sudo: required
dist: trusty
language: c
env:
  matrix:
    # Note: luarocks does not work with Lua 5.0.
    - LUA=5.1 LGIVER=      LUANAME=lua5.1
    - LUA=5.2 LGIVER=      LUANAME=lua5.2 BUILD_APIDOC=true
    - LUA=5.2 LGIVER=0.7.1 LUANAME=lua5.2
    # luajit: requires --lua-suffix=jit-2.0.0-beta9 in Ubuntu precise.
    # Later versions seem to provide a `luajit` symlink, so `jit` would be enough.
    # See http://packages.ubuntu.com/precise/i386/luajit/filelist.
    - LUA=5.1 LGIVER=      LUANAME=luajit-5.1 INSTALL_PKGS="luajit" LUAINCLUDE=/usr/include/luajit-2.0 LUAROCKS_ARGS=--lua-suffix=jit-2.0.2
  global:
    # Secure token to push to gh-pages.
    - secure: "LZxt9559+V3qJMdVgmKW4RYTt8ZINooex/qsnoEJUtZloj/eFNG4COT2z6a2yeH2tKWzknCsmV9nLPJiNEA2KLcyqDhjFQvJwKmsBuhGUmLyeQgfenjweorRjO8NT18X1SAEUXAMnClPu+OeTDs4BAuVn5foGZ7xpcRg2E+j2mc="

before_install:
  - if [ -z $LUAINCLUDE ]; then LUAINCLUDE=/usr/include/${LUANAME}; fi
  - cmake --version

install:
  # Travis boilerplate: the apt-get cache might be out of date.
  - 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 xmlto asciidoc libpango1.0-dev gperf luadoc libxcb-xtest0-dev libxcb-icccm4-dev libxcb-randr0-dev libxcb-keysyms1-dev libxcb-xinerama0-dev libxcb-image0-dev libev-dev libimlib2-dev libdbus-1-dev libxdg-basedir-dev libstartup-notification0-dev imagemagick libxcb1-dev libxcb-shape0-dev libxcb-util0-dev libxcursor-dev libx11-xcb-dev libxcb-cursor-dev libxcb-xkb-dev libxkbcommon-dev libxkbcommon-x11-dev

  # Install Lua (per env).
  - sudo apt-get install -y lib${LUANAME}-dev ${LUANAME} ${INSTALL_PKGS}

  # Install luarocks (for the selected Lua version).
  - travis_retry wget http://keplerproject.github.io/luarocks/releases/luarocks-2.2.2.tar.gz
  - tar xf luarocks-2.2.2.tar.gz
  - cd luarocks-2.2.2
  - ./configure --lua-version=$LUA --with-lua-include=${LUAINCLUDE} ${LUAROCKS_ARGS}
  - make build
  - sudo make install
  - cd ..

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

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

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

  # 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'

script:
  - export CMAKE_ARGS="-DLUA_LIBRARY=/usr/lib/x86_64-linux-gnu/lib${LUANAME}.so -DLUA_INCLUDE_DIR=${LUAINCLUDE} -D OVERRIDE_VERSION=$AWESOME_VERSION"
  - make && sudo env PATH=$PATH make install && awesome --version

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