Combine raw coverage files, send combined xml o codecov.io

Author: asvetlov

action.yml

@@ -17,17 +17,32 @@ runs:
       with:
         name: ${{ inputs.artifact }}
         path: ${{ runner.temp }}/coverage
+    - name: Install coverage
+      run: |
+        pip install coverage
+      working-directory: ${{ runner.temp }}/coverage
+      shell: bash
     - name: Collect names
       id: meta
       run: |
-        FILES=$(ls --dired | tr '\n' ' ')
+        FILES=$(ls -A --dired | tr '\n' ' ')
         FILES2="${FILES% }"
         echo "::set-output name=files::${FILES2// /,}"
       working-directory: ${{ runner.temp }}/coverage
       shell: bash
+    - name: Combine coverage reports
+      run: |
+        coverage combine ${{ steps.meta.outputs.files }}
+      working-directory: ${{ runner.temp }}/coverage
+      shell: bash
+    - name: Generate XML coverage report
+      run: |
+        coverage xml
+      working-directory: ${{ runner.temp }}/coverage
+      shell: bash
     - name: Upload coverage
       uses: codecov/codecov-action@v2.1.0
       with:
-        files: ${{ steps.meta.outputs.files }}
+        files: coverage.xml
         directory: ${{ runner.temp }}/coverage
         fail_ci_if_error: ${{ inputs.fail_ci_if_error }}