Prefix parameter not passed to test-reporter if coverageLocations is empty

[matthewshirley]

Describe the bug
I have set the test reporter to upload without specifying the coverageLocations parameter. In this scenario, the prefix is never added to the after-build call.

Version of codeclimate-action you're using
v2.5.7

Example links

CI Step

      - name: Publish coverage to CodeClimate
        uses: paambaati/codeclimate-action@v2.7.4
        env:
          CC_TEST_REPORTER_ID: demo
        with:
          debug: true
          workingDirectory: ./example_example
          prefix: /home/runner/work/example_example/example_example

Environment

 with:
    debug: true
    workingDirectory: ./example_example
    prefix: /home/runner/work/example_example/example_example
  env:
    ...

Debug

time="2020-12-04T03:52:45Z" level=debug msg="about to run format-coverage" 
time="2020-12-04T03:52:45Z" level=debug msg="searching for a formatter to use" 
time="2020-12-04T03:52:45Z" level=debug msg="checking gocov formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path c.out for gocov formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking jacoco formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path jacoco.xml for jacoco formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking lcov formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path coverage/lcov.info for lcov formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking clover formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path build/logs/clover.xml for clover formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path clover.xml for clover formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking cobertura formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path cobertura.xml for cobertura formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking coverage.py formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="checking search path coverage.xml for coverage.py formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="found file coverage.xml for coverage.py formatter" 
time="2020-12-04T03:52:45Z" level=debug msg="couldn't load committed at from ENV, trying git..." 
time="2020-12-04T03:52:45Z" level=debug msg="creating test file report for /home/runner/work/example_example/example_example/example_example/conftest.py" 
time="2020-12-04T03:52:45Z" level=info msg="trimming with prefix /home/runner/work/example_example/example_example/example_example/" 

Expected behavior
The prefix to be added to the after-build call.

[roobre]

I just came across this very same issue. Because of codeclimate/test-reporter#378, this breaks all go tests outside of $GOPATH. Since in Github Actions repos are cloned outside of the $GOPATH by default, this renders codeclimate unusable unless workarounded.

Setting a non-empty coverageLocation and computing the prefix does work well:

      - name: Set codeclimate prefix
        run: |
          echo "CC_PREFIX=$(go list -m)" >> $GITHUB_ENV
      - name: Test & publish code coverage
        uses: paambaati/codeclimate-action@v2.7.4
        env:
          CC_TEST_REPORTER_ID: redacted
        with:
          coverageCommand: go test -coverprofile=c.out ./...
          coverageLocations: "${{ github.workspace }}/c.out:gocov" # Should be the default, but workarounds this issue
          prefix: ${{ env.CC_PREFIX }} # Makes reporter work with modern gocov reports

[paambaati]

@roobre The fix provided by @matthewshirley has now landed in v2.7.5. Can you try that and see if that fixes your issue? If it doesn't, feel free to reopen this issue.

[roobre]

Seems to be working nice and smooth now, many thanks @paambaati @matthewshirley! ❤️