blob: 74bfc16744d69d8394f89b6f77d81697a8336032 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
# Fetch one or more remote refs and merge it/them into the current HEAD.
USAGE='[-n | --no-summary] [--no-commit] [-s strategy]... [<fetch-options>] <repo> <head>...'
LONG_USAGE='Fetch one or more remote refs and merge it/them into the current HEAD.'
SUBDIRECTORY_OK=Yes
. git-sh-setup
set_reflog_action "pull $*"
require_work_tree
cd_to_toplevel
test -z "$(git ls-files -u)" ||
die "You are in the middle of a conflicted merge."
strategy_args= no_summary= no_commit= squash=
while :
do
case "$1" in
-n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\
--no-summa|--no-summar|--no-summary)
no_summary=-n ;;
--summary)
no_summary=$1
;;
--no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit)
no_commit=--no-commit ;;
--sq|--squ|--squa|--squas|--squash)
squash=--squash ;;
-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
--strateg=*|--strategy=*|\
-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
case "$#,$1" in
*,*=*)
strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
1,*)
usage ;;
*)
strategy="$2"
shift ;;
esac
strategy_args="${strategy_args}-s $strategy "
;;
-h|--h|--he|--hel|--help)
usage
;;
*)
# Pass thru anything that may be meant for fetch.
break
;;
esac
shift
done
orig_head=$(git rev-parse --verify HEAD 2>/dev/null)
git-fetch --update-head-ok "$@" || exit 1
curr_head=$(git rev-parse --verify HEAD 2>/dev/null)
if test "$curr_head" != "$orig_head"
then
# The fetch involved updating the current branch.
# The working tree and the index file is still based on the
# $orig_head commit, but we are merging into $curr_head.
# First update the working tree to match $curr_head.
echo >&2 "Warning: fetch updated the current branch head."
echo >&2 "Warning: fast forwarding your working tree from"
echo >&2 "Warning: commit $orig_head."
git update-index --refresh 2>/dev/null
git read-tree -u -m "$orig_head" "$curr_head" ||
die 'Cannot fast-forward your working tree.
After making sure that you saved anything precious from
$ git diff '$orig_head'
output, run
$ git reset --hard
to recover.'
fi
merge_head=$(sed -e '/ not-for-merge /d' \
-e 's/ .*//' "$GIT_DIR"/FETCH_HEAD | \
tr '\012' ' ')
case "$merge_head" in
'')
curr_branch=$(git symbolic-ref -q HEAD)
case $? in
0) ;;
1) echo >&2 "You are not currently on a branch; you must explicitly"
echo >&2 "specify which branch you wish to merge:"
echo >&2 " git pull <remote> <branch>"
exit 1;;
*) exit $?;;
esac
curr_branch=${curr_branch#refs/heads/}
echo >&2 "You asked me to pull without telling me which branch you"
echo >&2 "want to merge with, and 'branch.${curr_branch}.merge' in"
echo >&2 "your configuration file does not tell me either. Please"
echo >&2 "name which branch you want to merge on the command line and"
echo >&2 "try again (e.g. 'git pull <repository> <refspec>')."
echo >&2 "See git-pull(1) for details on the refspec."
echo >&2
echo >&2 "If you often merge with the same branch, you may want to"
echo >&2 "configure the following variables in your configuration"
echo >&2 "file:"
echo >&2
echo >&2 " branch.${curr_branch}.remote = <nickname>"
echo >&2 " branch.${curr_branch}.merge = <remote-ref>"
echo >&2 " remote.<nickname>.url = <url>"
echo >&2 " remote.<nickname>.fetch = <refspec>"
echo >&2
echo >&2 "See git-config(1) for details."
exit 1
;;
?*' '?*)
if test -z "$orig_head"
then
echo >&2 "Cannot merge multiple branches into empty head"
exit 1
fi
;;
esac
if test -z "$orig_head"
then
git update-ref -m "initial pull" HEAD $merge_head "" &&
git read-tree --reset -u HEAD || exit 1
exit
fi
merge_name=$(git fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") || exit
exec git-merge $no_summary $no_commit $squash $strategy_args \
"$merge_name" HEAD $merge_head
|
