.travis.yml

language: python
python:
  - "3.5"

sudo: required
dist: trusty

cache:
  directories:
    - .cask/
    - $HOME/emacs
    - $HOME/.ccache
    - $HOME/ycmd
    - $HOME/.npm  # Node packages from npm

addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test  # for new libstdc++
      - george-edison55-precise-backports # for a more recent version of cmake (3.2.3)
    packages:
      - cmake-data
      - cmake
      # 4.9 is the first version of GCC with good enough C++11 support; in
      # particular regex support.
      - gcc-4.9
      - g++-4.9

env:
  global:
    # Travis can run out of RAM, so we need to be careful here.
    - YCM_CORES=3
  matrix:
    # Run unit tests against oldest supported stable, latest stable, and trunk
    - EMACS_VERSION=24.4
    - EMACS_VERSION=24.5
    - EMACS_VERSION=25.1
    - EMACS_VERSION=25.2
    - EMACS_VERSION=25.3
    - EMACS_VERSION=26.1
    - EMACS_VERSION=snapshot COMPILEFLAGS='error-on-warn'

before_install:
  - export PATH="$HOME/bin:$PATH"
  - wget 'https://raw.githubusercontent.com/flycheck/emacs-travis/master/emacs-travis.mk'
  - if [[ -n $EMACS_VERSION ]]; then make -f emacs-travis.mk install_emacs; fi
  - if [[ -n $EMACS_VERSION ]]; then make -f emacs-travis.mk install_cask; fi
  - if [[ -n $EMACS_VERSION ]]; then emacs --version; fi

  # ycmd
  - travis/install_ycmd.sh

install:
  - if [[ -n $EMACS_VERSION ]]; then make deps; fi

script:
  - if [[ -n $EMACS_VERSION ]]; then make all; fi
  - if [[ -n $EMACS_VERSION ]]; then make YCMDPATH="$HOME/ycmd/ycmd" REQUEST_BACKEND=url-retrieve test; fi
  - if [[ -n $EMACS_VERSION ]]; then make YCMDPATH="$HOME/ycmd/ycmd" REQUEST_BACKEND=curl test; fi

matrix:
  # Finish the build even if any build with allowed failures are still running
  fast_finish: true
  allow_failures:
    # 26.1 support is still not guaranteed
    - env: EMACS_VERSION=26.1

    # Allow the snapshot build to fail, because Emacs snapshot sometimes fails
    # to build
    - env: EMACS_VERSION=snapshot COMPILEFLAGS='error-on-warn'