39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
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var path = require('path');
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module.exports = function (start, opts) {
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var modules = opts.moduleDirectory
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? [].concat(opts.moduleDirectory)
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: ['node_modules']
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;
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// ensure that `start` is an absolute path at this point,
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// resolving against the process' current working directory
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start = path.resolve(start);
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var prefix = '/';
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if (/^([A-Za-z]:)/.test(start)) {
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prefix = '';
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} else if (/^\\\\/.test(start)) {
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prefix = '\\\\';
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}
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var splitRe = process.platform === 'win32' ? /[\/\\]/ : /\/+/;
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var parts = start.split(splitRe);
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var dirs = [];
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for (var i = parts.length - 1; i >= 0; i--) {
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if (modules.indexOf(parts[i]) !== -1) continue;
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dirs = dirs.concat(modules.map(function(module_dir) {
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return prefix + path.join(
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path.join.apply(path, parts.slice(0, i + 1)),
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module_dir
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);
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}));
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}
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if (process.platform === 'win32'){
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dirs[dirs.length-1] = dirs[dirs.length-1].replace(":", ":\\");
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}
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return dirs.concat(opts.paths);
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}
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