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<title>class ReVIEW::YAMLLoader - review-2.2.0 Documentation</title>

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  <li ><a href="#method-c-new">::new</a>

  <li ><a href="#method-i-load_file">#load_file</a>

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<h1 id="class-ReVIEW::YAMLLoader" class="class">
  class ReVIEW::YAMLLoader
</h1>

<section class="description">

</section>

<section id="5Buntitled-5D" class="documentation-section">

   <section id="public-class-5Buntitled-5D-method-details" class="method-section">
     <header>
       <h3>Public Class Methods</h3>
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    <div id="method-c-new" class="method-detail ">

      <div class="method-heading">
        <span class="method-name">new</span><span
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        <div class="method-source-code" id="new-source">
          <pre><span class="ruby-comment"># File lib/review/yamlloader.rb, line 5</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>initialize</span> <span class=“ruby-keyword”>end</span></pre>

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     <h3>Public Instance Methods</h3>
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  <div id="method-i-load_file" class="method-detail ">

    <div class="method-heading">
      <span class="method-name">load_file</span><span
        class="method-args">(yamlfile)</span>

      <span class="method-click-advice">click to toggle source</span>

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    <div class="method-description">

      <p>load YAML files</p>

<p>`inherit: [3.yml, 6.yml]` in 7.yml; `inherit: [1.yml, 2.yml]` in 3.yml; `inherit: [4.yml, 5.yml]` in 6.yml</p>

<pre>=&gt; 7.yml &gt; 6.yml &gt; 5.yml &gt; 4.yml &gt; 3.yml &gt; 2.yml &gt; 1.yml</pre>

<div class="method-source-code" id="load_file-source">
  <pre><span class="ruby-comment"># File lib/review/yamlloader.rb, line 13</span>

<span class=“ruby-keyword”>def</span> <span class=“ruby-identifier”>load_file</span>(<span class=“ruby-identifier”>yamlfile</span>)

<span class="ruby-identifier">file_queue</span> = [<span class="ruby-constant">File</span>.<span class="ruby-identifier">expand_path</span>(<span class="ruby-identifier">yamlfile</span>)]
<span class="ruby-identifier">loaded_files</span> = {}
<span class="ruby-identifier">yaml</span> = {}

<span class="ruby-identifier">loop</span> <span class="ruby-keyword">do</span>
  <span class="ruby-comment"># Check exit condition</span>
  <span class="ruby-keyword">if</span> <span class="ruby-identifier">file_queue</span>.<span class="ruby-identifier">empty?</span>
    <span class="ruby-keyword">return</span> <span class="ruby-identifier">yaml</span>
  <span class="ruby-keyword">end</span>

  <span class="ruby-identifier">current_file</span> = <span class="ruby-identifier">file_queue</span>.<span class="ruby-identifier">shift</span>
  <span class="ruby-identifier">current_yaml</span> = <span class="ruby-constant">YAML</span>.<span class="ruby-identifier">load_file</span>(<span class="ruby-identifier">current_file</span>)
  <span class="ruby-identifier">yaml</span> = <span class="ruby-identifier">current_yaml</span>.<span class="ruby-identifier">deep_merge</span>(<span class="ruby-identifier">yaml</span>)

  <span class="ruby-keyword">if</span> <span class="ruby-identifier">yaml</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-string">&#39;inherit&#39;</span>)
    <span class="ruby-identifier">buf</span> = []
    <span class="ruby-identifier">yaml</span>[<span class="ruby-string">&#39;inherit&#39;</span>].<span class="ruby-identifier">reverse_each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">item</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">inherit_file</span> = <span class="ruby-constant">File</span>.<span class="ruby-identifier">expand_path</span>(<span class="ruby-identifier">item</span>, <span class="ruby-constant">File</span>.<span class="ruby-identifier">dirname</span>(<span class="ruby-identifier">yamlfile</span>))

      <span class="ruby-comment"># Check loop</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">loaded_files</span>[<span class="ruby-identifier">inherit_file</span>]
        <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;Found circular YAML inheritance &#39;#{inherit_file}&#39; in #{yamlfile}.&quot;</span>
      <span class="ruby-keyword">end</span>

      <span class="ruby-identifier">loaded_files</span>[<span class="ruby-identifier">inherit_file</span>] = <span class="ruby-keyword">true</span>
      <span class="ruby-identifier">buf</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">inherit_file</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">yaml</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-string">&#39;inherit&#39;</span>)
    <span class="ruby-identifier">file_queue</span> = <span class="ruby-identifier">buf</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">file_queue</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>

<span class=“ruby-keyword”>end</span></pre>

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