zsh: source fast-nvm script

this makes so if you cd into a directory with a .nvmrc, it will exec nvm
use

.fast-nvm.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+locate_nvmrc() {
+    locate -w .nvmrc | xargs -I'{}' realpath --relative-to=. '{}' | awk '/^(\.\.\/)*\.nvmrc$/ {print $0}' | sort | xargs -I'{}' realpath '{}'
+}
+
+export PATH="$HOME/.nvm/versions/node/$(/bin/cat $HOME/.nvm/alias/default)/bin:$PATH"
+nvm() {
+    . $HOME/.nvm/nvm.sh; nvm "$@"
+}
+
+DEFAULT=$(locate_nvmrc)
+cd() {
+    if builtin cd "$@" 2>/dev/null; then
+        FOUND="$(locate_nvmrc)"
+        if [ "$DEFAULT" != "$FOUND" ]; then
+            DEFAULT=$FOUND
+            nvm use
+        fi
+    else
+        if test -f "$@"; then echo "cd: not a directory: $*"
+        elif test -d "$@"; then echo "cd: can not change to $*"
+        else echo "cd: no such file or directory: $*"
+        fi
+        return 1
+    fi
+}

.zshrc

@@ -60,10 +60,7 @@ alias zathura="devour zathura"
 alias ranger="source ranger"
 
 # This loads nvm
-export PATH="$HOME/.nvm/versions/node/$(/bin/cat $HOME/.nvm/alias/default)/bin:$PATH"
-nvm() {
-  source $HOME/.nvm/nvm.sh; nvm "$@"
-}
+source $HOME/.fast-nvm.sh
 
 # Check if is integrated terminal emulator
 if [ -z "$INTEG_EMU" ]; then