Added exportBin method

src/ExportBin.js

@@ -0,0 +1,52 @@
+var getDirectories = function(rootDir, cb) {
+  fs.readdir(rootDir, function(err, files) {
+      var dirs = [];
+      if(typeof(files)=="undefined") {
+        cb(dirs);
+        return [];
+      }
+      for (var index = 0; index < files.length; ++index) {
+          var file = files[index];
+          if (file[0] !== '.') {
+              var filePath = rootDir + '/' + file;
+              fs.stat(filePath, function(err, stat) {
+                  if (stat.isDirectory()) {
+                      dirs.push(this.file);
+                  }
+                  if (files.length === (this.index + 1)) {
+                      return cb(dirs);
+                  }
+              }.bind({index: index, file: file}));
+          }
+      }
+  });
+}
+
+module.exports = function ExportBin(ref) {
+  if(ref.options.inBrowser) return false;
+  fs.access('./output/', function(err){
+    if(err) fs.mkdir('output', function() {});
+  });
+  getDirectories('./output',function(dirs){
+    var num = 1;
+    for(var d in dirs){
+      if(dirs[d].match(/^sequencer(.*)$/)==null) continue;
+      var n = parseInt(dirs[d].match(/^sequencer(.*)$/)[1]);
+      num = (n>=num)?(n+1):num;
+    }
+    fs.mkdir('output/sequencer'+num,function(){
+      var root = 'output/sequencer'+num+'/';
+      for(var image in ref.images) {
+        var steps = ref.images[image].steps;
+        for(var i in steps) {
+          var datauri = steps[i].output.src;
+          var ext = steps[i].output.format;
+          var buffer = require('data-uri-to-buffer')(datauri);
+          fs.writeFile(root+image+"_"+i+"."+ext,buffer,function(){
+
+          });
+        }
+      }
+    })
+  });
+}