version: ~> 1.0

# If the language is set to C or C++, Travis defines and exports CC
# and CXX *after* we have defined our environment variables via 'env'.
language: minimal

# 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:
  - dist
  - check

# The 'check' jobs do not need the repo at all, only the 'dist'
# 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: dist
      name: "Make dist"
      git:
        clone: true
      dist: bionic
      script:
        - sudo apt-get install -qq autoconf automake autopoint flex gettext gperf graphviz help2man m4 texinfo
        - autoconf --version
        - automake --version
        - autopoint --version
        - dot -V
        - gettext --version
        - gperf --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

        # As of 2021-08, we don't have Autoconf 2.71 on Ubuntu.
        - sed -i 's/AC_PREREQ(\[2\.71])/AC_PREREQ([2.69])/g' configure.ac
        - ./bootstrap
        - ./configure --enable-gcc-warnings || { cat config.log && false; }
        - make -j2
        - make -j2 dist-xz
        # Can help understanding why we get "dirty" tarballs.
        - git status
        - git diff
        - 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).
        #
        # So for the sake of the 'check' jobs (that don't even have the repo at all), also expose this
        # tarball on a name that only depends on the Travis build number.
        #
        # Without -b -, exit status is always 0.
        #
        # If we rerun a job that was already uploaded, 'ln -s' will fail: remove beforehand.
        - sftp -b - bison@sftp.lrde.epita.fr <<< "put $dist"$'\n'"-rm bison-$TRAVIS_BUILD_NUMBER.tar.xz"$'\n'"ln -s $dist bison-$TRAVIS_BUILD_NUMBER.tar.xz"

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

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

    - name: "GCC 11 -O3"
      stage: check
      os: linux
      dist: bionic
      addons: &gcc11
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
          packages: g++-11
      env:
        - CC=gcc-11
        - CXX=g++-11
        - 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 11 libc++ and ASAN part 1"
      stage: check
      os: linux
      dist: bionic
      addons: &clang11
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
            - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-11 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
          packages:
            - clang-11
            - libc++-11-dev
            - libc++abi-11-dev
      env:
        # Do not use ASAN with ubuntu's libc++: https://bugs.llvm.org/show_bug.cgi?id=17379
        - CC='clang-11 -fsanitize=address'
        - CXX='clang++-11 -fsanitize=address -stdlib=libc++'
        - PART=1

    - name: "Clang 11 libc++ and ASAN part 2"
      stage: check
      os: linux
      dist: bionic
      addons: *clang11
      env:
        # Do not use ASAN with ubuntu's libc++: https://bugs.llvm.org/show_bug.cgi?id=17379
        - CC='clang-11 -fsanitize=address'
        - CXX='clang++-11 -fsanitize=address -stdlib=libc++'
        - PART=2

    # See https://github.com/simd-everywhere/simde/blob/master/.travis.yml
    # and https://software.intel.com/content/www/us/en/develop/documentation/get-started-with-intel-oneapi-render-linux/top/configure-your-system.html.
    - name: "ICC"
      stage: check
      os: linux
      compiler: icc
      env:
        - CC=icc
        - CXX=icpc
      install:
        - source /opt/intel/oneapi/compiler/latest/env/vars.sh
      addons:
        apt:
          sources:
          - sourceline: 'deb https://apt.repos.intel.com/oneapi all main'
            key_url: 'https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB'
          packages:
          - intel-oneapi-icc

    - name: "ARM64: GCC 11 -O2 part 1"
      stage: check
      os: linux
      arch: arm64
      dist: bionic
      addons: *gcc11
      env:
        - CC=gcc-11
        - CXX=g++-11
        - CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O2 CXXFLAGS=-O2'
        - PART=1

    - name: "PPC64le: GCC 11 -O2 part 1"
      stage: check
      os: linux
      arch: ppc64le
      dist: bionic
      addons:
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
          packages: g++-11
      env:
        - CC=gcc-11
        - CXX=g++-11
        - CONFIGUREFLAGS='CFLAGS=-O2 CXXFLAGS=-O2'
        - PART=1

    - name: "s390x: GCC 11 -O2 part 1"
      stage: check
      os: linux
      arch: s390x
      dist: bionic
      addons: *gcc11
      env:
        - CC=gcc-11
        - CXX=g++-11
        - CONFIGUREFLAGS='CFLAGS=-O2 CXXFLAGS=-O2'
        - PART=1

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

    - name: "GCC 10 with sanitizers part 1"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
          packages: g++-10
      env:
        - CC='gcc-10 -fsanitize=undefined,address -fno-omit-frame-pointer'
        - CXX='g++-10 -fsanitize=undefined,address -fno-omit-frame-pointer'
        - CONFIGUREFLAGS='CFLAGS=-O1 CXXFLAGS=-O1'
        - PART=1

    # With glr2.cc, we run out of time with the full test suite.
    - name: "GCC 9 part 1"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
          packages: g++-9
      env:
        - CC=gcc-9
        - CXX=g++-9
        - PART=1

    # With glr2.cc, we run out of time with the full test suite.
    - name: "GCC 8 part 1"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          packages: g++-8
      env:
        - CC=gcc-8
        - CXX=g++-8
        - PART=1

    - name: "GCC 7"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          packages: g++-7
      env:
        - CC=gcc-7
        - CXX=g++-7

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

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

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

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

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

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

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

    - name: "Clang 10 -O3, libc++, part 1"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
            - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-10 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
          packages:
            - clang-10
            - libc++-10-dev
            - libc++abi-10-dev
      env:
        - CC='clang-10'
        - CXX='clang++-10 -stdlib=libc++'
        - CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'
        - PART=1

    - name: "Clang 9 and libc++"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          sources:
            # See https://github.com/travis-ci/apt-source-safelist/issues/410.
            - sourceline: 'ppa:ubuntu-toolchain-r/test'
            - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main'
              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
          packages:
            - clang-9
            - libc++-9-dev
            - libc++abi-9-dev
      env:
        - CC='clang-9'
        - CXX='clang++-9 -stdlib=libc++'

    - name: "Clang 8 and libc++"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          packages:
            - clang-8
            - libc++-8-dev
            - libc++abi-8-dev
      env:
        - CC=clang-8
        - CXX='clang++-8 -stdlib=libc++'

    - name: "Clang 7 and libc++"
      stage: check
      os: linux
      dist: bionic
      addons:
        apt:
          packages:
            - clang-7
            - libc++-7-dev
            - libc++abi-7-dev
      env:
        - CC=clang-7
        - CXX='clang++-7 -stdlib=libc++'

    - name: "Clang 6 and libc++"
      stage: check
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - llvm-toolchain-xenial-6.0
            - ubuntu-toolchain-r-test
          packages:
            - clang-6.0
            - libc++-dev
      env:
        - CC=clang-6.0
        - CXX='clang++-6.0 -stdlib=libc++'

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

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

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

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

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

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

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

    - name: "Clang 3.4"
      stage: check
      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.
        - CC=/usr/bin/clang
        - CXX=/usr/bin/clang++

    - name: "Clang 3.3"
      stage: check
      os: linux
      # Not available on Xenial.
      dist: trusty
      addons:
        apt:
          packages: clang-3.3
      env:
        # See comment for 3.4.
        - 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 'check' jobs, but not the 'dist' one.
script:
  # Beware not too leak $SSH_PRIVATE_KEY.
  # - env
  - sudo apt-get install -qq doxygen flex m4
  # Install and activate dmd.
  - mkdir -p ~/dlang && wget https://dlang.org/install.sh -O ~/dlang/install.sh
  - source $(source ~/dlang/install.sh dmd -a) || true

  - $CC --version
  - $CXX --version
  - dmd --version || true
  - 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-2} = 2; 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