release.yml

# This workflow will create a new release every time a new version is encountered in package.json on the main branch

name: Release

on:
  push:
    branches:
      - main

jobs:
  tag:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout commit
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ssh-key: ${{ secrets.HFC_BOT_SSH_KEY }}

      - name: git config
        run: |
          git config user.name hfc-bot
          git config user.email 82871241+hfc-bot@users.noreply.github.com

      - name: Check if tag already exists
        run: |
          # Get version from package.json (head is needed because this also returns "version" npm script line)
          sed -n '/version/s/,*\r*$//p' package.json | cut -d ':' -f2,3 | sed -e 's/^ "//' -e 's/"$//' | head -n 1 > app_version.tmp
          export VERSION_TAG="v$(cat app_version.tmp)"
          echo "package_version=$(cat app_version.tmp)" >> $GITHUB_ENV

          # Check if tag already exists
          if [ $(git tag -l "$VERSION_TAG") ]; then
              echo "Tag already exists, please increment version to create release"
              echo "create_release=no" >> $GITHUB_ENV
          else
              echo "create_release=yes" >> $GITHUB_ENV
          fi

      - name: Generate Changelog
        run: cat CHANGELOG.md | grep -Pzo "## ${{ env.package_version }}\s+((.|\n)+?)(?=\n##\s)" | head -n -1 > ${{ github.workflow }}-CHANGELOG.md

      - name: Create Tag (from hfc-bot)
        if: ${{ env.create_release == 'yes' }}
        run: |
          git tag -a v${{ env.package_version }} -m "v${{ env.package_version }}"
          git push --follow-tags

      - name: Release
        uses: softprops/action-gh-release@master
        if: ${{ env.create_release == 'yes' }}
        with:
          body_path: ${{ github.workflow }}-CHANGELOG.md
          tag_name: v${{ env.package_version }}
          target_commitish: ${{ github.sha }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}