summaryrefslogtreecommitdiff
path: root/git-clone-script
blob: 4f80ade21cdd1ff82ddc2d3b9ba730a45952bc66 (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
#!/bin/sh
#
# Copyright (c) 2005, Linus Torvalds
# Copyright (c) 2005, Junio C Hamano
# 
# Clone a repository into a different directory that does not yet exist.
 
usage() {
	echo >&2 "* git clone [-l] <repo> <dir>"
	exit 1
}
 
use_local=no
while
	case "$#,$1" in
	0,*) break ;;
        *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;;
	*,-*) usage ;;
	*) break ;;
	esac
do
	shift
done
 
repo="$1"
dir="$2"
mkdir "$dir" &&
D=$(
	(cd "$dir" && git-init-db && pwd)
) &&
test -d "$D" || usage
 
# We do local magic only when the user tells us to.
case "$use_local" in
yes)
	( cd "$repo/objects" ) || {
		repo="$repo/.git"
		( cd "$repo/objects" ) || {
		    echo >&2 "-l flag seen but $repo is not local."
		    exit 1
		}
	}
 
	# See if we can hardlink and drop "l" if not.
	sample_file=$(cd "$repo" && \
		      find objects -type f -print | sed -e 1q)
 
	# objects directory should not be empty since we are cloning!
	test -f "$repo/$sample_file" || exit
 
	l=
	if ln "$repo/$sample_file" "$D/.git/objects/sample" 2>/dev/null
	then
		l=l
	fi &&
	rm -f "$D/.git/objects/sample" &&
	cp -r$l "$repo/objects" "$D/.git/" || exit 1
 
	# Make a duplicate of refs and HEAD pointer
	HEAD=
	if test -f "$repo/HEAD"
	then
		HEAD=HEAD
	fi
	tar Ccf "$repo" - refs $HEAD | tar Cxf "$D/.git" - || exit 1
	exit 0
	;;
esac
 
cd "$D" && git clone-pack "$repo"