wails/.github/workflows/changelog-validation-v3.yml

name: Changelog Validation (v3)

on:
  pull_request:
    branches: [ v3-alpha ]
  workflow_dispatch:
    inputs:
      pr_number:
        description: 'PR number to validate (for manual testing)'
        required: true
        type: string

jobs:
  validate-changelog:
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request' || github.event.inputs.pr_number
    
    permissions:
      contents: write
      pull-requests: write
      
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        ref: ${{ github.event.pull_request.head.sha || format('refs/pull/{0}/head', github.event.inputs.pr_number) }}
        fetch-depth: 0
        token: ${{ secrets.GITHUB_TOKEN }}
        
    - name: Setup Go
      uses: actions/setup-go@v4
      with:
        go-version: '1.23'
        
    - name: Get PR information
      id: pr_info
      run: |
        if [ "${{ github.event_name }}" = "pull_request" ]; then
          echo "pr_number=${{ github.event.pull_request.number }}" >> $GITHUB_OUTPUT
          echo "base_ref=${{ github.event.pull_request.base.ref }}" >> $GITHUB_OUTPUT
        else
          echo "pr_number=${{ github.event.inputs.pr_number }}" >> $GITHUB_OUTPUT
          echo "base_ref=v3-alpha" >> $GITHUB_OUTPUT
        fi
        
    - name: Check if changelog was modified
      id: changelog_check
      run: |
        git fetch origin ${{ steps.pr_info.outputs.base_ref }}
        if git diff --name-only origin/${{ steps.pr_info.outputs.base_ref }}..HEAD | grep -q "v3/UNRELEASED_CHANGELOG.md"; then
          echo "changelog_modified=true" >> $GITHUB_OUTPUT
          echo "✅ UNRELEASED_CHANGELOG.md was modified in this PR"
        else
          echo "changelog_modified=false" >> $GITHUB_OUTPUT
          echo "⚠️ UNRELEASED_CHANGELOG.md was not modified"
        fi
        
    - name: Comment on PR about missing changelog
      if: steps.changelog_check.outputs.changelog_modified == 'false' && github.event_name == 'pull_request'
      uses: actions/github-script@v7
      with:
        script: |
          const author = context.payload.pull_request.user.login;
          const message = '## ⚠️ Missing Changelog Update\n\n' +
            `Hi @${author}, please update \`v3/UNRELEASED_CHANGELOG.md\` with a description of your changes.\n\n` +
            'This helps us keep track of changes for the next release.';
          
          await github.rest.issues.createComment({
            issue_number: ${{ steps.pr_info.outputs.pr_number }},
            owner: context.repo.owner,
            repo: context.repo.repo,
            body: message
          });