vue hello world项目
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const CachedInputFileSystem = require("enhanced-resolve/lib/CachedInputFileSystem");
const fs = require("graceful-fs");
const createConsoleLogger = require("../logging/createConsoleLogger");
const NodeWatchFileSystem = require("./NodeWatchFileSystem");
const nodeConsole = require("./nodeConsole");
/** @typedef {import("../../declarations/WebpackOptions").InfrastructureLogging} InfrastructureLogging */
/** @typedef {import("../Compiler")} Compiler */
class NodeEnvironmentPlugin {
/**
* @param {Object} options options
* @param {InfrastructureLogging} options.infrastructureLogging infrastructure logging options
*/
constructor(options) {
this.options = options;
}
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
const { infrastructureLogging } = this.options;
compiler.infrastructureLogger = createConsoleLogger({
level: infrastructureLogging.level || "info",
debug: infrastructureLogging.debug || false,
console:
infrastructureLogging.console ||
nodeConsole({
colors: infrastructureLogging.colors,
appendOnly: infrastructureLogging.appendOnly,
stream: infrastructureLogging.stream
})
});
compiler.inputFileSystem = new CachedInputFileSystem(fs, 60000);
const inputFileSystem = compiler.inputFileSystem;
compiler.outputFileSystem = fs;
compiler.intermediateFileSystem = fs;
compiler.watchFileSystem = new NodeWatchFileSystem(
compiler.inputFileSystem
);
compiler.hooks.beforeRun.tap("NodeEnvironmentPlugin", compiler => {
if (compiler.inputFileSystem === inputFileSystem) {
compiler.fsStartTime = Date.now();
inputFileSystem.purge();
}
});
}
}
module.exports = NodeEnvironmentPlugin;