publish.yml

# make sure dist is up-to-date and automatically update major tags to latest revision tag SHA
name: Publish

on:
  release:
    types: [published, edited]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      # set env
      - name: Set env for major version and release branch
        run: |
          echo "MAJOR_TAG=$( cut -d '.' -f 1 <<< ${{ github.event.release.tag_name }} )" >> $GITHUB_ENV
          echo "RELEASE_BRANCH=release/$( cut -d '.' -f 1 <<< ${{ github.event.release.tag_name }} )" >> $GITHUB_ENV

      # check env set correctly
      - name: Check env var
        run: |
          echo $MAJOR_TAG
          echo $RELEASE_BRANCH
      
      # checkout full repo
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.release.tag_name }}
          fetch-depth: '0'
      
      - name: Config user name and email
        run: |
          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"

      # checkout release branch or create if doesn't exist
      - name: Check/Create release branch
        run: git switch $RELEASE_BRANCH || git switch -c $RELEASE_BRANCH

      # merge release tag
      - name: Merge release branch with release tag
        run: git merge ${{ github.event.release.tag_name }}
            
      # build dist
      - name: Setup node
        uses: actions/setup-node@v4
        with:
          node-version: 20
      - name: Rebuild dist
        run: |
          npm ci
          npm run build

      # commit dist changes
      - name: Commit dist changes
        run: |
          git add dist/
          git commit -m "Update dist for release" || exit 0

      # push new commit
      - name: Push commits
        run: git push origin $RELEASE_BRANCH

      # update release and re-tag
      - name: Update release tag
        run: |
          releasetag=${{ github.event.release.tag_name }}
          tagmessage=$(git tag -l --format='%(contents)' $releasetag)
          git tag -f -a $releasetag -m "$tagmessage"
          git push origin $releasetag -f

      # update major tag
      - name: Update major tag
        run: |
          git tag -f -a $MAJOR_TAG -m "Updated $MAJOR_TAG tag"
          git push origin $MAJOR_TAG -f
          echo "Updated $MAJOR_TAG tag to point to ${{ github.event.release.tag_name }} tag."