1 files changed, 27 insertions, 0 deletions
diff --git a/deps/npm/lib/utils/escape-arg.js b/deps/npm/lib/utils/escape-arg.js
new file mode 100644
index 0000000000..d12ee5edf5
--- /dev/null
+++ b/deps/npm/lib/utils/escape-arg.js
@@ -0,0 +1,27 @@
+'use strict'
+var path = require('path')
+var isWindowsShell = require('./is-windows-shell.js')
+
+/*
+Escape the name of an executable suitable for passing to the system shell.
+
+Windows is easy, wrap in double quotes and you're done, as there's no
+facility to create files with quotes in their names.
+
+Unix-likes are a little more complicated, wrap in single quotes and escape
+any single quotes in the filename.
+*/
+
+module.exports = escapify
+
+function escapify (str) {
+  if (isWindowsShell) {
+    return '"' + path.normalize(str) + '"'
+  } else {
+    if (/[^-_.~/\w]/.test(str)) {
+      return "'" + str.replace(/'/g, "'\"'\"'") + "'"
+    } else {
+      return str
+    }
+  }
+}