]> git.ipfire.org Git - thirdparty/git.git/blame - git-cherry
[PATCH] Build commands through object files
[thirdparty/git.git] / git-cherry
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1#!/bin/sh
2#
3# Copyright (c) 2005 Junio C Hamano.
4#
5
6usage="usage: $0 "'<upstream> [<head>]
7
8 __*__*__*__*__> <upstream>
9 /
10 fork-point
11 \__+__+__+__+__+__+__+__> <head>
12
13Each commit between the fork-point and <head> is examined, and
14compared against the change each commit between the fork-point and
15<upstream> introduces. If the change does not seem to be in the
16upstream, it is shown on the standard output.
17
18The output is intended to be used as:
19
20 OLD_HEAD=$(git-rev-parse HEAD)
21 git-rev-parse linus >${GIT_DIR-.}/HEAD
22 git-cherry linus OLD_HEAD |
23 while read commit
24 do
25 GIT_EXTERNAL_DIFF=git-apply-patch-script git-diff-tree -p "$commit" &&
26 git-commit-script -m "$commit"
27 done
28'
29
30case "$#" in
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311) linus=`git-rev-parse --verify "$1"` &&
32 junio=`git-rev-parse --verify HEAD` || exit
93c36dcd 33 ;;
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342) linus=`git-rev-parse --verify "$1"` &&
35 junio=`git-rev-parse --verify "$2"` || exit
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36 ;;
37*) echo >&2 "$usage"; exit 1 ;;
38esac
39
40# Note that these list commits in reverse order;
41# not that the order in inup matters...
42inup=`git-rev-list ^$junio $linus` &&
43ours=`git-rev-list $junio ^$linus` || exit
44
45tmp=.cherry-tmp$$
46patch=$tmp-patch
47mkdir $patch
48trap "rm -rf $tmp-*" 0 1 2 3 15
49
50_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
51_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
52
53for c in $inup
54do
55 git-diff-tree -p $c
56done | git-patch-id |
57while read id name
58do
59 echo $name >>$patch/$id
60done
61
62LF='
63'
64
65O=
66for c in $ours
67do
68 set x `git-diff-tree -p $c | git-patch-id`
69 if test "$2" != ""
70 then
71 if test -f "$patch/$2"
72 then
73 sign=-
74 else
75 sign=+
76 fi
77 case "$O" in
78 '') O="$sign $c" ;;
79 *) O="$sign $c$LF$O" ;;
80 esac
81 fi
82done
83case "$O" in
84'') ;;
85*) echo "$O" ;;
86esac