language: c
compiler:
  - gcc
  - clang
addons:
  apt:
    sources:
    - llvm-toolchain-precise-3.5
    # ubuntu-toolchain-r-test contains libstdc++6 >= 4.8 which libllvm3.5 needs.
    - ubuntu-toolchain-r-test
    packages:
    - clang-format-3.5
    - libllvm3.5
before_install:
  # The travis VMs run on Ubuntu 12.04 which is very old and a huge pain to get
  # into a state where we can build a recent version of i3 :(.
  - "echo 'deb http://archive.ubuntu.com/ubuntu/ trusty main universe' | sudo tee /etc/apt/sources.list.d/trusty.list"
  - "echo 'APT::Default-Release \"precise\";' | sudo tee /etc/apt/apt.conf.d/default-release"

  - "echo 'Package: libc6' > /tmp/pin"
  - "echo 'Pin: release n=trusty' >> /tmp/pin"
  - "echo 'Pin-Priority: 999' >> /tmp/pin"
  - "echo '' >> /tmp/pin"

  - "echo 'Package: libxkbcommon*' >> /tmp/pin"
  - "echo 'Pin: release n=trusty' >> /tmp/pin"
  - "echo 'Pin-Priority: 999' >> /tmp/pin"
  - "echo '' >> /tmp/pin"

  - "echo 'Package: libyajl*' >> /tmp/pin"
  - "echo 'Pin: release n=trusty' >> /tmp/pin"
  - "echo 'Pin-Priority: 999' >> /tmp/pin"
  - "echo '' >> /tmp/pin"

  - "echo 'Package: libxcb-image*' >> /tmp/pin"
  - "echo 'Pin: release n=trusty' >> /tmp/pin"
  - "echo 'Pin-Priority: 999' >> /tmp/pin"
  - "echo '' >> /tmp/pin"

  - sudo cp /tmp/pin /etc/apt/preferences.d/trustypin
  - sudo apt-get update
  - sudo apt-get install -t trusty libc6 libc6-dev
  - sudo apt-get install --no-install-recommends devscripts equivs xdotool
install:
  - sudo mk-build-deps --install --remove --tool 'apt-get --no-install-recommends' debian/control
  # Install as many dependencies as possible via apt because cpanm is not very reliable/easy to debug.
  - sudo apt-get install --no-install-recommends libanyevent-perl libanyevent-i3-perl libextutils-pkgconfig-perl xcb-proto cpanminus xvfb xserver-xephyr xauth libinline-perl libxml-simple-perl libmouse-perl libmousex-nativetraits-perl libextutils-depends-perl perl-modules libtest-deep-perl libtest-exception-perl libxml-parser-perl libtest-simple-perl libtest-fatal-perl libdata-dump-perl libtest-differences-perl libxml-tokeparser-perl libtest-use-ok-perl libipc-run-perl libxcb-xtest0-dev
  - sudo /bin/sh -c 'cpanm -n -v X11::XCB || true'
  - sudo /bin/sh -c 'cpanm -n -v AnyEvent::I3 || true'
script:
  - CFLAGS="-Wformat -Wformat-security -Wextra -Wno-unused-parameter -Werror" make -j
  - (cd testcases && xvfb-run ./complete-run.pl --parallel=1 || (cat latest/complete-run.log; false))
  - clang-format-3.5 -i $(find . -name "*.[ch]" | tr '\n' ' ') && git diff --exit-code || (echo 'Code was not formatted using clang-format!'; false)
  - |
    funcs='malloc|calloc|realloc|strdup|strndup|asprintf|write'
    cstring='"([^"\\]|\\.)*"'
    cchar="'[^\\\\]'|'\\\\.[^']*'"
    regex="^([^'\"]|${cstring}|${cchar})*\<(${funcs})\>"
    detected=0
    while IFS= read -r file; do
        if { cpp -w -fpreprocessed "$file" || exit "$?"; } | grep -E -- "$regex"; then
            echo "^ $file calls a function that has a safe counterpart."
            detected=1
        fi
    done << EOF
    $(find -name '*.c' -not -name safewrappers.c -not -name strndup.c)
    EOF
    if [ "$detected" -ne 0 ]; then
        echo
        echo "Calls of functions that have safe counterparts were detected."
        exit 1
    fi