From 675c5584c825f85c72936d6110c74da2df143129 Mon Sep 17 00:00:00 2001
From: Postmodern <postmodern.mod3@gmail.com>
Date: Wed, 12 Dec 2012 00:23:49 -0800
Subject: [PATCH] Intial prototype of auto-switching for chruby (issue #40).

---
 share/chruby/auto.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 share/chruby/auto.sh

diff --git a/share/chruby/auto.sh b/share/chruby/auto.sh
new file mode 100644
index 00000000..c1b32403
--- /dev/null
+++ b/share/chruby/auto.sh
@@ -0,0 +1,17 @@
+function chruby_auto() {
+	local version_file="$PWD/.ruby-version"
+
+	if   [[ -f "$version_file"   ]]; then
+		chruby $(cat "$version_file")
+		export RUBY_VERSIONED_DIRECTORY="$PWD"
+	elif [[ "$PWD" != "$RUBY_VERSIONED_DIRECTORY"/* ]]; then
+		chruby_reset
+		unset RUBY_VERSIONED_DIRECTORY
+	fi
+}
+
+if [[ -n "$ZSH_VERSION" ]]; then
+	chpwd_functions=(${chpwd_functions[@]} "chruby_auto")
+else
+	function cd() { builtin cd "$@" && chruby_auto; }
+fi