Build latest IANA data workflow (moment/moment-timezone)

name: Build latest IANA data
 
on:
  workflow_dispatch:
 
jobs:
  build-data:
    timeout-minutes: 30
    name: Fetch and build latest data from IANA
    runs-on: latchkey-small
 
    steps:
      - uses: actions/checkout@v4
 
      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: lts/*
          cache: npm
 
      - name: Install dependencies
        run: npm ci
 
      # This differs slightly from the default `grunt data` flow. We want to explicitly compile
      # `zic` and `zdump` to avoid relying on whatever version is on the action runners.
      - name: Download tzdata and tzcode
        run: |
          npx grunt --verbose clean data-download
          npx grunt --verbose data-download --fetch-tzcode
 
      - name: Build zic and zdump
        run: |
          pushd temp/download/latest
          make clean
          make
          popd
 
      - name: Generate new data
        run: |
          npx grunt --verbose data-meta \
            data-zic --zic-path=./temp/download/latest/zic \
            data-zdump --zdump-path=./temp/download/latest/zdump \
            data-collect \
            data-dedupe \
            data-pack \
            data-tests
 
      # The PR-specific workflow doesn't seem to run for PRs created by other workflows,
      # so we run the tests manually here just in case
      - name: Run tests
        run: npm test
        # Create a PR even if tests fail, so the branch can be pulled down locally to debug errors
        continue-on-error: true
 
      # Prepare version metadata for use in PR creation
      - name: Prepare metadata
        id: meta
        run: |
          echo "TZDATA_VERSION=$(cat temp/download/latest/version)" >> "$GITHUB_OUTPUT"
          echo -e "This contains the following changes from tzdb (edit this to remove details irrelevant to this project):\n\n\`\`\`" > temp/pr-body.txt
          awk '/^Release [[:digit:]]{4}/ {\
              if (used != 1) { used = 1; active = 1 }\
              else { active = 0 }\
            } { if (active == 1) print }' \
            temp/download/latest/NEWS >> temp/pr-body.txt
          echo "\`\`\`" >> temp/pr-body.txt
 
      - name: Create pull request
        uses: peter-evans/create-pull-request@v6
        with:
          author: 'github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>'
          branch: automated/data-update
          commit-message: 'data: Add ${{ steps.meta.outputs.TZDATA_VERSION }}'
          title: 'data: Add ${{ steps.meta.outputs.TZDATA_VERSION }}'
          body-path: temp/pr-body.txt
          reviewers: ${{ github.actor }}