publish-github-release.yml

---
name: Publish Github Release

on:
  push:
    branches:
      - main
    paths:
      - 'Dockerfile'

jobs:
  release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
        with:
          ssh-key: "${{secrets.SSH_KEY}}"

      - name: Extract Jenkins ssh-agent version
        id: jenkins_version
        run: |
          VERSION=$(grep 'FROM jenkins/ssh-agent:' Dockerfile | \
            sed -n 's/FROM jenkins\/ssh-agent:\(.*\)@sha256.*/\1/p')
          echo "Extracted VERSION=${VERSION}"
          echo "VERSION=$VERSION" >> $GITHUB_ENV

      - name: Check if release already exists
        id: check_release
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7
        with:
          script: |
            const { data: releases } = await github.rest.repos.listReleases({
              owner: context.repo.owner,
              repo: context.repo.repo,
            });
            const exists = releases.some(release => release.tag_name === process.env.VERSION);
            console.log(`Release exists: ${exists}`);
            if (exists) {
              core.setOutput('exists', 'true');
            } else {
              core.setOutput('exists', 'false');
            }
        env:
          VERSION: ${{ env.VERSION }}

      - name: Push tag
        if: steps.check_release.outputs.exists == 'false' && env.VERSION != ''
        run: |
          git config --local user.email "action@github.com"
          git config --local user.name "GitHub Action"
          git tag -a ${{ env.VERSION }} -m "${{ env.VERSION }}"
          git push origin --tags

      - name: Create release
        if: steps.check_release.outputs.exists == 'false' && env.VERSION != ''
        uses: softprops/action-gh-release@9d7c94cfd0a1f3ed45544c887983e9fa900f0564 # v2
        with:
          tag_name: ${{ env.VERSION }}
          generate_release_notes: true
          make_latest: true
          draft: false
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}