#!/bin/sh
##
## "dotest" is my stupid name for my patch-application script, which
## I never got around to renaming after I tested it. We're now on the
## second generation of scripts, still called "dotest".
##
## Update: Ryan Anderson finally shamed me into naming this "applymbox".
##
## You give it a mbox-format collection of emails, and it will try to
## apply them to the kernel using "applypatch"
##
## applymbox [ -c .dotest/msg-number ] [ -q ] mail_archive [Signoff_file]"
##
## The patch application may fail in the middle.  In which case:
## (1) look at .dotest/patch and fix it up to apply
## (2) re-run applymbox with -c .dotest/msg-number for the current one.
## Pay a special attention to the commit log message if you do this and
## use a Signoff_file, because applypatch wants to append the sign-off
## message to msg-clean every time it is run.

query_apply= continue= resume=t
while case "$#" in 0) break ;; esac
do
	case "$1" in
	-q)	query_apply=t ;;
	-c)	continue="$2"; resume=f; shift ;;
	-*)	usage ;;
	*)	break ;;
	esac
	shift
done

case "$continue" in
'')
	rm -rf .dotest
	mkdir .dotest
	mailsplit "$1" .dotest || exit 1
esac

case "$query_apply" in
t)	touch .dotest/.query_apply
esac

for i in .dotest/0*
do
	case "$resume,$continue" in
	f,$i)	resume=t;;
	f,*)	continue;;
	*)
		mailinfo .dotest/msg .dotest/patch <$i >.dotest/info || exit 1
		git-stripspace < .dotest/msg > .dotest/msg-clean
		;;
	esac
	applypatch .dotest/msg-clean .dotest/patch .dotest/info "$2"
	ret=$?
	if [ $ret -ne 0 ]; then
		# 2 is a special exit code from applypatch to indicate that
	    	# the patch wasn't applied, but continue anyway 
		[ $ret -ne 2 ] && exit $ret
	fi
done
# return to pristine
rm -fr .dotest