NormalModuleReplacementPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const path = require("path");
class NormalModuleReplacementPlugin {
constructor(resourceRegExp, newResource) {
this.resourceRegExp = resourceRegExp;
this.newResource = newResource;
}
apply(compiler) {
const resourceRegExp = this.resourceRegExp;
const newResource = this.newResource;
compiler.plugin("normal-module-factory", (nmf) => {
nmf.plugin("before-resolve", (result, callback) => {
if(!result) return callback();
if(resourceRegExp.test(result.request)) {
if(typeof newResource === "function") {
newResource(result);
} else {
result.request = newResource;
}
}
return callback(null, result);
});
nmf.plugin("after-resolve", (result, callback) => {
if(!result) return callback();
if(resourceRegExp.test(result.resource)) {
if(typeof newResource === "function") {
newResource(result);
} else {
result.resource = path.resolve(path.dirname(result.resource), newResource);
}
}
return callback(null, result);
});
});
}
}
module.exports = NormalModuleReplacementPlugin;