78 lines
1.7 KiB
JavaScript
78 lines
1.7 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var IS_WINDOWS = require( '@stdlib/assert/is-windows' );
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var ENV = require( '@stdlib/process/env' );
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// VARIABLES //
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// Match a trailing slash...
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var RE;
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if ( IS_WINDOWS ) {
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RE = /[^:]\\$/;
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} else {
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RE = /.\/$/;
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}
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// MAIN //
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/**
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* Returns the directory for storing temporary files.
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*
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* ## Notes
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*
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* - Introduced in io.js and Node v4. See the [ES5][1] and [ES6][2].
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*
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* [1]: https://github.com/nodejs/node/blob/9cd44bb2b683446531306bbcff8739fc3526d02c/lib/os.js#L31
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* [2]: https://github.com/nodejs/node/blob/5e5ec2cd1ee875ec5c837b5e0721d73628f12053/lib/os.js#L40
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*
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* @returns {string} directory for temporary files
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*
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* @example
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* var dir = tmpdir();
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* // e.g., returns '/path/to/temporary/files/directory'
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*/
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function tmpdir() {
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var tmp;
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if ( IS_WINDOWS ) {
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tmp = ENV.TEMP ||
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ENV.TMP ||
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(ENV.SystemRoot || ENV.windir || '') + '\\temp';
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} else {
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tmp = ENV.TMPDIR ||
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ENV.TMP ||
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ENV.TEMP ||
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'/tmp';
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}
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if ( RE.test( tmp ) ) {
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tmp = tmp.slice( 0, -1 );
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}
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return tmp;
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}
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// EXPORTS //
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module.exports = tmpdir;
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