From 8c8fe2a1715df916f0b5d785fee32c8a4a40c05b Mon Sep 17 00:00:00 2001
From: Danny Grove <groved@google.com>
Date: Fri, 13 Jan 2017 17:15:12 -0800
Subject: nvm: add autoloading of nvm version in .nvmrc

Closes #5782
Fixes #8959
Closes #8976
---
 plugins/nvm/nvm.plugin.zsh | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

(limited to 'plugins/nvm/nvm.plugin.zsh')

diff --git a/plugins/nvm/nvm.plugin.zsh b/plugins/nvm/nvm.plugin.zsh
index b2355b7ef..1e9b26e7a 100644
--- a/plugins/nvm/nvm.plugin.zsh
+++ b/plugins/nvm/nvm.plugin.zsh
@@ -35,6 +35,33 @@ if (( $+NVM_LAZY )); then
   }
 fi
 
+# Autoload nvm when finding a .nvmrc file in the current directory
+# Adapted from: https://github.com/nvm-sh/nvm#zsh
+if (( $+NVM_AUTOLOAD )); then
+  load-nvmrc() {
+    local node_version="$(nvm version)"
+    local nvmrc_path="$(nvm_find_nvmrc)"
+
+    if [[ -n "$nvmrc_path" ]]; then
+      local nvmrc_node_version=$(nvm version "$(cat "${nvmrc_path}")")
+
+      if [[ "$nvmrc_node_version" = "N/A" ]]; then
+        nvm install
+      elif [[ "$nvmrc_node_version" != "$node_version" ]]; then
+        nvm use
+      fi
+    elif [[ "$node_version" != "$(nvm version default)" ]]; then
+      echo "Reverting to nvm default version"
+      nvm use default
+    fi
+  }
+
+  autoload -U add-zsh-hook
+  add-zsh-hook chpwd load-nvmrc
+
+  load-nvmrc
+fi
+
 # Load nvm bash completion
 for nvm_completion in "$NVM_DIR/bash_completion" "$NVM_HOMEBREW/etc/bash_completion.d/nvm"; do
   if [[ -f "$nvm_completion" ]]; then
@@ -47,4 +74,4 @@ for nvm_completion in "$NVM_DIR/bash_completion" "$NVM_HOMEBREW/etc/bash_complet
   fi
 done
 
-unset NVM_HOMEBREW NVM_LAZY nvm_completion
+unset NVM_HOMEBREW NVM_LAZY NVM_AUTOLOAD nvm_completion
-- 
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