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 Compiler = require("./Compiler");
const MultiCompiler = require("./MultiCompiler");
const NormalModule = require("./NormalModule");
const createSchemaValidation = require("./util/create-schema-validation");
const { contextify } = require("./util/identifier");
/** @typedef {import("../declarations/plugins/ProgressPlugin").HandlerFunction} HandlerFunction */
/** @typedef {import("../declarations/plugins/ProgressPlugin").ProgressPluginArgument} ProgressPluginArgument */
/** @typedef {import("../declarations/plugins/ProgressPlugin").ProgressPluginOptions} ProgressPluginOptions */
const validate = createSchemaValidation(
require("../schemas/plugins/ProgressPlugin.check.js"),
() => require("../schemas/plugins/ProgressPlugin.json"),
{
name: "Progress Plugin",
baseDataPath: "options"
}
);
const median3 = (a, b, c) => {
return a + b + c - Math.max(a, b, c) - Math.min(a, b, c);
};
const createDefaultHandler = (profile, logger) => {
/** @type {{ value: string, time: number }[]} */
const lastStateInfo = [];
const defaultHandler = (percentage, msg, ...args) => {
if (profile) {
if (percentage === 0) {
lastStateInfo.length = 0;
}
const fullState = [msg, ...args];
const state = fullState.map(s => s.replace(/\d+\/\d+ /g, ""));
const now = Date.now();
const len = Math.max(state.length, lastStateInfo.length);
for (let i = len; i >= 0; i--) {
const stateItem = i < state.length ? state[i] : undefined;
const lastStateItem =
i < lastStateInfo.length ? lastStateInfo[i] : undefined;
if (lastStateItem) {
if (stateItem !== lastStateItem.value) {
const diff = now - lastStateItem.time;
if (lastStateItem.value) {
let reportState = lastStateItem.value;
if (i > 0) {
reportState = lastStateInfo[i - 1].value + " > " + reportState;
}
const stateMsg = `${" | ".repeat(i)}${diff} ms ${reportState}`;
const d = diff;
// This depends on timing so we ignore it for coverage
/* istanbul ignore next */
{
if (d > 10000) {
logger.error(stateMsg);
} else if (d > 1000) {
logger.warn(stateMsg);
} else if (d > 10) {
logger.info(stateMsg);
} else if (d > 5) {
logger.log(stateMsg);
} else {
logger.debug(stateMsg);
}
}
}
if (stateItem === undefined) {
lastStateInfo.length = i;
} else {
lastStateItem.value = stateItem;
lastStateItem.time = now;
lastStateInfo.length = i + 1;
}
}
} else {
lastStateInfo[i] = {
value: stateItem,
time: now
};
}
}
}
logger.status(`${Math.floor(percentage * 100)}%`, msg, ...args);
if (percentage === 1 || (!msg && args.length === 0)) logger.status();
};
return defaultHandler;
};
/**
* @callback ReportProgress
* @param {number} p
* @param {...string} [args]
* @returns {void}
*/
/** @type {WeakMap<Compiler,ReportProgress>} */
const progressReporters = new WeakMap();
class ProgressPlugin {
/**
* @param {Compiler} compiler the current compiler
* @returns {ReportProgress} a progress reporter, if any
*/
static getReporter(compiler) {
return progressReporters.get(compiler);
}
/**
* @param {ProgressPluginArgument} options options
*/
constructor(options = {}) {
if (typeof options === "function") {
options = {
handler: options
};
}
validate(options);
options = { ...ProgressPlugin.defaultOptions, ...options };
this.profile = options.profile;
this.handler = options.handler;
this.modulesCount = options.modulesCount;
this.dependenciesCount = options.dependenciesCount;
this.showEntries = options.entries;
this.showModules = options.modules;
this.showDependencies = options.dependencies;
this.showActiveModules = options.activeModules;
this.percentBy = options.percentBy;
}
/**
* @param {Compiler | MultiCompiler} compiler webpack compiler
* @returns {void}
*/
apply(compiler) {
const handler =
this.handler ||
createDefaultHandler(
this.profile,
compiler.getInfrastructureLogger("webpack.Progress")
);
if (compiler instanceof MultiCompiler) {
this._applyOnMultiCompiler(compiler, handler);
} else if (compiler instanceof Compiler) {
this._applyOnCompiler(compiler, handler);
}
}
/**
* @param {MultiCompiler} compiler webpack multi-compiler
* @param {HandlerFunction} handler function that executes for every progress step
* @returns {void}
*/
_applyOnMultiCompiler(compiler, handler) {
const states = compiler.compilers.map(
() => /** @type {[number, ...string[]]} */ ([0])
);
compiler.compilers.forEach((compiler, idx) => {
new ProgressPlugin((p, msg, ...args) => {
states[idx] = [p, msg, ...args];
let sum = 0;
for (const [p] of states) sum += p;
handler(sum / states.length, `[${idx}] ${msg}`, ...args);
}).apply(compiler);
});
}
/**
* @param {Compiler} compiler webpack compiler
* @param {HandlerFunction} handler function that executes for every progress step
* @returns {void}
*/
_applyOnCompiler(compiler, handler) {
const showEntries = this.showEntries;
const showModules = this.showModules;
const showDependencies = this.showDependencies;
const showActiveModules = this.showActiveModules;
let lastActiveModule = "";
let currentLoader = "";
let lastModulesCount = 0;
let lastDependenciesCount = 0;
let lastEntriesCount = 0;
let modulesCount = 0;
let dependenciesCount = 0;
let entriesCount = 1;
let doneModules = 0;
let doneDependencies = 0;
let doneEntries = 0;
const activeModules = new Set();
let lastUpdate = 0;
const updateThrottled = () => {
if (lastUpdate + 500 < Date.now()) update();
};
const update = () => {
/** @type {string[]} */
const items = [];
const percentByModules =
doneModules /
Math.max(lastModulesCount || this.modulesCount || 1, modulesCount);
const percentByEntries =
doneEntries /
Math.max(lastEntriesCount || this.dependenciesCount || 1, entriesCount);
const percentByDependencies =
doneDependencies /
Math.max(lastDependenciesCount || 1, dependenciesCount);
let percentageFactor;
switch (this.percentBy) {
case "entries":
percentageFactor = percentByEntries;
break;
case "dependencies":
percentageFactor = percentByDependencies;
break;
case "modules":
percentageFactor = percentByModules;
break;
default:
percentageFactor = median3(
percentByModules,
percentByEntries,
percentByDependencies
);
}
const percentage = 0.1 + percentageFactor * 0.55;
if (currentLoader) {
items.push(
`import loader ${contextify(
compiler.context,
currentLoader,
compiler.root
)}`
);
} else {
const statItems = [];
if (showEntries) {
statItems.push(`${doneEntries}/${entriesCount} entries`);
}
if (showDependencies) {
statItems.push(
`${doneDependencies}/${dependenciesCount} dependencies`
);
}
if (showModules) {
statItems.push(`${doneModules}/${modulesCount} modules`);
}
if (showActiveModules) {
statItems.push(`${activeModules.size} active`);
}
if (statItems.length > 0) {
items.push(statItems.join(" "));
}
if (showActiveModules) {
items.push(lastActiveModule);
}
}
handler(percentage, "building", ...items);
lastUpdate = Date.now();
};
const factorizeAdd = () => {
dependenciesCount++;
if (dependenciesCount < 50 || dependenciesCount % 100 === 0)
updateThrottled();
};
const factorizeDone = () => {
doneDependencies++;
if (doneDependencies < 50 || doneDependencies % 100 === 0)
updateThrottled();
};
const moduleAdd = () => {
modulesCount++;
if (modulesCount < 50 || modulesCount % 100 === 0) updateThrottled();
};
// only used when showActiveModules is set
const moduleBuild = module => {
const ident = module.identifier();
if (ident) {
activeModules.add(ident);
lastActiveModule = ident;
update();
}
};
const entryAdd = (entry, options) => {
entriesCount++;
if (entriesCount < 5 || entriesCount % 10 === 0) updateThrottled();
};
const moduleDone = module => {
doneModules++;
if (showActiveModules) {
const ident = module.identifier();
if (ident) {
activeModules.delete(ident);
if (lastActiveModule === ident) {
lastActiveModule = "";
for (const m of activeModules) {
lastActiveModule = m;
}
update();
return;
}
}
}
if (doneModules < 50 || doneModules % 100 === 0) updateThrottled();
};
const entryDone = (entry, options) => {
doneEntries++;
update();
};
const cache = compiler
.getCache("ProgressPlugin")
.getItemCache("counts", null);
let cacheGetPromise;
compiler.hooks.beforeCompile.tap("ProgressPlugin", () => {
if (!cacheGetPromise) {
cacheGetPromise = cache.getPromise().then(
data => {
if (data) {
lastModulesCount = lastModulesCount || data.modulesCount;
lastDependenciesCount =
lastDependenciesCount || data.dependenciesCount;
}
return data;
},
err => {
// Ignore error
}
);
}
});
compiler.hooks.afterCompile.tapPromise("ProgressPlugin", compilation => {
if (compilation.compiler.isChild()) return Promise.resolve();
return cacheGetPromise.then(async oldData => {
if (
!oldData ||
oldData.modulesCount !== modulesCount ||
oldData.dependenciesCount !== dependenciesCount
) {
await cache.storePromise({ modulesCount, dependenciesCount });
}
});
});
compiler.hooks.compilation.tap("ProgressPlugin", compilation => {
if (compilation.compiler.isChild()) return;
lastModulesCount = modulesCount;
lastEntriesCount = entriesCount;
lastDependenciesCount = dependenciesCount;
modulesCount = dependenciesCount = entriesCount = 0;
doneModules = doneDependencies = doneEntries = 0;
compilation.factorizeQueue.hooks.added.tap(
"ProgressPlugin",
factorizeAdd
);
compilation.factorizeQueue.hooks.result.tap(
"ProgressPlugin",
factorizeDone
);
compilation.addModuleQueue.hooks.added.tap("ProgressPlugin", moduleAdd);
compilation.processDependenciesQueue.hooks.result.tap(
"ProgressPlugin",
moduleDone
);
if (showActiveModules) {
compilation.hooks.buildModule.tap("ProgressPlugin", moduleBuild);
}
compilation.hooks.addEntry.tap("ProgressPlugin", entryAdd);
compilation.hooks.failedEntry.tap("ProgressPlugin", entryDone);
compilation.hooks.succeedEntry.tap("ProgressPlugin", entryDone);
// avoid dynamic require if bundled with webpack
// @ts-expect-error
if (typeof __webpack_require__ !== "function") {
const requiredLoaders = new Set();
NormalModule.getCompilationHooks(compilation).beforeLoaders.tap(
"ProgressPlugin",
loaders => {
for (const loader of loaders) {
if (
loader.type !== "module" &&
!requiredLoaders.has(loader.loader)
) {
requiredLoaders.add(loader.loader);
currentLoader = loader.loader;
update();
require(loader.loader);
}
}
if (currentLoader) {
currentLoader = "";
update();
}
}
);
}
const hooks = {
finishModules: "finish module graph",
seal: "plugins",
optimizeDependencies: "dependencies optimization",
afterOptimizeDependencies: "after dependencies optimization",
beforeChunks: "chunk graph",
afterChunks: "after chunk graph",
optimize: "optimizing",
optimizeModules: "module optimization",
afterOptimizeModules: "after module optimization",
optimizeChunks: "chunk optimization",
afterOptimizeChunks: "after chunk optimization",
optimizeTree: "module and chunk tree optimization",
afterOptimizeTree: "after module and chunk tree optimization",
optimizeChunkModules: "chunk modules optimization",
afterOptimizeChunkModules: "after chunk modules optimization",
reviveModules: "module reviving",
beforeModuleIds: "before module ids",
moduleIds: "module ids",
optimizeModuleIds: "module id optimization",
afterOptimizeModuleIds: "module id optimization",
reviveChunks: "chunk reviving",
beforeChunkIds: "before chunk ids",
chunkIds: "chunk ids",
optimizeChunkIds: "chunk id optimization",
afterOptimizeChunkIds: "after chunk id optimization",
recordModules: "record modules",
recordChunks: "record chunks",
beforeModuleHash: "module hashing",
beforeCodeGeneration: "code generation",
beforeRuntimeRequirements: "runtime requirements",
beforeHash: "hashing",
afterHash: "after hashing",
recordHash: "record hash",
beforeModuleAssets: "module assets processing",
beforeChunkAssets: "chunk assets processing",
processAssets: "asset processing",
afterProcessAssets: "after asset optimization",
record: "recording",
afterSeal: "after seal"
};
const numberOfHooks = Object.keys(hooks).length;
Object.keys(hooks).forEach((name, idx) => {
const title = hooks[name];
const percentage = (idx / numberOfHooks) * 0.25 + 0.7;
compilation.hooks[name].intercept({
name: "ProgressPlugin",
call() {
handler(percentage, "sealing", title);
},
done() {
progressReporters.set(compiler, undefined);
handler(percentage, "sealing", title);
},
result() {
handler(percentage, "sealing", title);
},
error() {
handler(percentage, "sealing", title);
},
tap(tap) {
// p is percentage from 0 to 1
// args is any number of messages in a hierarchical matter
progressReporters.set(compilation.compiler, (p, ...args) => {
handler(percentage, "sealing", title, tap.name, ...args);
});
handler(percentage, "sealing", title, tap.name);
}
});
});
});
compiler.hooks.make.intercept({
name: "ProgressPlugin",
call() {
handler(0.1, "building");
},
done() {
handler(0.65, "building");
}
});
const interceptHook = (hook, progress, category, name) => {
hook.intercept({
name: "ProgressPlugin",
call() {
handler(progress, category, name);
},
done() {
progressReporters.set(compiler, undefined);
handler(progress, category, name);
},
result() {
handler(progress, category, name);
},
error() {
handler(progress, category, name);
},
tap(tap) {
progressReporters.set(compiler, (p, ...args) => {
handler(progress, category, name, tap.name, ...args);
});
handler(progress, category, name, tap.name);
}
});
};
compiler.cache.hooks.endIdle.intercept({
name: "ProgressPlugin",
call() {
handler(0, "");
}
});
interceptHook(compiler.cache.hooks.endIdle, 0.01, "cache", "end idle");
compiler.hooks.beforeRun.intercept({
name: "ProgressPlugin",
call() {
handler(0, "");
}
});
interceptHook(compiler.hooks.beforeRun, 0.01, "setup", "before run");
interceptHook(compiler.hooks.run, 0.02, "setup", "run");
interceptHook(compiler.hooks.watchRun, 0.03, "setup", "watch run");
interceptHook(
compiler.hooks.normalModuleFactory,
0.04,
"setup",
"normal module factory"
);
interceptHook(
compiler.hooks.contextModuleFactory,
0.05,
"setup",
"context module factory"
);
interceptHook(
compiler.hooks.beforeCompile,
0.06,
"setup",
"before compile"
);
interceptHook(compiler.hooks.compile, 0.07, "setup", "compile");
interceptHook(compiler.hooks.thisCompilation, 0.08, "setup", "compilation");
interceptHook(compiler.hooks.compilation, 0.09, "setup", "compilation");
interceptHook(compiler.hooks.finishMake, 0.69, "building", "finish");
interceptHook(compiler.hooks.emit, 0.95, "emitting", "emit");
interceptHook(compiler.hooks.afterEmit, 0.98, "emitting", "after emit");
interceptHook(compiler.hooks.done, 0.99, "done", "plugins");
compiler.hooks.done.intercept({
name: "ProgressPlugin",
done() {
handler(0.99, "");
}
});
interceptHook(
compiler.cache.hooks.storeBuildDependencies,
0.99,
"cache",
"store build dependencies"
);
interceptHook(compiler.cache.hooks.shutdown, 0.99, "cache", "shutdown");
interceptHook(compiler.cache.hooks.beginIdle, 0.99, "cache", "begin idle");
interceptHook(
compiler.hooks.watchClose,
0.99,
"end",
"closing watch compilation"
);
compiler.cache.hooks.beginIdle.intercept({
name: "ProgressPlugin",
done() {
handler(1, "");
}
});
compiler.cache.hooks.shutdown.intercept({
name: "ProgressPlugin",
done() {
handler(1, "");
}
});
}
}
ProgressPlugin.defaultOptions = {
profile: false,
modulesCount: 5000,
dependenciesCount: 10000,
modules: true,
dependencies: true,
activeModules: false,
entries: true
};
module.exports = ProgressPlugin;