From: graham.gower <graham.gower@e8e0d7a0-c8d9-11dd-a880-a1081c7ac358>
Date: Thu, 3 Dec 2009 04:11:26 +0000 (+0000)
Subject: Two fixes from Martin Jansa <martin.jansa@gmail.com>.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a19597b2beb95ac615b515607dc56490586e6222;p=project%2Fopkg-lede.git

Two fixes from Martin Jansa <martin.jansa@gmail.com>.

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

git-svn-id: http://opkg.googlecode.com/svn/trunk@439 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358
---

diff --git a/utils/update-alternatives.in b/utils/update-alternatives.in
index a49cc09..34d89f1 100644
--- a/utils/update-alternatives.in
+++ b/utils/update-alternatives.in
@@ -95,10 +95,8 @@ find_best_alt() {
 
 	link=$OPKG_OFFLINE_ROOT/`head -n 1 $ad/$name`
 
-##	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 +105,21 @@ find_best_alt() {
 		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 a directory,
+			# 'ln -sf $path $link' doesn't replace the link to
+			# that directory, it 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