release_notes.yml

name: Update Release Notes from Fastlane Metadata

on:
  release:
    types: [published]

jobs:
  update-release-notes:
    runs-on: ubuntu-latest

    steps:
      # Step 1. Check out the repository so that we have access to all the files.
      - name: Checkout repository
        uses: actions/checkout@v3

      # Step 2. Extract the version code from pubspec.yml.
      # Assumes your pubspec.yml contains a line like: version: 1.0.0+123
      - name: Extract version code from pubspec.yml
        id: extract_version
        run: |
          echo "Extracting version code from pubspec.yml..."
          # Extract everything after the plus sign.
          VERSION_CODE=$(grep '^version:' pubspec.yaml | sed 's/.*+//')
          if [ -z "$VERSION_CODE" ]; then
            echo "Unable to extract version code from pubspec.yml"
            exit 1
          fi
          echo "VERSION_CODE=${VERSION_CODE}" >> $GITHUB_ENV
          echo "::set-output name=version_code::$VERSION_CODE"
          echo "Extracted version code: $VERSION_CODE"

      # Optional: display the version code.
      - name: Display version code
        run: echo "Version code is ${{ env.VERSION_CODE }}"

      # Step 3. Verify the changelog file exists using the extracted version code.
      - name: Verify changelog file exists
        run: |
          FILE_PATH="fastlane/metadata/android/en-US/changelogs/${{ env.VERSION_CODE }}.txt"
          if [ ! -f "$FILE_PATH" ]; then
            echo "Changelog file not found at $FILE_PATH"
            exit 1
          fi
          echo "Found changelog file at $FILE_PATH"

      # Step 4. Use the GitHub CLI to update the release with the changelog contents.
      - name: Update release notes using GitHub CLI
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          FILE_PATH="fastlane/metadata/android/en-US/changelogs/${{ env.VERSION_CODE }}.txt"
          echo "Updating release notes from file: $FILE_PATH"
          echo "Changelog content:"
          cat "$FILE_PATH"
          # Update the release (the release tag is available from the event payload)
          gh release edit "${{ github.event.release.tag_name }}" --notes-file "$FILE_PATH"