libs/generatezip.js

var returner;

if (typeof(window) !== "undefined") {
    returner = "blob"
} else {
    returner = "nodebuffer"
}


var JSZip = require("jszip");
var async = require("async");
var _ = require("lodash");


function generatezip(endfilename, obj, callback) {

    var filenames = _.keys(obj);
    var zip = new JSZip();
    async.mapSeries(filenames, function(ofilename, next) {
        var file = obj[ofilename];
        if (ofilename.indexOf("namespace.manifest") === 0) {
            zip.file(ofilename, JSON.stringify(file.data, true, 2))
        } else {
            if (typeof(file) === "object" && ofilename.indexOf(".json") === -1) {
                zip.file(ofilename + ".json", JSON.stringify(file, true, 2))
            } else {
                zip.file(ofilename, file)
            }

        }
        next()
    }, function(err, result) {
        zip.generateAsync({
            type: returner,
            compression: "DEFLATE",
            compressionOptions: {
                level: 9
            }
        }).then(function(blob) {
            callback(null, {
                filename: endfilename,
                blob: blob
            })
        }, function(err) {
            callback(err)
        });
    })
}


module.exports = generatezip;