x-by

#!/bin/bash
#
# Add *-by for specific commit, used for cherry-picked
# tb - Tested-by
# rob - Reviewed-by
# sob - Signed-off-by
# ack - Acked-by

if [ "$#" -gt 3 ]; then
        echo "Usage: x by <tb|rob|sob|ack> <name> <commit sha1>"
        exit 1
fi

. $HOME/.x-tools

export DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
. $DIR/common

BY_TAG=""
if [ "$#" -gt 0 ]; then
	if [ "$1" == "tb" ]; then
		BY_TAG="Tested-by"
	fi
	if [ "$1" == "rob" ]; then
		BY_TAG="Reviewed-by"
	fi
	if [ "$1" == "sob" ]; then
		BY_TAG="Signed-off-by"
	fi
	if [ "$1" == "ack" ]; then
		BY_TAG="Acked-by"
	fi
	if [ "$1" == "rep" ]; then
		BY_TAG="Reported-by"
	fi
fi

if [ r"$BY_TAG" == r"" ]; then
	echo "Please provide type of -by"
	echo "  tb - Tested-by"
	echo "  rob - Reviewed-by"
	echo "  sob - Signed-off-by"
	echo "  ack - Acked-by"
	echo "  rep - Reported-by"
	exit
fi

if [ "$#" -gt 1 ]; then
	if [ $(grep -c "alias $2" $MUTTAL ) -eq 0 ]; then
		echo "There is no such name in $MUTTAL"
		exit
	fi
	BY="$BY_TAG: $(grep -m 1 "alias $2" $MUTTAL | cut -d' ' -f 3-)"
else
	echo "Please provide name for $BY_TAG"
	echo "The data is taken from $MUTTAL"
	exit
fi

if [ "$#" -gt 2 ]; then
	IN=$3
else
	IN="HEAD"
fi

PREV=$IN^1

set -e
PRTMP=$(mktemp -d)
git format-patch -M -C --no-cover-letter --no-signoff -o $PRTMP/ $PREV

sed -i -e '/^Issue:[ 0-9]*/Id' -e '/^Change-id:[ 0-9]*/Id' $PRTMP/0001-*
tac $PRTMP/0001-* > $PRTMP/tac.tmp
sed -i "0,/Signed-off-by: /s//$BY\nSigned-off-by: /" $PRTMP/tac.tmp
tac $PRTMP/tac.tmp > $PRTMP/0001-*

git reset --hard $PREV
git am --signoff $PRTMP/0001-*

rm -rf $PRTMP