mit-learn/.github/workflows/openapi-diff.yml at main · mitodl/mit-learn · GitHub

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name: OpenAPI Diff
on: [pull_request]
jobs:
  openapi-diff:
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Checkout HEAD
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ github.head_ref }}
          path: head
          persist-credentials: false
      - name: Checkout BASE
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ github.base_ref }}
          path: base
          persist-credentials: false
      - name: Generate oasdiff summary
        id: oasdif_changelog
        run: |
          SUMMARY=$(docker run --rm \
            --workdir ${{ github.workspace }} \
            --volume ${{ github.workspace }}:${{ github.workspace }}:rw \
            -e GITHUB_WORKSPACE=${{ github.workspace }} \
            tufin/oasdiff changelog --composed --flatten-allof \
            'base/openapi/specs/*.yaml' \
            'head/openapi/specs/*.yaml' \
            | head -1)
          echo "summary=$SUMMARY" >> $GITHUB_OUTPUT
          {
            echo "## OpenAPI Changes"
            echo ""
            echo "${SUMMARY:-No detectable change.}"
            echo ""
            echo "[View full changelog](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})"
            echo ""
            echo "Unexpected changes? Ensure your branch is up-to-date with \`main\` (consider rebasing)."
          } > comment_body.md
      - name: Find existing comment
        id: find_comment
        uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          repository: ${{ github.repository }}
          issue-number: ${{ github.event.pull_request.number }}
          body-includes: "## OpenAPI Changes"
      - name: Post changes as comment
        uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5
        # Even if no changes, make sure to update old comment if it was found.
        if: steps.oasdif_changelog.outputs.summary || steps.find_comment.outputs.comment-id
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          edit-mode: "replace"
          repository: ${{ github.repository }}
          issue-number: ${{ github.event.pull_request.number }}
          comment-id: ${{ steps.find_comment.outputs.comment-id }}
          body-path: comment_body.md
      - name: Check for breaking changes
        id: oasdif_breaking
        run: |
          docker run --rm \
            --workdir ${{ github.workspace }} \
            --volume ${{ github.workspace }}:${{ github.workspace }}:ro \
            -e GITHUB_WORKSPACE=${{ github.workspace }} \
            tufin/oasdiff breaking \
            --err-ignore head/openapi/oasdiff-err-ignore.txt \
            --fail-on ERR \
            --format githubactions \
            --composed --flatten-allof \
            'base/openapi/specs/*.yaml' \
            'head/openapi/specs/*.yaml'