Switch to using Codecov GitHub Action.

.github/workflows/cmake.yml

@@ -432,28 +432,35 @@ jobs:
         TSAN_OPTIONS: ${{ matrix.tsan-options || 'verbosity=0' }}:abort_on_error=1
         LSAN_OPTIONS: ${{ matrix.lsan-options || 'verbosity=0' }}:abort_on_error=1
 
-    - name: Upload coverage report
-      if: matrix.codecov && ( env.CODECOV_TOKEN_SECRET != '' || github.repository == 'zlib-ng/zlib-ng' )
-      shell: bash
+    - name: Generate coverage report
+      if: matrix.codecov && (env.CODECOV_TOKEN_SECRET != '' || github.repository == 'zlib-ng/zlib-ng')
       run: |
-        python -u -m pip install --user codecov
-        bash tools/codecov-upload.sh
+        python3 -u -m pip install --user gcovr
+        python3 -m gcovr --gcov-executable "${{ matrix.gcov-exec || 'gcov' }}" --root "${{ matrix.build-src-dir || '.' }}" --xml --output coverage.xml --verbose
+      env:
+        CODECOV_TOKEN_SECRET: "${{secrets.CODECOV_TOKEN}}"
+
+    - name: Upload coverage report
+      uses: codecov/codecov-action@v2
+      if: matrix.codecov && (env.CODECOV_TOKEN_SECRET != '' || github.repository == 'zlib-ng/zlib-ng')
+      with:
+        token: ${{ secrets.CODECOV_TOKEN || 'e4fdf847-f541-4ab1-9d50-3d27e5913906' }}
+        flags: ${{ matrix.codecov }}
+        name: ${{ matrix.name }}
+        directory: ${{ matrix.build-src-dir || '.' }}
+        verbose: true
+        fail_ci_if_error: true
       env:
-        # Codecov does not yet support GitHub Actions
         CODECOV_TOKEN_SECRET: "${{secrets.CODECOV_TOKEN}}"
-        CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN || 'e4fdf847-f541-4ab1-9d50-3d27e5913906' }}"
-        CODECOV_FLAGS: "${{ matrix.codecov }}"
-        CODECOV_NAME:  "${{ matrix.name }}"
-        CODECOV_EXEC:  "${{ matrix.gcov-exec || 'gcov' }}"
-        CODECOV_DIR:   "${{ matrix.build-dir || '.' }}"
 
     - name: Upload build errors
       uses: actions/upload-artifact@v2
       if: failure()
       with:
         name: ${{ matrix.name }} (cmake)
         path: |
-          ${{ matrix.build-dir || '.' }}/CMakeFiles/CMakeOutput.log
-          ${{ matrix.build-dir || '.' }}/CMakeFiles/CMakeError.log
-          ${{ matrix.build-dir || '.' }}/Testing/Temporary/*
+          **/CMakeFiles/CMakeOutput.log
+          **/CMakeFiles/CMakeError.log
+          **/Testing/Temporary/*
+          **/coverage.xml
         retention-days: 30