Cannot execute `steam-deploy` twice in the same CI job

[soundasleep]

Bug description

It seems that if you try to push to two branches in the same CI job, this action will fail in the second step with:

mkdir: cannot create directory ‘BuildOutput’: File exists

My guess is that at https://github.com/game-ci/steam-deploy/blob/main/steam_deploy.sh#L10 it's creating a new BuildOutput directory but it's never deleted.

How to reproduce

    - name: Deploy to Steam (branch1)
      uses: game-ci/steam-deploy@v3
      with:
        username: ...
        configVdf: ...
        appId: ...
        buildDescription: todo
        rootPath: desktop/build
        depot2Path: package/
        releaseBranch: branch1
    - name: Deploy to Steam (branch2)
      uses: game-ci/steam-deploy@v3
      with:
        username: ...
        configVdf: ...
        appId: ...
        buildDescription: todo
        rootPath: desktop/build
        depot2Path: package/
        releaseBranch: branch2

Expected behavior

It should be possible to push the same build to two Steam branches within the same CI job.

Additional details

Potential workarounds:

• Maybe steam-deploy can rm -rf BuildOutput once the build has successfully uploaded
• Or the BuildOutput directory name is randomly generated per build
• Another workaround is probably running two CI jobs concurrently, one for each Steam branch, but https://github.com/game-ci/steam-deploy/issues/62#issuecomment-2409083082 reported that it may not be possible to upload two Steam branches at the same time

[webbertakken]

Did you try your suggestion of removing BuildOutput in between the steps?

If it resolves the issue we could maybe then add it to the start of the action.

[soundasleep]

Yes! I had to do a bit of chowning first, otherwise the directory couldn't be deleted (it's created by root:root?) but this is my workaround:

    - name: Deploy to Steam (branch1)
      uses: game-ci/steam-deploy@v3
      with:
        username: ...
        configVdf: ...
        appId: ...
        buildDescription: todo
        rootPath: desktop/build
        depot2Path: package/
        releaseBranch: branch1
    - name: Delete BuildOutput folder
      run: |
        whoami
        ls -la
        ls -la BuildOutput
        sudo chown -R $USER:$USER BuildOutput
        ls -la
        ls -la BuildOutput
        rm -rf BuildOutput
    - name: Deploy to Steam (branch2)
      uses: game-ci/steam-deploy@v3
      with:
        username: ...
        configVdf: ...
        appId: ...
        buildDescription: todo
        rootPath: desktop/build
        depot2Path: package/
        releaseBranch: branch2

[mikecoker]

I also just ran into this situation and came here to see if it had been posted. I simply added a step to my build.yml, but ideally the script would cleanup after itself, or perhaps use mkdir -p BuildOutput, or take the build output location as a parameter.

[Ripazhakgggdkp]

This is also an issue for self-hosted runners, since BuildOutput survives until the next CI run and fails when checking out a new version of the code (since the owner of BuildOutput is root and can't be deleted).

unity-builder fixes this with a runAsHostUser option, so maybe something like this here would work?

[OndrejSpanel]

A single line should be enough as a workaround:

- name: Delete BuildOutput folder
  run: sudo rm -rf BuildOutput