Add ability to export raw patterns.

Exporting "raw" patterns means that the export task is little more than a
wrapper around a more condensed file naming method. Instead of outputting
rendered HTML, the exporter outputs the raw patterns, augmented to remove
any superfluous directory structure and prefixed ordering.

Author: jwir3

core/lib/pattern_exporter.js

@@ -42,14 +42,21 @@ var pattern_exporter = function () {
     var preserveDirStructure = patternlab.config.patternExportPreserveDirectoryStructure;
     var patternName = pattern.patternPartial;
     var patternDir = patternlab.config.patternExportDirectory;
+    var patternCode = pattern.patternPartialCode;
+    var patternFileExtension = ".html";
     if (preserveDirStructure) {
       // Extract the first part of the pattern partial as the directory in which
       // it should go.
       patternDir = path.join(patternDir, pattern.patternPartial.split('-')[0]);
       patternName = pattern.patternPartial.split('-').slice(1).join('-');
     }
 
-    fs.outputFileSync(path.join(patternDir, patternName) + '.html', pattern.patternPartialCode);
+    if (patternlab.config.patternExportRaw) {
+      patternCode = pattern.extendedTemplate;
+      patternFileExtension = "." + JSON.parse(pattern.patternData).patternExtension;
+    }
+
+    fs.outputFileSync(path.join(patternDir, patternName) + patternFileExtension, patternCode);
   }
 
   return {

patternlab-config.json

@@ -54,6 +54,7 @@
   },
   "patternExportAll": false,
   "patternExportPreserveDirectoryStructure": false,
+  "patternExportRaw": false,
   "patternExportPatternPartials": [],
   "patternExportDirectory": "./pattern_exports/",
   "cacheBust": true,