sync.yml

name: sync

# Daily: if owterminal.com serves a newer ow.mjs, open a pull request with it.

on:
  schedule:
    - cron: "23 6 * * *"
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

concurrency:
  group: sync
  cancel-in-progress: false

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: 22

      - name: Download ow.mjs
        id: fetch
        run: |
          curl -fsSL --retry 3 https://owterminal.com/ow.mjs -o "$RUNNER_TEMP/ow.mjs"
          node --input-type=module --check < "$RUNNER_TEMP/ow.mjs"
          if cmp -s "$RUNNER_TEMP/ow.mjs" ow.mjs; then
            echo "ow.mjs is current."
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            cp "$RUNNER_TEMP/ow.mjs" ow.mjs
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Open a pull request
        if: steps.fetch.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          branch=sync/ow-mjs
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git switch -C "$branch"
          git add ow.mjs
          git commit -m "Sync ow.mjs from owterminal.com"
          git push --force origin "$branch"
          open=$(gh pr list --head "$branch" --state open --json number --jq length)
          if [ "$open" = "0" ]; then
            # The organization may not allow Actions to open pull requests. Then the
            # branch is still pushed, and the run leaves a link instead of failing.
            gh pr create --base main --head "$branch" \
              --title "Sync ow.mjs from owterminal.com" \
              --body "owterminal.com serves a newer ow.mjs. It parses under Node 22. Add a CHANGELOG.md line before merging." \
              || echo "::warning::Could not open a pull request. Open one from $branch: https://github.com/${GITHUB_REPOSITORY}/compare/main...$branch"
          fi