submit-shader.yml

name: Conditional PR Merge with Directory Scope Check

on:
    pull_request_review:
        types: [submitted]
    pull_request:
        types: [opened, synchronize, reopened]

jobs:
    directory-scope-check:
        runs-on: ubuntu-latest
        steps:
            - name: Checkout
              uses: actions/checkout@v4.1.1

            - name: Ensure changes are scoped to user's directory
              id: scope_check
              uses: actions/github-script@v7.0.1
              with:
                  github-token: ${{ secrets.GITHUB_TOKEN }}
                  script: |
                      const username = context.payload.pull_request.user.login;
                      const filesChanged = await github.rest.pulls.listFiles({
                        owner: context.repo.owner,
                        repo: context.repo.repo,
                        pull_number: context.payload.pull_request.number
                      });

                      const isValidScope = filesChanged.data.every(file => {
                        const inUserFolder = file.filename.startsWith(`shaders/${username}/`);
                        const isFragmentShader = file.filename.endsWith('.frag');
                        return inUserFolder && isFragmentShader;
                      });

                      core.setOutput('valid_scope', isValidScope); // Correct way to set output
                      if (!isValidScope) {
                        console.log("PR contains changes outside the user's specific directory.");
                      } else {
                        console.log("All changes are within the user's specific directory.");
                      }

            - name: Merge PR if only user directory is changed and checks passed
              if: steps.scope_check.outputs.valid_scope == 'true'
              uses: actions/github-script@v7.0.1
              with:
                  github-token: ${{ secrets.GITHUB_TOKEN }}
                  script: |
                      github.rest.pulls.merge({
                        owner: context.repo.owner,
                        repo: context.repo.repo,
                        pull_number: context.payload.pull_request.number,
                        merge_method: 'squash'
                      });