本文文风可能引起不适

由于各种原因，把@whtsky 同学的Gather用 Ruby 给重写了一份，在没有写完的情况下，我还是将它部署在了服务器上。

看到 @hooopo 大牛和众大牛在不断地黑 rvm 顺便推 ruby-install + chruby 搞得我小鹿乱撞于是就禁不住诱惑试了一把。

###安装 ruby-install 和 chruby 按照官方文档的说法，在

wget -O chruby-0.3.8.tar.gz https://github.com/postmodern/chruby/archive/v0.3.8.tar.gz
tar -xzvf chruby-0.3.8.tar.gz
cd chruby-0.3.8/
sudo sh ./script/setup.sh

之后就可以美滋滋地享用啦，不过这个脚本自动安装的 rubie 版本有点低，没事，咱自己ruby-install ruby 2.1.2装一个。

安装完成了之后，在终端轻轻键入chruby ruby-2.1.2就可以开始美滋滋地地享用啦！

###安装 passenger 和 nginx 根据多年装逼的经验，在终端轻轻敲入以下代码：

gem install passenger passenger-install-nginx-module

于是在漫长的等待后 nginx 就编译好了，在简单配置好 nginx 的配置文件后，美滋滋地打开浏览器窗口……

Ooops……500 啦~于是赶快屁颠屁颠地滚去终端看错误日志

[ 2014-07-29 15:18:14.8779 5779/7f8edff12700 Pool2/Implementation.cpp:284 ]: Could not spawn process for application /home/ubuntu/g: An error occured while starting up the preloader.
  Error ID: f52f97ba
  Error details saved to: /tmp/passenger-error-Hjwpav.html
  Message from application: <p>It looks like Bundler could not find a gem. Maybe you didn't install all the gems that this application needs. To install your gems, please run:</p>

  <pre class="commands">bundle install</pre>

<p>If that didn't work, then the problem is probably caused by your application being run under a different environment than it's supposed to. Please check the following:</p>

<ol>
  <li>Is this app supposed to be run as the <code>ubuntu</code> user?</li>
  <li>Is this app being run on the correct Ruby interpreter? Below you will
      see which Ruby interpreter Phusion Passenger attempted to use.</li>
</ol>

<p>-------- The exception is as follows: -------</p>
Could not find coffee-script-source-1.7.1 in any of the sources (Bundler::GemNotFound)
<pre>  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/spec_set.rb:92:in `block in materialize&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/spec_set.rb:85:in `map!&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/spec_set.rb:85:in `materialize&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/definition.rb:133:in `specs&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/definition.rb:178:in `specs_for&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/definition.rb:167:in `requested_specs&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/environment.rb:18:in `requested_specs&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/runtime.rb:13:in `setup&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler.rb:120:in `setup&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.5/lib/bundler/setup.rb:17:in `&lt;top (required)&gt;&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135:in `require&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:144:in `require&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/lib/phusion_passenger/loader_shared_helpers.rb:263:in `block in run_load_path_setup_code&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/lib/phusion_passenger/loader_shared_helpers.rb:366:in `running_bundler&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/lib/phusion_passenger/loader_shared_helpers.rb:261:in `run_load_path_setup_code&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/helper-scripts/rack-preloader.rb:100:in `preload_app&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/helper-scripts/rack-preloader.rb:158:in `&lt;module:App&gt;&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/helper-scripts/rack-preloader.rb:29:in `&lt;module:PhusionPassenger&gt;&#39;
  /opt/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/passenger-4.0.48/helper-scripts/rack-preloader.rb:28:in `&lt;main&gt;&#39;</pre>


[ 2014-07-29 15:18:14.8854 5779/7f8eddda5700 agents/HelperAgent/RequestHandler.h:2305 ]: [Client 21] Cannot checkout session because a spawning error occurred. The identifier of the error is . Please see earlier logs for details about the error.
App 10708 stdout: 
App 10708 stderr: /usr/bin/env: 
App 10708 stderr: ruby
App 10708 stderr: : No such file or directory
App 10708 stderr: 
App 10708 stdout: 

咦，我明明装好了coffee-script-source这个 gem 啊，一转眼看下面，ruby 环境没有配置好，于是在一番 Google 之后在 https://ruby-china.org/topics/20385 ，找到了答案：

只需要在 ~/.bash_profile 里加一句： chruby ruby-2.1.2 好，刷新页面，页面是出来了，可出来的却是 sprockets 的错误信息，按照提示貌似是 yui 的问题，好，在 Google 大法后，装好 jre，部署完成。

###总结以及所谓的坑 体验了一番之后，发现这一套方案，不仅小，而且方便，的确让 rvm 庞大的体积以及各种环境问题无地自容，但是，在使用 passenger 部署时，一定不要忘记在 ~/.bash_profile 里加一句chruby ruby-2.1.2

最后打个小广告：

这个论坛在：https://g.nnya.nl/ 跑着，代码在 https://github.com/NyankoRevo/Gather 。（作为一个高三狗我会抽时间写完的

(Gather)[https://g.nnya.nl/ ] 是一个小圈子，虽然我们不排外：）