vshn/k8up

name: Docs

on:
  push:
    branches:
      - master
    tags:
      - "v*"
    paths-ignore:
      - charts/**

jobs:
  antora:
    runs-on: ubuntu-latest
    if: ${{ contains(github.ref, 'tags') }}
    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 0
    - name: Configure Git
      run: |
        git config user.name "Antora via GitHub Actions"
        git config user.email "actions@github.com"

    - name: Parse semver string
      id: semver
      uses: booxmedialtd/ws-action-parse-semver@v1
      with:
        input_string: ${{ github.ref }}
        version_extractor_regex: '\/v(.*)$'
    - name: Set variables
      run: |
        echo "MINOR_VERSION=${{ steps.semver.outputs.major }}.${{ steps.semver.outputs.minor }}" >> $GITHUB_ENV
        echo "BRANCH_NAME=docs/v${{ steps.semver.outputs.major }}.${{ steps.semver.outputs.minor }}" >> $GITHUB_ENV
    - name: Set branch name for Prerelease
      if: ${{ steps.semver.outputs.prerelease != '' }}
      run: echo "BRANCH_NAME=${{ env.BRANCH_NAME }}-rc" >> $GITHUB_ENV

    - name: Checkout remote branch if exists
      run: git checkout ${{ env.BRANCH_NAME }}
      continue-on-error: true
    - name: Rebase if possible
      run: git rebase ${GITHUB_REF##*/} ${{ env.BRANCH_NAME }}
      continue-on-error: true
    - name: Create new branch if not existing
      run: git switch --create ${{ env.BRANCH_NAME }}
      continue-on-error: true

    - name: Patch Antora file for Release
      run: |
        yq eval 'del(.prerelease) | del (.display_version) | .version = "${{ env.MINOR_VERSION }}" | .asciidoc.attributes.releaseVersion = "v${{ steps.semver.outputs.fullversion }}"' -i docs/antora.yml
      if: ${{ steps.semver.outputs.prerelease == '' }}
    - name: Patch Antora file for Prerelease
      run: |
        yq eval 'del (.display_version) | .version = "${{ env.MINOR_VERSION }}" | .prerelease = "-${{ steps.semver.outputs.prerelease }}" | .asciidoc.attributes.releaseVersion = "v${{ steps.semver.outputs.fullversion }}"' -i docs/antora.yml
        cat docs/antora.yml
      if: ${{ steps.semver.outputs.prerelease != '' }}

    - name: Commit
      run: git commit --all --message "Update version for Antora"
      continue-on-error: true
    - name: Push
      run: git push --atomic --force --set-upstream origin ${{ env.BRANCH_NAME }}

    - name: Cleanup prerelease branch if existing
      if: ${{ steps.semver.outputs.prerelease == '' }}
      run: git push origin --delete ${{ env.BRANCH_NAME }}-rc
      continue-on-error: true