Improved GCC Problem Matcher

Creates annotations for compiler diagnostics (warnings and errors) when building your code.

Do you prefer your workflow to fail?

Suppose you don't like compiler warnings. Use the Annotation Failure Action! It finds problem annotations created by the Improved GCC Problem Matcher and causes the workflow job to fail. This is way better than -Werror ("any warning is treated as a compilation error") because your build can complete and you can still run your test suite and collect potential test failures.

Inputs

build-directory

Optional Directory the build is running in. Matched errors will not be able to point to the correct file or create warnings in the Files changed overview unless this is correct.

Example usage

Create annotations for builds done in the default directory. Add this anywhere before starting the build.

    - uses: root-project/gcc-problem-matcher-improved@v1
    
    - name: Build
      run: |
        ...

Create annotations for builds done in directory /workspace/build/

    - uses: root-project/gcc-problem-matcher-improved@v1
      with:
        build-directory: /workspace/build/
        
    - name: Build
      run: |
         ...

Dev Internals

Directories

src/ contains the sources; dist/ is what people use in production. To compile src/ into dist/ run npm run build.

Prerequisite packages for npm run build

Install nvm through curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.4/install.sh | bash or similar, as decribed e.g. here. Install npm by taking a recent version from the output of nvm list-remote and installing it through nvm install v20 or similar. npm run build needs ncc which one needs to install through npm i -g @vercel/ncc.