blocks|key|1425145|text|RVM的工作方式更接近于virtualenv的工作方式，因为它可以让你用沙箱保护不同的ruby版本和它们的宝石等。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1425146|entityMap|0|LINK|mutability|MUTABLE|url|http://rvm.io/^0|0|3|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="http://rvm.io/" rel="noreferrer">RVM</a> works closer to how virtualenv works since it lets you sandbox different ruby versions and their gems, etc.

blocks|key|1640195|text|似乎没有人提到过rbenv。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1640196|entityMap|0|LINK|mutability|MUTABLE|url|http://rbenv.org/^0|8|5|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

No one seems to have mentioned <a href="http://rbenv.org/">rbenv</a>.

blocks|key|1425275|text|我将会提到我使用Bundler的方式(我使用Bundler和RVM+-+RVM来管理红宝石和一组默认的全局gem，Bundler用来处理项目特定的gem)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1425276|bundler+install+--binstubs+--path+vendor|code-block|syntax|javascript|1425277|在项目的根目录中运行此命令将安装Gemfile中列出的gem，将库放在./vendor中，并且./bin和所有require中的任何可执行文件(如果使用bundle+console或捆绑器需要)都将引用这些exe和库。|offset|length|style|CODE|1425278|entityMap^0|0|0|Z|8|1B|5|1J|7|24|E|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]|$I|T|J|U|K|L]|$I|V|J|W|K|L]|$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|N|$]]

I'll mention the way I do this with Bundler (which I use with RVM - RVM to manage the rubies and a default set of global gems, Bundler to handle project specific gems)
<pre><code>bundler install --binstubs --path vendor
</code></pre>
Running this command in the root of a project will install the gems listed from your Gemfile, put the libs in <code>./vendor</code>, and any executables in <code>./bin</code> and all <code>require</code>s (if you use <code>bundle console</code> or the Bundler requires) will reference these exes and libs.

blocks|key|1425094|text|我想你会喜欢sandbox的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1425095|entityMap|0|LINK|mutability|MUTABLE|url|http://github.com/nkryptic/sandbox/tree/master^0|6|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I think you'll like <a href="http://github.com/nkryptic/sandbox/tree/master" rel="noreferrer">sandbox</a>.

blocks|key|1425314|text|如果只需要以非根用户身份安装gem，请尝试设置GEM_HOME环境变量。然后运行gem。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1425315|例如：|1425316|$+export+GEM_HOME=$HOME/local/gems
$+gem+install+rhc|code-block|syntax|javascript|1425317|entityMap^0|N|8|14|3|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

If you only need to install gems as non-root, try setting the <code>GEM_HOME</code> environment variable. Then just run <code>gem</code>.

For example:

<pre><code>$ export GEM_HOME=$HOME/local/gems
$ gem install rhc
</code></pre>

blocks|key|1425419|text|我推荐direnv。它是shell的环境切换器。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1425420|在每次提示之前，它会检查当前目录和父目录中是否存在".envrc“文件。如果该文件存在(且已授权)，则将其加载到bash子shell中，然后由direnv捕获所有导出的变量，然后使其在当前shell中可用。|1425421|这是带有ruby-install的how+to+use+direnv|1425422|%2Bruby-安装|1425423|将此代码添加到~/.direnvrc|style|CODE|1425424|use_ruby()+{
++local+ruby_root=$HOME/.rubies/$1
++load_prefix+"$ruby_root"
++layout_ruby
}|code-block|syntax|javascript|1425425|安装ruby-install+(brew+install+ruby-install)并安装一堆红宝石。|1425426|ruby-install+ruby+1.9.3
ruby-install+ruby+2.0.0
ruby-install+ruby+2.2.0|1425427|然后创建几个符号链接以方便使用：|1425428|ln+-s+.rubies/1.9+ruby-1.9.3-p*
ln+-s+.rubies/2.0+ruby-2.0.0
ln+-s+.rubies/2.2+ruby-2.2.0|1425429|最后，在任何项目的.envrc中|1425430|use+ruby+2.0|1425431|这将把所有的gem放在项目的.direnv/ruby目录下(使打开gem更容易)。bundler将把包装器二进制文件放入.direnv/bin+(不再有bundle+exec!)。|1425432|%2B+rbenv|1425433|还可以通过在任何.envrc文件中添加use+rbenv命令来使用rbenv。这将激活rbenv，而rbenv将把ruby包装器放在PATH中。|1425434|请注意，不一定要在.bashrc或.zshrc中安装rbenv才能工作。|1425435|%2B+RVM|1425436|下面是我在ruby项目中使用的最复杂的.envrc：|1425437|rvm+use+1.8.7
layout+ruby
PATH_add+.direnv/bundler-bin|1425438|rvm用于为您选择正确的ruby版本|1425439|布局命令会自动设置一些常用的环境变量。现在只有ruby布局存在。它所做的是将GEM_HOME环境变量和它的bin目录设置为您的路径。因为它依赖于ruby版本，所以一定要在"rvm“之后调用它。因为每个ruby布局目录都有自己的GEM_HOME，所以不需要使用rvm的gemsets。|1425440|PATH_add预置并扩展给定的相对路径。在这种情况下，我使用bundle+install+--binstubs+.direnv/bundler-bin将bundler+binstub与我自己的bin脚本分开|1425441|如果您想知道这些命令到底做了什么，现在:+cat+direnv+stdlib+%7C+less|1425442|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/direnv/direnv|1|https://github.com/direnv/direnv/wiki/Ruby^0|3|6|0|0|0|H|H|1|0|0|7|B|0|0|G|P|0|0|0|0|9|6|0|0|C|0|E|C|1O|B|24|B|0|0|8|6|J|9|0|0|0|0|0|0|0|V|19|0|P|D|0^^$0|@$1|2|3|4|5|6|7|20|8|@]|9|@$A|21|B|22|1|23]]|C|$]]|$1|D|3|E|5|6|7|24|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|25|8|@]|9|@$A|26|B|27|1|28]]|C|$]]|$1|H|3|I|5|6|7|29|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|2A|8|@$A|2B|B|2C|L|M]]|9|@]|C|$]]|$1|N|3|O|5|P|7|2D|8|@]|9|@]|C|$Q|R]]|$1|S|3|T|5|6|7|2E|8|@$A|2F|B|2G|L|M]]|9|@]|C|$]]|$1|U|3|V|5|P|7|2H|8|@]|9|@]|C|$Q|R]]|$1|W|3|X|5|6|7|2I|8|@]|9|@]|C|$]]|$1|Y|3|Z|5|P|7|2J|8|@]|9|@]|C|$Q|R]]|$1|10|3|11|5|6|7|2K|8|@$A|2L|B|2M|L|M]]|9|@]|C|$]]|$1|12|3|13|5|6|7|2N|8|@$A|2O|B|2P|L|M]]|9|@]|C|$]]|$1|14|3|15|5|6|7|2Q|8|@$A|2R|B|2S|L|M]|$A|2T|B|2U|L|M]|$A|2V|B|2W|L|M]]|9|@]|C|$]]|$1|16|3|17|5|6|7|2X|8|@]|9|@]|C|$]]|$1|18|3|19|5|6|7|2Y|8|@$A|2Z|B|30|L|M]|$A|31|B|32|L|M]]|9|@]|C|$]]|$1|1A|3|1B|5|6|7|33|8|@]|9|@]|C|$]]|$1|1C|3|1D|5|6|7|34|8|@]|9|@]|C|$]]|$1|1E|3|1F|5|6|7|35|8|@]|9|@]|C|$]]|$1|1G|3|1H|5|P|7|36|8|@]|9|@]|C|$Q|R]]|$1|1I|3|1J|5|6|7|37|8|@]|9|@]|C|$]]|$1|1K|3|1L|5|6|7|38|8|@]|9|@]|C|$]]|$1|1M|3|1N|5|6|7|39|8|@$A|3A|B|3B|L|M]]|9|@]|C|$]]|$1|1O|3|1P|5|6|7|3C|8|@$A|3D|B|3E|L|M]]|9|@]|C|$]]|$1|1Q|3|-4|5|6|7|3F|8|@]|9|@]|C|$]]]|1R|$1S|$5|1T|1U|1V|C|$1W|1X]]|1Y|$5|1T|1U|1V|C|$1W|1Z]]]]

I recommend <a href="https://github.com/direnv/direnv" rel="nofollow">direnv</a>. It is an environment switcher for the shell.

Before each prompt it checks for the existence of an ".envrc" file in the current and parent directories. If the file exists (and authorized), it is loaded into a bash sub-shell and all exported variables are then captured by direnv and then made available the current shell.

Here is <a href="https://github.com/direnv/direnv/wiki/Ruby" rel="nofollow">how to use direnv</a> with ruby-install

<h2>+ ruby-install</h2>

Add this to the <code>~/.direnvrc</code>

<pre><code>use_ruby() {
 local ruby_root=$HOME/.rubies/$1
 load_prefix "$ruby_root"
 layout_ruby
}
</code></pre>

Install ruby-install (<code>brew install ruby-install</code>) and install a bunch of rubies.

<pre><code>ruby-install ruby 1.9.3
ruby-install ruby 2.0.0
ruby-install ruby 2.2.0
</code></pre>

And then make a couple of symlinks for convenience:

<pre><code>ln -s .rubies/1.9 ruby-1.9.3-p*
ln -s .rubies/2.0 ruby-2.0.0
ln -s .rubies/2.2 ruby-2.2.0
</code></pre>

And finally in any project's <code>.envrc</code>:

<code>use ruby 2.0</code>

This will put all gems under the project's <code>.direnv/ruby</code> directory (makes opening gems easier). bundler will put wrapper binaries in <code>.direnv/bin</code> (no more <code>bundle exec</code>!). 

<h2>+ rbenv</h2>

It's also possible to use rbenv by adding the <code>use rbenv</code> command in any <code>.envrc</code> file. This will activate rbenv which in turn will put the ruby wrappers in the PATH.

Note that it's not necessary to install rbenv in the .bashrc or .zshrc for this to work.

<h2>+ RVM</h2>

Here is the most complicated .envrc that I use on ruby projects:

<pre><code>rvm use 1.8.7
layout ruby
PATH_add .direnv/bundler-bin
</code></pre>

rvm is used to select the right ruby version for you

layout commands automatically set some of the usual environment variables. For now only the ruby layout exists. What it does is set the GEM_HOME environment variable and it's bin directory to your path. Because it depends on the ruby version, make sure to call it after "rvm". Since each ruby layout directories have their own GEM_HOME, you don't need to use rvm's gemsets.

PATH_add prepends and expands the given relative path. In that case, I use this to segregate the bundler binstubs from my own bin scripts with <code>bundle install --binstubs .direnv/bundler-bin</code>

If you want to find out what those commands exactly do, for now: cat <code>direnv stdlib</code> | less

blocks|key|1640439|text|Mineshaft是一个我已经从事了一段时间的项目，并且正在继续开发工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1640440|它提供了创建虚拟环境的能力，类似于virtualenv的工作方式，还可以全局安装Ruby。|1640441|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/camerontesterman/mineshaft^0|0|9|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

<a href="https://github.com/camerontesterman/mineshaft" rel="nofollow noreferrer">Mineshaft</a> is a project that I've been working on for some time and am continuing development work on.

It offers the ability to both create virtual environments akin to how virtualenv works and can also install Ruby globally as well.

Is there something similar to the Python utility <a href="http://pypi.python.org/pypi/virtualenv" rel="noreferrer">virtualenv</a>?

Basically it allows you to install Python packages into a sandboxed environment, so <code>easy_install django</code> doesn't go in your system-wide site-packages directory, it would go in the virtualenv-created directory.

For example:

<pre><code>$ virtualenv test
New python executable in test/bin/python
Installing setuptools...cd .........done.
$ cd test/
$ source bin/activate
(test)$ easy_install tvnamer
Searching for tvnamer
Best match: tvnamer 0.5.1
Processing tvnamer-0.5.1-py2.5.egg
Adding tvnamer 0.5.1 to easy-install.pth file
Installing tvnamer script to /Users/dbr/test/bin

Using /Library/Python/2.5/site-packages/tvnamer-0.5.1-py2.5.egg
Processing dependencies for tvnamer
Finished processing dependencies for tvnamer
(test)$ which tvnamer 
/Users/dbr/test/bin/tvnamer
</code></pre>

Is there something like this for RubyGems?

Ruby equivalent of virtualenv?

Python

是否有类似于Python实用程序的功能基本上，它允许您将Python包安装到沙箱环境中，因此easy_install django不会放在系统范围的站点包目录中，而是放在virtualenv创建的目录中。例如：$ virtualenv testNew python executable in test/bin/pythonInstalling setuptools...cd .........do

问Ruby相当于virtualenv？
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