You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
2.0 KiB
111 lines
2.0 KiB
/**
|
|
* 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
|
|
*/
|