/usr/lib/nodejs/rimraf/rimraf.js is in node-rimraf 2.2.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | module.exports = rimraf
rimraf.sync = rimrafSync
var path = require("path")
, fs
try {
// optional dependency
fs = require("graceful-fs")
} catch (er) {
fs = require("fs")
}
// for EMFILE handling
var timeout = 0
exports.EMFILE_MAX = 1000
exports.BUSYTRIES_MAX = 3
var isWindows = (process.platform === "win32")
function rimraf (p, cb) {
if (!cb) throw new Error("No callback passed to rimraf()")
var busyTries = 0
rimraf_(p, function CB (er) {
if (er) {
if (er.code === "EBUSY" && busyTries < exports.BUSYTRIES_MAX) {
busyTries ++
var time = busyTries * 100
// try again, with the same exact callback as this one.
return setTimeout(function () {
rimraf_(p, 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, 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, cb) {
fs.unlink(p, function (er) {
if (er) {
if (er.code === "ENOENT")
return cb()
if (er.code === "EPERM")
return (isWindows) ? fixWinEPERM(p, er, cb) : rmdir(p, er, cb)
if (er.code === "EISDIR")
return rmdir(p, er, cb)
}
return cb(er)
})
}
function fixWinEPERM (p, er, cb) {
fs.chmod(p, 666, function (er2) {
if (er2)
cb(er2.code === "ENOENT" ? null : er)
else
fs.stat(p, function(er3, stats) {
if (er3)
cb(er3.code === "ENOENT" ? null : er)
else if (stats.isDirectory())
rmdir(p, er, cb)
else
fs.unlink(p, cb)
})
})
}
function fixWinEPERMSync (p, er, cb) {
try {
fs.chmodSync(p, 666)
} catch (er2) {
if (er2.code !== "ENOENT")
throw er
}
try {
var stats = fs.statSync(p)
} catch (er3) {
if (er3 !== "ENOENT")
throw er
}
if (stats.isDirectory())
rmdirSync(p, er)
else
fs.unlinkSync(p)
}
function rmdir (p, originalEr, cb) {
// 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.
fs.rmdir(p, function (er) {
if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST"))
rmkids(p, cb)
else if (er && er.code === "ENOTDIR")
cb(originalEr)
else
cb(er)
})
}
function rmkids(p, cb) {
fs.readdir(p, function (er, files) {
if (er)
return cb(er)
var n = files.length
if (n === 0)
return fs.rmdir(p, cb)
var errState
files.forEach(function (f) {
rimraf(path.join(p, f), function (er) {
if (errState)
return
if (er)
return cb(errState = er)
if (--n === 0)
fs.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) {
try {
fs.unlinkSync(p)
} catch (er) {
if (er.code === "ENOENT")
return
if (er.code === "EPERM")
return isWindows ? fixWinEPERMSync(p, er) : rmdirSync(p, er)
if (er.code !== "EISDIR")
throw er
rmdirSync(p, er)
}
}
function rmdirSync (p, originalEr) {
try {
fs.rmdirSync(p)
} catch (er) {
if (er.code === "ENOENT")
return
if (er.code === "ENOTDIR")
throw originalEr
if (er.code === "ENOTEMPTY" || er.code === "EEXIST")
rmkidsSync(p)
}
}
function rmkidsSync (p) {
fs.readdirSync(p).forEach(function (f) {
rimrafSync(path.join(p, f))
})
fs.rmdirSync(p)
}
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