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 path = require("path");
/** @typedef {import("../../declarations/WebpackOptions").WatchOptions} WatchOptions */
/** @typedef {import("../FileSystemInfo").FileSystemInfoEntry} FileSystemInfoEntry */
/**
* @typedef {Object} IStats
* @property {() => boolean} isFile
* @property {() => boolean} isDirectory
* @property {() => boolean} isBlockDevice
* @property {() => boolean} isCharacterDevice
* @property {() => boolean} isSymbolicLink
* @property {() => boolean} isFIFO
* @property {() => boolean} isSocket
* @property {number | bigint} dev
* @property {number | bigint} ino
* @property {number | bigint} mode
* @property {number | bigint} nlink
* @property {number | bigint} uid
* @property {number | bigint} gid
* @property {number | bigint} rdev
* @property {number | bigint} size
* @property {number | bigint} blksize
* @property {number | bigint} blocks
* @property {number | bigint} atimeMs
* @property {number | bigint} mtimeMs
* @property {number | bigint} ctimeMs
* @property {number | bigint} birthtimeMs
* @property {Date} atime
* @property {Date} mtime
* @property {Date} ctime
* @property {Date} birthtime
*/
/**
* @typedef {Object} IDirent
* @property {() => boolean} isFile
* @property {() => boolean} isDirectory
* @property {() => boolean} isBlockDevice
* @property {() => boolean} isCharacterDevice
* @property {() => boolean} isSymbolicLink
* @property {() => boolean} isFIFO
* @property {() => boolean} isSocket
* @property {string | Buffer} name
*/
/** @typedef {function((NodeJS.ErrnoException | null)=): void} Callback */
/** @typedef {function((NodeJS.ErrnoException | null)=, Buffer=): void} BufferCallback */
/** @typedef {function((NodeJS.ErrnoException | null)=, Buffer|string=): void} BufferOrStringCallback */
/** @typedef {function((NodeJS.ErrnoException | null)=, (string | Buffer)[] | IDirent[]=): void} DirentArrayCallback */
/** @typedef {function((NodeJS.ErrnoException | null)=, string=): void} StringCallback */
/** @typedef {function((NodeJS.ErrnoException | null)=, number=): void} NumberCallback */
/** @typedef {function((NodeJS.ErrnoException | null)=, IStats=): void} StatsCallback */
/** @typedef {function((NodeJS.ErrnoException | Error | null)=, any=): void} ReadJsonCallback */
/** @typedef {function((NodeJS.ErrnoException | Error | null)=, IStats|string=): void} LstatReadlinkAbsoluteCallback */
/**
* @typedef {Object} WatcherInfo
* @property {Set<string>} changes get current aggregated changes that have not yet send to callback
* @property {Set<string>} removals get current aggregated removals that have not yet send to callback
* @property {Map<string, FileSystemInfoEntry | "ignore">} fileTimeInfoEntries get info about files
* @property {Map<string, FileSystemInfoEntry | "ignore">} contextTimeInfoEntries get info about directories
*/
// TODO webpack 6 deprecate missing getInfo
/**
* @typedef {Object} Watcher
* @property {function(): void} close closes the watcher and all underlying file watchers
* @property {function(): void} pause closes the watcher, but keeps underlying file watchers alive until the next watch call
* @property {function(): Set<string>=} getAggregatedChanges get current aggregated changes that have not yet send to callback
* @property {function(): Set<string>=} getAggregatedRemovals get current aggregated removals that have not yet send to callback
* @property {function(): Map<string, FileSystemInfoEntry | "ignore">} getFileTimeInfoEntries get info about files
* @property {function(): Map<string, FileSystemInfoEntry | "ignore">} getContextTimeInfoEntries get info about directories
* @property {function(): WatcherInfo=} getInfo get info about timestamps and changes
*/
/**
* @callback WatchMethod
* @param {Iterable<string>} files watched files
* @param {Iterable<string>} directories watched directories
* @param {Iterable<string>} missing watched exitance entries
* @param {number} startTime timestamp of start time
* @param {WatchOptions} options options object
* @param {function(Error=, Map<string, FileSystemInfoEntry | "ignore">, Map<string, FileSystemInfoEntry | "ignore">, Set<string>, Set<string>): void} callback aggregated callback
* @param {function(string, number): void} callbackUndelayed callback when the first change was detected
* @returns {Watcher} a watcher
*/
// TODO webpack 6 make optional methods required
/**
* @typedef {Object} OutputFileSystem
* @property {function(string, Buffer|string, Callback): void} writeFile
* @property {function(string, Callback): void} mkdir
* @property {function(string, DirentArrayCallback): void=} readdir
* @property {function(string, Callback): void=} rmdir
* @property {function(string, Callback): void=} unlink
* @property {function(string, StatsCallback): void} stat
* @property {function(string, StatsCallback): void=} lstat
* @property {function(string, BufferOrStringCallback): void} readFile
* @property {(function(string, string): string)=} join
* @property {(function(string, string): string)=} relative
* @property {(function(string): string)=} dirname
*/
/**
* @typedef {Object} InputFileSystem
* @property {function(string, BufferOrStringCallback): void} readFile
* @property {(function(string, ReadJsonCallback): void)=} readJson
* @property {function(string, BufferOrStringCallback): void} readlink
* @property {function(string, DirentArrayCallback): void} readdir
* @property {function(string, StatsCallback): void} stat
* @property {function(string, StatsCallback): void=} lstat
* @property {(function(string, BufferOrStringCallback): void)=} realpath
* @property {(function(string=): void)=} purge
* @property {(function(string, string): string)=} join
* @property {(function(string, string): string)=} relative
* @property {(function(string): string)=} dirname
*/
/**
* @typedef {Object} WatchFileSystem
* @property {WatchMethod} watch
*/
/**
* @typedef {Object} IntermediateFileSystemExtras
* @property {function(string): void} mkdirSync
* @property {function(string): NodeJS.WritableStream} createWriteStream
* @property {function(string, string, NumberCallback): void} open
* @property {function(number, Buffer, number, number, number, NumberCallback): void} read
* @property {function(number, Callback): void} close
* @property {function(string, string, Callback): void} rename
*/
/** @typedef {InputFileSystem & OutputFileSystem & IntermediateFileSystemExtras} IntermediateFileSystem */
/**
*
* @param {InputFileSystem|OutputFileSystem|undefined} fs a file system
* @param {string} rootPath the root path
* @param {string} targetPath the target path
* @returns {string} location of targetPath relative to rootPath
*/
const relative = (fs, rootPath, targetPath) => {
if (fs && fs.relative) {
return fs.relative(rootPath, targetPath);
} else if (path.posix.isAbsolute(rootPath)) {
return path.posix.relative(rootPath, targetPath);
} else if (path.win32.isAbsolute(rootPath)) {
return path.win32.relative(rootPath, targetPath);
} else {
throw new Error(
`${rootPath} is neither a posix nor a windows path, and there is no 'relative' method defined in the file system`
);
}
};
exports.relative = relative;
/**
* @param {InputFileSystem|OutputFileSystem|undefined} fs a file system
* @param {string} rootPath a path
* @param {string} filename a filename
* @returns {string} the joined path
*/
const join = (fs, rootPath, filename) => {
if (fs && fs.join) {
return fs.join(rootPath, filename);
} else if (path.posix.isAbsolute(rootPath)) {
return path.posix.join(rootPath, filename);
} else if (path.win32.isAbsolute(rootPath)) {
return path.win32.join(rootPath, filename);
} else {
throw new Error(
`${rootPath} is neither a posix nor a windows path, and there is no 'join' method defined in the file system`
);
}
};
exports.join = join;
/**
* @param {InputFileSystem|OutputFileSystem|undefined} fs a file system
* @param {string} absPath an absolute path
* @returns {string} the parent directory of the absolute path
*/
const dirname = (fs, absPath) => {
if (fs && fs.dirname) {
return fs.dirname(absPath);
} else if (path.posix.isAbsolute(absPath)) {
return path.posix.dirname(absPath);
} else if (path.win32.isAbsolute(absPath)) {
return path.win32.dirname(absPath);
} else {
throw new Error(
`${absPath} is neither a posix nor a windows path, and there is no 'dirname' method defined in the file system`
);
}
};
exports.dirname = dirname;
/**
* @param {OutputFileSystem} fs a file system
* @param {string} p an absolute path
* @param {function(Error=): void} callback callback function for the error
* @returns {void}
*/
const mkdirp = (fs, p, callback) => {
fs.mkdir(p, err => {
if (err) {
if (err.code === "ENOENT") {
const dir = dirname(fs, p);
if (dir === p) {
callback(err);
return;
}
mkdirp(fs, dir, err => {
if (err) {
callback(err);
return;
}
fs.mkdir(p, err => {
if (err) {
if (err.code === "EEXIST") {
callback();
return;
}
callback(err);
return;
}
callback();
});
});
return;
} else if (err.code === "EEXIST") {
callback();
return;
}
callback(err);
return;
}
callback();
});
};
exports.mkdirp = mkdirp;
/**
* @param {IntermediateFileSystem} fs a file system
* @param {string} p an absolute path
* @returns {void}
*/
const mkdirpSync = (fs, p) => {
try {
fs.mkdirSync(p);
} catch (err) {
if (err) {
if (err.code === "ENOENT") {
const dir = dirname(fs, p);
if (dir === p) {
throw err;
}
mkdirpSync(fs, dir);
fs.mkdirSync(p);
return;
} else if (err.code === "EEXIST") {
return;
}
throw err;
}
}
};
exports.mkdirpSync = mkdirpSync;
/**
* @param {InputFileSystem} fs a file system
* @param {string} p an absolute path
* @param {ReadJsonCallback} callback callback
* @returns {void}
*/
const readJson = (fs, p, callback) => {
if ("readJson" in fs) return fs.readJson(p, callback);
fs.readFile(p, (err, buf) => {
if (err) return callback(err);
let data;
try {
data = JSON.parse(buf.toString("utf-8"));
} catch (e) {
return callback(e);
}
return callback(null, data);
});
};
exports.readJson = readJson;
/**
* @param {InputFileSystem} fs a file system
* @param {string} p an absolute path
* @param {ReadJsonCallback} callback callback
* @returns {void}
*/
const lstatReadlinkAbsolute = (fs, p, callback) => {
let i = 3;
const doReadLink = () => {
fs.readlink(p, (err, target) => {
if (err && --i > 0) {
// It might was just changed from symlink to file
// we retry 2 times to catch this case before throwing the error
return doStat();
}
if (err || !target) return doStat();
const value = target.toString();
callback(null, join(fs, dirname(fs, p), value));
});
};
const doStat = () => {
if ("lstat" in fs) {
return fs.lstat(p, (err, stats) => {
if (err) return callback(err);
if (stats.isSymbolicLink()) {
return doReadLink();
}
callback(null, stats);
});
} else {
return fs.stat(p, callback);
}
};
if ("lstat" in fs) return doStat();
doReadLink();
};
exports.lstatReadlinkAbsolute = lstatReadlinkAbsolute;