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61 lines
1.2 KiB
61 lines
1.2 KiB
6 years ago
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'use strict';
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var File = require('vinyl');
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var fs = require('fs');
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var isTar = require('is-tar');
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var objectAssign = require('object-assign');
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var stripDirs = require('strip-dirs');
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var tar = require('tar-stream');
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var through = require('through2');
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module.exports = function (opts) {
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opts = opts || {};
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opts.strip = +opts.strip || 0;
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return through.obj(function (file, enc, cb) {
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var extract = tar.extract();
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var self = this;
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if (file.isNull()) {
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cb(null, file);
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return;
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}
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if (file.isStream()) {
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cb(new Error('Streaming is not supported'));
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return;
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}
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if (!file.extract || !isTar(file.contents)) {
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cb(null, file);
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return;
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}
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extract.on('entry', function (header, stream, done) {
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var chunk = [];
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var len = 0;
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stream.on('data', function (data) {
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chunk.push(data);
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len += data.length;
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});
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stream.on('end', function () {
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if (header.type !== 'directory') {
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self.push(new File({
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contents: Buffer.concat(chunk, len),
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path: stripDirs(header.name, opts.strip),
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stat: objectAssign(new fs.Stats(), header)
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}));
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}
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done();
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});
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});
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extract.on('error', cb);
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extract.on('finish', cb);
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extract.end(file.contents);
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});
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};
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