chore: Use uv in CI

Author: adamchainz

.github/workflows/lint.yml

@@ -16,10 +16,21 @@ jobs:
         with:
           python-version: "3.11"
 
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
+
       - uses: pre-commit/[email protected]
 
-      - name: Install dependencies
-        run: cd cl && pip install -r recap_email/requirements.txt && pip install -r tests/requirements.txt
+      - name: Install Python dependencies
+        run: |
+          cd cl
+          uv venv -p ${{ matrix.python-version }}
+          uv pip install -r recap_email/requirements.txt -r tests/requirements.txt
+          source .venv/bin/activate
+          echo "$VIRTUAL_ENV/bin" >> $GITHUB_PATH
+          echo "VIRTUAL_ENV=$VIRTUAL_ENV" >> $GITHUB_ENV
 
       - name: mypy Static Type Checker
         run: mypy --ignore-missing-imports .

.github/workflows/tests.yml

@@ -20,14 +20,19 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install dependencies
-        run: cd cl && pip install -r recap_email/requirements.txt && pip install -r tests/requirements.txt
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          enable-cache: true
 
-      - name: Activate venv
+      - name: Install Python dependencies
         run: |
-          echo "VIRTUAL_ENV=$GITHUB_WORKSPACE/.venv" >> $GITHUB_ENV
-          echo "PYTHONPATH=$GITHUB_WORKSPACE" >> $GITHUB_ENV
-          echo "$GITHUB_WORKSPACE/.venv/bin" >> $GITHUB_PATH
+          cd cl
+          uv venv -p ${{ matrix.python-version }}
+          uv pip install -r recap_email/requirements.txt -r tests/requirements.txt
+          source .venv/bin/activate
+          echo "$VIRTUAL_ENV/bin" >> $GITHUB_PATH
+          echo "VIRTUAL_ENV=$VIRTUAL_ENV" >> $GITHUB_ENV
 
       - name: Run tests
         run: cd cl && python -m pytest tests/unit -v