Merge pull request #10 from minrk/pre-commit-ci

run pre-commit on ci

.github/workflows/pre-commit.yaml

@@ -0,0 +1,81 @@
+# run pre-commit
+name: lint
+
+on:
+  pull_request:
+
+jobs:
+  lint:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: "ubuntu-22.04"
+    defaults:
+      run:
+        shell: /usr/bin/bash -o pipefail -u -e {0}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: install pre-commit
+        run: pip install pre-commit
+
+      - uses: actions/cache@v4
+        with:
+          path: ~/.cache/pre-commit
+          key: pre-commit-${{ hashFiles('.pre-commit-config.yaml') }}
+
+      - name: setup pre-commit
+        run: |
+          pre-commit install-hooks
+
+      - name: run pre-commit
+        run: |
+          pre-commit run --color=always --from-ref '${{ github.event.pull_request.base.sha }}' --to-ref '${{ github.event.pull_request.head.sha }}' 2>&1 | tee pre-commit-output
+
+      - name: pre-commit tip
+        if: failure()
+        run: |
+          echo 'run `pre-commit run --all-files` and commit the resulting changes'
+
+      - name: render report (click Summary to view)
+        if: failure()
+        run: |
+          cat <<EOF >> report
+          ## pre-commit failed
+
+          Run \`pre-commit run --all-files\` to check for errors.
+          Usually, these will just be auto-formatting changes,
+          which you can commit and push. 
+
+          You can install the pre-commit hooks with:
+
+          \`\`\`
+          pip install pre-commit
+          pre-commit install
+          \`\`\`
+
+          pre-commit output:
+            
+          \`\`\`\`
+          $(cat pre-commit-output | sed 's/\x1b\[[0-9;?]*[mh]//g')
+          \`\`\`\`
+
+          <details>
+          <summary>diff produced by auto-formatters:</summary>
+            
+          \`\`\`diff
+          $(git diff HEAD)
+          \`\`\`
+
+          </details>
+
+          EOF
+
+          cat report
+          cat report >> $GITHUB_STEP_SUMMARY