language: cpp

jobs:
  include:

    - &formatting-stage
      stage: Linter + Doxygen + non-debug Ubuntu/gcc-5 test
      env: NAME="clang-format"
      addons:
        apt:
          packages:
            - clang-format-3.8
      install:
      script: |
        # Apparently update-alternatives doesn't work in Travis containers
        mkdir -p priority-symlinks
        ln -s /usr/bin/clang-format-3.8 priority-symlinks/clang-format
        export PATH=${PWD}/priority-symlinks:${PATH}

        # Now we can do the formatting pass
        clang-format --version
        git-clang-format-3.8 "${TRAVIS_BRANCH}"
        git diff > formatted.diff
        if [[ -s formatted.diff ]] ; then
          echo 'Formatting error! The following diff shows the required changes'
          echo 'Use the raw log to get a version of the diff that preserves spacing'
          cat formatted.diff
          exit 1
        fi
        echo 'No formatting errors found'
        exit 0
      before_cache:

    - &linter-stage
      stage: Linter + Doxygen + non-debug Ubuntu/gcc-5 test
      env: NAME="CPP-LINT"
      install:
      script: scripts/travis_lint.sh
      before_cache:

    - stage: Linter + Doxygen + non-debug Ubuntu/gcc-5 test
      env: NAME="DOXYGEN-CHECK"
      addons:
        apt:
          sources:
            - sourceline: 'deb http://packages.cloud.google.com/apt cloud-sdk-trusty main'
              key_url: 'https://packages.cloud.google.com/apt/doc/apt-key.gpg'
          packages:
            - doxygen
            - google-cloud-sdk
      install:
      script: scripts/travis_doxygen.sh
      before_cache:
      after_success:
        # Google Cloud Integration
        - export BRANCH="${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}"
        - openssl aes-256-cbc -k ${GCLOUD_TRAVIS_CBMC_KEY}
          -in gcloud-travis-cbmc.json.enc -out gcloud-travis-cbmc.json -d
        - export G_KEY=${PWD}/gcloud-travis-cbmc.json
        - gcloud auth activate-service-account --key-file ${G_KEY}

        - scripts/publish_doc.sh

    # Ubuntu Linux with glibc using g++-5
    - stage: Linter + Doxygen + non-debug Ubuntu/gcc-5 test
      os: linux
      sudo: false
      compiler: gcc
      cache: ccache
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - libwww-perl
            - g++-5
            - libubsan0
            - parallel
      before_install:
        - mkdir bin ; ln -s /usr/bin/gcc-5 bin/gcc
      # env: COMPILER=g++-5 SAN_FLAGS="-fsanitize=undefined -fno-sanitize-recover -fno-omit-frame-pointer"
      env:
        - COMPILER="ccache /usr/bin/g++-5"
        - EXTRA_CXXFLAGS="-D_GLIBCXX_DEBUG"

    # OS X using g++
    - stage: Test different OS/CXX/Flags
      os: osx
      sudo: false
      compiler: gcc
      cache: ccache
      before_install:
        - HOMEBREW_NO_AUTO_UPDATE=1 brew install ccache parallel
        - export PATH=$PATH:/usr/local/opt/ccache/libexec
      env: COMPILER="ccache g++"

    # OS X using clang++
    - stage: Test different OS/CXX/Flags
      os: osx
      sudo: false
      compiler: clang
      cache: ccache
      before_install:
        - HOMEBREW_NO_AUTO_UPDATE=1 brew install ccache parallel
        - export PATH=$PATH:/usr/local/opt/ccache/libexec
      env:
        - COMPILER="ccache clang++"
        - EXTRA_CXXFLAGS="-Qunused-arguments -fcolor-diagnostics"
        - CCACHE_CPP2=yes

    # Ubuntu Linux with glibc using g++-5, debug mode
    - stage: Test different OS/CXX/Flags
      os: linux
      sudo: false
      compiler: gcc
      cache: ccache
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - libwww-perl
            - g++-5
            - libubsan0
      before_install:
        - mkdir bin ; ln -s /usr/bin/gcc-5 bin/gcc
      # env: COMPILER=g++-5 SAN_FLAGS="-fsanitize=undefined -fno-sanitize-recover -fno-omit-frame-pointer"
      env:
        - COMPILER="ccache /usr/bin/g++-5"
        - EXTRA_CXXFLAGS="-DDEBUG"
      script: echo "Not running any tests for a debug build."

    # Ubuntu Linux with glibc using clang++-3.7, no-debug mode
    - stage: Test different OS/CXX/Flags
      os: linux
      sudo: false
      compiler: clang
      cache: ccache
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.7
          packages:
            - libwww-perl
            - clang-3.7
            - libstdc++-5-dev
            - libubsan0
            - parallel
      before_install:
        - mkdir bin ; ln -s /usr/bin/clang-3.7 bin/gcc
        - export CCACHE_CPP2=yes
      # env: COMPILER=clang++-3.7 SAN_FLAGS="-fsanitize=undefined -fno-sanitize-recover=undefined,integer -fno-omit-frame-pointer"
      env:
        - COMPILER="ccache /usr/bin/clang++-3.7"
        - EXTRA_CXXFLAGS="-Qunused-arguments -fcolor-diagnostics -DNDEBUG"
        - CCACHE_CPP2=yes

    # Ubuntu Linux with glibc using clang++-3.7, debug mode, disable USE_DSTRING
    - stage: Test different OS/CXX/Flags
      os: linux
      sudo: false
      compiler: clang
      cache: ccache
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.7
          packages:
            - libwww-perl
            - clang-3.7
            - libstdc++-5-dev
            - libubsan0
      before_install:
        - mkdir bin ; ln -s /usr/bin/clang-3.7 bin/gcc
        - export CCACHE_CPP2=yes
      # env: COMPILER=clang++-3.7 SAN_FLAGS="-fsanitize=undefined -fno-sanitize-recover=undefined,integer -fno-omit-frame-pointer"
      env:
        - COMPILER="ccache /usr/bin/clang++-3.7"
        - EXTRA_CXXFLAGS="-Qunused-arguments -fcolor-diagnostics -DDEBUG -DUSE_STD_STRING"
        - CCACHE_CPP2=yes
      script: echo "Not running any tests for a debug build."

    # cmake build using g++-5
    - stage: Test different OS/CXX/Flags
      os: linux
      compiler: gcc
      cache: ccache
      env:
        - BUILD_SYSTEM=cmake
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-5
      before_install:
        - mkdir bin ; ln -s /usr/bin/gcc-5 bin/gcc
      install:
        - ccache -z
        - ccache --max-size=1G
        - cmake -H. -Bbuild '-DCMAKE_BUILD_TYPE=Release'  '-DCMAKE_CXX_COMPILER=/usr/bin/g++-5'
        - cmake --build build -- -j4
      script: (cd build; ctest -V -L CORE -j2)

    - stage: Test different OS/CXX/Flags
      os: osx
      compiler: clang
      cache: ccache
      before_install:
        - HOMEBREW_NO_AUTO_UPDATE=1 brew install ccache
        - export PATH=$PATH:/usr/local/opt/ccache/libexec
      env:
        - BUILD_SYSTEM=cmake
        - CCACHE_CPP2=yes
      install:
        - ccache -z
        - ccache --max-size=1G
        - cmake -H. -Bbuild '-DCMAKE_BUILD_TYPE=Release' '-DCMAKE_OSX_ARCHITECTURES=x86_64'
        - cmake --build build -- -j4
      script: (cd build; ctest -V -L CORE -j2)


    # Run Coverity
    - stage: Test different OS/CXX/Flags
      os: linux
      sudo: required
      compiler: gcc
      cache: ccache
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - libwww-perl
            - g++-5
        coverity_scan:
          project:
            name: "diffblue/cbmc"
            description: "Travis build of ${TRAVIS_COMMIT}"
          notification_email: "coverity-scan@diffblue.com"
          build_command_prepend: "make -C src minisat2-download"
          build_command: "make -C src -j2"
          branch_pattern: "develop"
      before_install:
        - |
          if [[ "${TRAVIS_EVENT_TYPE}" != "cron" ]]
          then
            echo "This is not a cron build and build is not needed."
            travis_terminate 0
          fi
        - mkdir bin ; ln -s /usr/bin/gcc-5 bin/gcc
        - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 90
        - g++ --version
      # Coverity runs as part of before_script
      env:
        - NAME="COVERITY_SCAN"
        - COMPILER="ccache g++"
      script: echo "This is coverity build. No need for tests."

  allow_failures:
    - <<: *formatting-stage
    - <<: *linter-stage

install:
  - ccache -z
  - ccache --max-size=1G
  - make -C src minisat2-download
  - make -C src/ansi-c library_check
  - make -C src "CXX=${COMPILER} ${EXTRA_CXXFLAGS}" -j3
  - make -C src "CXX=${COMPILER} ${EXTRA_CXXFLAGS}" -j3 clobber.dir memory-models.dir

script:
  - if [ -e bin/gcc ] ; then export PATH=$PWD/bin:$PATH ; fi ;
  - env UBSAN_OPTIONS=print_stacktrace=1 make -C regression test-parallel "CXX=${COMPILER} ${EXTRA_CXXFLAGS}" -j2 JOBS=2
  - make -C unit "CXX=${COMPILER} ${EXTRA_CXXFLAGS}" -j2
  - make -C unit test

before_cache:
  - ccache -s