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<!DOCTYPE html>
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<head>
<title>Bundler: The best way to manage a Ruby application's gems</title>
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<div id='body'>
<div id='header'>
<a class="image" href="/"><img width="725" alt="The best way to manage your application's dependencies" src="/images/gembundler.png" /></a>
</div>
<div id='container'>
<div id='contents'>
<div id='intro'>
Rails 3 comes with baked in support with bundler.
</div>
<h2>Using Bundler with Rails 3</h2>
<div class='contents'>
<div class='bullet'>
<div class='description'>
Install Rails as you normally would. Use sudo
if you would normally use sudo to install gems.
</div>
<div class='how'>
<pre class="highlight plaintext">$ gem install rails</pre>
<div class='notes'>
We recommend using rvm for dependable Ruby
installations, especially if you are switching
between different versions of Ruby
</div>
</div>
</div>
<div class='bullet'>
<div class='description'>
Generate a Rails app as usual
</div>
<pre class="highlight plaintext">$ rails new myapp
$ cd myapp
</pre>
</div>
<div class='bullet'>
<div class='description'>
Run the server. Bundler is transparently managing
your dependencies!
</div>
<pre class="highlight plaintext">$ rails server
</pre>
</div>
<div class='bullet'>
<div class='description'>
Add new dependencies to your Gemfile as you
need them.
</div>
<pre class="highlight ruby"><span class="n">gem</span> <span class="s1">'nokogiri'</span>
<span class="n">gem</span> <span class="s1">'geokit'</span>
</pre>
</div>
<div class='bullet'>
<div class='description'>
If you want a dependency to be loaded only in
a certain Rails environment, place it in a group
named after that Rails environment
</div>
<pre class="highlight ruby"><span class="n">group</span> <span class="ss">:test</span> <span class="k">do</span>
 <span class="n">gem</span> <span class="s1">'rspec'</span>
 <span class="n">gem</span> <span class="s1">'faker'</span>
<span class="k">end</span>
</pre>
</div>
<div class='bullet' id='shared_with_23'>
<div class='description'>
You can place a dependency in multiple groups
at once as well
</div>
<pre class="highlight ruby"><span class="n">group</span> <span class="ss">:development</span><span class="p">,</span> <span class="ss">:test</span> <span class="k">do</span>
 <span class="n">gem</span> <span class="s1">'wirble'</span>
 <span class="n">gem</span> <span class="s1">'ruby-debug'</span>
<span class="k">end</span></pre>
<a href="/v1.6/groups.html">Learn More: Groups</a>
</div>
<div class='bullet'>
<div class='description'>
After adding a dependency, if it is not yet
installed, install it
</div>
<div class='how'>
<pre class="highlight plaintext">$ bundle install</pre>
<div class='notes'>
This will update all dependencies in your
Gemfile to the latest versions that do not
conflict with other dependencies
</div>
</div>
</div>
</div>
</div>
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<h2>Would you like to</h2>
<ul>
<li><a href="/#getting-started">Get started</a></li>
<li><a href="/issues.html">Report a bug</a></li>
<li><a href="/v1.6/whats_new.html">See what's new</a></li>
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Bundler is developed entirely by a team of volunteers.
<a href="http://www.gittip.com/bundler">Support their work</a>
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<h2>Bundler Commands</h2>
<ul>
<li><a href="/v1.6/bundle_install.html">bundle install</a></li>
<li><a href="/v1.6/bundle_update.html">bundle update</a></li>
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<h2>Help With</h2>
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<li><a href="/v1.6/gemfile.html">Gemfiles</a></li>
<li><a href="/v1.6/groups.html">Groups</a></li>
<li><a href="/v1.6/git.html">Gems from git</a></li>
<li><a href="/v1.6/bundler_setup.html">Bundler.setup</a></li>
<li><a href="/v1.6/deploying.html">Deploying</a></li>
<li><a href="/v1.6/bundler_sharing.html">Sharing</a></li>
<li><a href="/v1.6/updating_gems.html">Updating Gems</a></li>
<li><a href="/compatibility.html">Compatible versions</a></li>
</ul>
<h2>Use Bundler with</h2>
<ul>
<li><a href="/v1.6/rails3.html">Rails 3</a></li>
<li><a href="/v1.6/rails23.html">Rails 2.3</a></li>
<li><a href="/v1.6/sinatra.html">Sinatra</a></li>
<li><a href="/v1.6/rubygems.html">Rubygems</a></li>
<li><a href="/v1.6/rubymotion.html">RubyMotion</a></li>
</ul>
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and <a href="/sponsors.html">sponsors</a>
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