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git/tools/git-applymbox
Linus Torvalds d571c2be99 [PATCH] git-applymbox: verify that index is clean
This makes git-applymbox verify that the index matches the current HEAD
before it starts applying patches.

Otherwise, you might have updated the index with unrelated changes, and
the first patch will commit not just the patch from the mbox, but also any
changes you had in your index.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-18 16:26:50 -07:00

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#!/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 [ -k ] [ -q ] (-c .dotest/msg-number | 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.
. git-sh-setup-script || die "Not a git archive"
keep_subject= query_apply= continue= resume=t
while case "$#" in 0) break ;; esac
do
case "$1" in
-k) keep_subject=-k ;;
-q) query_apply=t ;;
-c) continue="$2"; resume=f; shift ;;
-*) usage ;;
*) break ;;
esac
shift
done
case "$continue" in
'')
rm -rf .dotest
mkdir .dotest
git-mailsplit "$1" .dotest || exit 1
shift
esac
files=$(git-diff-cache --cached --name-only HEAD) || exit
if [ "$files" ]; then
echo "Dirty index: cannot apply patches (dirty: $files)" >&2
exit 1
fi
case "$query_apply" in
t) touch .dotest/.query_apply
esac
case "$keep_subject" in
-k) : >.dotest/.keep_subject
esac
signoff="$1"
set x .dotest/0*
shift
while case "$#" in 0) break;; esac
do
i="$1"
case "$resume,$continue" in
f,$i) resume=t;;
f,*) continue;;
*)
git-mailinfo $keep_subject \
.dotest/msg .dotest/patch <$i >.dotest/info || exit 1
git-stripspace < .dotest/msg > .dotest/msg-clean
;;
esac
while :; # for fixing up and retry
do
git-applypatch .dotest/msg-clean .dotest/patch .dotest/info "$signoff"
case "$?" in
0 | 2 )
# 2 is a special exit code from applypatch to indicate that
# the patch wasn't applied, but continue anyway
;;
*)
ret=$?
if test -f .dotest/.query_apply
then
echo >&2 "* Patch failed."
echo >&2 "* You could fix it up in your editor and"
echo >&2 " retry. If you want to do so, say yes here"
echo >&2 " AFTER fixing .dotest/patch up."
echo >&2 -n "Retry [y/N]? "
read yesno
case "$yesno" in
[Yy]*)
continue ;;
esac
fi
exit $ret
esac
break
done
shift
done
# return to pristine
rm -fr .dotest