# See https://github.com/hvr/multi-ghc-travis for more information

language: c

sudo: false

matrix:
  include:
    - env: CABALVER=1.18 CABALUPGR=1.24.* GHCVER=7.4.2
      addons: {apt: {packages: [cabal-install-1.18,ghc-7.4.2], sources: [hvr-ghc]}}
    - env: CABALVER=1.18 CABALUPGR=1.24.* GHCVER=7.6.3
      addons: {apt: {packages: [cabal-install-1.18,ghc-7.6.3], sources: [hvr-ghc]}}
    - env: CABALVER=1.22 CABALUPGR=1.24.* GHCVER=7.8.4
      addons: {apt: {packages: [cabal-install-1.22,ghc-7.8.4], sources: [hvr-ghc]}}
    - env: CABALVER=1.22 CABALUPGR=1.24.* GHCVER=7.10.3
      addons: {apt: {packages: [cabal-install-1.22,ghc-7.10.3], sources: [hvr-ghc]}}
    - env: CABALVER=1.24 GHCVER=8.0.2
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.2], sources: [hvr-ghc]}}
    - env: CABALVER=1.24 GHCVER=8.2.2
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.2.2], sources: [hvr-ghc]}}
    - env: CABALVER=1.24 GHCVER=8.4.4
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.4.4], sources: [hvr-ghc]}}
    - env: CABALVER=2.4 GHCVER=8.6.5
      addons: {apt: {packages: [cabal-install-2.4,ghc-8.6.5], sources: [hvr-ghc]}}
    - env: CABALVER=head GHCVER=head
      addons: {apt: {packages: [cabal-install-head,ghc-head],  sources: [hvr-ghc]}}

  allow_failures:
    - env: CABALVER=head GHCVER=head

before_install:
 - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH

install:
 - cabal --version
 - travis_retry cabal update
# workaround for https://ghc.haskell.org/trac/ghc/ticket/9221
 - sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config
 - cabal sandbox init
# can't use "cabal install --only-dependencies --enable-tests --enable-benchmarks" due to dep-cycle.
# must split in two separate 'cabal install's since cabal doesn't update the cabal library before it's needed in 'cabal-version' constraints.
 - cabal install "bytestring >= 0.10.4" -j
 - if [ -n "$CABALUPGR" ]; then
     cabal install "Cabal == $CABALUPGR" -j;
   fi
 - cabal install "generic-deriving >= 0.10" criterion deepseq mtl "QuickCheck >= 2.8" HUnit "test-framework-quickcheck2 >= 0.3" "random >= 1.0.1.0" attoparsec cereal tar zlib -j

script:
 - cabal configure --enable-tests --enable-benchmarks -v2 --ghc-options=-fno-spec-constr
 - cabal build
 - cabal test
# "cabal check" disabled due to -O2 warning
# - cabal check
 - cabal sdist
# check that the generated source-distribution can be built & installed
 - export SRC_TGZ=$(cabal info . | awk '{print $2 ".tar.gz";exit}') ;
   cd dist/;
   cabal sandbox init;
   if [ -f "$SRC_TGZ" ]; then
      cabal install --force-reinstalls "$SRC_TGZ";
   else
      echo "expected '$SRC_TGZ' not found";
      exit 1;
   fi

notifications:
  email:
    - kolmodin@gmail.com
