From 758da30df2ca3abbdad24c972f590eaa40e70930 Mon Sep 17 00:00:00 2001
From: Martin Jansa <martin.jansa@gmail.com>
Date: Wed, 18 Nov 2009 03:53:23 +0000
Subject: update-alternatives-cworth: use latest installed alternative

* if there is more alternatives with higest priority, use the one last
  in alternatives file (latest installed)
* if target exists and its directory, remove link, otherwise new
  alternative link is created inside that direstory

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 .../update-alternatives.use.last.patch             | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 recipes/update-alternatives/update-alternatives-cworth/update-alternatives.use.last.patch

(limited to 'recipes/update-alternatives/update-alternatives-cworth/update-alternatives.use.last.patch')

diff --git a/recipes/update-alternatives/update-alternatives-cworth/update-alternatives.use.last.patch b/recipes/update-alternatives/update-alternatives-cworth/update-alternatives.use.last.patch
new file mode 100644
index 0000000000..7bd5bd268b
--- /dev/null
+++ b/recipes/update-alternatives/update-alternatives-cworth/update-alternatives.use.last.patch
@@ -0,0 +1,34 @@
+diff -uNr C.orig/update-alternatives C/update-alternatives
+--- C.orig/update-alternatives	2003-03-28 17:39:45.000000000 +0100
++++ C/update-alternatives	2009-09-17 16:46:59.000000000 +0200
+@@ -97,8 +97,8 @@
+ 
+ ##	path=`sed -ne "1!p" $ad/$name | sort -nr -k2 | head -1 | sed 's/ .*//'`
+ ## busybox safe:
+-	path=`sed -ne "1!p" $ad/$name | sed -e "s/\(.*\) \(.*\)/\2 \1/g" | sort -nr | head -n 1 | sed 's/[^ ]* //'`
+-	if [ -z "$path" ]; then
++	prio=`sed -ne "1!p" $ad/$name | sed -e "s/\(.*\) \(.*\)/\2 \1/g" | sort -nr | head -n 1 | sed 's/ [^ ]*$//'`
++	if [ -z "$prio" ]; then
+ 		echo "update-alternatives: removing $link as no more alternatives exist for it"
+ 		rm $ad/$name
+ 		if [ -L $link ]; then
+@@ -107,11 +107,19 @@
+ 		return 0
+ 	fi
+ 
++	## find last line with highest priority
++	path=`grep "${prio}$" $ad/$name | tail -n 1 | sed 's/ [^ ]*$//'`
++
+ 	if [ ! -e $link -o -L $link ]; then
+ 		local link_dir=`dirname $link`
+ 		if [ ! -d $link_dir ]; then
+ 			mkdir -p $link_dir
+ 		fi
++		if [ -h $link -a -d $link ]; then
++			# if $link exists and the target is directory, than ln -sf $path $link, doesn't replace link to that directory, but creates new link inside
++			echo "update-alternatives: Removing $link"
++			rm -f $link
++		fi
+ 		ln -sf $path $link
+ 		echo "update-alternatives: Linking $link to $path"
+ 	else
-- 
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