249 lines
11 KiB
HTML
249 lines
11 KiB
HTML
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<title>Class: Rack::Reloader</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta http-equiv="Content-Script-Type" content="text/javascript" />
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<script type="text/javascript">
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// ]]>
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</script>
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</head>
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<body>
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<div id="classHeader">
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<table class="header-table">
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<tr class="top-aligned-row">
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<td><strong>Class</strong></td>
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<td class="class-name-in-header">Rack::Reloader</td>
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</tr>
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<tr class="top-aligned-row">
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<td><strong>In:</strong></td>
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<td>
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<a href="../../files/lib/rack/reloader_rb.html">
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lib/rack/reloader.rb
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</a>
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<br />
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</td>
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</tr>
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<tr class="top-aligned-row">
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<td><strong>Parent:</strong></td>
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<td>
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Object
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</td>
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</tr>
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</table>
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</div>
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<div id="bodyContent">
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<div id="contextContent">
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<div id="description">
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<p>
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<a href="Reloader.html">Rack::Reloader</a> checks on every request, but at
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most every <tt>secs</tt> seconds, if a file loaded changed, and reloads it,
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logging to rack.errors.
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</p>
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<p>
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It is recommended you use <a href="ShowExceptions.html">ShowExceptions</a>
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to catch SyntaxErrors etc.
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</p>
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</div>
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</div>
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<div id="method-list">
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<h3 class="section-bar">Methods</h3>
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<div class="name-list">
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<a href="#M000133">call</a>
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<a href="#M000132">new</a>
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<a href="#M000134">reload!</a>
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</div>
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</div>
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</div>
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<!-- if includes -->
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<div id="section">
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<!-- if method_list -->
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<div id="methods">
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<h3 class="section-bar">Public Class methods</h3>
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<div id="method-M000132" class="method-detail">
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<a name="M000132"></a>
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<div class="method-heading">
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<a href="#M000132" class="method-signature">
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<span class="method-name">new</span><span class="method-args">(app, secs=10)</span>
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</a>
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</div>
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<div class="method-description">
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<p><a class="source-toggle" href="#"
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onclick="toggleCode('M000132-source');return false;">[Source]</a></p>
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<div class="method-source-code" id="M000132-source">
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<pre>
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<span class="ruby-comment cmt"># File lib/rack/reloader.rb, line 11</span>
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11: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">app</span>, <span class="ruby-identifier">secs</span>=<span class="ruby-value">10</span>)
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12: <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</span>
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13: <span class="ruby-ivar">@secs</span> = <span class="ruby-identifier">secs</span> <span class="ruby-comment cmt"># reload every @secs seconds max</span>
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14: <span class="ruby-ivar">@last</span> = <span class="ruby-constant">Time</span>.<span class="ruby-identifier">now</span>
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15: <span class="ruby-keyword kw">end</span>
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</pre>
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</div>
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</div>
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</div>
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<h3 class="section-bar">Public Instance methods</h3>
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<div id="method-M000133" class="method-detail">
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<a name="M000133"></a>
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<div class="method-heading">
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<a href="#M000133" class="method-signature">
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<span class="method-name">call</span><span class="method-args">(env)</span>
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</a>
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</div>
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<div class="method-description">
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<p><a class="source-toggle" href="#"
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onclick="toggleCode('M000133-source');return false;">[Source]</a></p>
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<div class="method-source-code" id="M000133-source">
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<pre>
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<span class="ruby-comment cmt"># File lib/rack/reloader.rb, line 17</span>
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17: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
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18: <span class="ruby-keyword kw">if</span> <span class="ruby-constant">Time</span>.<span class="ruby-identifier">now</span> <span class="ruby-operator">></span> <span class="ruby-ivar">@last</span> <span class="ruby-operator">+</span> <span class="ruby-ivar">@secs</span>
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19: <span class="ruby-constant">Thread</span>.<span class="ruby-identifier">exclusive</span> {
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20: <span class="ruby-identifier">reload!</span>(<span class="ruby-identifier">env</span>[<span class="ruby-value str">'rack.errors'</span>])
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21: <span class="ruby-ivar">@last</span> = <span class="ruby-constant">Time</span>.<span class="ruby-identifier">now</span>
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22: }
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23: <span class="ruby-keyword kw">end</span>
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24:
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25: <span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
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26: <span class="ruby-keyword kw">end</span>
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</pre>
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</div>
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</div>
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</div>
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<div id="method-M000134" class="method-detail">
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<a name="M000134"></a>
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<div class="method-heading">
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<a href="#M000134" class="method-signature">
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<span class="method-name">reload!</span><span class="method-args">(stderr=STDERR)</span>
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</a>
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</div>
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<div class="method-description">
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<p><a class="source-toggle" href="#"
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onclick="toggleCode('M000134-source');return false;">[Source]</a></p>
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<div class="method-source-code" id="M000134-source">
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<pre>
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<span class="ruby-comment cmt"># File lib/rack/reloader.rb, line 28</span>
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28: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">reload!</span>(<span class="ruby-identifier">stderr</span>=<span class="ruby-constant">STDERR</span>)
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29: <span class="ruby-identifier">need_reload</span> = <span class="ruby-identifier">$LOADED_FEATURES</span>.<span class="ruby-identifier">find_all</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">loaded</span><span class="ruby-operator">|</span>
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30: <span class="ruby-keyword kw">begin</span>
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31: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">loaded</span> <span class="ruby-operator">=~</span> <span class="ruby-regexp re">/\A[.\/]/</span> <span class="ruby-comment cmt"># absolute filename or 1.9</span>
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32: <span class="ruby-identifier">abs</span> = <span class="ruby-identifier">loaded</span>
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33: <span class="ruby-keyword kw">else</span>
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34: <span class="ruby-identifier">abs</span> = <span class="ruby-identifier">$LOAD_PATH</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">path</span><span class="ruby-operator">|</span> <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>(<span class="ruby-identifier">path</span>, <span class="ruby-identifier">loaded</span>) }.
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35: <span class="ruby-identifier">find</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">file</span><span class="ruby-operator">|</span> <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">exist?</span> <span class="ruby-identifier">file</span> }
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36: <span class="ruby-keyword kw">end</span>
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37:
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38: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">abs</span>
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39: <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">mtime</span>(<span class="ruby-identifier">abs</span>) <span class="ruby-operator">></span> <span class="ruby-ivar">@last</span> <span class="ruby-operator">-</span> <span class="ruby-ivar">@secs</span> <span class="ruby-keyword kw">rescue</span> <span class="ruby-keyword kw">false</span>
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40: <span class="ruby-keyword kw">else</span>
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41: <span class="ruby-keyword kw">false</span>
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42: <span class="ruby-keyword kw">end</span>
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43: <span class="ruby-keyword kw">end</span>
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44: }
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45:
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46: <span class="ruby-identifier">need_reload</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">l</span><span class="ruby-operator">|</span>
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47: <span class="ruby-identifier">$LOADED_FEATURES</span>.<span class="ruby-identifier">delete</span> <span class="ruby-identifier">l</span>
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48: }
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49:
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50: <span class="ruby-identifier">need_reload</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">to_load</span><span class="ruby-operator">|</span>
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51: <span class="ruby-keyword kw">begin</span>
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52: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">require</span> <span class="ruby-identifier">to_load</span>
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53: <span class="ruby-identifier">stderr</span>.<span class="ruby-identifier">puts</span> <span class="ruby-node">"#{self.class}: reloaded `#{to_load}'"</span>
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54: <span class="ruby-keyword kw">end</span>
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55: <span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">LoadError</span>, <span class="ruby-constant">SyntaxError</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">e</span>
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56: <span class="ruby-identifier">raise</span> <span class="ruby-identifier">e</span> <span class="ruby-comment cmt"># Possibly ShowExceptions</span>
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57: <span class="ruby-keyword kw">end</span>
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58: }
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59:
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60: <span class="ruby-identifier">stderr</span>.<span class="ruby-identifier">flush</span>
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61: <span class="ruby-identifier">need_reload</span>
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62: <span class="ruby-keyword kw">end</span>
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</pre>
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</div>
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