X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=node_modules%2Ftemp%2Fnode_modules%2Frimraf%2Frimraf.js;fp=node_modules%2Ftemp%2Fnode_modules%2Frimraf%2Frimraf.js;h=eb96c46afde6d782568cd709578f790827aa1991;hp=0000000000000000000000000000000000000000;hb=a2bd1bf0c2c1f1a17d188f4dc0726a45494cefae;hpb=57c063afa3f66b07c4bbddc2d6129a96d90f0aad diff --git a/node_modules/temp/node_modules/rimraf/rimraf.js b/node_modules/temp/node_modules/rimraf/rimraf.js new file mode 100644 index 000000000..eb96c46af --- /dev/null +++ b/node_modules/temp/node_modules/rimraf/rimraf.js @@ -0,0 +1,248 @@ +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) +}