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|
#!/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 [-s]] [-q] [-u <upload-pack>] <repo> <dir>"
exit 1
}
get_repo_base() {
(cd "$1" && (cd .git ; pwd)) 2> /dev/null
}
quiet=
use_local=no
local_shared=no
upload_pack=
while
case "$#,$1" in
0,*) break ;;
*,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;;
*,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared)
local_shared=yes ;;
*,-q|*,--quiet) quiet=-q ;;
1,-u|1,--upload-pack) usage ;;
*,-u|*,--upload-pack)
shift
upload_pack="--exec=$1" ;;
*,-*) usage ;;
*) break ;;
esac
do
shift
done
# Turn the source into an absolute path if
# it is local
repo="$1"
local=no
if base=$(get_repo_base "$repo"); then
repo="$base"
local=yes
fi
dir="$2"
mkdir "$dir" &&
D=$(
(cd "$dir" && git-init-db && pwd)
) &&
test -d "$D" || usage
# We do local magic only when the user tells us to.
case "$local,$use_local" in
yes,yes)
( cd "$repo/objects" ) || {
echo >&2 "-l flag seen but $repo is not local."
exit 1
}
case "$local_shared" in
no)
# 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" &&
cd "$repo" &&
find objects -type f -print |
cpio -puamd$l "$D/.git/" || exit 1
;;
yes)
mkdir -p "$D/.git/objects/info"
{
test -f "$repo/objects/info/alternates" &&
cat "$repo/objects/info/alternates";
echo "$repo/objects"
} >"$D/.git/objects/info/alternates"
;;
esac
# 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
;;
*)
case "$repo" in
rsync://*)
rsync $quiet -avz --ignore-existing "$repo/objects/" "$D/.git/objects/" &&
rsync $quiet -avz --ignore-existing "$repo/refs/" "$D/.git/refs/"
;;
http://*)
git-clone-dumb-http "$repo" "$D"
case "$?" in
2)
echo "Somebody should define smarter http server protocol" >&2
exit 1
;;
0)
;;
*)
exit
esac
;;
*)
cd "$D" && case "$upload_pack" in
'') git-clone-pack $quiet "$repo" ;;
*) git-clone-pack $quiet "$upload_pack" "$repo" ;;
esac
;;
esac
;;
esac
# Update origin.
mkdir -p "$D/.git/branches/" &&
rm -f "$D/.git/branches/origin" &&
echo "$repo" >"$D/.git/branches/origin"
|
