.travis.yml

sudo: false
language: haskell

before_install:
- if [ $STACK ]; then mkdir -p ~/.local/bin; export PATH=$HOME/.local/bin:$PATH;
  travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack';
  else export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH;
  fi

install:
- $STACK || if [ -f $HOME/.cabal/packages/hackage.haskell.org/00-index.tar.gz ]; then zcat $HOME/.cabal/packages/hackage.haskell.org/00-index.tar.gz
  > $HOME/.cabal/packages/hackage.haskell.org/00-index.tar; ls -l $HOME/.cabal/packages/hackage.haskell.org/;
  fi; cabal update; sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config; if [ -n "$CABALCONFIG"
  ]; then cp $CABALCONFIG cabal.config; fi; if [ -n "$STACKAGESNAPSHOT" ]; then curl
  --silent https://www.stackage.org/$STACKAGESNAPSHOT/cabal.config | grep -v "$(cabal
  info . -v0 | head -n 1 | awk '{ print $2 }' | sed -E 's/-[0-9]+(\.[0-9]+)+//') =="
  > cabal.config; fi; cabal install --only-dependencies $CABALCONFOPTS --dry -v >
  installplan.txt; sed -i -e '1,/^Resolving /d' installplan.txt; cat installplan.txt;
  if diff -u $HOME/.cabsnap/installplan.txt installplan.txt; then echo "cabal build-cache
  HIT"; rm -rfv .ghc; cp -av $HOME/.cabsnap/ghc $HOME/.ghc; cp -av $HOME/.cabsnap/lib
  $HOME/.cabsnap/share $HOME/.cabsnap/bin $HOME/.cabal/; else echo "cabal build-cache
  MISS"; rm -rf $HOME/.cabsnap; mkdir -p $HOME/.ghc $HOME/.cabal/lib $HOME/.cabal/share
  $HOME/.cabal/bin; cabal install --only-dependencies $CABALCONFOPTS; fi; if [ ! -d
  $HOME/.cabsnap ]; then echo "snapshotting package-db to build-cache"; mkdir $HOME/.cabsnap;
  cp -av $HOME/.ghc $HOME/.cabsnap/ghc; cp -av $HOME/.cabal/lib $HOME/.cabal/share
  $HOME/.cabal/bin installplan.txt $HOME/.cabsnap/; fi;

script:
- if [ $STACK ]; then stack -j2 --no-terminal --install-ghc test; 
  else cabal configure $CABALCONFOPTS -v2 && cabal build $CABALBUILDOPTS && cabal test;
  fi

matrix:
  fast_finish: true
  include:
  - env: GHCVER=7.10.3 CABALVER=1.22
    addons:
      apt:
        sources:
        - hvr-ghc
        packages:
        - cabal-install-1.22
        - ghc-7.10.3
        - libgmp-dev
    compiler: ! ': # ghc-7.10.3 cabal-1.22'
  - env: GHCVER=8.0.1  CABALVER=1.24
    addons:
      apt:
        sources:
        - hvr-ghc
        packages:
        - cabal-install-1.24
        - ghc-8.0.1
        - libgmp-dev
    compiler: ! ': # ghc-8.0.1 cabal-1.24'
  - env: GHCVER=head   CABALVER=1.24
    addons:
      apt:
        sources:
        - hvr-ghc
        packages:
        - cabal-install-1.24
        - ghc-head
        - libgmp-dev
    compiler: ! ': # ghc-head cabal-1.24'
  - env: STACK=YES
    addons:
      apt:
        sources:
        - hvr-ghc
        packages:
        - libgmp-dev
    compiler: ! ': # Stack LTS'
  allow_failures:
  - env: GHCVER=head CABALVER=1.24

branches:
  only:
  - master

before_cache:
- rm -fv $HOME/.cabal/packages/hackage.haskell.org/build-reports.log
- rm -fv $HOME/.cabal/packages/hackage.haskell.org/00-index.tar

cache:
  directories:
  - $HOME/.stack
  - $HOME/.cabsnap
  - $HOME/.cabal/packages