| var path = require('path'); |
| var parse = path.parse || require('path-parse'); |
| |
| var getNodeModulesDirs = function getNodeModulesDirs(absoluteStart, modules) { |
| var prefix = '/'; |
| if ((/^([A-Za-z]:)/).test(absoluteStart)) { |
| prefix = ''; |
| } else if ((/^\\\\/).test(absoluteStart)) { |
| prefix = '\\\\'; |
| } |
| |
| var paths = [absoluteStart]; |
| var parsed = parse(absoluteStart); |
| while (parsed.dir !== paths[paths.length - 1]) { |
| paths.push(parsed.dir); |
| parsed = parse(parsed.dir); |
| } |
| |
| return paths.reduce(function (dirs, aPath) { |
| return dirs.concat(modules.map(function (moduleDir) { |
| return path.resolve(prefix, aPath, moduleDir); |
| })); |
| }, []); |
| }; |
| |
| module.exports = function nodeModulesPaths(start, opts, request) { |
| var modules = opts && opts.moduleDirectory |
| ? [].concat(opts.moduleDirectory) |
| : ['node_modules']; |
| |
| if (opts && typeof opts.paths === 'function') { |
| return opts.paths( |
| request, |
| start, |
| function () { return getNodeModulesDirs(start, modules); }, |
| opts |
| ); |
| } |
| |
| var dirs = getNodeModulesDirs(start, modules); |
| return opts && opts.paths ? dirs.concat(opts.paths) : dirs; |
| }; |