npm-publish-on-version-change.yml

name: Tag and publish on version change

on:
  push:
    branches:
      - main

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: '21.x'
          registry-url: 'https://npm.pkg.github.com'

      - name: Fetch all tags
        run: git fetch --tags

      - name: Check if version has changed
        run: |
          VERSION=$(npm pkg get version --workspaces=false | tr -d '"')
          if git tag -l "v$VERSION" | grep -q "v$VERSION"; then
            echo "Tag v$VERSION already exists."
            echo "tag_exists=true" >> $GITHUB_ENV
          else
            echo "Tag v$VERSION does not exist."
            echo "tag_exists=false" >> $GITHUB_ENV
            echo "current_version=$VERSION" >> $GITHUB_ENV
          fi

      - name: Tag the commit
        if: env.tag_exists == 'false'
        run: |
          VERSION=${{ env.current_version }}
          git config --global user.name 'github-actions'
          git config --global user.email 'github-actions@github.com'
          git tag -a "v$VERSION" -m "Release version $VERSION"
          git push origin "v$VERSION"

      # - name: Publish to GPR
      #   if: env.tag_exists == 'false'
      #   run: npm publish
      #   env:
      #     NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # TODO setup publishing to npmjs