Adding upstream version 0.24.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

.github/workflows/test_action.yml

@@ -0,0 +1,57 @@
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          ref: "${{ github.event.pull_request.head.ref }}"
+          repository: "${{ github.event.pull_request.head.repo.full_name }}"
+          fetch-depth: 0  # ensures that tags are fetched, seems to be needed
+      - name: Capture commit id
+        id: capture
+        run: |
+          COMMIT_ID="$(git rev-parse "${{ github.head_ref }}")"
+          echo "The sha of the starting commit is $COMMIT_ID"
+          echo "SHA=$COMMIT_ID" >>"$GITHUB_OUTPUT"
+      - name: create test commit
+        run: |
+          touch test_file
+          git config --global user.email "you@example.com"
+          git config --global user.name "Your Name"
+          git add test_file
+          git commit -m "feat: test feature"
+      - name: test action
+        uses: ./
+        with:
+          github_token: "${{ secrets.GITHUB_TOKEN }}"
+          commit: false
+          push: false
+      - uses: actions/checkout@v2
+        with:
+          ref: "${{ github.event.pull_request.head.ref }}"
+          repository: "${{ github.event.pull_request.head.repo.full_name }}"
+          fetch-depth: 0  # ensures that tags are fetched, seems to be needed
+          path: new_head
+      - name: Test push
+        run: |
+          cd new_head
+          last_pushed_commit="$(git rev-parse "${{ github.head_ref }}")"
+          echo "Commit sha on origin: $last_pushed_commit"
+          if [[ $last_pushed_commit != ${{ steps.capture.outputs.SHA }} ]]; then
+            echo "Something got pushed to ${{ github.head_ref }}"
+            exit 1
+          fi
+      - name: Test commit
+        run: |
+          commit_message="$(git log -1 HEAD --pretty=format:%s)"
+          echo "Latest commit: $commit_message"
+          if [[ $commit_message != "feat: test feature" ]]; then
+            echo "The latest commit message is not 'feat: test feature'"
+            exit 1
+          fi