bower-rails 配置与capistrano3整合

说索

项目大了，载入js开源的插件越来越多，碰到了：

• 1. 没有打成rails包 (难道要把js都打开gem包)
• 2. 都放在assets/javascripts (没有gem包，难道都要放在这下面,太多了！)
• 3. 不易与作者同步维护

bower 是一个不错的前端类库管理的工具，感觉像ruby中的bundler一样！赞！

bower-rails这个gem就是方便把rails与js管理拉近距离了！

ubuntu的bower环境安装

sudo apt-get install nodejs
sudo apt-get install npm
sudo npm install -g bower

bower-rails 安装

  gem "bower-rails", "~> 0.9.2"
  bundle install
  rails g bower_rails:initialize

bower-rails 配置

vi Bowerfile

# A sample Bowerfile
# Check out https://github.com/42dev/bower-rails#ruby-dsl-configuration for more options

# asset 'bootstrap'

asset "timepicker", "1.3.2", git: "https://github.com/wvega/timepicker.git"

# 配置完Bowerfile
rake bower:install

bower:install完会发现vendor/assets下会多了这些多东西

$ tree vendor/assets
vendor/assets
├── bower.json
├── bower_components
│   └── timepicker
│       ├── AUTHORS
│       ├── CHANGELOG
│       ├── Gruntfile.js
│       ├── LICENSE-GPL
│       ├── LICENSE-MIT
│       ├── Makefile
│       ├── README.md
│       ├── jquery-timepicker.jquery.json
│       ├── jquery.timepicker.css
│       ├── jquery.timepicker.js
│       ├── package.json

... ...

capistrano3的配置

把这个加入config/deploy.rb中

set :linked_dirs,  %w{bin log tmp/pids tmp/cache tmp/sockets vendor/cache public/system public/assets vendor/assets/bower_components}
#注： vendor/assets/bower_components 这里不要忘了

desc "bower_rails install"
namespace :bower_rails do
  task :install do
    on roles(:app) do
      within current_path do
        with rails_env: fetch(:rails_env) do
          execute :rake, "bower:install"
        end
      end
    end
  end
end
before 'deploy:assets:precompile', 'bower_rails:install'

cap production deploy

reference:

• https://github.com/bower/bower
• https://github.com/rharriso/bower-rails
• https://github.com/platanus/capistrano-bower