用使用SASS的AngularJS应用程序Travis进行测试

Question

我不明白为什么我的TravisCI构建在编译SASS文件时总是失败(节点0.10)。

我一直收到同样的错误：

Running "concurrent:test" (concurrent) task
Warning: Running "compass:dist" (compass) task
Warning: You need to have Ruby and Compass installed and in your system PATH for this task to work. More info: https://github.com/gruntjs/grunt-contrib-compass Use --force to continue.

Aborted due to warnings.

但是我已经安装了sass和grunt-contrib-sass，从我的.travis.yml中可以看到

language: node_js                                                                                                                              

before_install:                                                                                                                                
  - gem install sass                                                                                                                           

node_js:                                                                                                                                       
  - '0.8'                                                                                                                                      
  - '0.10'                                                                                                                                     

before_script:                                                                                                                                 
  - 'npm install -g bower grunt-cli karma'                                                                                                     
  - 'bower install'                                                                                                                            

script: grunt    

和我的package.json (节选)

"grunt-bower-install": "~1.0.0",                                                                                                          
"grunt-concurrent": "~0.5.0",                                                                                                              
"grunt-contrib-clean": "~0.5.0",                                                                                                           
"grunt-contrib-compass": "~0.7.2",                                                                                                         
"grunt-contrib-concat": "~0.3.0",                                                                                                          
"grunt-contrib-connect": "~0.5.0",                                                                                                         
"grunt-contrib-copy": "~0.4.1",            

有人知道会发生什么吗？

链接到我的Travis构建：https://travis-ci.org/dmatteo/ng-bootstrap-pure/builds

附注：当然，我的地区grunt正在测试和构建完美的

Answer 1

看起来仅仅安装sass是不够的，而compass是必需的。此外，我需要指定需要图形用户界面，这是在before_install的前两行中完成的

所以，这是工作的.travis.yml

language: node_js

before_install:
  - "export DISPLAY=:99.0"
  - "sh -e /etc/init.d/xvfb start"
  - gem install sass
  - gem install compass

node_js:
  - '0.10'
  - '0.11'

before_script:
  - 'npm install -g bower grunt-cli karma'
  - 'bower install'

script: grunt