ci: improve caching, use taiki-e/install-action where possible, add sccache, optimize dependency setup

.github/workflows/ci.yml

@@ -7,6 +7,9 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
+  RUSTC_WRAPPER: sccache
+  SCCACHE_GHA_ENABLED: "true"
+  SCCACHE_CACHE_SIZE: "2G"
 
 jobs:
   build:
@@ -18,6 +21,23 @@ jobs:
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: Install sccache
+        uses: taiki-e/install-action@sccache
+
+      - name: Configure sccache
+        uses: actions/github-script@v7
+        with:
+          script: |
+            core.exportVariable("ACTIONS_RESULTS_URL", process.env.ACTIONS_RESULTS_URL || "");
+            core.exportVariable("ACTIONS_RUNTIME_TOKEN", process.env.ACTIONS_RUNTIME_TOKEN || "");
+
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: src-tauri
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -31,16 +51,14 @@ jobs:
           cache: "pnpm"
 
       - name: Install JS deps
-        run: pnpm install --frozen-lockfile
+        run: pnpm install --frozen-lockfile --prefer-offline
 
       - name: Install Linux dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y \
-            pkg-config \
+          sudo apt-get install -y --no-install-recommends \
             build-essential \
             libxdo-dev \
-            libssl-dev \
             libglib2.0-dev \
             libwebkit2gtk-4.1-dev \
             libayatana-appindicator3-dev \
@@ -63,3 +81,7 @@ jobs:
 
       - name: Run tests
         run: cargo test --manifest-path src-tauri/Cargo.toml --all-features
+
+      - name: sccache stats
+        if: always()
+        run: sccache --show-stats

.github/workflows/code-quality.yml

@@ -51,17 +51,13 @@ jobs:
             patchelf
 
       - name: Install cargo-udeps
-        uses: taiki-e/cache-cargo-install-action@v2
-        with:
-          tool: cargo-udeps
+        uses: taiki-e/install-action@cargo-udeps
 
       - name: Check for unused dependencies
         run: cargo +nightly udeps --manifest-path src-tauri/Cargo.toml --all-targets
 
       - name: Install cargo-machete
-        uses: taiki-e/cache-cargo-install-action@v2
-        with:
-          tool: cargo-machete
+        uses: taiki-e/install-action@cargo-machete
 
       - name: Check for unused Cargo.toml dependencies
         run: cargo machete src-tauri/