From bb29ba1359042994b230960635da91b2080afb73 Mon Sep 17 00:00:00 2001
From: ZhenHappy <q505507538@gmail.com>
Date: Sat, 4 Feb 2017 16:10:11 +0800
Subject: [PATCH] Update nvm.plugin.zsh

---
 plugins/nvm/nvm.plugin.zsh | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/plugins/nvm/nvm.plugin.zsh b/plugins/nvm/nvm.plugin.zsh
index 86338aa7..c0073f02 100644
--- a/plugins/nvm/nvm.plugin.zsh
+++ b/plugins/nvm/nvm.plugin.zsh
@@ -1,6 +1,21 @@
+# if homebrew installed
+_homebrew-installed() {
+    type brew &> /dev/null
+}
+
+# if nvm from homebrew installed
+_nvm-from-homebrew-installed() {
+    brew --prefix nvm &> /dev/null
+}
+
 # Set NVM_DIR if it isn't already defined
 [[ -z "$NVM_DIR" ]] && export NVM_DIR="$HOME/.nvm"
 
 # Load nvm if it exists
-[[ -f "$NVM_DIR/nvm.sh" ]] && source "$NVM_DIR/nvm.sh"
-[[ -f "$(brew --prefix nvm)/nvm.sh" ]] && source "$(brew --prefix nvm)/nvm.sh"
+if [[ -f "$NVM_DIR/nvm.sh" ]] ; then
+    source "$NVM_DIR/nvm.sh"
+elif _homebrew-installed && _nvm-from-homebrew-installed ; then
+    source "$(brew --prefix nvm)/nvm.sh"
+else
+    unset NVM_DIR
+fi