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'use strict'
const fs = require('fs')
const path = require('path')
/* istanbul ignore next */
const LCHOWN = fs.lchown ? 'lchown' : 'chown'
/* istanbul ignore next */
const LCHOWNSYNC = fs.lchownSync ? 'lchownSync' : 'chownSync'
/* istanbul ignore next */
const needEISDIRHandled = fs.lchown &&
!process.version.match(/v1[1-9]+\./) &&
!process.version.match(/v10\.[6-9]/)
const lchownSync = (path, uid, gid) => {
try {
return fs[LCHOWNSYNC](path, uid, gid)
} catch (er) {
if (er.code !== 'ENOENT')
throw er
}
}
/* istanbul ignore next */
const chownSync = (path, uid, gid) => {
try {
return fs.chownSync(path, uid, gid)
} catch (er) {
if (er.code !== 'ENOENT')
throw er
}
}
/* istanbul ignore next */
const handleEISDIR =
needEISDIRHandled ? (path, uid, gid, cb) => er => {
// Node prior to v10 had a very questionable implementation of
// fs.lchown, which would always try to call fs.open on a directory
// Fall back to fs.chown in those cases.
if (!er || er.code !== 'EISDIR')
cb(er)
else
fs.chown(path, uid, gid, cb)
}
: (_, __, ___, cb) => cb
/* istanbul ignore next */
const handleEISDirSync =
needEISDIRHandled ? (path, uid, gid) => {
try {
return lchownSync(path, uid, gid)
} catch (er) {
if (er.code !== 'EISDIR')
throw er
chownSync(path, uid, gid)
}
}
: (path, uid, gid) => lchownSync(path, uid, gid)
// fs.readdir could only accept an options object as of node v6
const nodeVersion = process.version
let readdir = (path, options, cb) => fs.readdir(path, options, cb)
let readdirSync = (path, options) => fs.readdirSync(path, options)
/* istanbul ignore next */
if (/^v4\./.test(nodeVersion))
readdir = (path, options, cb) => fs.readdir(path, cb)
const chown = (cpath, uid, gid, cb) => {
fs[LCHOWN](cpath, uid, gid, handleEISDIR(cpath, uid, gid, er => {
// Skip ENOENT error
cb(er && er.code !== 'ENOENT' ? er : null)
}))
}
const chownrKid = (p, child, uid, gid, cb) => {
if (typeof child === 'string')
return fs.lstat(path.resolve(p, child), (er, stats) => {
// Skip ENOENT error
if (er)
return cb(er.code !== 'ENOENT' ? er : null)
stats.name = child
chownrKid(p, stats, uid, gid, cb)
})
if (child.isDirectory()) {
chownr(path.resolve(p, child.name), uid, gid, er => {
if (er)
return cb(er)
const cpath = path.resolve(p, child.name)
chown(cpath, uid, gid, cb)
})
} else {
const cpath = path.resolve(p, child.name)
chown(cpath, uid, gid, cb)
}
}
const chownr = (p, uid, gid, cb) => {
readdir(p, { withFileTypes: true }, (er, children) => {
// any error other than ENOTDIR or ENOTSUP means it's not readable,
// or doesn't exist. give up.
if (er) {
if (er.code === 'ENOENT')
return cb()
else if (er.code !== 'ENOTDIR' && er.code !== 'ENOTSUP')
return cb(er)
}
if (er || !children.length)
return chown(p, uid, gid, cb)
let len = children.length
let errState = null
const then = er => {
if (errState)
return
if (er)
return cb(errState = er)
if (-- len === 0)
return chown(p, uid, gid, cb)
}
children.forEach(child => chownrKid(p, child, uid, gid, then))
})
}
const chownrKidSync = (p, child, uid, gid) => {
if (typeof child === 'string') {
try {
const stats = fs.lstatSync(path.resolve(p, child))
stats.name = child
child = stats
} catch (er) {
if (er.code === 'ENOENT')
return
else
throw er
}
}
if (child.isDirectory())
chownrSync(path.resolve(p, child.name), uid, gid)
handleEISDirSync(path.resolve(p, child.name), uid, gid)
}
const chownrSync = (p, uid, gid) => {
let children
try {
children = readdirSync(p, { withFileTypes: true })
} catch (er) {
if (er.code === 'ENOENT')
return
else if (er.code === 'ENOTDIR' || er.code === 'ENOTSUP')
return handleEISDirSync(p, uid, gid)
else
throw er
}
if (children && children.length)
children.forEach(child => chownrKidSync(p, child, uid, gid))
return handleEISDirSync(p, uid, gid)
}
module.exports = chownr
chownr.sync = chownrSync
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