From: Nico Schottelius <nico-linuxsetlocalversion@schottelius.org>
Date: Fri, 12 Jun 2009 07:59:52 +0000 (+0200)
Subject: kbuild: fix delay in setlocalversion on readonly source
X-Git-Tag: v2.6.31-rc1~335^2~9
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=a2bb90a08cb3b64dd815d762ffde2312582a6ec9;p=linux.git

kbuild: fix delay in setlocalversion on readonly source

Do not update index on read only media.
Idea published by Christian Kujau <lists@nerdbynature.de>.

Cc: Nico Schottelius <nico@ikn.schottelius.org>
Cc: Christian Kujau <lists@nerdbynature.de>
---

diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 00790472f641..46989b88d734 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -39,8 +39,10 @@ if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
 	        printf -- '-svn%s' "`git svn find-rev $head`"
 	fi
 
-	# Are there uncommitted changes?
-	git update-index --refresh --unmerged > /dev/null
+	# Update index only on r/w media
+	[ -w . ] && git update-index --refresh --unmerged > /dev/null
+
+	# Check for uncommitted changes
 	if git diff-index --name-only HEAD | grep -v "^scripts/package" \
 	    | read dummy; then
 		printf '%s' -dirty