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instiki/vendor/plugins/bundler/doc/bundler-1.0.15/rdoc/Bundler/Graph.html
Jacques Distler 9e909d5be3 Update Rails, rails_xss and Bundler 
Update Bundler to 1.0.15.
Update Rails to 2.3.12.
Update rails_xss plugin.

The latter two were the
source of a considerable
amount of grief, as rails_xss
is now MUCH stricter about what
string methods can be used.

Also made it possible to use
rake 0.9.x with Instiki. But
you probably REALLY want to use

 ruby bundle exec rake ...

instead of just saying

 rake ....
2011-06-15 00:43:38 -05:00

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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>Class: Bundler::Graph</title>
<link rel="stylesheet" href="../rdoc.css" type="text/css" media="screen" />
<script src="../js/jquery.js" type="text/javascript"
charset="utf-8"></script>
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<li><a href="../lib/bundler/graph_rb.html?TB_iframe=true&amp;height=550&amp;width=785"
class="thickbox" title="lib/bundler/graph.rb">lib/bundler/graph.rb</a></li>
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<!-- Parent Class -->
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<h3 class="section-header">Methods</h3>
<ul class="link-list">
<li><a href="#method-c-new">::new</a></li>
<li><a href="#method-i-groups">#groups</a></li>
<li><a href="#method-i-nodes">#nodes</a></li>
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<li><a href="#method-i-viz">#viz</a></li>
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<li><a href="../Bundler/SpecSet.html">Bundler::SpecSet</a></li>
<li><a href="../Bundler/UI.html">Bundler::UI</a></li>
<li><a href="../Bundler/UI/RGProxy.html">Bundler::UI::RGProxy</a></li>
<li><a href="../Bundler/UI/Shell.html">Bundler::UI::Shell</a></li>
<li><a href="../Bundler/VersionConflict.html">Bundler::VersionConflict</a></li>
<li><a href="../Thor.html">Thor</a></li>
<li><a href="../Thor/Actions.html">Thor::Actions</a></li>
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<li><a href="../Thor/Shell/Basic.html">Thor::Shell::Basic</a></li>
<li><a href="../Thor/Shell/Color.html">Thor::Shell::Color</a></li>
<li><a href="../Thor/Shell/HTML.html">Thor::Shell::HTML</a></li>
<li><a href="../Thor/Task.html">Thor::Task</a></li>
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<li><a href="../Thor/Util.html">Thor::Util</a></li>
<li><a href="../Gem.html">Gem</a></li>
<li><a href="../Gem/Dependency.html">Gem::Dependency</a></li>
<li><a href="../Gem/Platform.html">Gem::Platform</a></li>
<li><a href="../Gem/Requirement.html">Gem::Requirement</a></li>
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</ul>
<div id="no-class-search-results" style="display: none;">No matching classes.</div>
</div>
</div>
</div>
<div id="documentation">
<h1 class="class">Bundler::Graph</h1>
<div id="description">
</div>
<!-- Constants -->
<div id="constants-list" class="section">
<h3 class="section-header">Constants</h3>
<dl>
<dt><a name="USER_OPTIONS">USER_OPTIONS</a></dt>
<dd class="description"></dd>
</dl>
</div>
<!-- Attributes -->
<!-- Methods -->
<div id="public-class-method-details" class="method-section section">
<h3 class="section-header">Public Class Methods</h3>
<div id="new-method" class="method-detail ">
<a name="method-c-new"></a>
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">(env)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code"
id="new-source">
<pre>
<span class="ruby-comment cmt"># File lib/bundler/graph.rb, line 6</span>
6: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">env</span>)
7: <span class="ruby-ivar">@env</span> = <span class="ruby-identifier">env</span>
8: <span class="ruby-keyword kw">end</span></pre>
</div>
</div>
</div>
</div>
<div id="public-instance-method-details" class="method-section section">
<h3 class="section-header">Public Instance Methods</h3>
<div id="groups-method" class="method-detail ">
<a name="method-i-groups"></a>
<div class="method-heading">
<span class="method-name">groups</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code"
id="groups-source">
<pre>
<span class="ruby-comment cmt"># File lib/bundler/graph.rb, line 15</span>
15: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">groups</span>
16: <span class="ruby-identifier">populate</span>
17: <span class="ruby-ivar">@groups</span>
18: <span class="ruby-keyword kw">end</span></pre>
</div>
</div>
</div>
<div id="nodes-method" class="method-detail ">
<a name="method-i-nodes"></a>
<div class="method-heading">
<span class="method-name">nodes</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code"
id="nodes-source">
<pre>
<span class="ruby-comment cmt"># File lib/bundler/graph.rb, line 10</span>
10: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">nodes</span>
11: <span class="ruby-identifier">populate</span>
12: <span class="ruby-ivar">@nodes</span>
13: <span class="ruby-keyword kw">end</span></pre>
</div>
</div>
</div>
<div id="viz-method" class="method-detail ">
<a name="method-i-viz"></a>
<div class="method-heading">
<span class="method-name">viz</span><span
class="method-args">(output_file, show_gem_versions = false, show_dependency_requirements = false)</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code"
id="viz-source">
<pre>
<span class="ruby-comment cmt"># File lib/bundler/graph.rb, line 20</span>
20: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">viz</span>(<span class="ruby-identifier">output_file</span>, <span class="ruby-identifier">show_gem_versions</span> = <span class="ruby-keyword kw">false</span>, <span class="ruby-identifier">show_dependency_requirements</span> = <span class="ruby-keyword kw">false</span>)
21: <span class="ruby-identifier">require</span> <span class="ruby-value str">'graphviz'</span>
22: <span class="ruby-identifier">populate</span>
23:
24: <span class="ruby-identifier">graph_viz</span> = <span class="ruby-constant">GraphViz</span><span class="ruby-operator">::</span><span class="ruby-identifier">new</span>(<span class="ruby-value str">'Gemfile'</span>, {<span class="ruby-value">:concentrate</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-keyword kw">true</span>, <span class="ruby-value">:normalize</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-keyword kw">true</span>, <span class="ruby-value">:nodesep</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value">0.55</span>})
25: <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">edge</span>[<span class="ruby-value">:fontname</span>] = <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">node</span>[<span class="ruby-value">:fontname</span>] = <span class="ruby-value str">'Arial, Helvetica, SansSerif'</span>
26: <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">edge</span>[<span class="ruby-value">:fontsize</span>] = <span class="ruby-value">12</span>
27:
28: <span class="ruby-identifier">viz_nodes</span> = {}
29:
30: <span class="ruby-comment cmt"># populate all of the nodes</span>
31: <span class="ruby-identifier">nodes</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">name</span>, <span class="ruby-identifier">node</span><span class="ruby-operator">|</span>
32: <span class="ruby-identifier">label</span> = <span class="ruby-identifier">name</span>.<span class="ruby-identifier">dup</span>
33: <span class="ruby-identifier">label</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;\n#{node.version}&quot;</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">show_gem_versions</span>
34: <span class="ruby-identifier">options</span> = { <span class="ruby-value">:label</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">label</span> }
35: <span class="ruby-identifier">options</span>.<span class="ruby-identifier">merge!</span>( <span class="ruby-constant">USER_OPTIONS</span> ) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">node</span>.<span class="ruby-identifier">is_user</span>
36: <span class="ruby-identifier">viz_nodes</span>[<span class="ruby-identifier">name</span>] = <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">add_node</span>( <span class="ruby-identifier">name</span>, <span class="ruby-identifier">options</span> )
37: <span class="ruby-keyword kw">end</span>
38:
39: <span class="ruby-identifier">group_nodes</span> = {}
40: <span class="ruby-ivar">@groups</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">name</span>, <span class="ruby-identifier">dependencies</span><span class="ruby-operator">|</span>
41: <span class="ruby-identifier">group_nodes</span>[<span class="ruby-identifier">name</span>] = <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">add_node</span>(<span class="ruby-identifier">name</span>.<span class="ruby-identifier">to_s</span>, { <span class="ruby-value">:shape</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">'box3d'</span>, <span class="ruby-value">:fontsize</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value">16</span> }.<span class="ruby-identifier">merge</span>(<span class="ruby-constant">USER_OPTIONS</span>))
42: <span class="ruby-identifier">dependencies</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">dependency</span><span class="ruby-operator">|</span>
43: <span class="ruby-identifier">options</span> = { <span class="ruby-value">:weight</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value">2</span> }
44: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">show_dependency_requirements</span> <span class="ruby-operator">&amp;&amp;</span> (<span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">requirement</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">!=</span> <span class="ruby-value str">&quot;&gt;= 0&quot;</span>)
45: <span class="ruby-identifier">options</span>[<span class="ruby-value">:label</span>] = <span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">requirement</span>.<span class="ruby-identifier">to_s</span>
46: <span class="ruby-keyword kw">end</span>
47: <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">add_edge</span>( <span class="ruby-identifier">group_nodes</span>[<span class="ruby-identifier">name</span>], <span class="ruby-identifier">viz_nodes</span>[<span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">name</span>], <span class="ruby-identifier">options</span> )
48: <span class="ruby-keyword kw">end</span>
49: <span class="ruby-keyword kw">end</span>
50:
51: <span class="ruby-ivar">@groups</span>.<span class="ruby-identifier">keys</span>.<span class="ruby-identifier">select</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">group</span><span class="ruby-operator">|</span> <span class="ruby-identifier">group</span> <span class="ruby-operator">!=</span> <span class="ruby-value">:default</span> }.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">group</span><span class="ruby-operator">|</span>
52: <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">add_edge</span>( <span class="ruby-identifier">group_nodes</span>[<span class="ruby-identifier">group</span>], <span class="ruby-identifier">group_nodes</span>[<span class="ruby-value">:default</span>], { <span class="ruby-value">:weight</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value">2</span> } )
53: <span class="ruby-keyword kw">end</span>
54:
55: <span class="ruby-identifier">viz_nodes</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">name</span>, <span class="ruby-identifier">node</span><span class="ruby-operator">|</span>
56: <span class="ruby-identifier">nodes</span>[<span class="ruby-identifier">name</span>].<span class="ruby-identifier">dependencies</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">dependency</span><span class="ruby-operator">|</span>
57: <span class="ruby-identifier">options</span> = { }
58: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">nodes</span>[<span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">name</span>].<span class="ruby-identifier">is_user</span>
59: <span class="ruby-identifier">options</span>[<span class="ruby-value">:constraint</span>] = <span class="ruby-keyword kw">false</span>
60: <span class="ruby-keyword kw">end</span>
61: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">show_dependency_requirements</span> <span class="ruby-operator">&amp;&amp;</span> (<span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">requirement</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">!=</span> <span class="ruby-value str">&quot;&gt;= 0&quot;</span>)
62: <span class="ruby-identifier">options</span>[<span class="ruby-value">:label</span>] = <span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">requirement</span>.<span class="ruby-identifier">to_s</span>
63: <span class="ruby-keyword kw">end</span>
64:
65: <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">add_edge</span>( <span class="ruby-identifier">node</span>, <span class="ruby-identifier">viz_nodes</span>[<span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">name</span>], <span class="ruby-identifier">options</span> )
66: <span class="ruby-keyword kw">end</span>
67: <span class="ruby-keyword kw">end</span>
68:
69: <span class="ruby-identifier">graph_viz</span>.<span class="ruby-identifier">output</span>( <span class="ruby-value">:png</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">output_file</span> )
70: <span class="ruby-keyword kw">end</span></pre>
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</div>
<div id="private-instance-method-details" class="method-section section">
<h3 class="section-header">Private Instance Methods</h3>
<div id="populate-method" class="method-detail ">
<a name="method-i-populate"></a>
<div class="method-heading">
<span class="method-name">populate</span><span
class="method-args">()</span>
<span class="method-click-advice">click to toggle source</span>
</div>
<div class="method-description">
<div class="method-source-code"
id="populate-source">
<pre>
<span class="ruby-comment cmt"># File lib/bundler/graph.rb, line 74</span>
74: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">populate</span>
75: <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@populated</span>
76:
77: <span class="ruby-comment cmt"># hash of name =&gt; GraphNode</span>
78: <span class="ruby-ivar">@nodes</span> = {}
79: <span class="ruby-ivar">@groups</span> = {}
80:
81: <span class="ruby-comment cmt"># Populate @nodes</span>
82: <span class="ruby-ivar">@env</span>.<span class="ruby-identifier">specs</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">spec</span><span class="ruby-operator">|</span> <span class="ruby-ivar">@nodes</span>[<span class="ruby-identifier">spec</span>.<span class="ruby-identifier">name</span>] = <span class="ruby-constant">GraphNode</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">spec</span>.<span class="ruby-identifier">name</span>, <span class="ruby-identifier">spec</span>.<span class="ruby-identifier">version</span>) }
83:
84: <span class="ruby-comment cmt"># For gems in Gemfile, add details</span>
85: <span class="ruby-ivar">@env</span>.<span class="ruby-identifier">current_dependencies</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">dependency</span><span class="ruby-operator">|</span>
86: <span class="ruby-keyword kw">next</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">node</span> = <span class="ruby-ivar">@nodes</span>[<span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">name</span>]
87: <span class="ruby-identifier">node</span>.<span class="ruby-identifier">is_user</span> = <span class="ruby-keyword kw">true</span>
88:
89: <span class="ruby-identifier">dependency</span>.<span class="ruby-identifier">groups</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">group</span><span class="ruby-operator">|</span>
90: <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@groups</span>.<span class="ruby-identifier">has_key?</span> <span class="ruby-identifier">group</span>
91: <span class="ruby-identifier">group</span> = <span class="ruby-ivar">@groups</span>[<span class="ruby-identifier">group</span>]
92: <span class="ruby-keyword kw">else</span>
93: <span class="ruby-identifier">group</span> = <span class="ruby-ivar">@groups</span>[<span class="ruby-identifier">group</span>] = []
94: <span class="ruby-keyword kw">end</span>
95: <span class="ruby-identifier">group</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">dependency</span>
96: <span class="ruby-keyword kw">end</span>
97: <span class="ruby-keyword kw">end</span>
98:
99: <span class="ruby-comment cmt"># walk though a final time and add edges</span>
100: <span class="ruby-ivar">@env</span>.<span class="ruby-identifier">specs</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">spec</span><span class="ruby-operator">|</span>
101:
102: <span class="ruby-identifier">from</span> = <span class="ruby-ivar">@nodes</span>[<span class="ruby-identifier">spec</span>.<span class="ruby-identifier">name</span>]
103: <span class="ruby-identifier">spec</span>.<span class="ruby-identifier">runtime_dependencies</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">dependency</span><span class="ruby-operator">|</span>
104: <span class="ruby-identifier">from</span>.<span class="ruby-identifier">dependencies</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">dependency</span>
105: <span class="ruby-keyword kw">end</span>
106:
107: <span class="ruby-keyword kw">end</span>
108:
109: <span class="ruby-ivar">@nodes</span>.<span class="ruby-identifier">freeze</span>
110: <span class="ruby-ivar">@groups</span>.<span class="ruby-identifier">freeze</span>
111: <span class="ruby-ivar">@populated</span> = <span class="ruby-keyword kw">true</span>
112: <span class="ruby-keyword kw">end</span></pre>
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