copy-devcontainer-settings.yml

name: Copy Devcontainer Settings

on:
  workflow_dispatch:
    inputs:
      target_repo:
        description: 'The name of the target repository (e.g., your-repo)'
        required: true
        type: string
      checkout_branch:
        description: 'The branch to checkout in the target repository (e.g., main, develop)'
        default: 'main'
        type: string
      push_branch:
        description: 'The branch to push changes to in the target repository (e.g., suggested-update)'
        default: 'suggested-update'
        type: string

jobs:
  copy_devcontainer_settings:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
      
    steps:
      - name: Checkout Target Repo
        uses: actions/checkout@v4
        with:
          repository: ${{ github.repository_owner }}/${{ github.event.inputs.target_repo }}
          token: ${{ secrets.PAT }}
          ref: ${{ github.event.inputs.checkout_branch }}
          
      - name: Checkout Settings Repo (Current Repo)
        uses: actions/checkout@v4
        with:
          path: settings_repo

      - name: Copy Devcontainer Files (Overwrite existing)
        run: |
          mkdir -p .devcontainer
          cp -rf settings_repo/.devcontainer/* ./.devcontainer/  
          rm -rf settings_repo

      - name: Configure Git
        run: |
          git config --global user.name "github-actions[bot]"
          git config --global user.email "github-actions[bot]@users.noreply.github.com"

      # - name: Checkout or Create Push Branch # Improved Branch Handling
      #   run: |
      #     git fetch origin ${{ github.event.inputs.push_branch }} || git checkout --orphan ${{ github.event.inputs.push_branch }}
      #     echo "new_branch=${{ github.event.inputs.push_branch }}" >> $GITHUB_ENV

      - name: Check if Push Branch Exists (Remote Check)
        id: check_branch
        run: |
          if git ls-remote --heads origin ${{ github.event.inputs.push_branch }} | wc -l; then 
            timestamp=$(date +%s)
            echo "${{ github.event.inputs.push_branch }}-${timestamp}"
            new_branch_name="${{ github.event.inputs.push_branch }}-${timestamp}"
            echo "new_branch=${new_branch_name}" >> $GITHUB_ENV
          else
            echo "new_branch=${{ github.event.inputs.push_branch }}" >> $GITHUB_ENV
          fi

      - name: Commit and Push Changes to Target Repo
        run: |
          git checkout -b ${{ env.new_branch }}
          git add .
          commit_title="chore(devcontainer): Update devcontainer settings"
          commit_body="From: ${{ github.server_url }}/${{ github.repository }}"  
          git commit -m "${commit_title}" -m "${commit_body}"
          git push -u origin ${{ env.new_branch }}

      - name: Create Pull Request
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.PAT }}
          script: |
            const headBranch = '${{ env.new_branch }}';
            const baseBranch = '${{ github.event.inputs.checkout_branch }}';
            const targetRepo = '${{ github.event.inputs.target_repo }}';

            return github.rest.pulls.create({
              owner: context.repo.owner,  // Use the owner from the current context
              repo: targetRepo,           
              title: 'Update devcontainer settings',
              head: headBranch,
              base: baseBranch,
              body: `Automated update of devcontainer settings from ${{ github.server_url }}/${{ github.repository }}`
            });