name: Test

# nfogen ships examples/*.toml next to the .nfo each one produces, which makes
# them a golden fixture: regenerate and compare. A change to layout, banner or
# encoding that was not intended shows up as a diff in a committed file rather
# than in someone's release notes.
on:
  pull_request:
  push:
    branches: [main]

permissions:
  contents: read

jobs:
  examples:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      # 3.11+ for tomllib, which nfogen needs to read a .toml config at all.
      - uses: actions/setup-python@v7
        with:
          python-version: '3.13'

      - name: Syntax
        run: python -m compileall -q nfogen.py

      - name: Examples regenerate byte for byte
        run: |
          set -euo pipefail
          fail=0
          for toml in examples/*.toml; do
            base="$(basename "$toml" .toml)"
            [ -f "examples/$base.nfo" ] || continue
            python nfogen.py -c "$toml" -o "/tmp/$base.nfo" --no-input
            if ! diff -u "examples/$base.nfo" "/tmp/$base.nfo"; then
              echo "::error file=examples/$base.nfo::regenerated output differs from the committed example"
              fail=1
            fi
          done
          exit "$fail"