# we want to use our custom environment, but the Travis YAML validator
# requires this field to be specified, so we'll just use 'c'
language: c

# use the new container-based infrastructure
sudo: false

matrix:
  include:
   # we have to use CABALVER=1.16 for GHC<7.6 as well, as there's
   # no package for earlier cabal versions in the PPA
   - env: GHCVER=7.4.2 CABALVER=1.16
     addons: {apt: {packages: [cabal-install-1.16,ghc-7.4.2], sources: [hvr-ghc]}}
   - env: GHCVER=7.6.3 CABALVER=1.16
     addons: {apt: {packages: [cabal-install-1.16,ghc-7.6.3], sources: [hvr-ghc]}}
   - env: GHCVER=7.8.4 CABALVER=1.18
     addons: {apt: {packages: [cabal-install-1.18,ghc-7.8.4], sources: [hvr-ghc]}}
   - env: GHCVER=7.10.1 CABALVER=1.22
     addons: {apt: {packages: [cabal-install-1.22,ghc-7.10.1], sources: [hvr-ghc]}}
   - env: GHCVER=head CABALVER=head
     addons: {apt: {packages: [cabal-install-head,ghc-head], sources: [hvr-ghc]}}
  allow_failures:
   - env: GHCVER=head CABALVER=head

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

install:
 - travis_retry cabal update
 - cabal install --enable-tests --only-dependencies
 - ghc --version

before_script:
   # check if 'streaming' is supported (didn't exist until 1.20)
 - |
     if cabal 2>&1 test --show-details=streaming __dummy |
        grep >/dev/null 2>&1 "cabal: --show-details flag expects"
     then streaming=always
     else streaming=streaming
     fi
     export streaming
   # check if '--run-tests' is supported (didn't exist until 1.20);
   # tests must be run prior to install as packages may be broken by install
 - |
     if cabal 2>&1 install --run-tests __dummy |
        grep >/dev/null 2>&1 "cabal: unrecognized option"
     then def_cabal_install_run_tests='cabal_install_run_tests() {
          tgz=$1 &&
          shift &&
          tmp=cabal-install-run-tests.tmp &&
          mkdir -p "$tmp" &&
          ( cd "$tmp" && tar xzf - ) <"$tgz" &&
          ( cd "$tmp"/* &&
            cabal configure --enable-tests &&
            cabal build &&
            cabal test ) &&
          cabal install "$@" "$tgz"
     }'
     else def_cabal_install_run_tests='cabal_install_run_tests() {
          cabal install --run-tests "$@"
     }'
     fi
     export def_cabal_install_run_tests

script:
 - autoreconf -i
 - cabal configure -v2 --enable-tests --ghc-options=-threaded
 - cabal build
 - cabal check
 - cabal sdist
 - cabal test --show-details=$streaming
     --test-option=CreateDirectoryIfMissing001.num-repeats=100000
     --test-option=+RTS --test-option=-N2
 - eval "$def_cabal_install_run_tests" &&
   cabal_install_run_tests dist/*-*.tar.gz --force-reinstalls