52 lines
1.9 KiB
JavaScript
52 lines
1.9 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
|
||
|
|
var DescriptionFileUtils = require("./DescriptionFileUtils");
|
||
|
|
var createInnerCallback = require("./createInnerCallback");
|
||
|
|
var getInnerRequest = require("./getInnerRequest");
|
||
|
|
|
||
|
|
function AliasFieldPlugin(source, field, target) {
|
||
|
|
this.source = source;
|
||
|
|
this.field = field;
|
||
|
|
this.target = target;
|
||
|
|
}
|
||
|
|
module.exports = AliasFieldPlugin;
|
||
|
|
|
||
|
|
AliasFieldPlugin.prototype.apply = function(resolver) {
|
||
|
|
var target = this.target;
|
||
|
|
var field = this.field;
|
||
|
|
resolver.plugin(this.source, function(request, callback) {
|
||
|
|
if(!request.descriptionFileData) return callback();
|
||
|
|
var innerRequest = getInnerRequest(resolver, request);
|
||
|
|
if(!innerRequest) return callback();
|
||
|
|
var fieldData = DescriptionFileUtils.getField(request.descriptionFileData, field);
|
||
|
|
if(typeof fieldData !== "object") {
|
||
|
|
if(callback.log) callback.log("Field '" + field + "' doesn't contain a valid alias configuration");
|
||
|
|
return callback();
|
||
|
|
}
|
||
|
|
var data1 = fieldData[innerRequest];
|
||
|
|
var data2 = fieldData[innerRequest.replace(/^\.\//, "")];
|
||
|
|
var data = typeof data1 !== "undefined" ? data1 : data2;
|
||
|
|
if(data === innerRequest) return callback();
|
||
|
|
if(data === undefined) return callback();
|
||
|
|
if(data === false) {
|
||
|
|
var ignoreObj = Object.assign({}, request, {
|
||
|
|
path: false
|
||
|
|
});
|
||
|
|
return callback(null, ignoreObj);
|
||
|
|
}
|
||
|
|
var obj = Object.assign({}, request, {
|
||
|
|
path: request.descriptionFileRoot,
|
||
|
|
request: data
|
||
|
|
});
|
||
|
|
resolver.doResolve(target, obj, "aliased from description file " + request.descriptionFilePath + " with mapping '" + innerRequest + "' to '" + data + "'", createInnerCallback(function(err, result) {
|
||
|
|
if(arguments.length > 0) return callback(err, result);
|
||
|
|
|
||
|
|
// Don't allow other aliasing or raw request
|
||
|
|
callback(null, null);
|
||
|
|
}, callback));
|
||
|
|
});
|
||
|
|
};
|