93 lines
2.2 KiB
JavaScript
93 lines
2.2 KiB
JavaScript
/**
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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 objectKeys = require( './../../../keys' );
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var ENV = require( '@stdlib/process/env' );
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// FUNCTIONS //
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/**
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* Copies `process.env`.
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*
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* ## Notes
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*
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* - This implementation accommodates `process.env` on older Node.js versions (<=v0.10.x), where `process.env` was object-like, but would show unexpected behavior when attempting to get own property descriptors.
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*
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* @private
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* @returns {Object} copy of `process.env`
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*/
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function copy() {
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var keys;
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var env;
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var out;
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var i;
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keys = objectKeys( ENV );
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out = {};
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for ( i = 0; i < keys.length; i++ ) {
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env = keys[ i ];
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out[ env ] = ENV[ env ];
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}
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return out;
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}
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// MAIN //
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/**
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* Returns worker environment variables.
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*
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* @private
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* @param {Options} opts - options
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* @param {string} opts.cmd - executable file/command
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* @param {boolean} opts.ordered - boolean indicating whether to preserve order of script output
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* @param {(NonNegativeInteger|null)} opts.uid - process user identity
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* @param {(NonNegativeInteger|null)} opts.gid - process group identity
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* @param {string} opts.encoding - `stdio` encoding
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* @param {NonNegativeInteger} opts.maxBuffer - max child process `stdio` buffer size
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* @returns {Object} environment variables
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*/
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function env( opts ) {
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var out = copy();
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out.WORKER_CMD = opts.cmd;
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out.WORKER_ENCODING = opts.encoding;
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out.WORKER_MAX_BUFFER = opts.maxBuffer;
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if ( opts.ordered ) {
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out.WORKER_ORDERED = '1';
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}
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if ( opts.uid ) {
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out.WORKER_UID = opts.uid;
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}
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if ( opts.gid ) {
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out.WORKER_GID = opts.gid;
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}
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return out;
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}
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// EXPORTS //
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module.exports = env;
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