New coverage.yml for code coverage (#1912)

* new coverage.yml

* match the job name

* remove upload code coverage config

.github/workflows/coverage.yml

@@ -0,0 +1,33 @@
+# .github/workflows/coverage.yml
+name: Post coverage comment
+
+on:
+  workflow_run:
+    workflows: ["Test"]
+    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 }}

.github/workflows/test.yml

@@ -66,11 +66,6 @@ jobs:
         DB_HOST: 127.0.0.1
         DB_PORT: 3306
 
-    - name: Upload coverage data
-      uses: actions/upload-artifact@v4
-      with:
-        name: coverage-data-${{ matrix.python-version }}-${{ matrix.os }}-${{ matrix.arch }}-mysql
-        path: ".coverage.*"
 
   postgres:
     runs-on: ubuntu-latest
@@ -144,12 +139,6 @@ jobs:
         DB_HOST: localhost
         DB_PORT: 5432
 
-    - name: Upload coverage data
-      uses: actions/upload-artifact@v4
-      with:
-        name: coverage-data-${{ matrix.python-version }}-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.database }}
-        path: ".coverage.*"
-
   sqlite:
     runs-on: ubuntu-latest
     strategy:
@@ -192,44 +181,6 @@ jobs:
         DB_BACKEND: sqlite3
         DB_NAME: ":memory:"
 
-    - name: Upload coverage data
-      uses: actions/upload-artifact@v4
-      with:
-        name: coverage-data-${{ matrix.python-version }}-${{ matrix.os }}-${{ matrix.arch }}-sqlite
-        path: ".coverage.*"
-
-  coverage:
-    name: Check coverage.
-    runs-on: "ubuntu-latest"
-    needs: [sqlite, mysql, postgres]
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          # Use latest, so it understands all syntax.
-          python-version: "3.11"
-
-      - run: python -m pip install --upgrade coverage[toml]
-
-      - name: Download coverage data.
-        uses: actions/download-artifact@v4
-        with:
-          pattern: coverage-data-*
-          merge-multiple: true
-
-      - name: Combine coverage & check percentage
-        run: |
-          python -m coverage combine
-          python -m coverage html
-          python -m coverage report
-
-      - name: Upload HTML report if check failed.
-        uses: actions/upload-artifact@v4
-        with:
-          name: html-report
-          path: htmlcov
-        if: ${{ failure() }}
-
   lint:
     runs-on: ubuntu-latest
     strategy: