58 lines
2.0 KiB
JavaScript
58 lines
2.0 KiB
JavaScript
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"use strict";
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var compressions = require("../compressions");
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var ZipFileWorker = require("./ZipFileWorker");
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/**
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* Find the compression to use.
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* @param {String} fileCompression the compression defined at the file level, if any.
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* @param {String} zipCompression the compression defined at the load() level.
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* @return {Object} the compression object to use.
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*/
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var getCompression = function (fileCompression, zipCompression) {
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var compressionName = fileCompression || zipCompression;
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var compression = compressions[compressionName];
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if (!compression) {
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throw new Error(compressionName + " is not a valid compression method !");
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}
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return compression;
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};
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/**
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* Create a worker to generate a zip file.
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* @param {JSZip} zip the JSZip instance at the right root level.
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* @param {Object} options to generate the zip file.
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* @param {String} comment the comment to use.
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*/
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exports.generateWorker = function (zip, options, comment) {
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var zipFileWorker = new ZipFileWorker(options.streamFiles, comment, options.platform, options.encodeFileName);
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var entriesCount = 0;
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try {
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zip.forEach(function (relativePath, file) {
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entriesCount++;
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var compression = getCompression(file.options.compression, options.compression);
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var compressionOptions = file.options.compressionOptions || options.compressionOptions || {};
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var dir = file.dir, date = file.date;
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file._compressWorker(compression, compressionOptions)
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.withStreamInfo("file", {
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name : relativePath,
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dir : dir,
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date : date,
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comment : file.comment || "",
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unixPermissions : file.unixPermissions,
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dosPermissions : file.dosPermissions
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})
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.pipe(zipFileWorker);
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});
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zipFileWorker.entriesCount = entriesCount;
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} catch (e) {
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zipFileWorker.error(e);
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}
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return zipFileWorker;
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};
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