# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: CMake Test

on:
  push:
    branches:
    - main
  pull_request:
  schedule:
    # Triggered nightly at 8:00 AM UTC to re-create the build cache (ccache).
    - cron: '0 8 * * *'
  workflow_dispatch:

jobs:
  run_tests:
    name: Run CMake tests
    # TODO(xinhaoyuan): Bump to 24.04 after https://github.com/llvm/llvm-project/issues/102443
    # is fixed.
    runs-on: ubuntu-22.04
    timeout-minutes: 60
    env:
      CCACHE_BASEDIR: ${{ github.workspace }}
      CCACHE_DIR: ${{ github.workspace }}/.ccache
    strategy:
      matrix:
        mode: ['default', 'fuzzing', 'codelab']
    steps:
      - name: Disable core dumping and piping due to slowness
        run: |
          sudo sysctl -w kernel.core_pattern=""
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Install dependencies
        run: |
          sudo apt-get update && sudo apt-get install -yq \
            ccache clang gcc g++ cmake ninja-build libprotobuf-dev protobuf-compiler
      - name: Restore latest cache
        uses: actions/cache/restore@v4
        with:
          path: ${{ env.CCACHE_DIR }}
          key: cmake-cache-${{ matrix.mode }}
          restore-keys: cmake-cache-${{ matrix.mode }}-
      - name: Check whether FuzzTest can be build using FetchContent
        if: matrix.mode == 'codelab'
        run: |
          CC=clang CXX=clang++ cmake \
            -S codelab \
            -B build_codelab \
            -G Ninja  \
            -D CMAKE_C_COMPILER_LAUNCHER=ccache \
            -D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
            -D CMAKE_BUILD_TYPE=RelWithDebug \
            -D FUZZTEST_REPO="${{ github.event.pull_request.head.repo.full_name || github.repository }}" \
            -D FUZZTEST_REPO_BRANCH="${{ github.head_ref || github.ref_name }}" \
          && cmake --build build_codelab -j $(nproc)
      - name: Run all tests in default mode with clang
        if: matrix.mode == 'default'
        run: |
          CC=clang CXX=clang++ cmake \
            -S . \
            -B build \
            -G Ninja \
            -D CMAKE_C_COMPILER_LAUNCHER=ccache \
            -D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
            -D CMAKE_BUILD_TYPE=RelWithDebug \
            -D FUZZTEST_BUILD_TESTING=on \
          && cmake --build build -j $(nproc) \
          && ctest --test-dir build -j $(nproc) --output-on-failure
      - name: Run all tests in default mode with gcc
        if: matrix.mode == 'default'
        run: |
          CC=gcc CXX=g++ cmake \
            -S . \
            -B build_gcc \
            -G Ninja \
            -D CMAKE_C_COMPILER_LAUNCHER=ccache \
            -D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
            -D CMAKE_BUILD_TYPE=RelWithDebug \
            -D FUZZTEST_BUILD_TESTING=on \
          && cmake --build build_gcc -j $(nproc) \
          && ctest --test-dir build_gcc -j $(nproc) --output-on-failure
      - name: Run end-to-end tests in fuzzing mode
        if: matrix.mode == 'fuzzing'
        run: |
          CC=clang CXX=clang++ cmake \
            -S . \
            -B build \
            -G Ninja \
            -D CMAKE_C_COMPILER_LAUNCHER=ccache \
            -D CMAKE_CXX_COMPILER_LAUNCHER=ccache \
            -D CMAKE_BUILD_TYPE=RelWithDebug \
            -D FUZZTEST_FUZZING_MODE=on \
            -D FUZZTEST_BUILD_TESTING=on \
          && cmake --build build -j $(nproc) \
          && ctest --test-dir build -j $(nproc) --output-on-failure -R "functional_test"
      - name: Save new cache based on main
        if: github.ref == 'refs/heads/main'
        uses: actions/cache/save@v4
        with:
          path: ${{ env.CCACHE_DIR }}
          key: cmake-cache-${{ matrix.mode }}-${{ github.run_id }}