name: Check vendor

on:
  workflow_dispatch: # allows manual triggering
  push:
    branches:
      - master
    paths: [
      'vendor/**',
      'scripts/sync_vendor.py'
    ]

  pull_request:
    types: [opened, synchronize, reopened]
    paths: [
      'vendor/**',
      'scripts/sync_vendor.py'
    ]

jobs:
  check-vendor:
    runs-on: ubuntu-slim

    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v6
        with:
          python-version: '3.x'

      - name: Run vendor sync
        run: |
          set -euo pipefail
          python3 scripts/sync_vendor.py

      - name: Check for changes
        run: |
          set -euo pipefail
          # detect modified or untracked files
          changed=$(git status --porcelain --untracked-files=all || true)
          if [ -n "$changed" ]; then
            echo "Vendor sync modified files:"
            echo "$changed" | awk '{ print $2 }' | sed '/^$/d'
            echo "Failing because vendor files mismatch. Please update scripts/sync_vendor.py"
            exit 1
          else
            echo "Vendor files are up-to-date."
          fi
