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module: reduce syscalls during require search

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require() now checks that the path exists before searching
further in it.

PR-URL: https://github.com/nodejs/io.js/pull/1920
Reviewed-By: Isaac Z. Schlueter <i@izs.me>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
This commit is contained in:
Pierre Inglebert 2015-06-08 23:44:18 +02:00 committed by Jeremiah Senkpiel
parent 061342a500
commit a71ee93afe
1 changed files with 3 additions and 1 deletions
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4
lib/module.js
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@ -129,7 +129,7 @@ const noopDeprecateRequireDot = util.deprecate(function() {},
Module._findPath = function(request, paths) {
var exts = Object.keys(Module._extensions);
if (request.charAt(0) === '/') {
if (path.isAbsolute(request)) {
paths = [''];
}
@ -142,6 +142,8 @@ Module._findPath = function(request, paths) {
// For each path
for (var i = 0, PL = paths.length; i < PL; i++) {
// Don't search further if path doesn't exist
if (paths[i] && internalModuleStat(paths[i]) < 1) continue;
var basePath = path.resolve(paths[i], request);
var filename;