deploy.yml

name: Sync main to deploy

on:
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  sync:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout main branch
        uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 0

      - name: Save files from deploy branch
        run: |
          git fetch origin deploy || echo "No deploy branch yet"

          TEMP_DIR="$RUNNER_TEMP/deploytemp"
          mkdir -p "$TEMP_DIR"

          if git ls-remote --exit-code origin deploy; then
            for file in fly.toml .dockerignore; do
              git checkout origin/deploy -- "$file" 2>/dev/null || echo "No $file to copy"
              [ -f "$file" ] && cp "$file" "$TEMP_DIR/" || echo "$file not found"
            done
          fi

      - name: Create/overwrite deploy branch
        run: |
          git checkout -B deploy
          git reset --hard main

      - name: Restore files
        run: |
          TEMP_DIR="$RUNNER_TEMP/deploytemp"
          for file in fly.toml .dockerignore; do
            if [ -f "$TEMP_DIR/$file" ]; then
              cp "$TEMP_DIR/$file" "$file"
            fi
          done

      - name: Commit and push to deploy
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add -A
          git commit -m "Sync main -> deploy (keeping fly.toml and .dockerignore)" || echo "No changes to commit"
          git push -f origin deploy