# https://travis-ci.org/patflick/mxx

language: cpp

sudo: false

compiler:
    - gcc
    - clang

# TODO: mpich 2, OpenMPI 1.10
env:
    - MPI=mpich2     # MPI 2.2
    - MPI=mpich3     # MPI 3.0
    - MPI=openmpi16  # MPI 2.2
    - MPI=openmpi18  # MPI 3.0
    - MPI=openmpi18 FAKEBIG=1 # fake BigMPI functions

# clang fails to compile mpich 3.1.4:
matrix:
    exclude:
      - compiler: clang
        env: MPI=mpich3

before_install:
    - pip install --user codecov

addons:
  apt:
    sources:
    - ubuntu-toolchain-r-test
    - llvm-toolchain-precise-3.7
    packages:
    - gdb
    - gcc-4.8
    - g++-4.8
    - clang-3.7

# caching of the whole `local` directory. Can't cache only the one for this
# `env`, because otherwise the different instances will overwrite the cache.
# For the first test-run, the build has to be run sequentially (limit parallel
# workers to 1) so that the cache can be correctly initialized. Once the cache
# is build, parallel workers can be re-enabled.
cache:
  directories:
    - $HOME/local

before_script:
    # set compiler to newer versions
    - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
    - if [ "$CXX" = "clang++" ]; then export CXX="clang++-3.7" CC="clang-3.7"; fi
    # install MPI
    - mkdir -p $HOME/local
    - sh ./conf/travis-install-mpi.sh $MPI
    - ls -r $HOME/local
    # set up MPI location
    - export PATH=$PATH:$HOME/local/$MPI/bin
    - export LIBRARY_PATH=$LIBRARY_PATH:$HOME/local/$MPI/lib
    - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$HOME/local/$MPI/lib
    # print out version information
    - $CXX --version
    - mpiexec --version
    # prepare build mxx
    - mkdir build
    - cd build
    - if [ -z "$FAKEBIG" ]; then cmake -DTRAVIS=ON -DCMAKE_BUILD_TYPE=Debug -DMPI_C_COMPILER=$HOME/local/$MPI/bin/mpicc -DMPI_CXX_COMPILER=$HOME/local/$MPI/bin/mpicxx ../;
      else cmake -DFAKE_BIG_MPI=ON -DTRAVIS=ON -DCMAKE_BUILD_TYPE=Debug -DMPI_C_COMPILER=$HOME/local/$MPI/bin/mpicc -DMPI_CXX_COMPILER=$HOME/local/$MPI/bin/mpicxx ../; fi

script:
    # build mxx and run tests
    - make
    - ./bin/mxx-test-all # run without mpi (= -np 1)
    - mpiexec -np 4 ./bin/mxx-test-all
    - mpiexec -np 13 ./bin/mxx-test-all

after_success:
  # only collect coverage if compiled with gcc
  - if [ "$CXX" = "g++-4.8" ]; then codecov --gcov-exec gcov-4.8; fi
  #- cat "/home/travis/build/patflick/mxx/build/#home#travis#build#patflick#mxx#include#mxx#sort.hpp.gcov"
  #- gdb -batch -ex "b sort.hpp:47" -ex run -ex disas -ex q --args ./bin/mxx-test-sort