#!/bin/bash
#
# Copyright 2020, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

set -euox pipefail

readonly LINUX_LATEST_CONTAINER="gcr.io/google.com/absl-177019/linux_hybrid-latest:20250430"
readonly LINUX_GCC_FLOOR_CONTAINER="gcr.io/google.com/absl-177019/linux_gcc-floor:20250430"

if [[ -z ${GTEST_ROOT:-} ]]; then
  GTEST_ROOT="$(realpath $(dirname ${0})/..)"
fi

# Use Bazel Vendor mode to reduce reliance on external dependencies.
# See https://bazel.build/external/vendor and the Dockerfile for
# an explaination of how this works.
if [[ ${KOKORO_GFILE_DIR:-} ]] && [[ -f "${KOKORO_GFILE_DIR}/distdir/googletest_vendor.tar.gz" ]]; then
  DOCKER_EXTRA_ARGS="--mount type=bind,source=${KOKORO_GFILE_DIR}/distdir,target=/distdir,readonly --env=BAZEL_VENDOR_ARCHIVE=/distdir/googletest_vendor.tar.gz ${DOCKER_EXTRA_ARGS:-}"
  BAZEL_EXTRA_ARGS="--vendor_dir=/googletest_vendor ${BAZEL_EXTRA_ARGS:-}"
fi

if [[ -z ${STD:-} ]]; then
  STD="c++17 c++20 c++23"
fi

# Test CMake + GCC
for cmake_off_on in OFF ON; do
  time docker run \
    --volume="${GTEST_ROOT}:/src:ro" \
    --tmpfs="/build:exec" \
    --workdir="/build" \
    --rm \
    --env="CC=/usr/local/bin/gcc" \
    --env=CXXFLAGS="-Werror -Wdeprecated" \
    ${LINUX_LATEST_CONTAINER} \
    /bin/bash -c "
      cmake /src \
        -DCMAKE_CXX_STANDARD=17 \
        -Dgtest_build_samples=ON \
        -Dgtest_build_tests=ON \
        -Dgmock_build_tests=ON \
        -Dcxx_no_exception=${cmake_off_on} \
        -Dcxx_no_rtti=${cmake_off_on} && \
      make -j$(nproc) && \
      ctest -j$(nproc) --output-on-failure"
done

# Test CMake + Clang
for cmake_off_on in OFF ON; do
  time docker run \
    --volume="${GTEST_ROOT}:/src:ro" \
    --tmpfs="/build:exec" \
    --workdir="/build" \
    --rm \
    --env="CC=/opt/llvm/clang/bin/clang" \
    --env=CXXFLAGS="-Werror -Wdeprecated --gcc-toolchain=/usr/local" \
    ${LINUX_LATEST_CONTAINER} \
    /bin/bash -c "
      cmake /src \
        -DCMAKE_CXX_STANDARD=17 \
        -Dgtest_build_samples=ON \
        -Dgtest_build_tests=ON \
        -Dgmock_build_tests=ON \
        -Dcxx_no_exception=${cmake_off_on} \
        -Dcxx_no_rtti=${cmake_off_on} && \
      make -j$(nproc) && \
      ctest -j$(nproc) --output-on-failure"
done

# Do one test with an older version of GCC
time docker run \
  --volume="${GTEST_ROOT}:/src:ro" \
  --workdir="/src" \
  --rm \
  --env="CC=/usr/local/bin/gcc" \
  --env="BAZEL_CXXOPTS=-std=c++17" \
  ${DOCKER_EXTRA_ARGS:-} \
  ${LINUX_GCC_FLOOR_CONTAINER} \
  /bin/bash --login -c "
    /usr/local/bin/bazel test ... \
      --copt=\"-Wall\" \
      --copt=\"-Werror\" \
      --copt=\"-Wuninitialized\" \
      --copt=\"-Wundef\" \
      --copt=\"-Wno-error=pragmas\" \
      --enable_bzlmod=false \
      --features=external_include_paths \
      --keep_going \
      --show_timestamps \
      --test_output=errors \
      ${BAZEL_EXTRA_ARGS:-}"

# Test GCC
for std in ${STD}; do
  for absl in 0 1; do
    time docker run \
      --volume="${GTEST_ROOT}:/src:ro" \
      --workdir="/src" \
      --rm \
      --env="CC=/usr/local/bin/gcc" \
      --env="BAZEL_CXXOPTS=-std=${std}" \
      ${DOCKER_EXTRA_ARGS:-} \
      ${LINUX_LATEST_CONTAINER} \
      /bin/bash --login -c "
        /usr/local/bin/bazel test ... \
          --copt=\"-Wall\" \
          --copt=\"-Werror\" \
          --copt=\"-Wuninitialized\" \
          --copt=\"-Wundef\" \
          --define=\"absl=${absl}\" \
          --enable_bzlmod=true \
          --features=external_include_paths \
          --keep_going \
          --show_timestamps \
          --test_output=errors \
          ${BAZEL_EXTRA_ARGS:-}"
  done
done

# Test Clang
for std in ${STD}; do
  for absl in 0 1; do
    time docker run \
      --volume="${GTEST_ROOT}:/src:ro" \
      --workdir="/src" \
      --rm \
      --env="CC=/opt/llvm/clang/bin/clang" \
      --env="BAZEL_CXXOPTS=-std=${std}" \
      ${DOCKER_EXTRA_ARGS:-} \
      ${LINUX_LATEST_CONTAINER} \
      /bin/bash --login -c "
        /usr/local/bin/bazel test ... \
          --copt=\"--gcc-toolchain=/usr/local\" \
          --copt=\"-Wall\" \
          --copt=\"-Werror\" \
          --copt=\"-Wuninitialized\" \
          --copt=\"-Wundef\" \
          --define=\"absl=${absl}\" \
          --enable_bzlmod=true \
          --features=external_include_paths \
          --keep_going \
          --linkopt=\"--gcc-toolchain=/usr/local\" \
          --show_timestamps \
          --test_output=errors \
          ${BAZEL_EXTRA_ARGS:-}"
  done
done