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rOACCT/node_modules/webpack/lib/runtime/AutoPublicPathRuntimeModule.js
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AutoPublicPathRuntimeModule.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
*/
"use strict";
const RuntimeGlobals = require("../RuntimeGlobals");
const RuntimeModule = require("../RuntimeModule");
const Template = require("../Template");
const JavascriptModulesPlugin = require("../javascript/JavascriptModulesPlugin");
const { getUndoPath } = require("../util/identifier");
class AutoPublicPathRuntimeModule extends RuntimeModule {
constructor() {
super("publicPath", RuntimeModule.STAGE_BASIC);
}
/**
* @returns {string} runtime code
*/
generate() {
const { compilation } = this;
const { scriptType, importMetaName } = compilation.outputOptions;
const chunkName = compilation.getPath(
JavascriptModulesPlugin.getChunkFilenameTemplate(
this.chunk,
compilation.outputOptions
),
{
chunk: this.chunk,
contentHashType: "javascript"
}
);
const undoPath = getUndoPath(chunkName, false);
return Template.asString([
"var scriptUrl;",
scriptType === "module"
? `if (typeof ${importMetaName}.url === "string") scriptUrl = ${importMetaName}.url`
: Template.asString([
`if (${RuntimeGlobals.global}.importScripts) scriptUrl = ${RuntimeGlobals.global}.location + "";`,
`var document = ${RuntimeGlobals.global}.document;`,
"if (!scriptUrl && document) {",
Template.indent([
`if (document.currentScript)`,
Template.indent(`scriptUrl = document.currentScript.src`),
"if (!scriptUrl) {",
Template.indent([
'var scripts = document.getElementsByTagName("script");',
"if(scripts.length) scriptUrl = scripts[scripts.length - 1].src"
]),
"}"
]),
"}"
]),
"// When supporting browsers where an automatic publicPath is not supported you must specify an output.publicPath manually via configuration",
'// or pass an empty string ("") and set the __webpack_public_path__ variable from your code to use your own logic.',
'if (!scriptUrl) throw new Error("Automatic publicPath is not supported in this browser");',
'scriptUrl = scriptUrl.replace(/#.*$/, "").replace(/\\?.*$/, "").replace(/\\/[^\\/]+$/, "/");',
!undoPath
? `${RuntimeGlobals.publicPath} = scriptUrl;`
: `${RuntimeGlobals.publicPath} = scriptUrl + ${JSON.stringify(
undoPath
)};`
]);
}
}
module.exports = AutoPublicPathRuntimeModule;
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