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index.js
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index.js
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'use strict';
var Module = require('module');
var path = require('path');
var root = require('global-modules');
var isWindows = require('is-windows');
var unique = require('array-unique');
/**
* Returns an array of directories to use as a starting
* point for our lookups.
*
* @param {String} `cwd` Defaults to `process.cwd()`.
* @return {Array} Array of directories
*/
module.exports = function paths(cwd) {
var res = Module._nodeModulePaths(cwd || process.cwd());
res.push(root);
// fall back paths
if (process.env.NODE_PATH) {
var nodePaths = process.env.NODE_PATH.split(path.delimiter);
res = res.concat(nodePaths.filter(Boolean));
} else {
if (isWindows()) {
res.push(npm(path.join(process.env.APPDATA, 'npm')));
} else {
res.push(npm('/usr/lib'));
}
}
var mainModule = process.mainModule;
// run as a vscode plugin dependence
if (!mainModule || process.versions.electron) {
mainModule = module;
do {
mainModule = mainModule.parent;
} while (mainModule.parent && /([\/\\])node_modules\1/.test(mainModule.filename));
}
res = res.concat(mainModule.paths);
return unique(res);
};
function npm(dir) {
return path.join(dir, 'node_modules');
}