M000378.html in ripxplore-0.12.0

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-  <title>make_file_system_image_list (FileCache)</title>
+  <title>random_file_system_image (FileCache)</title>
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-  <pre><span class="ruby-comment cmt"># File lib/FileCache.rb, line 92</span>
-  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">make_file_system_image_list</span>
-    <span class="ruby-identifier">urls</span>=[]
-    <span class="ruby-constant">Dir</span>.<span class="ruby-identifier">glob</span>(<span class="ruby-node">&quot;#{url_cache_dir}/*.cached.info&quot;</span>).<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">info_file</span><span class="ruby-operator">|</span>
-      <span class="ruby-identifier">url</span>=<span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-identifier">info_file</span>,<span class="ruby-value str">&quot;r&quot;</span>).<span class="ruby-identifier">read</span>.<span class="ruby-identifier">chomp</span>
-      <span class="ruby-identifier">urls</span><span class="ruby-operator">&lt;&lt;</span><span class="ruby-identifier">url</span> <span class="ruby-keyword kw">if</span> (<span class="ruby-constant">FileSystemImage</span>.<span class="ruby-identifier">is_file_system_image_filename?</span>(<span class="ruby-identifier">url</span>))
+  <pre><span class="ruby-comment cmt"># File lib/FileCache.rb, line 102</span>
+  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">random_file_system_image</span>(<span class="ruby-identifier">collection_type</span>=<span class="ruby-keyword kw">nil</span>)
+    <span class="ruby-identifier">all_image_urls</span>=<span class="ruby-identifier">file_system_image_urls_in_cache</span>    
+    <span class="ruby-identifier">all_image_urls</span>.<span class="ruby-identifier">length</span>.<span class="ruby-identifier">times</span> <span class="ruby-keyword kw">do</span>
+      <span class="ruby-keyword kw">begin</span>
+        <span class="ruby-identifier">index</span>=<span class="ruby-identifier">rand</span>(<span class="ruby-identifier">all_image_urls</span>.<span class="ruby-identifier">length</span>)
+        <span class="ruby-identifier">image</span>=<span class="ruby-identifier">get_file_system_image</span>(<span class="ruby-identifier">all_image_urls</span>[<span class="ruby-identifier">index</span><span class="ruby-operator">%</span><span class="ruby-identifier">all_image_urls</span>.<span class="ruby-identifier">length</span>])
+        <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">image</span> <span class="ruby-keyword kw">if</span> ((<span class="ruby-identifier">collection_type</span><span class="ruby-operator">==</span><span class="ruby-keyword kw">nil</span>) <span class="ruby-operator">||</span> (<span class="ruby-identifier">image</span>.<span class="ruby-identifier">send</span>(<span class="ruby-identifier">collection_type</span>).<span class="ruby-identifier">length</span><span class="ruby-operator">&gt;</span><span class="ruby-value">0</span>))
+      <span class="ruby-keyword kw">rescue</span> <span class="ruby-comment cmt">#silently swallow any exception
</span>
+      <span class="ruby-keyword kw">end</span>    
     <span class="ruby-keyword kw">end</span>
-    <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-ivar">@url_cache_list</span>,<span class="ruby-value str">&quot;w&quot;</span>) {<span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">f</span><span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">urls</span>.<span class="ruby-identifier">join</span>(<span class="ruby-value str">&quot;\n&quot;</span>)}
+    <span class="ruby-identifier">raise</span> <span class="ruby-value str">'no suitable image found in cache'</span>
   <span class="ruby-keyword kw">end</span></pre>
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