sudo: required
dist: trusty
language: c
env:
  matrix:
    - LUA=5.2 LUANAME=lua5.2 BUILD_APIDOC=true DO_COVERAGE=coveralls
    # luajit: installed from source.
    - LUA=5.1 LUANAME=luajit-2.0 LUALIBRARY=/usr/lib/libluajit-5.1.so LUAROCKS_ARGS=--lua-suffix=jit-2.0.4 TEST_PREV_COMMITS=1
    # Note: luarocks does not work with Lua 5.0.
    - LUA=5.1 LUANAME=lua5.1 BUILD_IN_DIR=/tmp/awesome-build
    # Lua 5.2 with older lgi and screen size not divisible by 2.
    - LUA=5.2 LUANAME=lua5.2 LGIVER=0.7.1 TESTS_SCREEN_SIZE=1921x1079
    # Lua 5.3 isn't available in Ubuntu Trusty, so some magic below installs it.
    - LUA=5.3 LUANAME=lua5.3 LUALIBRARY=/usr/lib/liblua.so DO_COVERAGE=codecov
  global:
    # Secure GH_APIDOC_TOKEN to push to awesomeWM/apidoc.
    - secure: "R/HYDclnws1I1+v9Yjt+RKa4CsFhbBT9tiwE3EfPhEj2KCYX4sFRMxuZvLf5sq0XWdrQaPhQ54fgAZGr3f054JKRXcTB0g9J6nhSHz9kIjPh446gafUhEeDQcZRwM/MeCWiwFIkiZm6smYoDFE9JTWu6quNV+lQ4kcVDOp2ibEc="
matrix:
  allow_failures:
    # This fails too often for reasons to be investigated.
    # See https://github.com/awesomeWM/awesome/issues/982#issuecomment-231522318.
    - env: LUA=5.1 LUANAME=luajit-2.0 LUALIBRARY=/usr/lib/libluajit-5.1.so LUAROCKS_ARGS=--lua-suffix=jit-2.0.4 TEST_PREV_COMMITS=1

before_install:
  - if [ -z $LUAINCLUDE ]; then LUAINCLUDE=/usr/include/${LUANAME}; fi
  - if [ -z $LUALIBRARY ]; then LUALIBRARY=/usr/lib/x86_64-linux-gnu/lib${LUANAME}.so; fi
  - cmake --version

install:
  # Travis boilerplate: the apt-get cache might be out of date.
  - travis_retry sudo apt-get update -qq

  # Do not install recommended packages with apt-get.
  - echo 'APT::Install-Recommends "false";' | sudo tee /etc/apt/apt.conf.d/no-recommends

  # Install build dependencies.
  # See also `apt-cache showsrc awesome | grep -E '^(Version|Build-Depends)'`.
  - sudo apt-get install -y libcairo2-dev gtk+3.0 xmlto asciidoc libpango1.0-dev libxcb-xtest0-dev libxcb-icccm4-dev libxcb-randr0-dev libxcb-keysyms1-dev libxcb-xinerama0-dev libdbus-1-dev libxdg-basedir-dev libstartup-notification0-dev imagemagick libxcb1-dev libxcb-shape0-dev libxcb-util0-dev libx11-xcb-dev libxcb-cursor-dev libxcb-xkb-dev libxkbcommon-dev libxkbcommon-x11-dev

  # Deps for functional tests.
  - sudo apt-get install -y dbus-x11 xterm xdotool xterm xvfb

  # Install Lua (per env).
  # Note that Lua 5.3 is installed manually, because it is not available in Ubuntu Trusty.
  - |
    set -ev
    if [[ "$LUA" == "5.3" ]]; then
      wget http://www.lua.org/ftp/lua-5.3.2.tar.gz -O lua.tar.gz
      tar -xvzf lua.tar.gz
      (cd lua-5.3.2/src \
        && make SYSCFLAGS="-DLUA_USE_LINUX -ULUA_COMPAT_5_2 -DLUA_USE_APICHECK" SYSLIBS="-Wl,-E -ldl -lreadline" LUA_A=liblua.so MYCFLAGS="-fPIC" RANLIB=: AR="gcc -shared -ldl -o" liblua.so \
        && cd .. \
        && sudo make INSTALL_TOP=/usr/ INSTALL_INC=${LUAINCLUDE} TO_LIB=liblua.so linux install)
    elif [[ "$LUANAME" == "luajit-2.0" ]]; then
      git clone http://luajit.org/git/luajit-2.0.git
      (cd luajit-2.0 && sudo make install PREFIX=/usr)

      # "Create" /usr/bin/lua if needed (Yup, this is a bad hack)
      if [ ! -e "/usr/bin/lua" ]; then sudo ln -s /usr/bin/luajit /usr/bin/lua; fi
    else
      sudo apt-get install -y lib${LUANAME}-dev ${LUANAME} ${INSTALL_PKGS}
    fi

  # Install luarocks (for the selected Lua version).
  - |
    travis_retry wget https://keplerproject.github.io/luarocks/releases/luarocks-2.3.0.tar.gz
    tar xf luarocks-2.3.0.tar.gz
    (cd luarocks-2.3.0 \
      && ./configure --lua-version=$LUA --with-lua-include=${LUAINCLUDE} ${LUAROCKS_ARGS} \
      && make build \
      && sudo make install)

  # lgi.
  - sudo apt-get install -y gir1.2-pango-1.0 libgirepository1.0-dev
  - travis_retry sudo luarocks install lgi $LGIVER

  # Pin lua-term (https://github.com/hoelzro/lua-term/issues/16).
  - travis_retry sudo luarocks install lua-term 0.4-1

  # Install busted for "make check-unit".
  - travis_retry sudo luarocks install busted
  # Install luacheck for "make luacheck".
  - travis_retry sudo luarocks install luacheck

  # Install ldoc for building docs.
  - travis_retry sudo luarocks install ldoc
  - travis_retry sudo luarocks install lua-discount

  # Install dependencies for code coverage testing.
  - if [ "$DO_COVERAGE" = "" ]; then export DO_COVERAGE=0; fi
  - if [ "$DO_COVERAGE" != "0" ]; then sudo luarocks install luacov 0.11.0-1; fi
  - if [ "$DO_COVERAGE" = "coveralls" ]; then sudo luarocks install luacov-coveralls; fi

  # Determine custom version.
  - export AWESOME_VERSION="${TRAVIS_BRANCH}-g$(git rev-parse --short HEAD)"
  - 'if [ "$TRAVIS_PULL_REQUEST" != false ]; then AWESOME_VERSION="${AWESOME_VERSION}-PR${TRAVIS_PULL_REQUEST}"; fi'
  # function for codecov support
  - travis_retry wget -O /tmp/codecov-bash https://codecov.io/bash
  - |
    do_codecov() {
      if [ "$DO_COVERAGE" = "codecov" ]; then
        (cd build && luacov) || return 1
        travis_retry bash /tmp/codecov-bash -F "$1" || return 1
        rm build/luacov.stats.out
      fi
      return 0
    }

  # Functions for custom Travis folds.
  - |
    travis_fold_start() {
      echo -n "travis_"
      echo "fold:start:$1"
      travis_fold_current="$1"
    }
    travis_fold_end() {
      echo -n "travis_"
      echo "fold:end:$travis_fold_current"
    }
    travis_run_in_fold() {
      travis_fold_start "$1"
      shift
      "$@"
      local result="$?"
      travis_fold_end
      return $result
    }
script:
  - export CMAKE_ARGS="-DLUA_LIBRARY=${LUALIBRARY} -DLUA_INCLUDE_DIR=${LUAINCLUDE} -D OVERRIDE_VERSION=$AWESOME_VERSION -D DO_COVERAGE=${DO_COVERAGE}"
  - |
    set -ev
    if [ -n "$BUILD_IN_DIR" ]; then
      # Explicitly remove the Makefile to not build from the src dir accidentally.
      rm Makefile
      SOURCE_DIRECTORY="$PWD"
      mkdir "$BUILD_IN_DIR"
      cd "$BUILD_IN_DIR"
      travis_run_in_fold "build_in_dir" cmake $CMAKE_ARGS "$SOURCE_DIRECTORY"
    fi
  - travis_run_in_fold "make" make
  - |
    if [ "$TRAVIS_TEST_RESULT" = 0 ]; then
      travis_run_in_fold "make.install" sudo env PATH=$PATH make install
      awesome --version
    fi
  - |
    if [ "$TRAVIS_TEST_RESULT" = 0 ]; then
      do_codecov samples
    fi
  - |
    set -ev
    if [ "$TRAVIS_TEST_RESULT" = 0 ]; then
      if [ "$DO_COVERAGE" != "0" ]; then
        travis_fold_start "DO_COVERAGE"
        (make check-coverage \
         && do_codecov unittests \
         && sed -i "1 i\\require('luacov.runner')('"$PWD"/.luacov')" build/awesomerc.lua \
         && BUILD_DIRECTORY="" tests/run.sh \
         && do_codecov functionaltests)
        ret=$?
        travis_fold_end
        [ "$ret" = 0 ]
      else
        travis_run_in_fold "make.check" make check
      fi
    fi
  - |
    set -ev
    if [ "$TEST_PREV_COMMITS" = 1 ] && ! [ "$TRAVIS_PULL_REQUEST" = false ]; then
      # Check each commit separately (to make git-bisect less annoying).
      echo "Testing previous commits based on TRAVIS_COMMIT_RANGE=$TRAVIS_COMMIT_RANGE"
      rev_list="$(git rev-list --bisect-all $TRAVIS_COMMIT_RANGE)"
      echo "rev-list: $rev_list"
      commits="$(echo $rev_list | grep -v 'dist=0' | cut -d\  -f 1)"
      echo "Testing commits: $commits"
      n="$(echo commits | wc -l)"
      i=0
      failed=
      for commit in $commits; do
        i=$((i+1))
        travis_fold_start "test_commit_${commit}_.$i.$n"
        echo "Testing commit $commit"
        git checkout "$commit"
        git --no-pager show --stat
        if ! make all check; then
          failed="$failed $commit"
        fi
        travis_fold_end
      done
      if [ -n "$failed" ]; then
        echo "Checks failed for these commits:$failed"
        false
      fi
    fi

after_success:
  # Push updated API docs for relevant branches, e.g. non-PRs builds on master.
  - if [ "$BUILD_APIDOC" = "true" ]; then build-utils/travis-apidoc.sh; fi
  # Push code coverage information
  - if [ "$DO_COVERAGE" = "coveralls" ]; then BUILD_DIRECTORY="$(pwd)/$(readlink build)/" SOURCE_DIRECTORY="$(pwd)/" luacov-coveralls --verbose --merge; fi