after-merge-dependabot.yml

name: after-merge-dependabot

on:
  pull_request_target:
    types: [closed]

jobs:
  check:
    if: github.event.pull_request.merged && github.actor == 'dependabot[bot]'
    runs-on: ubuntu-latest
    concurrency:
      group: dependabot-after-merge
      cancel-in-progress: true
    steps:
      - name: Fetch dependabot metadata
        id: dependabot-metadata
        uses: dependabot/fetch-metadata@v1.6.0
        with:
          github-token: "${{ secrets.GITHUB_TOKEN }}"

      - uses: oprypin/find-latest-tag@v1
        id: octokit
        with:
          repository: ${{ github.repository }}
          prefix: v

      - name: Parse last release
        id: semver_parser
        uses: booxmedialtd/ws-action-parse-semver@v1
        with:
          input_string: '${{ steps.octokit.outputs.tag }}'
          version_extractor_regex: 'v(.*)$'

      - name: Compute tag
        id: compte_tag
        run: |
          major=${{ steps.semver_parser.outputs.major }}
          minor=${{ steps.semver_parser.outputs.minor }}
          patch=${{ steps.semver_parser.outputs.patch }}
          if [ "${{ steps.dependabot-metadata.outputs.update-type  }}" == "version-update:semver-minor" ]; then
            minor=$((minor+1))
            patch=0
            echo "::warning::bumping minor version"
          elif [ "${{ steps.dependabot-metadata.outputs.update-type  }}" == "version-update:semver-patch" ]; then
            patch=$((patch+1))
            echo "::warning::bumping patch version"
          fi
          tag="v${major}.${minor}.${patch}"
          echo "::set-output name=tag::${tag}"
          echo "::warning::tag == ${tag}"

      - name: Create tag
        uses: tvdias/github-tagger@v0.0.2
        if: steps.compte_tag.outputs.tag != steps.semver_parser.outputs.fullversion
        with:
          repo-token: "${{ secrets.AUTO_MERGE_TOKEN }}"
          tag: "${{ steps.compte_tag.outputs.tag }}"