lepu-test-platform-web/node_modules/enhanced-resolve/lib/ModulesInHierachicDirectori...

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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var createInnerCallback = require("./createInnerCallback");
var forEachBail = require("./forEachBail");
var getPaths = require("./getPaths");
function ModulesInHierachicDirectoriesPlugin(source, directories, target) {
this.source = source;
this.directories = [].concat(directories);
this.target = target;
}
module.exports = ModulesInHierachicDirectoriesPlugin;
ModulesInHierachicDirectoriesPlugin.prototype.apply = function(resolver) {
var directories = this.directories;
var target = this.target;
resolver.plugin(this.source, function(request, callback) {
var fs = this.fileSystem;
var topLevelCallback = callback;
var addrs = getPaths(request.path).paths.map(function(p) {
return directories.map(function(d) {
return this.join(p, d);
}, this);
}, this).reduce(function(array, p) {
array.push.apply(array, p);
return array;
}, []);
forEachBail(addrs, function(addr, callback) {
fs.stat(addr, function(err, stat) {
if(!err && stat && stat.isDirectory()) {
var obj = Object.assign({}, request, {
path: addr,
request: "./" + request.request
});
var message = "looking for modules in " + addr;
return resolver.doResolve(target, obj, message, createInnerCallback(callback, topLevelCallback));
}
if(topLevelCallback.log) topLevelCallback.log(addr + " doesn't exist or is not a directory");
if(topLevelCallback.missing) topLevelCallback.missing.push(addr);
return callback();
});
}, callback);
});
};