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https://github.com/scratchfoundation/scratch-parser.git
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750e866444
Uses a pattern to find the sprite or project json in a zipped folder or flat list of files. Added tests for * loading a sprite or project with a nested folder * loading a file without a json Fixes #42
43 lines
1.6 KiB
JavaScript
43 lines
1.6 KiB
JavaScript
var JSZip = require('jszip');
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var GZip = require('gzip-js');
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/**
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* Unpacks a zip or gzip file.
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* @param {string} input Zip file provided as a string
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* @param {boolean} isGZip Whether the input is a GZip file, otherwise treat as zip
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* @param {boolean} isSprite Whether the input should be treated as
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* a sprite (true) or whole project (false)
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* @param {array} callback Array including both the project and zip archive
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* @return {void}
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*/
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module.exports = function (input, isGZip, isSprite, callback) {
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var msg = 'Failed to unzip and extract project.json, with error: ';
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if (isGZip) {
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var unpackedProject = null;
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try {
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unpackedProject = GZip.unzip(input);
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} catch (e) {
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return callback(msg + e);
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}
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return callback(null, [(new Buffer(unpackedProject)).toString('utf-8'), null]);
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}
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return JSZip.loadAsync(input)
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.then(function (zip) {
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// look for json in the list of files, or in a subdirectory
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// assumes there is only one sprite or project json in the zipfile
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const file = isSprite ?
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zip.file(/^([^/]*\/)?sprite\.json$/)[0] :
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zip.file(/^([^/]*\/)?project\.json$/)[0];
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if (file) {
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return file.async('string')
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.then(function (project) {
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return callback(null, [project, zip]);
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});
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}
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return callback(msg + 'missing project or sprite json');
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})
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.catch(function (err) {
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return callback(msg + JSON.stringify(err));
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});
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};
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