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git/git-cherry.sh
Junio C Hamano ae2b0f1518 git-sh-setup: die if outside git repository.
Now all the users of this script detect its exit status and die,
complaining that it is outside git repository.  So move the code
that dies from all callers to git-sh-setup script.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-25 13:49:17 -08:00

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#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano.
#
. git-sh-setup
usage="usage: $0 "'[-v] <upstream> [<head>]
__*__*__*__*__> <upstream>
/
fork-point
\__+__+__+__+__+__+__+__> <head>
Each commit between the fork-point and <head> is examined, and
compared against the change each commit between the fork-point and
<upstream> introduces. If the change seems to be in the upstream,
it is shown on the standard output with prefix "+". Otherwise
it is shown with prefix "-".
'
case "$1" in -v) verbose=t; shift ;; esac
case "$#,$1" in
1,*..*)
upstream=$(expr "$1" : '\(.*\)\.\.') ours=$(expr "$1" : '.*\.\.\(.*\)$')
set x "$upstream" "$ours"
shift ;;
esac
case "$#" in
1) upstream=`git-rev-parse --verify "$1"` &&
ours=`git-rev-parse --verify HEAD` || exit
;;
2) upstream=`git-rev-parse --verify "$1"` &&
ours=`git-rev-parse --verify "$2"` || exit
;;
*) echo >&2 "$usage"; exit 1 ;;
esac
# Note that these list commits in reverse order;
# not that the order in inup matters...
inup=`git-rev-list ^$ours $upstream` &&
ours=`git-rev-list $ours ^$upstream` || exit
tmp=.cherry-tmp$$
patch=$tmp-patch
mkdir $patch
trap "rm -rf $tmp-*" 0 1 2 3 15
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
for c in $inup
do
git-diff-tree -p $c
done | git-patch-id |
while read id name
do
echo $name >>$patch/$id
done
LF='
'
O=
for c in $ours
do
set x `git-diff-tree -p $c | git-patch-id`
if test "$2" != ""
then
if test -f "$patch/$2"
then
sign=-
else
sign=+
fi
case "$verbose" in
t)
c=$(git-rev-list --pretty=oneline --max-count=1 $c)
esac
case "$O" in
'') O="$sign $c" ;;
*) O="$sign $c$LF$O" ;;
esac
fi
done
case "$O" in
'') ;;
*) echo "$O" ;;
esac