[PATCH 6/5] libxfs-apply: add Signed-off-by:

[Eric Sandeen <sandeen@sandeen.net>]

Technically when a maintainer moves a patch from another project,
they should add their Signed-off-by: tag.  Pick up SOB info
from git-config, and add an option to override that value if
desired.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
--

diff --git a/tools/libxfs-apply b/tools/libxfs-apply
index e7d7e0a..2957fa0 100755
--- a/tools/libxfs-apply
+++ b/tools/libxfs-apply
@@ -8,7 +8,7 @@ usage()
 	echo $*
 	echo
 	echo "Usage:"
-	echo "	libxfs-apply [--verbose] --source <repodir> --commit <commit_id>"
+	echo "	libxfs-apply [--verbose] [--sob <name/email>] --source <repodir> --commit <commit_id>"
 	echo "	libxfs-apply --patch <patchfile>"
 	echo
 	echo "libxfs-apply should be run in the destination git repository."
@@ -73,6 +73,7 @@ while [ $# -gt 0 ]; do
 	--source)	REPO=$2 ; shift ;;
 	--patch)	PATCH=$2; shift ;;
 	--commit)	COMMIT_ID=$2 ; shift ;;
+	--sob)		SIGNED_OFF_BY=$2 ; shift ;;
 	--verbose)	VERBOSE=true ;;
 	*)		usage ;;
 	esac
@@ -274,6 +275,20 @@ fixup_header_format()
 			print $0
 		}' > $_hdr.new
 
+	# Remove the last line if it contains only whitespace
+	sed -i '${/^ *$/d;}' $_hdr.new
+
+	# Add Signed-off-by: header if specified
+	if [ ! -z ${SIGNED_OFF_BY+x} ]; then 
+		echo "Signed-off-by: $SIGNED_OFF_BY" >> $_hdr.new
+	else	# get it from git config if present
+		SOB_NAME=`git config --get user.name`
+		SOB_EMAIL=`git config --get user.email`
+		if [ ! -z ${SOB_NAME+x} ]; then
+			echo "Signed-off-by: $SOB_NAME <$SOB_EMAIL>" >> $_hdr.new
+		fi
+	fi
+
 	# now output the new patch
 	cat $_hdr.new $_diff