update coverage action

.github/workflows/check.yaml

@@ -85,27 +85,46 @@ jobs:
           python -m pip install --upgrade pip
           pip install -e .[test]
       - name: run pytest --cov
+        env:
+          COVERAGE_FILE: ".coverage.${{ matrix.os }}.${{ matrix.python-version }}"
+          # Alternatively you can run coverage with the --parallel flag or add
+          # `parallel = True` in the coverage config file.
+          # If using pytest-cov, you can also add the `--cov-append` flag
+          # directly or through PYTEST_ADD_OPTS.
         run: |
-          set -e
-          pytest --cov=./ --cov-report=xml
-          : .coverage confuses coveralls, remove it
-          rm -f .coverage
-      - name: upload coverage data to coveralls
-        uses: coverallsapp/[email protected]
+          pytest --cov --cov-report=xml
+      - name: Store coverage file
+        uses: actions/upload-artifact@v4
         with:
-          parallel: true
-          flag-name: python-${{ matrix.python-version }}
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-      - name: upload coverage data to codecov
-        uses: codecov/[email protected]
-        with:
-          fail_ci_if_error: true
+          name: coverage-${{ matrix.os }}-${{ matrix.python-version }}
+          path: .coverage.${{ matrix.os }}.${{ matrix.python-version }}
 
-  coveralls-finish:
-    needs: test
-    if: github.event_name != 'schedule'
+  coverage:
+    name: Coverage
     runs-on: ubuntu-latest
+    needs: test
+    permissions:
+      pull-requests: write
+      contents: write
     steps:
-      - uses: coverallsapp/[email protected]
+      - uses: actions/checkout@v4
+
+      - uses: actions/download-artifact@v4
+        id: download
+        with:
+          pattern: coverage-*
+          merge-multiple: true
+
+      - name: Coverage comment
+        id: coverage_comment
+        uses: py-cov-action/python-coverage-comment-action@v3
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          MERGE_COVERAGE_FILES: true
+
+      - name: Store Pull Request comment to be posted
+        uses: actions/upload-artifact@v4
+        if: steps.coverage_comment.outputs.COMMENT_FILE_WRITTEN == 'true'
         with:
-          parallel-finished: true
+          name: python-coverage-comment-action
+          path: python-coverage-comment-action.txt

.github/workflows/coverage.yaml

@@ -0,0 +1,35 @@
+name: Post coverage comment
+
+on:
+  workflow_run:
+    workflows: ["CI"]
+    types:
+      - completed
+
+jobs:
+  test:
+    name: Run tests & display coverage
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
+    permissions:
+      # Gives the action the necessary permissions for publishing new
+      # comments in pull requests.
+      pull-requests: write
+      # Gives the action the necessary permissions for editing existing
+      # comments (to avoid publishing multiple comments in the same PR)
+      contents: write
+      # Gives the action the necessary permissions for looking up the
+      # workflow that launched this workflow, and download the related
+      # artifact that contains the comment to be published
+      actions: read
+    steps:
+      # DO NOT run actions/checkout here, for security reasons
+      # For details, refer to https://securitylab.github.com/research/github-actions-preventing-pwn-requests/
+      - name: Post comment
+        uses: py-cov-action/python-coverage-comment-action@v3
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_PR_RUN_ID: ${{ github.event.workflow_run.id }}
+          # Update those if you changed the default values:
+          # COMMENT_ARTIFACT_NAME: python-coverage-comment-action
+          # COMMENT_FILENAME: python-coverage-comment-action.txt