.travis.yml

# This is the complex Travis configuration, which is intended for use
# on open source libraries which need compatibility across multiple GHC
# versions, must work with cabal-install, and should be
# cross-platform. For more information and other options, see:
#
# https://docs.haskellstack.org/en/stable/travis_ci/
#
# Copy these contents into the root directory of your Github project in a file
# named .travis.yml

# Use new container infrastructure to enable caching
sudo: false

# Do not choose a language; we provide our own build tools.
language: generic

# Caching so the next build will be fast too.
cache:
  directories:
  - $HOME/.ghc
  - $HOME/.cabal
  - $HOME/.stack

# The different configurations we want to test. We have BUILD=cabal which uses
# cabal-install, and BUILD=stack which uses Stack. More documentation on each
# of those below.
#
# We set the compiler values here to tell Travis to use a different
# cache file per set of arguments.
#
# If you need to have different apt packages for each combination in the
# matrix, you can use a line such as:
#     addons: {apt: {packages: [libfcgi-dev,libgmp-dev]}}
matrix:
  include:
  # We grab the appropriate GHC and cabal-install versions from hvr's PPA. See:
  # https://github.com/hvr/multi-ghc-travis


  # For the Stack builds we can pass in arbitrary Stack arguments via the ARGS
  # variable, such as using --stack-yaml to point to a different file.

  # Linux/stack

  - env: BUILD=stack GHCVER=7.10.3 STACK_YAML=stack-7.10.yaml
    compiler: ": #stack 7.10.3"
    addons: {apt: {packages: [libgmp-dev]}}

  - env: BUILD=stack GHCVER=8.0.2 STACK_YAML=stack-8.0.yaml
    compiler: ": #stack 8.0.2"
    addons: {apt: {packages: [libgmp-dev]}}

  - env: BUILD=stack GHCVER=8.4.4 STACK_YAML=stack-8.4.yaml
    compiler: ": #stack 8.4.4"
    addons: {apt: {packages: [libgmp-dev]}}

  - env: BUILD=stack GHCVER=8.6.3 STACK_YAML=stack-8.6.yaml
    compiler: ": #stack 8.6.3"
    addons: {apt: {packages: [libgmp-dev]}}


  # macOS (stack)

  - env: BUILD=stack STACK_YAML=stack-7.10.yaml
    compiler: ": #stack 7.10.3 osx"
    os: osx

  - env: BUILD=stack STACK_YAML=stack-8.0.yaml
    compiler: ": #stack 8.0.2 osx"
    os: osx


  # Linux/stack/hackage release

  # - env: BUILD=release-stack GHCVER=8.0.2 STACK_YAML=stack-8.0.yaml
  #   compiler: ": #stack 8.0.2"
  #   addons: {apt: {packages: [libgmp-dev]}}

  # Nightly builds are allowed to fail

  - env: BUILD=stack STACK_YAML=stack-nightly.yaml
    compiler: ": #stack nightly"
    addons: {apt: {packages: [libgmp-dev]}}


# macOS builds on Travis-CI have become highly problematic -- until this
# is fixed will have to rely on manual testing in the dev environment

  allow_failures:
  - env: BUILD=cabal GHCVER=head  CABALVER=head HAPPYVER=1.19.5 ALEXVER=3.1.7
  - env: BUILD=stack STACK_YAML=stack-nightly.yaml
  - env: BUILD=release-stack GHCVER=8.0.2 STACK_YAML=stack-8.0.yaml
  - os: osx


before_install:
# Using compiler above sets CC to an invalid value, so unset it
- unset CC

# We want to always allow newer versions of packages when building on GHC HEAD
- CABALARGS=""
- if [ "x$GHCVER" = "xhead" ]; then CABALARGS=--allow-newer; fi

# Download and unpack the stack executable
- export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$HOME/.local/bin:/opt/alex/$ALEXVER/bin:/opt/happy/$HAPPYVER/bin:$HOME/.cabal/bin:$PATH
- mkdir -p ~/.local/bin
- |
  if [ `uname` = "Darwin" ]
  then
    travis_retry curl --insecure -L https://www.stackage.org/stack/osx-x86_64 | tar xz --strip-components=1 --include '*/stack' -C ~/.local/bin
  else
    travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
  fi

  # Use the more reliable S3 mirror of Hackage
  mkdir -p $HOME/.cabal
  echo 'remote-repo: hackage.haskell.org:http://hackage.fpcomplete.com/' > $HOME/.cabal/config
  echo 'remote-repo-cache: $HOME/.cabal/packages' >> $HOME/.cabal/config

  if [ "$CABALVER" != "1.16" ]
  then
    echo 'jobs: $ncpus' >> $HOME/.cabal/config
  fi

install:
- echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
- if [ -f configure.ac ]; then autoreconf -i; fi
- |
  set -ex
  case "$BUILD" in
    release-stack|stack)
      stack --no-terminal --install-ghc $ARGS test --coverage --bench --only-dependencies
      ;;
    cabal)
      cabal --version
      travis_retry cabal update

      # Get the list of packages from the stack.yaml file
      PACKAGES=$(stack --install-ghc query locals | grep '^ *path' | sed 's@^ *path:@@')

      cabal install --only-dependencies --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS $PACKAGES
      ;;
  esac
  set +ex

script:
- |
  set -ex
  case "$BUILD" in
    release-stack)
      lpn=regex-$(cat lib/version.txt)
      ppn=regex-with-pcre-$(cat lib/version.txt)
      epn=regex-examples-$(cat lib/version.txt)
      ltb=releases/${lpn}.tar.gz
      ptb=releases/${ppn}.tar.gz
      etb=releases/${epn}.tar.gz
      if [ -f ${ltb} ]; then
        echo "installing ${lpn}"
        tar xzf ${ltb}
        cp ${STACK_YAML} ${lpn}
        cd ${lpn}
        stack --no-terminal $ARGS install --bench --coverage --no-run-benchmarks --haddock --no-haddock-deps
        cd ..
        echo "installing ${ppn}"
        tar xzf ${ptb}
        sed -e "s/extra-deps: \\[\\]/extra-deps: [${lpn}]/" ${STACK_YAML} > ${ppn}/${STACK_YAML}
        cd ${ppn}
        stack --no-terminal $ARGS install --bench --coverage --no-run-benchmarks --haddock --no-haddock-deps
        cd ..
        echo "testing ${epn}"
        tar xzf ${etb}
        sed -e "s/extra-deps: \\[\\]/extra-deps: [${lpn},${ppn}]/" ${STACK_YAML} > ${epn}/${STACK_YAML}
        cd ${epn}
        stack --no-terminal $ARGS test --bench --coverage --no-run-benchmarks --haddock --no-haddock-deps
        cd ..
      else
        echo "***"
        echo "*** no Hackage release to test"
        echo "***"
      fi
      ;;
    stack)
      stack --no-terminal $ARGS test --bench --coverage --no-run-benchmarks --haddock --no-haddock-deps
      ;;
    cabal)
      cabal install --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS $PACKAGES

      ORIGDIR=$(pwd)
      for dir in $PACKAGES
      do
        cd $dir
        cabal check || [ "$CABALVER" == "1.16" ]
        cabal sdist
        PKGVER=$(cabal info . | awk '{print $2;exit}')
        SRC_TGZ=$PKGVER.tar.gz
        cd dist
        tar zxfv "$SRC_TGZ"
        cd "$PKGVER"
        cabal configure --enable-tests
        cabal build
        cd $ORIGDIR
      done
      ;;
  esac
  set +ex

after_script:
  - travis_retry curl -L https://lainepress.github.io/shc/shc.tar.xz | tar xJ
  - |
    [ "$BUILD" == stack -a "$GHCVER" == 7.10.3 ] && ./shc --exclude-files=Text/RE/ZeInternals/QQ.hs --partial-coverage regex re-gen-cabals-test re-gen-modules-test re-include-test re-nginx-log-processor-test re-prep-test re-tests-test re-tutorial-test