kbuild: fix scripts/setlocalversion to avoid erroneous -dirty tag
If git's index file is out of date, and some files have been touched
such that their timestamp doesn't what is in the index, "git
diff-index HEAD" may show that a particular file is dirty, when in
fact it really isn't. Running "git update-index" will update the
index to avoid these false positives.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 1b31da8..acce8eb 100644
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -16,6 +16,7 @@
fi
# Are there uncommitted changes?
+ git update-index --refresh --unmerged > /dev/null
if git diff-index HEAD | read dummy; then
printf '%s' -dirty
fi