Initial commit

themes/keepit/node_modules/batch-stream/lib/index.js

@@ -0,0 +1,44 @@
+var stream = require('readable-stream')
+  , util   = require('util');
+
+
+module.exports = BatchStream;
+
+
+function BatchStream (options) {
+  if (!(this instanceof BatchStream)) return new BatchStream(options);
+  
+  options || (options = {});
+
+  var transformOptions = {
+    objectMode: true
+  }
+  if(options.highWaterMark !== undefined) {
+    transformOptions.highWaterMark = options.highWaterMark
+  }
+
+  stream.Transform.call(this, transformOptions);
+  this.size  = options.size || 100;
+  this.batch = [];
+}
+util.inherits(BatchStream, stream.Transform);
+
+
+BatchStream.prototype._transform = function (chunk, encoding, callback) {
+  this.batch.push(chunk);
+  if (this.batch.length >= this.size) {
+    this.push(this.batch);
+    this.batch = [];
+  }
+  callback();
+};
+
+
+BatchStream.prototype._flush = function (callback) {
+  if (this.batch.length) {
+    this.push(this.batch);
+    this.batch = [];
+  }
+  callback();
+};
+