[PATCH] scripts/setlocalversion on readonly source

[Christian Kujau <lists@nerdbynature.de>]

Hi,

I'm building kernels with O=/some/dir and at some point 
scripts/setlocalversion is being called, doing:

  + git update-index --refresh --unmerged
  fatal: Unable to create '.git/index.lock': Read-only file system

Not only does it throw this error but it takes quite a long time to run, 
only to fail anyway because the kernel source dir is located on a 
read-only NFS mount.

The following patch makes the error go away:

--- linux-2.6-git/scripts/setlocalversion	2009-05-29 07:14:34.746191990 +0200
+++ /home/dummy/tmp/scripts/setlocalversion.edited	2009-06-09 22:20:29.000000000 +0200
@@ -39,8 +39,8 @@
 	        printf -- '-svn%s' "`git svn find-rev $head`"
 	fi
 
-	# Are there uncommitted changes?
-	git update-index --refresh --unmerged > /dev/null
+	# Are there uncommitted changes? (and can we update the repo?)
+	touch . 2>/dev/null && git update-index --refresh --unmerged > /dev/null
 	if git diff-index --name-only HEAD | grep -v "^scripts/package" \
 	    | read dummy; then
 		printf '%s' -dirty


Thanks,
Christian.
-- 
BOFH excuse #426:

internet is needed to catch the etherbunny