aggressive caching in workflows

Author: Gunther Klessinger

.github/workflows/ci.yml

@@ -28,6 +28,14 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Cache apt packages
+        uses: actions/cache@v4
+        with:
+          path: /var/cache/apt/archives
+          key: ${{ runner.os }}-apt-${{ hashFiles('.github/workflows/ci.yml') }}
+          restore-keys: |
+            ${{ runner.os }}-apt-
+
       - name: Install system dependencies
         run: |
           sudo apt-get update
@@ -44,10 +52,22 @@ jobs:
         uses: astral-sh/setup-uv@v4
         with:
           version: "latest"
+          enable-cache: true
 
       - name: Install just
         uses: extractions/setup-just@v3
 
+      - name: Cache uv dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/uv
+            .venv
+          key: ${{ runner.os }}-uv-${{ matrix.python-version }}-${{ hashFiles('pyproject.toml', 'uv.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-uv-${{ matrix.python-version }}-
+            ${{ runner.os }}-uv-
+
       - name: Install dependencies
         run: uv sync
 
@@ -71,6 +91,14 @@ jobs:
         with:
           fetch-depth: 0  # Fetch all history for git-changelog
 
+      - name: Cache apt packages
+        uses: actions/cache@v4
+        with:
+          path: /var/cache/apt/archives
+          key: ${{ runner.os }}-apt-${{ hashFiles('.github/workflows/ci.yml') }}
+          restore-keys: |
+            ${{ runner.os }}-apt-
+
       - name: Install system dependencies
         run: |
           sudo apt-get update
@@ -87,10 +115,22 @@ jobs:
         uses: astral-sh/setup-uv@v4
         with:
           version: "latest"
+          enable-cache: true
 
       - name: Install just
         uses: extractions/setup-just@v3
 
+      - name: Cache uv dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/uv
+            .venv
+          key: ${{ runner.os }}-uv-3.11-${{ hashFiles('pyproject.toml', 'uv.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-uv-3.11-
+            ${{ runner.os }}-uv-
+
       - name: Install dependencies
         run: uv sync
 
@@ -119,6 +159,14 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Cache apt packages
+        uses: actions/cache@v4
+        with:
+          path: /var/cache/apt/archives
+          key: ${{ runner.os }}-apt-${{ hashFiles('.github/workflows/ci.yml') }}
+          restore-keys: |
+            ${{ runner.os }}-apt-
+
       - name: Install system dependencies
         run: |
           sudo apt-get update
@@ -135,10 +183,22 @@ jobs:
         uses: astral-sh/setup-uv@v4
         with:
           version: "latest"
+          enable-cache: true
 
       - name: Install just
         uses: extractions/setup-just@v3
 
+      - name: Cache uv dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/uv
+            .venv
+          key: ${{ runner.os }}-uv-3.11-${{ hashFiles('pyproject.toml', 'uv.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-uv-3.11-
+            ${{ runner.os }}-uv-
+
       - name: Install dependencies
         run: uv sync