82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
364 lines
8.7 KiB
JavaScript
364 lines
8.7 KiB
JavaScript
module.exports = rimraf
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rimraf.sync = rimrafSync
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var assert = require("assert")
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var path = require("path")
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var fs = require("fs")
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var glob = require("glob")
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var defaultGlobOpts = {
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nosort: true,
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silent: true
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}
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// for EMFILE handling
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var timeout = 0
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var isWindows = (process.platform === "win32")
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function defaults (options) {
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var methods = [
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'unlink',
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'chmod',
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'stat',
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'lstat',
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'rmdir',
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'readdir'
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]
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methods.forEach(function(m) {
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options[m] = options[m] || fs[m]
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m = m + 'Sync'
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options[m] = options[m] || fs[m]
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})
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options.maxBusyTries = options.maxBusyTries || 3
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options.emfileWait = options.emfileWait || 1000
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if (options.glob === false) {
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options.disableGlob = true
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}
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options.disableGlob = options.disableGlob || false
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options.glob = options.glob || defaultGlobOpts
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}
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function rimraf (p, options, cb) {
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if (typeof options === 'function') {
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cb = options
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options = {}
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}
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assert(p, 'rimraf: missing path')
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assert.equal(typeof p, 'string', 'rimraf: path should be a string')
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assert.equal(typeof cb, 'function', 'rimraf: callback function required')
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assert(options, 'rimraf: invalid options argument provided')
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assert.equal(typeof options, 'object', 'rimraf: options should be object')
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defaults(options)
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var busyTries = 0
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var errState = null
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var n = 0
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if (options.disableGlob || !glob.hasMagic(p))
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return afterGlob(null, [p])
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options.lstat(p, function (er, stat) {
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if (!er)
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return afterGlob(null, [p])
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glob(p, options.glob, afterGlob)
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})
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function next (er) {
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errState = errState || er
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if (--n === 0)
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cb(errState)
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}
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function afterGlob (er, results) {
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if (er)
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return cb(er)
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n = results.length
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if (n === 0)
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return cb()
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results.forEach(function (p) {
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rimraf_(p, options, function CB (er) {
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if (er) {
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if ((er.code === "EBUSY" || er.code === "ENOTEMPTY" || er.code === "EPERM") &&
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busyTries < options.maxBusyTries) {
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busyTries ++
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var time = busyTries * 100
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// try again, with the same exact callback as this one.
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return setTimeout(function () {
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rimraf_(p, options, CB)
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}, time)
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}
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// this one won't happen if graceful-fs is used.
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if (er.code === "EMFILE" && timeout < options.emfileWait) {
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return setTimeout(function () {
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rimraf_(p, options, CB)
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}, timeout ++)
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}
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// already gone
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if (er.code === "ENOENT") er = null
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}
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timeout = 0
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next(er)
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})
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})
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}
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}
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// Two possible strategies.
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// 1. Assume it's a file. unlink it, then do the dir stuff on EPERM or EISDIR
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// 2. Assume it's a directory. readdir, then do the file stuff on ENOTDIR
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//
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// Both result in an extra syscall when you guess wrong. However, there
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// are likely far more normal files in the world than directories. This
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// is based on the assumption that a the average number of files per
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// directory is >= 1.
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//
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// If anyone ever complains about this, then I guess the strategy could
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// be made configurable somehow. But until then, YAGNI.
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function rimraf_ (p, options, cb) {
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assert(p)
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assert(options)
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assert(typeof cb === 'function')
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// sunos lets the root user unlink directories, which is... weird.
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// so we have to lstat here and make sure it's not a dir.
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options.lstat(p, function (er, st) {
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if (er && er.code === "ENOENT")
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return cb(null)
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// Windows can EPERM on stat. Life is suffering.
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if (er && er.code === "EPERM" && isWindows)
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fixWinEPERM(p, options, er, cb)
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if (st && st.isDirectory())
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return rmdir(p, options, er, cb)
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options.unlink(p, function (er) {
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if (er) {
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if (er.code === "ENOENT")
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return cb(null)
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if (er.code === "EPERM")
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return (isWindows)
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? fixWinEPERM(p, options, er, cb)
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: rmdir(p, options, er, cb)
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if (er.code === "EISDIR")
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return rmdir(p, options, er, cb)
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}
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return cb(er)
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})
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})
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}
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function fixWinEPERM (p, options, er, cb) {
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assert(p)
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assert(options)
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assert(typeof cb === 'function')
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if (er)
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assert(er instanceof Error)
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options.chmod(p, 666, function (er2) {
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if (er2)
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cb(er2.code === "ENOENT" ? null : er)
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else
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options.stat(p, function(er3, stats) {
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if (er3)
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cb(er3.code === "ENOENT" ? null : er)
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else if (stats.isDirectory())
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rmdir(p, options, er, cb)
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else
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options.unlink(p, cb)
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})
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})
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}
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function fixWinEPERMSync (p, options, er) {
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assert(p)
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assert(options)
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if (er)
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assert(er instanceof Error)
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try {
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options.chmodSync(p, 666)
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} catch (er2) {
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if (er2.code === "ENOENT")
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return
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else
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throw er
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}
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try {
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var stats = options.statSync(p)
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} catch (er3) {
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if (er3.code === "ENOENT")
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return
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else
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throw er
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}
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if (stats.isDirectory())
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rmdirSync(p, options, er)
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else
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options.unlinkSync(p)
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}
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function rmdir (p, options, originalEr, cb) {
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assert(p)
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assert(options)
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if (originalEr)
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assert(originalEr instanceof Error)
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assert(typeof cb === 'function')
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// try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
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// if we guessed wrong, and it's not a directory, then
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// raise the original error.
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options.rmdir(p, function (er) {
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if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM"))
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rmkids(p, options, cb)
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else if (er && er.code === "ENOTDIR")
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cb(originalEr)
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else
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cb(er)
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})
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}
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function rmkids(p, options, cb) {
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assert(p)
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assert(options)
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assert(typeof cb === 'function')
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options.readdir(p, function (er, files) {
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if (er)
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return cb(er)
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var n = files.length
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if (n === 0)
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return options.rmdir(p, cb)
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var errState
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files.forEach(function (f) {
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rimraf(path.join(p, f), options, function (er) {
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if (errState)
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return
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if (er)
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return cb(errState = er)
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if (--n === 0)
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options.rmdir(p, cb)
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})
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})
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})
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}
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// this looks simpler, and is strictly *faster*, but will
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// tie up the JavaScript thread and fail on excessively
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// deep directory trees.
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function rimrafSync (p, options) {
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options = options || {}
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defaults(options)
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assert(p, 'rimraf: missing path')
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assert.equal(typeof p, 'string', 'rimraf: path should be a string')
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assert(options, 'rimraf: missing options')
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assert.equal(typeof options, 'object', 'rimraf: options should be object')
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var results
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if (options.disableGlob || !glob.hasMagic(p)) {
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results = [p]
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} else {
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try {
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options.lstatSync(p)
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results = [p]
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} catch (er) {
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results = glob.sync(p, options.glob)
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}
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}
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if (!results.length)
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return
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for (var i = 0; i < results.length; i++) {
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var p = results[i]
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try {
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var st = options.lstatSync(p)
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} catch (er) {
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if (er.code === "ENOENT")
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return
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// Windows can EPERM on stat. Life is suffering.
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if (er.code === "EPERM" && isWindows)
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fixWinEPERMSync(p, options, er)
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}
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try {
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// sunos lets the root user unlink directories, which is... weird.
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if (st && st.isDirectory())
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rmdirSync(p, options, null)
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else
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options.unlinkSync(p)
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} catch (er) {
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if (er.code === "ENOENT")
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return
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if (er.code === "EPERM")
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return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
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if (er.code !== "EISDIR")
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throw er
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rmdirSync(p, options, er)
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}
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}
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}
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function rmdirSync (p, options, originalEr) {
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assert(p)
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assert(options)
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if (originalEr)
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assert(originalEr instanceof Error)
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try {
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options.rmdirSync(p)
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} catch (er) {
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if (er.code === "ENOENT")
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return
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if (er.code === "ENOTDIR")
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throw originalEr
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if (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM")
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rmkidsSync(p, options)
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}
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}
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function rmkidsSync (p, options) {
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assert(p)
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assert(options)
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options.readdirSync(p).forEach(function (f) {
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rimrafSync(path.join(p, f), options)
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})
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// We only end up here once we got ENOTEMPTY at least once, and
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// at this point, we are guaranteed to have removed all the kids.
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// So, we know that it won't be ENOENT or ENOTDIR or anything else.
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// try really hard to delete stuff on windows, because it has a
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// PROFOUNDLY annoying habit of not closing handles promptly when
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// files are deleted, resulting in spurious ENOTEMPTY errors.
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var retries = isWindows ? 100 : 1
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var i = 0
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do {
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var threw = true
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try {
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var ret = options.rmdirSync(p, options)
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threw = false
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return ret
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} finally {
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if (++i < retries && threw)
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continue
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}
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} while (true)
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}
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