1 files changed, 41 insertions, 23 deletions

diff --git a/node_modules/rimraf/bin.js b/node_modules/rimraf/bin.js
index 0d1e17be7..023814cc9 100755
--- a/node_modules/rimraf/bin.js
+++ b/node_modules/rimraf/bin.js
@@ -1,11 +1,24 @@
 #!/usr/bin/env node
 
-var rimraf = require('./')
+const rimraf = require('./')
 
-var help = false
-var dashdash = false
-var noglob = false
-var args = process.argv.slice(2).filter(function(arg) {
+const path = require('path')
+
+const isRoot = arg => /^(\/|[a-zA-Z]:\\)$/.test(path.resolve(arg))
+const filterOutRoot = arg => {
+  const ok = preserveRoot === false || !isRoot(arg)
+  if (!ok) {
+    console.error(`refusing to remove ${arg}`)
+    console.error('Set --no-preserve-root to allow this')
+  }
+  return ok
+}
+
+let help = false
+let dashdash = false
+let noglob = false
+let preserveRoot = true
+const args = process.argv.slice(2).filter(arg => {
   if (dashdash)
     return !!arg
   else if (arg === '--')
@@ -16,35 +29,40 @@ var args = process.argv.slice(2).filter(function(arg) {
     noglob = false
   else if (arg.match(/^(-+|\/)(h(elp)?|\?)$/))
     help = true
+  else if (arg === '--preserve-root')
+    preserveRoot = true
+  else if (arg === '--no-preserve-root')
+    preserveRoot = false
   else
     return !!arg
-})
+}).filter(arg => !preserveRoot || filterOutRoot(arg))
+
+const go = n => {
+  if (n >= args.length)
+    return
+  const options = noglob ? { glob: false } : {}
+  rimraf(args[n], options, er => {
+    if (er)
+      throw er
+    go(n+1)
+  })
+}
 
 if (help || args.length === 0) {
   // If they didn't ask for help, then this is not a "success"
-  var log = help ? console.log : console.error
+  const log = help ? console.log : console.error
   log('Usage: rimraf <path> [<path> ...]')
   log('')
   log('  Deletes all files and folders at "path" recursively.')
   log('')
   log('Options:')
   log('')
-  log('  -h, --help     Display this usage info')
-  log('  -G, --no-glob  Do not expand glob patterns in arguments')
-  log('  -g, --glob     Expand glob patterns in arguments (default)')
+  log('  -h, --help          Display this usage info')
+  log('  -G, --no-glob       Do not expand glob patterns in arguments')
+  log('  -g, --glob          Expand glob patterns in arguments (default)')
+  log('  --preserve-root     Do not remove \'/\' (default)')
+  log('  --no-preserve-root  Do not treat \'/\' specially')
+  log('  --                  Stop parsing flags')
   process.exit(help ? 0 : 1)
 } else
   go(0)
-
-function go (n) {
-  if (n >= args.length)
-    return
-  var options = {}
-  if (noglob)
-    options = { glob: false }
-  rimraf(args[n], options, function (er) {
-    if (er)
-      throw er
-    go(n+1)
-  })
-}