From 4463e4a87ec2835e1454bbe4f99e5b054aa12855 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 11 Sep 2011 18:09:44 -0700
Subject: Move KV funcs to bashrc-functions.sh.

---
 bin/bashrc-functions.sh | 51 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'bin/bashrc-functions.sh')

diff --git a/bin/bashrc-functions.sh b/bin/bashrc-functions.sh
index 91ff6d738..4da558581 100644
--- a/bin/bashrc-functions.sh
+++ b/bin/bashrc-functions.sh
@@ -87,3 +87,54 @@ unset_unless_changed() {
 		fi
 	done
 }
+
+KV_major() {
+	[[ -z $1 ]] && return 1
+
+	local KV=$@
+	echo "${KV%%.*}"
+}
+
+KV_minor() {
+	[[ -z $1 ]] && return 1
+
+	local KV=$@
+	KV=${KV#*.}
+	echo "${KV%%.*}"
+}
+
+KV_micro() {
+	[[ -z $1 ]] && return 1
+
+	local KV=$@
+	KV=${KV#*.*.}
+	echo "${KV%%[^[:digit:]]*}"
+}
+
+KV_to_int() {
+	[[ -z $1 ]] && return 1
+
+	local KV_MAJOR=$(KV_major "$1")
+	local KV_MINOR=$(KV_minor "$1")
+	local KV_MICRO=$(KV_micro "$1")
+	local KV_int=$(( KV_MAJOR * 65536 + KV_MINOR * 256 + KV_MICRO ))
+
+	# We make version 2.2.0 the minimum version we will handle as
+	# a sanity check ... if its less, we fail ...
+	if [[ ${KV_int} -ge 131584 ]] ; then
+		echo "${KV_int}"
+		return 0
+	fi
+
+	return 1
+}
+
+_RC_GET_KV_CACHE=""
+get_KV() {
+	[[ -z ${_RC_GET_KV_CACHE} ]] \
+		&& _RC_GET_KV_CACHE=$(uname -r)
+
+	echo $(KV_to_int "${_RC_GET_KV_CACHE}")
+
+	return $?
+}
-- 
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