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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const WebpackError = require("./WebpackError");
module.exports = class CaseSensitiveModulesWarning extends WebpackError {
constructor(modules) {
super();
this.name = "CaseSensitiveModulesWarning";
const sortedModules = this._sort(modules);
const modulesList = this._moduleMessages(sortedModules);
this.message = "There are multiple modules with names that only differ in casing.\n" +
"This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.\n" +
`Use equal casing. Compare these module identifiers:\n${modulesList}`;
this.origin = this.module = sortedModules[0];
Error.captureStackTrace(this, this.constructor);
}
_sort(modules) {
return modules.slice().sort((a, b) => {
a = a.identifier();
b = b.identifier();
/* istanbul ignore next */
if(a < b) return -1;
/* istanbul ignore next */
if(a > b) return 1;
/* istanbul ignore next */
return 0;
});
}
_moduleMessages(modules) {
return modules.map((m) => {
let message = `* ${m.identifier()}`;
const validReasons = m.reasons.filter((reason) => reason.module);
if(validReasons.length > 0) {
message += `\n Used by ${validReasons.length} module(s), i. e.`;
message += `\n ${validReasons[0].module.identifier()}`;
}
return message;
}).join("\n");
}
};
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