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53 lines
1.6 KiB
53 lines
1.6 KiB
// Copyright 2013 Selenium committers
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// Copyright 2013 Software Freedom Conservancy
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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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var fs = require('fs'),
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path = require('path');
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var PATH_SEPARATOR = process.platform === 'win32' ? ';' : ':';
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// PUBLIC API
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/**
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* Searches the {@code PATH} environment variable for the given file.
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* @param {string} file The file to locate on the PATH.
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* @param {boolean=} opt_checkCwd Whether to always start with the search with
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* the current working directory, regardless of whether it is explicitly
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* listed on the PATH.
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* @return {?string} Path to the located file, or {@code null} if it could
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* not be found.
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*/
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exports.findInPath = function(file, opt_checkCwd) {
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if (opt_checkCwd) {
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var tmp = path.join(process.cwd(), file);
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if (fs.existsSync(tmp)) {
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return tmp;
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}
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}
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var dirs = process.env['PATH'].split(PATH_SEPARATOR);
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var found = null;
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dirs.forEach(function(dir) {
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var tmp = path.join(dir, file);
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if (!found && fs.existsSync(tmp)) {
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found = tmp;
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}
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});
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return found;
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};
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