.travis.yml

sudo: required
dist: trusty

notifications:
  email: false

language: generic

env:
  global:
    - MPI=mpich
#  - MPI=openmpi
# Open MPI is disabled until there is a way to install a reasonably recent
# version, as 1.6.5 is known to have bugs that lead to incorrect behavior in
# Elemental for complex data despite attempts at performing soft casts
# to twice as many entries of real data (with the exact cause unfortunately
# currently unknown)
    - PATH=/usr/lib/ccache:$PATH

cache:
  directories:
    - $HOME/.ccache

matrix:
  include:
    # GCC 5
    - env: CC=gcc-5 CXX=g++-5 F77=gfortran-5
      addons: { apt: { 
        sources: [ "ubuntu-toolchain-r-test", { sourceline: "ppa:dzombie/ccache" } ],
        packages: [ "ccache", "gcc-5", "g++-5", "gfortran-5", "libstdc++-5-dev" ]
      } }

    # GCC 8
    - env: CC=gcc-8 CXX=g++-8 F77=gfortran-8
      addons: { apt: { 
        sources: [ "ubuntu-toolchain-r-test", { sourceline: "ppa:dzombie/ccache" } ],
        packages: [ "ccache", "gcc-8", "g++-8", "gfortran-8", "libstdc++-8-dev" ]
      } }

    # Clang 3.8
    - env: CC=clang-3.8 CXX=clang++-3.8 F77=gfortran-5
      addons: { apt: { 
        sources: [ "ubuntu-toolchain-r-test", { sourceline: "ppa:dzombie/ccache" } ],
        packages: [ "ccache", "gcc-5", "g++-5", "gfortran-5", "libstdc++-5-dev", "clang-3.8" ]
      } }

    # Clang 4.0
    - env: CC=clang-4.0 CXX=clang++-4.0 F77=gfortran-8
      addons: { apt: { 
        sources: [ "ubuntu-toolchain-r-test", "llvm-toolchain-trusty-4.0", { sourceline: "ppa:dzombie/ccache" } ],
        packages: [ "ccache", "gcc-8", "g++-8", "gfortran-8", "libstdc++-8-dev", "clang-4.0" ]
      } }
    
    # Clang 6.0
    - env: CC=clang-6.0 CXX=clang++-6.0 F77=gfortran-8
      addons: { apt: { 
        sources: [ "ubuntu-toolchain-r-test", "llvm-toolchain-trusty-6.0", { sourceline: "ppa:dzombie/ccache" } ],
        packages: [ "ccache", "gcc-8", "g++-8", "gfortran-8", "libstdc++-8-dev", "clang-6.0" ]
      } }
    
  allow_failures:
    - env: CC=clang-6.0 CXX=clang++-6.0 F77=gfortran-8 # compiler crash

install:
  - sh travis/install-mpi.sh $MPI

before_script:
  # ccache symlinks are created in "before_script:" section because they are lost after "install:" section
  # manually add symlinks to versioned clang because of https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=867705
  - >
    sudo update-ccache-symlinks &&
    for cc in /usr/bin/clang-[0-9\.]* /usr/bin/clang++-[0-9\.]* ; do
        if [ -e "$cc" ]; then
          lnk=$(basename "$cc");
          if [ ! -e "/usr/lib/ccache/$lnk" ]; then
            sudo ln -s /usr/bin/ccache "/usr/lib/ccache/$lnk";
          fi;
        fi;
    done
  - nproc
  - echo `which $CC`
  - echo `which $CXX`
  - echo `which $F77`
  - cmake --version
  - ctest --version

script:
#  - set -o errexit
  - ccache -s
  - >
    mkdir build && cd build &&
    (
      cmake -DEL_TESTS=ON -DEL_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=~/Install .. ||
      (cat CMakeFiles/CMakeError.log; travis_terminate 1)
    ) &&
    make -j$(nproc) &&
    make install &&
    ctest --output-on-failure &&
    ccache -s