ci-release.yaml

name: CI - Release
on:
  push:
    tags:
      - v*
jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      # fetch tags
      - name: Checkout tags
        run: |
          if git rev-parse --is-shallow-repository | grep -q 'true'; then
            git fetch --prune --unshallow --tags -f
          else
            git fetch --prune --tags -f
          fi
      # if the action is a push, diff with the previous main commit
      - name: Build changelog
        id: build_changelog
        run: |
          echo "====== build changelog ======"
          # create changelog file
          echo "# What's Changed" > CHANGELOG.md
          # check total app tags and the last commit tag
          n_tags=`git tag -l 'v*' --sort=-v:refname | wc -l`
          prev_tag=`git tag -l 'v*' --sort=-v:refname | sed '2q;d'`
          if [ $n_tags -eq 1 ]; then
            last_commit=`git rev-list --max-parents=0 HEAD`
          else
            last_commit=`git rev-list -n 1 $prev_tag`
          fi
          # fill changelog with commit descriptions
          # set max tries equal to the maximum of commits as protection
          max_tries=`git rev-list --count HEAD`
          i=0
          while [ `git rev-parse HEAD~$i` != $last_commit ] && [ $i -lt $((max_tries-1)) ]
          do
            echo '- ' `git show -s --format=%s HEAD~$i` >> CHANGELOG.md
            i=$((i+1))
          done
          # set full changelog url
          echo >> CHANGELOG.md
          compare=""
          if [ $n_tags -eq 1 ]; then
            compare=$last_commit
          else
            compare=$prev_tag
          fi
          compare="${compare}...`git tag -l 'v*' --sort=-v:refname | sed '1q;d'`"
          echo "**Full Changelog**: https://github.com/boxfish-studio/sugar-rush/compare/${compare}" >> CHANGELOG.md
      - name: Create Release
        uses: actions/create-release@v1.1.4
        env:
          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Sugar Rush ${{ github.ref }}
          body_path: CHANGELOG.md