format.yaml

name: Comment on PRs that need DMFR formatting changes
on: 
  pull_request:
    paths:
      - '**.dmfr.json'
permissions:
  issues: write
  pull-requests: write
jobs:
  format:
    if: github.ref != 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0
        ref: ${{ github.event.pull_request.head.sha }}
        repository: ${{github.event.pull_request.head.repo.full_name}}
    - name: Install transitland-lib
      run: scripts/install-transitland-lib.sh
    - name: Format in the opinionated DMFR format
      run: |
        find ./feeds -type f -name "*.dmfr.json" -exec transitland dmfr format --save {} \;
    - name: "If any changes, run and store git diff"
      id: git-diff
      run: |-
        if ! git_status_output="$(git status --porcelain)"; then
            error_code="$?"
            echo "'git status' had an error: $error_code" 
            exit 1
        elif [ -z "$git_status_output" ]; then
            echo "Working directory is clean."
        else
            echo "Working directory has UNCOMMITTED CHANGES."
            echo "GIT_DIFF<<EOF" >> "$GITHUB_OUTPUT"
            git diff >> "$GITHUB_OUTPUT"
            echo "EOF" >> "$GITHUB_OUTPUT"
        fi
    - uses: actions/github-script@v7
      if: ${{ steps.git-diff.outputs.GIT_DIFF != null }}
      with:
        script: |
          github.rest.issues.createComment({
            issue_number: context.issue.number,
            owner: 'transitland',
            repo: 'transitland-atlas',
            body: `***This PR includes a file that does not exactly follow the "opinionated" DMFR format***

            transitland-lib recommends the following changes:

            \`\`\`diff
            ${{ steps.git-diff.outputs.GIT_DIFF }}
            \`\`\`
            
            You can use a code/text editor to make this change. Or use [transitland-lib](https://github.com/interline-io/transitland-lib/blob/main/dmfr-command.md). Or just wait and a maintainer will be glad to fix this.

            Thanks for contributing to Transitland Atlas!`
          })