language: go
dist: xenial

go:
  - "1.11"
  - "1.12"

before_install:
  - echo $PATH
  - export PATH=`echo $PATH | sed -e 's/:\/usr\/local\/clang-[0-9].[0-9].[0-9]\/bin//'`
  # xenial packages are broken and do no allow to cross-compile for both 386 and arm.
  # 386 requires gcc-multilib installed and arm requires gcc-arm-linux-gnueabi,
  # but these packages are conflicting. This is a hacky way to install 386 headers.
  - sudo dpkg --add-architecture i386
  - sudo apt-get update
  - sudo apt-get install -y -q linux-libc-dev:i386 lib32gcc-5-dev lib32stdc++-5-dev
  - wget http://security.ubuntu.com/ubuntu/pool/main/g/gcc-5/libstdc++6_5.4.0-6ubuntu1~16.04.10_amd64.deb
  - mkdir ./libc
  - dpkg-deb -x ./libstdc++6_5.4.0-6ubuntu1~16.04.10_amd64.deb ./libc
  - export LD_LIBRARY_PATH=`pwd`/libc/usr/lib/x86_64-linux-gnu/
  - wget http://releases.llvm.org/6.0.1/clang+llvm-6.0.1-x86_64-linux-gnu-ubuntu-14.04.tar.xz
  - tar -xf ./clang+llvm-6.0.1-x86_64-linux-gnu-ubuntu-14.04.tar.xz
  - sudo cp clang+llvm-6.0.1-x86_64-linux-gnu-ubuntu-14.04/bin/clang-format /usr/local/bin/
  - which clang-format
  - clang-format --version

install: true

script:
  - make install_prerequisites
  - make presubmit

after_success:
  - bash <(curl -s https://codecov.io/bash)

# If the build fails because some code in not formatted, it's nice to see the diffs after formatting.
after_failure:
  - git diff --name-only
  - git diff