--- /dev/null
+module.exports = rimraf
+rimraf.sync = rimrafSync
+
+var assert = require("assert")
+var path = require("path")
+var fs = require("fs")
+
+// for EMFILE handling
+var timeout = 0
+exports.EMFILE_MAX = 1000
+exports.BUSYTRIES_MAX = 3
+
+var isWindows = (process.platform === "win32")
+
+function defaults (options) {
+ var methods = [
+ 'unlink',
+ 'chmod',
+ 'stat',
+ 'rmdir',
+ 'readdir'
+ ]
+ methods.forEach(function(m) {
+ options[m] = options[m] || fs[m]
+ m = m + 'Sync'
+ options[m] = options[m] || fs[m]
+ })
+}
+
+function rimraf (p, options, cb) {
+ if (typeof options === 'function') {
+ cb = options
+ options = {}
+ }
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ defaults(options)
+
+ if (!cb) throw new Error("No callback passed to rimraf()")
+
+ var busyTries = 0
+ rimraf_(p, options, function CB (er) {
+ if (er) {
+ if (isWindows && (er.code === "EBUSY" || er.code === "ENOTEMPTY") &&
+ busyTries < exports.BUSYTRIES_MAX) {
+ busyTries ++
+ var time = busyTries * 100
+ // try again, with the same exact callback as this one.
+ return setTimeout(function () {
+ rimraf_(p, options, CB)
+ }, time)
+ }
+
+ // this one won't happen if graceful-fs is used.
+ if (er.code === "EMFILE" && timeout < exports.EMFILE_MAX) {
+ return setTimeout(function () {
+ rimraf_(p, options, CB)
+ }, timeout ++)
+ }
+
+ // already gone
+ if (er.code === "ENOENT") er = null
+ }
+
+ timeout = 0
+ cb(er)
+ })
+}
+
+// Two possible strategies.
+// 1. Assume it's a file. unlink it, then do the dir stuff on EPERM or EISDIR
+// 2. Assume it's a directory. readdir, then do the file stuff on ENOTDIR
+//
+// Both result in an extra syscall when you guess wrong. However, there
+// are likely far more normal files in the world than directories. This
+// is based on the assumption that a the average number of files per
+// directory is >= 1.
+//
+// If anyone ever complains about this, then I guess the strategy could
+// be made configurable somehow. But until then, YAGNI.
+function rimraf_ (p, options, cb) {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ options.unlink(p, function (er) {
+ if (er) {
+ if (er.code === "ENOENT")
+ return cb(null)
+ if (er.code === "EPERM")
+ return (isWindows)
+ ? fixWinEPERM(p, options, er, cb)
+ : rmdir(p, options, er, cb)
+ if (er.code === "EISDIR")
+ return rmdir(p, options, er, cb)
+ }
+ return cb(er)
+ })
+}
+
+function fixWinEPERM (p, options, er, cb) {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+ if (er)
+ assert(er instanceof Error)
+
+ options.chmod(p, 666, function (er2) {
+ if (er2)
+ cb(er2.code === "ENOENT" ? null : er)
+ else
+ options.stat(p, function(er3, stats) {
+ if (er3)
+ cb(er3.code === "ENOENT" ? null : er)
+ else if (stats.isDirectory())
+ rmdir(p, options, er, cb)
+ else
+ options.unlink(p, cb)
+ })
+ })
+}
+
+function fixWinEPERMSync (p, options, er) {
+ assert(p)
+ assert(options)
+ if (er)
+ assert(er instanceof Error)
+
+ try {
+ options.chmodSync(p, 666)
+ } catch (er2) {
+ if (er2.code === "ENOENT")
+ return
+ else
+ throw er
+ }
+
+ try {
+ var stats = options.statSync(p)
+ } catch (er3) {
+ if (er3.code === "ENOENT")
+ return
+ else
+ throw er
+ }
+
+ if (stats.isDirectory())
+ rmdirSync(p, options, er)
+ else
+ options.unlinkSync(p)
+}
+
+function rmdir (p, options, originalEr, cb) {
+ assert(p)
+ assert(options)
+ if (originalEr)
+ assert(originalEr instanceof Error)
+ assert(typeof cb === 'function')
+
+ // try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
+ // if we guessed wrong, and it's not a directory, then
+ // raise the original error.
+ options.rmdir(p, function (er) {
+ if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM"))
+ rmkids(p, options, cb)
+ else if (er && er.code === "ENOTDIR")
+ cb(originalEr)
+ else
+ cb(er)
+ })
+}
+
+function rmkids(p, options, cb) {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ options.readdir(p, function (er, files) {
+ if (er)
+ return cb(er)
+ var n = files.length
+ if (n === 0)
+ return options.rmdir(p, cb)
+ var errState
+ files.forEach(function (f) {
+ rimraf(path.join(p, f), options, function (er) {
+ if (errState)
+ return
+ if (er)
+ return cb(errState = er)
+ if (--n === 0)
+ options.rmdir(p, cb)
+ })
+ })
+ })
+}
+
+// this looks simpler, and is strictly *faster*, but will
+// tie up the JavaScript thread and fail on excessively
+// deep directory trees.
+function rimrafSync (p, options) {
+ options = options || {}
+ defaults(options)
+
+ assert(p)
+ assert(options)
+
+ try {
+ options.unlinkSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+ if (er.code === "EPERM")
+ return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
+ if (er.code !== "EISDIR")
+ throw er
+ rmdirSync(p, options, er)
+ }
+}
+
+function rmdirSync (p, options, originalEr) {
+ assert(p)
+ assert(options)
+ if (originalEr)
+ assert(originalEr instanceof Error)
+
+ try {
+ options.rmdirSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+ if (er.code === "ENOTDIR")
+ throw originalEr
+ if (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM")
+ rmkidsSync(p, options)
+ }
+}
+
+function rmkidsSync (p, options) {
+ assert(p)
+ assert(options)
+ options.readdirSync(p).forEach(function (f) {
+ rimrafSync(path.join(p, f), options)
+ })
+ options.rmdirSync(p, options)
+}
projects / yaffs-website / blobdiff