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<!DOCTYPE html> <html> <head> <title>system.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="../../docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <div id="jump_to"> Jump To &hellip; <div id="jump_wrapper"> <div id="jump_page"> <a class="source" href="../..//nconf/common.html"> nconf/common.html </a> <a class="source" href="../..//nconf/formats.html"> nconf/formats.html </a> <a class="source" href="../..//nconf/provider.html"> nconf/provider.html </a> <a class="source" href="../..//nconf/stores/file.html"> nconf/stores/file.html </a> <a class="source" href="../..//nconf/stores/memory.html"> nconf/stores/memory.html </a> <a class="source" href="../..//nconf/stores/system.html"> nconf/stores/system.html </a> <a class="source" href="../..//nconf/stores.html"> nconf/stores.html </a> <a class="source" href="../..//nconf.html"> nconf.html </a> </div> </div> </div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> system.js </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">&#182;</a> </div> </td> <td class="code"> <div class="highlight"><pre><span class="cm">/*</span>
<span class="cm"> * system.js: Simple memory-based store for process environment variables and</span>
<span class="cm"> * command-line arguments.</span>
<span class="cm"> *</span>
<span class="cm"> * (C) 2011, Charlie Robbins</span>
<span class="cm"> *</span>
<span class="cm"> */</span>
<span class="kd">var</span> <span class="nx">util</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;util&#39;</span><span class="p">),</span>
<span class="nx">Memory</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./memory&#39;</span><span class="p">).</span><span class="nx">Memory</span><span class="p">;</span>
</pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">&#182;</a> </div> <h3>function System (options)</h3>
<h4>@options {Object} Options for this instance.</h4>
<p>Constructor function for the System nconf store, a simple abstraction
around the Memory store that can read process environment variables
and command-line arguments.</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">System</span> <span class="o">=</span> <span class="nx">exports</span><span class="p">.</span><span class="nx">System</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">options</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">options</span> <span class="o">=</span> <span class="nx">options</span> <span class="o">||</span> <span class="p">{};</span>
<span class="nx">Memory</span><span class="p">.</span><span class="nx">call</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="nx">options</span><span class="p">);</span>
<span class="k">this</span><span class="p">.</span><span class="nx">type</span> <span class="o">=</span> <span class="s1">&#39;system&#39;</span><span class="p">;</span>
<span class="k">this</span><span class="p">.</span><span class="nx">overrides</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">overrides</span> <span class="o">||</span> <span class="kc">null</span><span class="p">;</span>
<span class="k">this</span><span class="p">.</span><span class="nx">env</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">env</span> <span class="o">||</span> <span class="kc">false</span><span class="p">;</span>
<span class="k">this</span><span class="p">.</span><span class="nx">argv</span> <span class="o">=</span> <span class="nx">options</span><span class="p">.</span><span class="nx">argv</span> <span class="o">||</span> <span class="kc">false</span><span class="p">;</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">&#182;</a> </div> <p>Inherit from the Memory store</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">util</span><span class="p">.</span><span class="nx">inherits</span><span class="p">(</span><span class="nx">System</span><span class="p">,</span> <span class="nx">Memory</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-4">&#182;</a> </div> <h3>function loadSync ()</h3>
<p>Loads the data passed in from <code>process.env</code> into this instance.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">System</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">loadSync</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">env</span><span class="p">)</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">loadEnv</span><span class="p">();</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">argv</span><span class="p">)</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">loadArgv</span><span class="p">();</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">overrides</span><span class="p">)</span> <span class="p">{</span>
<span class="k">this</span><span class="p">.</span><span class="nx">loadOverrides</span><span class="p">();</span>
<span class="p">}</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">store</span><span class="p">;</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">&#182;</a> </div> <h3>function loadOverrides ()</h3>
<p>Loads any overrides set on this instance into
the underlying managed <code>Memory</code> store.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">System</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">loadOverrides</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">overrides</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">self</span> <span class="o">=</span> <span class="k">this</span><span class="p">,</span>
<span class="nx">keys</span> <span class="o">=</span> <span class="nb">Object</span><span class="p">.</span><span class="nx">keys</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">overrides</span><span class="p">);</span>
<span class="nx">keys</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">key</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">self</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">key</span><span class="p">,</span> <span class="nx">self</span><span class="p">.</span><span class="nx">overrides</span><span class="p">[</span><span class="nx">key</span><span class="p">]);</span>
<span class="p">});</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">store</span><span class="p">;</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-6">&#182;</a> </div> <h3>function loadArgv ()</h3>
<p>Loads the data passed in from the command-line arguments
into this instance.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">System</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">loadArgv</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">self</span> <span class="o">=</span> <span class="k">this</span><span class="p">,</span>
<span class="nx">argv</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="k">this</span><span class="p">.</span><span class="nx">argv</span> <span class="o">===</span> <span class="s1">&#39;object&#39;</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">argv</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;optimist&#39;</span><span class="p">).</span><span class="nx">options</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">argv</span><span class="p">).</span><span class="nx">argv</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">argv</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">argv</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;optimist&#39;</span><span class="p">).</span><span class="nx">argv</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">argv</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nb">Object</span><span class="p">.</span><span class="nx">keys</span><span class="p">(</span><span class="nx">argv</span><span class="p">).</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">key</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">self</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">key</span><span class="p">,</span> <span class="nx">argv</span><span class="p">[</span><span class="nx">key</span><span class="p">]);</span>
<span class="p">});</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">store</span><span class="p">;</span>
<span class="p">};</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-7">&#182;</a> </div> <h3>function loadEnv ()</h3>
<p>Loads the data passed in from <code>process.env</code> into this instance.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">System</span><span class="p">.</span><span class="nx">prototype</span><span class="p">.</span><span class="nx">loadEnv</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">self</span> <span class="o">=</span> <span class="k">this</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="k">this</span><span class="p">.</span><span class="nx">env</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nb">Object</span><span class="p">.</span><span class="nx">keys</span><span class="p">(</span><span class="nx">process</span><span class="p">.</span><span class="nx">env</span><span class="p">).</span><span class="nx">filter</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">key</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="o">!</span><span class="nx">self</span><span class="p">.</span><span class="nx">env</span><span class="p">.</span><span class="nx">length</span> <span class="o">||</span> <span class="nx">self</span><span class="p">.</span><span class="nx">env</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">key</span><span class="p">)</span> <span class="o">!==</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span>
<span class="p">}).</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">key</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">self</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="nx">key</span><span class="p">,</span> <span class="nx">process</span><span class="p">.</span><span class="nx">env</span><span class="p">[</span><span class="nx">key</span><span class="p">]);</span>
<span class="p">});</span>
<span class="k">return</span> <span class="k">this</span><span class="p">.</span><span class="nx">store</span><span class="p">;</span>
<span class="p">};</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>
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