Create GitHub Actions workflow remove-npm-pr-tags.yaml (#312)

name: Remove npm PR tags

on:

  pull_request_target:

    types:

      - closed

jobs:

  remove-pr-tags:

    runs-on: ubuntu-latest

    steps:

      - name: Checkout repository

        uses: actions/checkout@v4

      - name: Install pnpm

        uses: pnpm/action-setup@v4

        with:

          version: 10

      - name: Setup Node.js

        uses: actions/setup-node@v4

        with:

          node-version: lts/*

          cache: 'pnpm'

      - name: Remove PR tags from npm

        # Remove tags in fedify packages if exists

        run: |

          TAG="pr-${PR_NUMBER}"

          pnpm list --depth -1 -r --json | jq -r '.[].name | select(.)' | while IFS= read -r PKG; do

            if npm dist-tag ls "$PKG" | grep -q "^$TAG:" ; then

              npm dist-tag rm "$PKG" "$TAG"

              echo "Removed $TAG from $PKG"

            else

              echo "Tag $TAG does not exist on $PKG"

            fi

          done

        env:

          NPM_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }}

          PR_NUMBER: ${{ github.event.pull_request.number }}