generate: function()

in TestApplications/JDIChromePlugin/DevPanel/libs/jszip/jszip.js [1370:1484]
82 lines of code
27 McCabe index (conditional complexity)

    generate: function(options) {
        options = extend(options || {}, {
            base64: true,
            compression: "STORE",
            compressionOptions : null,
            type: "base64",
            platform: "DOS",
            comment: null,
            mimeType: 'application/zip'
        });

        utils.checkSupport(options.type);

        // accept nodejs `process.platform`
        if(
          options.platform === 'darwin' ||
          options.platform === 'freebsd' ||
          options.platform === 'linux' ||
          options.platform === 'sunos'
        ) {
          options.platform = "UNIX";
        }
        if (options.platform === 'win32') {
          options.platform = "DOS";
        }

        var zipData = [],
            localDirLength = 0,
            centralDirLength = 0,
            writer, i,
            utfEncodedComment = utils.transformTo("string", this.utf8encode(options.comment || this.comment || ""));

        // first, generate all the zip parts.
        for (var name in this.files) {
            if (!this.files.hasOwnProperty(name)) {
                continue;
            }
            var file = this.files[name];

            var compressionName = file.options.compression || options.compression.toUpperCase();
            var compression = compressions[compressionName];
            if (!compression) {
                throw new Error(compressionName + " is not a valid compression method !");
            }
            var compressionOptions = file.options.compressionOptions || options.compressionOptions || {};

            var compressedObject = generateCompressedObjectFrom.call(this, file, compression, compressionOptions);

            var zipPart = generateZipParts.call(this, name, file, compressedObject, localDirLength, options.platform);
            localDirLength += zipPart.fileRecord.length + compressedObject.compressedSize;
            centralDirLength += zipPart.dirRecord.length;
            zipData.push(zipPart);
        }

        var dirEnd = "";

        // end of central dir signature
        dirEnd = signature.CENTRAL_DIRECTORY_END +
        // number of this disk
        "\x00\x00" +
        // number of the disk with the start of the central directory
        "\x00\x00" +
        // total number of entries in the central directory on this disk
        decToHex(zipData.length, 2) +
        // total number of entries in the central directory
        decToHex(zipData.length, 2) +
        // size of the central directory   4 bytes
        decToHex(centralDirLength, 4) +
        // offset of start of central directory with respect to the starting disk number
        decToHex(localDirLength, 4) +
        // .ZIP file comment length
        decToHex(utfEncodedComment.length, 2) +
        // .ZIP file comment
        utfEncodedComment;


        // we have all the parts (and the total length)
        // time to create a writer !
        var typeName = options.type.toLowerCase();
        if(typeName==="uint8array"||typeName==="arraybuffer"||typeName==="blob"||typeName==="nodebuffer") {
            writer = new Uint8ArrayWriter(localDirLength + centralDirLength + dirEnd.length);
        }else{
            writer = new StringWriter(localDirLength + centralDirLength + dirEnd.length);
        }

        for (i = 0; i < zipData.length; i++) {
            writer.append(zipData[i].fileRecord);
            writer.append(zipData[i].compressedObject.compressedContent);
        }
        for (i = 0; i < zipData.length; i++) {
            writer.append(zipData[i].dirRecord);
        }

        writer.append(dirEnd);

        var zip = writer.finalize();



        switch(options.type.toLowerCase()) {
            // case "zip is an Uint8Array"
            case "uint8array" :
            case "arraybuffer" :
            case "nodebuffer" :
               return utils.transformTo(options.type.toLowerCase(), zip);
            case "blob" :
               return utils.arrayBuffer2Blob(utils.transformTo("arraybuffer", zip), options.mimeType);
            // case "zip is a string"
            case "base64" :
               return (options.base64) ? base64.encode(zip) : zip;
            default : // case "string" :
               return zip;
         }

    },