == 'ARM64'
         shell: bash

.github/workflows/_ci-build-tauri-package-app.reusable.yml

@@ -79,6 +79,13 @@ jobs:
       - name: 🦀 Install Rust Toolchain
         uses: dtolnay/rust-toolchain@stable
 
+      - name: 🦀 Rust Cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: '.'
+          cache-on-failure: true
+          cache-targets: false
+
       - name: 🔧 Fix ARM64 Package Sources (Linux)
         if: runner.os == 'Linux' && runner.arch == 'ARM64'
         shell: bash

.github/workflows/_ci-build.reusable.yml

@@ -64,12 +64,16 @@ jobs:
           echo "build_id=$(date +%s)-${{ github.run_id }}" >> $GITHUB_OUTPUT
           echo "build_date=$(date -u +"%Y-%m-%dT%H:%M:%SZ")" >> $GITHUB_OUTPUT
 
-      # Build all packages using Turbo
-      # This creates the dist/ directories with compiled code
+      - name: Turbo Cache (GitHub Native)
+        uses: dtinth/setup-github-actions-caching-for-turbo@v1
+
       - name: 🏗️ Build All Packages
         run: pnpm run build
         shell: bash
 
+      - name: Cache Report
+        run: echo "Check turbo summary above for HIT/MISS"
+
       # Upload build artifacts, but only from Linux
       # This is because Linux builds are most consistent and used by all other jobs
       # The artifacts include all dist/ and dist-js/ directories from all packages

.github/workflows/_ci-e2e.reusable.yml

@@ -84,8 +84,12 @@ jobs:
         run: |
           echo "::notice::Build artifact: ID=${{ inputs.build_id }}, Size=${{ inputs.artifact_size }} bytes"
 
+      - name: Turbo Cache (GitHub Native)
+        uses: rharkor/caching-for-turbo@v1
+        with:
+          turbo-cache-path: .turbo/cache
+
       # Dynamically generate the Turbo filter for building test applications
-      # This converts the scenario input into Turbo filter syntax
       - name: 🪄 Generate Build Filter for Test Apps
         id: gen-build
         uses: actions/github-script@v8

.github/workflows/_ci-package.reusable.yml

@@ -132,6 +132,9 @@ jobs:
             echo "::warning::No dist directories found, build extraction may have failed"
           fi
 
+      - name: Turbo Cache (GitHub Native)
+        uses: rharkor/caching-for-turbo@v1
+
         # Pack services from downloaded artifacts so --skip-build can use them
         # This creates the .tgz files that the test script expects when --skip-build is used
       - name: 📦 Pack Services from Artifacts
@@ -243,3 +246,6 @@ jobs:
         if: failure()
         with:
           timeout: '180000'
+
+      - name: Cache Report
+        run: echo "Check turbo summary above for HIT/MISS"

.github/workflows/_ci-unit.reusable.yml

@@ -74,8 +74,14 @@ jobs:
             echo "::warning::No dist directories found, build extraction may have failed"
           fi
 
+      - name: Turbo Cache (GitHub Native)
+        uses: rharkor/caching-for-turbo@v1
+
       # Run unit and integration tests using Turbo
       # The --only flag ensures we only run tests for the packages that have changed
       - name: 🧪 Execute Unit and Integration Tests
         run: pnpm run test:unit test:integration --only
         shell: bash
+
+      - name: Cache Report
+        run: echo "Check turbo summary above for HIT/MISS"

.github/workflows/ci.yml

@@ -40,13 +40,11 @@ jobs:
     with:
       os: 'ubuntu-latest'
 
-  # Run linting after build to use the build artifacts
+  # Run linting after change detection
   lint:
     name: Lint [Linux]
-    needs: [detect-changes, build]
+    needs: [detect-changes]
     uses: ./.github/workflows/_ci-lint.reusable.yml
-    with:
-      cache_key: ${{ needs.build.outputs.cache_key }}
 
   # Run unit tests in parallel with lint - both only need build artifacts
   unit-matrix:
@@ -129,11 +127,7 @@ jobs:
       artifact_size: ${{ needs.build.outputs.artifact_size }}
       cache_key: ${{ needs.build.outputs.cache_key }}
 
-  # Run package tests after unit tests to ensure the package is built correctly
-  # Split Electron and Tauri tests across separate jobs for better parallelization and clarity
-  # Electron apps are built inline on the test runner (faster builds, Turbo caching handles it)
-  # Tauri apps are built separately due to longer build times and system dependencies
-  # Electron package tests are split by module type (CJS/ESM) for better error isolation
+  # Electron package tests run in parallel with linting
   package-electron-matrix:
     name: Package - Electron
     needs: [detect-changes, build]
@@ -249,7 +243,7 @@ jobs:
     with:
       distro: ${{ matrix.distro }}
 
-  # Run build tests outside of the main Linux build job
+  # Run build tests in parallel with linting
   build-matrix:
     name: Build
     needs: [detect-changes, build]
@@ -440,7 +434,7 @@ jobs:
       cache_key: ${{ needs.build.outputs.cache_key }}
       tauri_cache_key: ''
 
-  # Universal binary verification - Electron only
+  # Universal binary verification - Electron only (runs in parallel with linting)
   package-electron-mac-universal:
     name: Package - Electron [macOS-Universal-Verify]
     needs: [detect-changes, build]