optimization

.github/workflows/rust-ci.yml

@@ -94,6 +94,9 @@ jobs:
     defaults:
       run:
         working-directory: codex-rs
+    env:
+      IS_MACOS_RELEASE: ${{ matrix.profile == 'release' && startsWith(matrix.runner, 'macos') }}
+      CARGO_CI_PROFILE: ${{ (matrix.profile == 'release' && startsWith(matrix.runner, 'macos')) && 'ci-release' || matrix.profile }}
 
     strategy:
       fail-fast: false
@@ -174,10 +177,6 @@ jobs:
         run: |
           sudo apt install -y musl-tools pkg-config && sudo rm -rf /var/lib/apt/lists/*
 
-      - name: cargo clippy
-        id: clippy
-        run: cargo clippy --target ${{ matrix.target }} --all-features --tests --profile ${{ matrix.profile }} -- -D warnings
-
       # Running `cargo build` from the workspace root builds the workspace using
       # the union of all features from third-party crates. This can mask errors
       # where individual crates have underspecified features. To avoid this, we
@@ -191,7 +190,14 @@ jobs:
           find . -name Cargo.toml -mindepth 2 -maxdepth 2 -print0 \
             | xargs -0 -n1 -I{} bash -c 'cd "$(dirname "{}")" && cargo check --profile ${{ matrix.profile }}'
 
+      - if: ${{ matrix.profile == 'release' && startsWith(matrix.runner, 'macos') }}
+        name: Enable sccache
+        uses: mozilla-actions/sccache-action@v0
+        with:
+          version: 0.5.4
+
       - uses: taiki-e/install-action@0c5db7f7f897c03b771660e91d065338615679f4 # v2
+        if: ${{ matrix.profile != 'release' || startsWith(matrix.runner, 'macos') }}
         with:
           tool: nextest
           version: 0.9.103
@@ -209,10 +215,24 @@ jobs:
         id: test_release
         if: ${{ matrix.profile == 'release' && startsWith(matrix.runner, 'macos') }}
         continue-on-error: true
-        run: cargo nextest run --all-features --no-fail-fast --target ${{ matrix.target }} --cargo-profile release
+        run: |
+          if [[ "$IS_MACOS_RELEASE" == 'true' ]]; then
+            export RUSTC_WRAPPER="sccache"
+            export SCCACHE_GHA_ENABLED="on"
+          fi
+          cargo nextest run --all-features --no-fail-fast --target "${{ matrix.target }}" --cargo-profile "$CARGO_CI_PROFILE"
         env:
           RUST_BACKTRACE: 1
 
+      - name: cargo clippy
+        id: clippy
+        run: |
+          if [[ "$IS_MACOS_RELEASE" == 'true' ]]; then
+            export RUSTC_WRAPPER="sccache"
+            export SCCACHE_GHA_ENABLED="on"
+          fi
+          cargo clippy --target "${{ matrix.target }}" --all-features --tests --profile "$CARGO_CI_PROFILE" -- -D warnings
+
       # Save caches explicitly; make non-fatal so cache packaging
       # never fails the overall job. Only save when key wasn't hit.
       - name: Save cargo home cache