git/git-clone.sh
Junio C Hamano 215a7ad1ef Big tool rename.
As promised, this is the "big tool rename" patch.  The primary differences
since 0.99.6 are:

  (1) git-*-script are no more.  The commands installed do not
      have any such suffix so users do not have to remember if
      something is implemented as a shell script or not.

  (2) Many command names with 'cache' in them are renamed with
      'index' if that is what they mean.

There are backward compatibility symblic links so that you and
Porcelains can keep using the old names, but the backward
compatibility support  is expected to be removed in the near
future.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-07 17:45:20 -07:00

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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 "$1" && (cd .git ; pwd)) 2> /dev/null
}
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
curl_extra_args="-k"
fi
http_fetch () {
# $1 = Remote, $2 = Local
curl -nsf $curl_extra_args "$1" >"$2"
}
clone_dumb_http () {
# $1 - remote, $2 - local
cd "$2" &&
clone_tmp='.git/clone-tmp' &&
mkdir -p "$clone_tmp" || exit 1
http_fetch "$1/info/refs" "$clone_tmp/refs" &&
http_fetch "$1/objects/info/packs" "$clone_tmp/packs" || {
echo >&2 "Cannot get remote repository information.
Perhaps git-update-server-info needs to be run there?"
exit 1;
}
while read type name
do
case "$type" in
P) ;;
*) continue ;;
esac &&
idx=`expr "$name" : '\(.*\)\.pack'`.idx
http_fetch "$1/objects/pack/$name" ".git/objects/pack/$name" &&
http_fetch "$1/objects/pack/$idx" ".git/objects/pack/$idx" &&
git-verify-pack ".git/objects/pack/$idx" || exit 1
done <"$clone_tmp/packs"
while read sha1 refname
do
name=`expr "$refname" : 'refs/\(.*\)'` &&
git-http-fetch -v -a -w "$name" "$name" "$1/" || exit 1
done <"$clone_tmp/refs"
rm -fr "$clone_tmp"
}
quiet=
use_local=no
local_shared=no
upload_pack=
while
case "$#,$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/" "$D/.git/refs/"
;;
http://*)
clone_dumb_http "$repo" "$D"
;;
*)
cd "$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/remotes/" &&
rm -f "$D/.git/remotes/origin" &&
echo >"$D/.git/remotes/origin" \
"URL: $repo
Pull: master:origin"