# Travis defines and exports CC and CXX *after* we have defined our
# environment variables via 'env'.  So, do not use 'env' to define them.
# Instead, put their definitions in MATRIX_EVAL, which we eval after the
# definitions from Travis.
language: cpp

env:
  global:
    # ICC serial number.
    # See https://github.com/nemequ/icc-travis.
    secure: 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

# Run in two steps:
# 1. Build the tarball
#    On a modern distro, with all the needed dependencies, including the whole git history.
# 2. Check it on various environments.
#    Less dependencies, and little git content (we would like to have none, but it's not
#    an option on Travis).
stages:
  - compile
  - test

# The 'test' jobs do not need the repo at all, only the 'compile'
# does.  Let's save time, bandwith, energy, and polar bears.
git:
  clone: false

# matrix.include and jobs.include are aliases
# (https://docs.travis-ci.com/user/conditional-builds-stages-jobs/).
jobs:
  include:
    - stage: "compile"
      git:
        clone: true
      dist: xenial
      script:
        - sudo apt-get install -qq autoconf automake autopoint flex gettext graphviz help2man m4 texinfo
        - autoconf --version
        - automake --version
        - autopoint --version
        - dot -V
        - gettext --version
        - help2man --version
        - makeinfo --version
        - m4 --version

        # Travis makes a shallow clone, but we need it in full to build the ChangeLog and apply the fixes in git-log-fix.
        - git fetch --unshallow || true
        - git submodule update --init --recursive

        - ./bootstrap
        - ./configure --enable-gcc-warnings CC="$CC" CXX="$CXX" $CONFIGUREFLAGS || { cat config.log && false; }
        - make -j2
        - make -j2 dist
        - dist=$(echo bison*.xz)
        # Unfortunately we cannot deterministically know the name of the tarball without the full
        # git history (because git describe --abbrev=4 may use more than 4 characters if there are
        # conflicts).  Besides, one day we would like not to depend on the repository at all in the
        # 'test' jobs.  So also expose this tarball on a name that only depends on the Travis build
        # number.
        #
        # Without -b -, exit status is always 0.
        - sftp -b - bison@sftp.lrde.epita.fr <<< "put $dist"$'\n'"ln -s $dist bison-$TRAVIS_BUILD_NUMBER.tar.xz"

    ## ------- ##
    ## First.  ##
    ## ------- ##

    # Start with three completely different environments, to get
    # errors asap.

    - name: "GCC 7 -O3"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-7
      env:
        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7 && CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'"

    # ASAN is time consuming, and we timeout the 50min granted by
    # Travis if we run all the tests in one go.  Run in two parts.
    - name: "Clang 7 libc++ and ASAN part 1"
      stage: test
      os: linux
      dist: xenial
      addons: &clang7
        apt:
          sources:
            - llvm-toolchain-xenial-7
            - ubuntu-toolchain-r-test
          packages:
            - clang-7
            - libc++-7-dev
            - libc++abi-7-dev
      env:
        # Do not use ASAN with ubuntu's libc++: https://bugs.llvm.org/show_bug.cgi?id=17379
        - MATRIX_EVAL="PART=1 CC='clang-7 -fsanitize=address' CXX='clang++-7 -fsanitize=address -stdlib=libc++'"

    - name: "Clang 7 libc++ and ASAN part 2"
      stage: test
      os: linux
      dist: xenial
      addons: *clang7
      env:
        # Do not use ASAN with ubuntu's libc++: https://bugs.llvm.org/show_bug.cgi?id=17379
        - MATRIX_EVAL="PART=2 CC='clang-7 -fsanitize=address' CXX='clang++-7 -fsanitize=address -stdlib=libc++'"

    - name: "ICC"
      stage: test
      # We need the build-aux/install-icc.sh script.
      git:
        clone: true
        submodules: false
        depth: 1
      os: linux
      dist: xenial
      env:
        # ICC's warnings are often very wrong (e.g., it thinks foo ?
        # "bar" : "baz" is char* instead of const char*), so don't try
        # to work around the, and obviously, don't die on them.
        - MATRIX_EVAL="CC=icc && CXX=icpc"
        - MAKE_ARGS='WERROR_CFLAGS= WERROR_CXXFLAGS='


    ## ----- ##
    ## GCC.  ##
    ## ----- ##

    #- name: "GCC 8 with sanitizers"
    #  os: linux
    #  dist: xenial
    #  addons:
    #    apt:
    #      sources:
    #        - ubuntu-toolchain-r-test
    #      packages:
    #        - g++-8
    #  env:
    #    # Can't use UBSAN: I get:
    #    # configure:4951: gcc-8 -fsanitize=undefined,address -fno-omit-frame-pointer conftest.c
    #    # /usr/bin/ld: unrecognized option '--push-state' (on trusty)
    #    # /usr/bin/ld: unrecognized option '--push-state--no-as-needed' (on xenial)
    #    #
    #    # https://stackoverflow.com/questions/50024731/ suggests using the gold linker.
    #    - MATRIX_EVAL="CC='gcc-8 -fsanitize=undefined,address -fno-omit-frame-pointer' CXX='g++-8 -fsanitize=undefined,address -fno-omit-frame-pointer'"

    - name: "GCC 6"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-6
      env:
        - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6"

    - name: "GCC 5"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-5
      env:
         - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"

    - name: "GCC 4.9"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.9
      env:
         - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"

    - name: "GCC 4.8"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.8
      env:
         - MATRIX_EVAL="CC=gcc-4.8 && CXX=g++-4.8"

    - name: "GCC 4.7"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.7
      env:
         - MATRIX_EVAL="CC=gcc-4.7 && CXX=g++-4.7"

    - name: "GCC 4.6"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.6
      env:
         - MATRIX_EVAL="CC=gcc-4.6 && CXX=g++-4.6"

    ## ------- ##
    ## Clang.  ##
    ## ------- ##

    - name: "Clang 6 -O3 and libc++"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - llvm-toolchain-xenial-6.0
            - ubuntu-toolchain-r-test
          packages:
            - clang-6.0
            - libc++-dev
      env:
        - MATRIX_EVAL="CC=clang-6.0 && CXX='clang++-6.0 -stdlib=libc++'"
        - CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'

    - name: "Clang 5"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - llvm-toolchain-xenial-5.0
          packages:
            - clang-5.0
            - libc++-dev
      env:
        - MATRIX_EVAL="CC='clang-5.0' CXX='clang++-5.0'"

    - name: "Clang 4"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - llvm-toolchain-xenial-4.0
          packages:
            - clang-4.0
      env:
        - MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0"

    - name: "Clang 3.9"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - llvm-toolchain-xenial-3.9
          packages:
            - clang-3.9
      env:
        - MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9"

    - name: "Clang 3.8"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.8
          packages:
            - clang-3.8
      env:
        - MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8"

    - name: "CLang 3.7"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.7
          packages:
            - clang-3.7
      env:
        - MATRIX_EVAL="CC=clang-3.7 && CXX=clang++-3.7"

    - name: "Clang 3.6"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.6
          packages:
            - clang-3.6
      env:
        - MATRIX_EVAL="CC=clang-3.6 && CXX=clang++-3.6"

    - name: "Clang 3.5"
      stage: test
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
            - llvm-toolchain-precise-3.5
          packages:
            - clang-3.5
      env:
        - MATRIX_EVAL="CC=clang-3.5 && CXX=clang++-3.5"

    - name: "Clang 3.4"
      stage: test
      os: linux
      # Not available on Xenial.
      dist: trusty
      addons:
        apt:
          packages:
            - clang-3.4
      env:
        # No versioned name installed, but beware that Travis installs
        # a more modern clang earlier in the default PATH.
        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++'

    - name: "Clang 3.3"
      stage: test
      os: linux
      # Not available on Xenial.
      dist: trusty
      addons:
        apt:
          packages:
            - clang-3.3
      env:
        # See comment for 3.4.
        - MATRIX_EVAL='CC=/usr/bin/clang && CXX=/usr/bin/clang++'

## From https://docs.gitlab.com/ce/ci/ssh_keys/#ssh-keys-when-using-the-docker-executor.
## Applies to Travis too.  Applied to all the 'script's (of all the jobs).
before_script:
  - 'which ssh-agent || ( sudo apt-get install openssh-client -y )'
  - eval "$(ssh-agent -s)"
  # $SSH_PRIVATE_KEY is multiline.  Use $'...' to register its value: $'-----BEGIN OPENSSH PRIVATE KEY-----\nXXXXX...\n...==\n-----END OPENSSH PRIVATE KEY-----'.
  - echo "$SSH_PRIVATE_KEY" >/tmp/key.id_rsa
  - chmod 600 /tmp/key.id_rsa
  - ssh-add /tmp/key.id_rsa </dev/null
  - mkdir -p ~/.ssh
  - chmod 700 ~/.ssh
  - echo '|1|bpc51UGxoDZjCPiwRlCStW32trI=|rfh6mLoLZv/vAvOVrpZXI1hTLxg= ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBIR+ckMoJTNXHvAQLHWSfrRnrNJGW2ZR6kr5pBVDGCkz1v1RcQ5rleq0NAt9kS3v4hgnuLiEVnK7KDRzcEH3ikc=' >>~/.ssh/known_hosts
  - chmod 600 ~/.ssh/known_hosts

# Applies only to the jobs that don't have a 'script', i.e., applies to all the 'test' jobs, but not the 'compile' one.
script:
  - eval "$MATRIX_EVAL"
  # Beware not too leak $SSH_PRIVATE_KEY.
  # - env
  - sudo apt-get install -qq doxygen flex m4
  # Install and activate ICC.
  - if [[ $CC == "icc" ]]; then build-aux/install-icc.sh; fi
  - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
  # Install and activate dmd.
  - mkdir -p ~/dlang && wget https://dlang.org/install.sh -O ~/dlang/install.sh
  - source $(source ~/dlang/install.sh dmd -a)

  - $CC --version
  - $CXX --version
  - dmd --version
  - doxygen --version
  - flex --version
  - ld --version
  - m4 --version

  - if [[ -f ~/.bashrc ]]; then source ~/.bashrc; fi
  # Unset this variable, otherwise, Java programs' stderr is cluttered
  # with `Picked up _JAVA_OPTIONS: -Xmx2048m -Xms512m`, which makes
  # the test suite fail.
  - unset _JAVA_OPTIONS

  # Fail fast from now on.
  - set -e
  - sftp bison@sftp.lrde.epita.fr:bison-$TRAVIS_BUILD_NUMBER.tar.xz
  - tar xf bison-$TRAVIS_BUILD_NUMBER.tar.xz
  - dir=$(tar tf bison-$TRAVIS_BUILD_NUMBER.tar.xz | sed 1q)
  - cd $dir
  - mkdir _build
  - cd _build
  - ../configure --enable-gcc-warnings CC="$CC" CXX="$CXX" $CONFIGUREFLAGS || { cat config.log && false; }
  - make -j2 $MAKE_ARGS
  - if test ${PART-1} = 1; then make check                  VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat test-suite.log && cat tests/testsuite.log && false; }; fi
  - if test ${PART-1} = 1; then make maintainer-check-posix VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat tests/testsuite.log && false; }; fi
  - if test ${PART-2} = 2; then make maintainer-check-g++   VERBOSE=1 TESTSUITEFLAGS=-j2 || { cat tests/testsuite.log && false; }; fi

after_script:
  - if [[ $CC == "icc" ]]; then uninstall_intel_software || true; fi