Remove archiver dependency

server/libs/archiver/lib/plugins/json.js

@@ -0,0 +1,110 @@
+/**
+ * JSON Format Plugin
+ *
+ * @module plugins/json
+ * @license [MIT]{@link https://github.com/archiverjs/node-archiver/blob/master/LICENSE}
+ * @copyright (c) 2012-2014 Chris Talkington, contributors.
+ */
+var inherits = require('util').inherits;
+var Transform = require('readable-stream').Transform;
+
+var crc32 = require('../../buffer-crc32');
+var util = require('archiver-utils');
+
+/**
+ * @constructor
+ * @param {(JsonOptions|TransformOptions)} options
+ */
+var Json = function (options) {
+  if (!(this instanceof Json)) {
+    return new Json(options);
+  }
+
+  options = this.options = util.defaults(options, {});
+
+  Transform.call(this, options);
+
+  this.supports = {
+    directory: true,
+    symlink: true
+  };
+
+  this.files = [];
+};
+
+inherits(Json, Transform);
+
+/**
+ * [_transform description]
+ *
+ * @private
+ * @param  {Buffer}   chunk
+ * @param  {String}   encoding
+ * @param  {Function} callback
+ * @return void
+ */
+Json.prototype._transform = function (chunk, encoding, callback) {
+  callback(null, chunk);
+};
+
+/**
+ * [_writeStringified description]
+ *
+ * @private
+ * @return void
+ */
+Json.prototype._writeStringified = function () {
+  var fileString = JSON.stringify(this.files);
+  this.write(fileString);
+};
+
+/**
+ * [append description]
+ *
+ * @param  {(Buffer|Stream)}   source
+ * @param  {EntryData}   data
+ * @param  {Function} callback
+ * @return void
+ */
+Json.prototype.append = function (source, data, callback) {
+  var self = this;
+
+  data.crc32 = 0;
+
+  function onend(err, sourceBuffer) {
+    if (err) {
+      callback(err);
+      return;
+    }
+
+    data.size = sourceBuffer.length || 0;
+    data.crc32 = crc32.unsigned(sourceBuffer);
+
+    self.files.push(data);
+
+    callback(null, data);
+  }
+
+  if (data.sourceType === 'buffer') {
+    onend(null, source);
+  } else if (data.sourceType === 'stream') {
+    util.collectStream(source, onend);
+  }
+};
+
+/**
+ * [finalize description]
+ *
+ * @return void
+ */
+Json.prototype.finalize = function () {
+  this._writeStringified();
+  this.end();
+};
+
+module.exports = Json;
+
+/**
+ * @typedef {Object} JsonOptions
+ * @global
+ */