Autobuild does not find maven build (pom.xml) files in subdirs

[mark-sawers]

Description of the issue
I have a repo with multiple Java maven projects. The default codeql-analysis.yml file looks like this:

  jobs:
   ...
   steps:
   ...
    - name: Autobuild
      uses: github/codeql-action/autobuild@v1
   ...

Github's advanced security workflow reports that it cannot find a suitable source file to build when pom.xml files are not in the root of the repo: ERROR: Could not detect a suitable build command for the source checkout.

Is that expected?

Workaround
I can change it to use the find utility to search for pom.xml files and run the package goal:

  jobs:
   ...
   steps:
   ...
    - if: matrix.language != 'java'
      name: Autobuild
      uses: github/codeql-action/autobuild@v1

    - if: matrix.language == 'java'
      name: Build Java
      run: |
        find . -name pom.xml -exec mvn -f {} package \;
   ...

My Ask
If that is expected, then I'm asking for an enhancement request to the autobuilder to search for pom.xml files.

Either way, I request Github doc be updated to show a solution like above for this, IMO, very common scenario.

Thanks!

[github-actions]

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