webpack/lib/WarnCaseSensitiveModulesPlu...

48 lines
1.2 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const CaseSensitiveModulesWarning = require("./CaseSensitiveModulesWarning");
/** @typedef {import("./Compiler")} Compiler */
class WarnCaseSensitiveModulesPlugin {
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.hooks.compilation.tap(
"WarnCaseSensitiveModulesPlugin",
compilation => {
compilation.hooks.seal.tap("WarnCaseSensitiveModulesPlugin", () => {
const moduleWithoutCase = new Map();
for (const module of compilation.modules) {
const identifier = module.identifier().toLowerCase();
const array = moduleWithoutCase.get(identifier);
if (array) {
array.push(module);
} else {
moduleWithoutCase.set(identifier, [module]);
}
}
for (const pair of moduleWithoutCase) {
const array = pair[1];
if (array.length > 1) {
compilation.warnings.push(
new CaseSensitiveModulesWarning(array, compilation.moduleGraph)
);
}
}
});
}
);
}
}
module.exports = WarnCaseSensitiveModulesPlugin;