ci: add cargo caching in ci builds

Author: aorumbayev

.github/actions/setup-api-tools/action.yml

@@ -2,9 +2,9 @@ name: 'Setup API Tools'
 description: 'Setup Rust, Bun, and Python dependencies for API tools'
 
 runs:
-  using: 'composite'
+  using: "composite"
   steps:
-    - uses: dtolnay/rust-toolchain@master
+    - uses: ./.github/actions/setup-rust
       with:
         toolchain: 1.85.0
         components: rustfmt

.github/actions/setup-rust/action.yml

@@ -0,0 +1,65 @@
+name: "Setup Rust"
+description: "Install a Rust toolchain and configure Cargo caching"
+
+inputs:
+  toolchain:
+    description: "Rust toolchain specifier to install"
+    required: false
+    default: "1.85.0"
+  components:
+    description: "Comma-separated list of rustup components to install"
+    required: false
+    default: ""
+  targets:
+    description: "Comma-separated list of additional targets to install"
+    required: false
+    default: ""
+  extra-cache-key:
+    description: "Suffix appended to the cache key to partition caches (e.g. per matrix entry)"
+    required: false
+    default: ""
+  cache-target-dir:
+    description: "Directory containing build artifacts to cache"
+    required: false
+    default: "target"
+  skip-cache:
+    description: "Skip configuring the Cargo cache when set to true"
+    required: false
+    default: "false"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Install Rust toolchain
+      id: toolchain
+      uses: dtolnay/rust-toolchain@master
+      with:
+        toolchain: ${{ inputs.toolchain }}
+        components: ${{ inputs.components }}
+        targets: ${{ inputs.targets }}
+
+    - name: Compose cache key prefix
+      id: cachekey
+      if: ${{ inputs.skip-cache != 'true' }}
+      shell: bash
+      env:
+        EXTRA_KEY: ${{ inputs['extra-cache-key'] }}
+      run: |
+        prefix="${{ runner.os }}"
+        if [ -n "$EXTRA_KEY" ]; then
+          prefix="$prefix-$EXTRA_KEY"
+        fi
+        echo "prefix=$prefix" >> "$GITHUB_OUTPUT"
+
+    - name: Cache Cargo directories
+      if: ${{ inputs.skip-cache != 'true' }}
+      uses: actions/cache@v4
+      with:
+        path: |
+          ~/.cargo/registry
+          ~/.cargo/git
+          ${{ inputs['cache-target-dir'] }}
+        key: ${{ steps.cachekey.outputs.prefix }}-${{ steps.toolchain.outputs.cachekey }}-${{ hashFiles('**/Cargo.lock') }}
+        restore-keys: |
+          ${{ steps.cachekey.outputs.prefix }}-${{ steps.toolchain.outputs.cachekey }}-
+          ${{ steps.cachekey.outputs.prefix }}-

.github/workflows/ci_cd.yml

@@ -23,7 +23,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.ref }}
-      - uses: dtolnay/rust-toolchain@master
+      - uses: ./.github/actions/setup-rust
         with:
           toolchain: 1.85.0
           components: clippy, rustfmt

.github/workflows/deploy_docs.yml

@@ -20,7 +20,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Rust
-        uses: dtolnay/rust-toolchain@stable
+        uses: ./.github/actions/setup-rust
+        with:
+          toolchain: stable
 
       - name: Build documentation
         run: cargo run --bin build-docs --manifest-path docs/Cargo.toml

.github/workflows/polytest_validate.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
+      - uses: ./.github/actions/setup-rust
         with:
           toolchain: 1.85.0
       - name: Polytest Validate

.github/workflows/python_uniffi_ci_cd.yml

@@ -52,6 +52,10 @@ jobs:
           ref: ${{ github.ref }}
           token: ${{ steps.app_token.outputs.token }}
         if: inputs.release
+      - if: inputs.release
+        uses: ./.github/actions/setup-rust
+        with:
+          toolchain: 1.85.0
       - uses: oven-sh/setup-bun@v2
         if: inputs.release
         with:
@@ -115,7 +119,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.ref }}
-      - uses: dtolnay/rust-toolchain@master
+      - uses: ./.github/actions/setup-rust
         with:
           toolchain: 1.85.0
           targets: ${{ matrix.target.name }}
@@ -183,6 +187,10 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.ref }}
+      - uses: ./.github/actions/setup-rust
+        with:
+          toolchain: 1.85.0
+          extra-cache-key: ${{ matrix.arch }}-${{ matrix.libc }}
 
       - name: Set up QEMU
         if: matrix.arch != 'aarch64' && matrix.arch != 'x86_64'
@@ -220,6 +228,9 @@ jobs:
         env:
           RUN: |
             cd /workspace/${{ env.PACKAGE_DIR }}
+            mkdir -p /workspace/.cargo
+            export CARGO_HOME=/workspace/.cargo
+            export CARGO_TARGET_DIR=/workspace/target
             poetry env use python${{ env.PYTHON_VERSION }}
             cargo pkg ${{ inputs.crate }} py
         run: docker exec build-container bash -c "$RUN"

.github/workflows/swift_ci.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
+      - uses: ./.github/actions/setup-rust
         with:
           toolchain: 1.85.0
           targets: aarch64-apple-ios, x86_64-apple-ios, aarch64-apple-ios-sim, x86_64-apple-ios, aarch64-apple-ios-macabi, x86_64-apple-ios-macabi, aarch64-apple-darwin, x86_64-apple-darwin