cpp-syntax.yml

name: C++ Syntax Check

on:
  pull_request:
    paths:
      - "src/**/*.cpp"
      - ".github/workflows/cpp-syntax.yml"
  push:
    branches:
      - main
    paths:
      - "src/**/*.cpp"
      - ".github/workflows/cpp-syntax.yml"

jobs:
  syntax-check:
    runs-on: ubuntu-latest

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

      - name: Check C++ source files
        shell: bash
        run: |
          set -euo pipefail

          if [ "${{ github.event_name }}" = "pull_request" ]; then
            mapfile -t files < <(git diff --name-only --diff-filter=ACMRT "origin/${{ github.base_ref }}...HEAD" -- "src/**/*.cpp" | sort)
          else
            mapfile -t files < <(find src -type f -name "*.cpp" | sort)
          fi

          if [ "${#files[@]}" -eq 0 ]; then
            echo "No C++ files found."
            exit 0
          fi

          for file in "${files[@]}"; do
            echo "Checking ${file}"
            g++ -std=c++17 -Wall -Wextra -pedantic -fsyntax-only "${file}"
          done