changelog.yml

name: Update Plugin Changelog

on:
  pull_request:
    types:
      - closed

jobs:
  update-changelog:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v3

      - name: Generate Formatted Changelog
        run: |
          # Check if CHANGELOG.md exists
          if [ ! -f "CHANGELOG.md" ]; then
            echo "CHANGELOG.md file not found"
            exit 1
          fi

          # Extract the changelog content starting from '# Changelog'
          START_LINE=$(grep -n "^# Changelog" CHANGELOG.md | cut -d':' -f1)
          if [ -z "$START_LINE" ]; then
            echo "No '# Changelog' section found in CHANGELOG.md"
            exit 1
          fi

          # Extract the changelog entries, starting from the first '## ' section
          tail -n +$((START_LINE + 1)) CHANGELOG.md > changelog_entries.txt

          # Format the changelog entries into the desired format
          awk '
          BEGIN { print "== Changelog ==" }
          /^##/ {
            if (version != "") {
              print formatted_changelog;
            }
            version = $2;
            date = $4;
            formatted_changelog = "= " version " - " date " =";
            next;
          }
          /^- / {
            gsub(/^- /, "");
            formatted_changelog = formatted_changelog "\n" $0;
          }
          END {
            print formatted_changelog;
          }
          ' changelog_entries.txt > formatted_changelog.txt

          echo "Generated formatted changelog:"
          cat formatted_changelog.txt

      - name: Update readme.txt
        run: |
          # Check if readme.txt exists
          if [ ! -f "readme.txt" ]; then
            echo "readme.txt file not found"
            exit 1
          fi

          # Remove existing '== Changelog ==' and everything below it
          sed -i '/== Changelog ==/,$d' readme.txt
          
          # Add the new formatted changelog content
          cat formatted_changelog.txt >> readme.txt

      - name: Commit and Push Changes to GitHub
        run: |
          git config --global user.name "GitHub Actions"
          git config --global user.email "github-actions@github.com"
          git add readme.txt
          git commit -m "Update changelog after merging PR #${{ github.event.pull_request.number }}" || echo "No changes to commit"
          git push origin development || echo "Nothing to push"

      - name: Cleanup formatted changelog
        run: |
          # Delete the formatted_changelog.txt file
          if [ -f "formatted_changelog.txt" ]; then
            rm formatted_changelog.txt
          fi