Index: node_modules/chownr/chownr.js
===================================================================
--- node_modules/chownr/chownr.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
+++ node_modules/chownr/chownr.js	(revision 81bc7da776d8cda42939ef4ab350c88d13b4941f)
@@ -0,0 +1,167 @@
+'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