process-changelog.yml

name: "Release - Changelog"

# This action will run when it is triggered manually
on:
  workflow_dispatch:
    inputs:
      release-version:
        description: "The release version for which the action should process the changelog (e.g. 4.5.0) (default: will try to figure it out)"
        default: 'figure-it-out'
        required: true
        type: string
      release-date:
        description: "The release date in human-readable format (default: 'today')."
        required: false
        default: "today"
        type: string
      action-type:
        description: "Whether this is to amend or generate the changelog entries (default: 'generate')."
        required: true
        default: "generate"
        type: choice
        options:
          - amend
          - generate

defaults:
  run:
    shell: bash

jobs:
  process-changelog:
    name: "Process the changelog"
    runs-on: ubuntu-latest
    env:
      CHANGELOG_ACTION: ${{ inputs.action-type }}
      RELEASE_VERSION: ${{ inputs.release-version }}
      RELEASE_DATE: ${{ inputs.release-date }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: ${{ github.ref }}

      - name: Set Variables
        id: vars
        run: echo "sha_short=$(git rev-parse --short ${{ github.sha }})" >> $GITHUB_OUTPUT

      - name: Set up Git configuration
        run: |
          git config --global user.email "actions@github.com"
          git config --global user.name "github-actions"

      - name: Check for .puprc file and paths.versions
        id: check-puprc
        run: |
          if [ ! -f ".puprc" ]; then
            echo "Error: .puprc file not found" >> $GITHUB_STEP_SUMMARY
            exit 1
          fi
          if ! jq -e '.paths.versions' .puprc > /dev/null; then
            echo "Error: paths.versions not found in .puprc" >> $GITHUB_STEP_SUMMARY
            exit 1
          fi

      - name: Figure out Version
        id: figure_out_version
        run: |
          if [ "$RELEASE_VERSION" == "figure-it-out" ]; then
            existing_version=""
            while read -r version; do
              echo "Processing version info: $version"
              file=$(echo "$version" | jq -r '.file')
              regex=$(echo "$version" | jq -r '.regex')

              existing_version=$(grep -Po "$regex" "$file" | grep -Po '(\d+\.\d+\.\d+(\.\d+)?)')

              if [ -n "$existing_version" ]; then
                  echo "Release version: $existing_version"
                  echo "RELEASE_VERSION=$existing_version" >> $GITHUB_OUTPUT
                  break
              fi
            done < <(jq -c '.paths.versions[]' .puprc)
          else
            echo "Release version: $RELEASE_VERSION"
            echo "RELEASE_VERSION=$RELEASE_VERSION" >> $GITHUB_OUTPUT
          fi

      - name: "Format the release date"
        id: format_date
        run: |
          RELEASE_DATE=$( date "+%Y-%m-%d" -d "$RELEASE_DATE" ) # Release date formatted as YYYY-MM-DD
          echo "Release date: $RELEASE_DATE"
          echo "RELEASE_DATE=$RELEASE_DATE" >> $GITHUB_OUTPUT

      - name: Create new branch
        id: versions
        run: |
          changeBranch="task/process-changelog/${{ steps.format_date.outputs.RELEASE_DATE }}/${{ steps.figure_out_version.outputs.RELEASE_VERSION }}/${{ steps.vars.outputs.sha_short }}"
          git checkout -b "$changeBranch"
          git push origin "$changeBranch"

      - name: "Process changelog"
        id: process_changelog
        uses: ./.github/actions/process-changelog
        with:
          release-version: ${{ steps.figure_out_version.outputs.RELEASE_VERSION }}
          release-date: ${{ steps.format_date.outputs.RELEASE_DATE }}
          action-type: ${{ env.CHANGELOG_ACTION }}

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v6
        id: cpr
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          base: ${{ github.ref }}
          branch: "task/process-changelog/${{ steps.format_date.outputs.RELEASE_DATE }}/${{ steps.figure_out_version.outputs.RELEASE_VERSION }}/${{ steps.vars.outputs.sha_short }}"
          title: "Process changelog for ${{ github.ref }}"
          body: |
            This is an automated PR created by ${{ github.actor }}.
            It was generated by [this GitHub Action](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}).

            ## Changelog
            ${{ steps.process_changelog.outputs.changelog }}
          labels: "automation"
          commit-message: |
            Process changelog for ${{ github.ref }}
            This is an automated PR created by ${{ github.actor }}.
            Generated by: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}
      - name: Check outputs
        if: ${{ steps.cpr.outputs.pull-request-number }}
        run: |
          echo "## Pull Request"  >> $GITHUB_STEP_SUMMARY
          echo "* Number - ${{ steps.cpr.outputs.pull-request-number }}" >> $GITHUB_STEP_SUMMARY
          echo "* URL - [${{ steps.cpr.outputs.pull-request-url }}](${{ steps.cpr.outputs.pull-request-url }})" >> $GITHUB_STEP_SUMMARY