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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.
# See git-sh-setup why.
unset CDPATH
OPTIONS_SPEC="\
git-clone [options] [--] <repo> [<dir>]
--
n,no-checkout don't create a checkout
bare create a bare repository
naked create a bare repository
l,local to clone from a local repository
no-hardlinks don't use local hardlinks, always copy
s,shared setup as a shared repository
template= path to the template directory
q,quiet be quiet
reference= reference repository
o,origin= use <name> instead of 'origin' to track upstream
u,upload-pack= path to git-upload-pack on the remote
depth= create a shallow clone of that depth
use-separate-remote compatibility, do not use
no-separate-remote compatibility, do not use"
die() {
echo >&2 "$@"
exit 1
}
usage() {
exec "$0" -h
}
eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)"
get_repo_base() {
(
cd "`/bin/pwd`" &&
cd "$1" || cd "$1.git" &&
{
cd .git
pwd
}
) 2>/dev/null
}
if [ -n "$GIT_SSL_NO_VERIFY" -o \
"`git config --bool http.sslVerify`" = false ]; then
curl_extra_args="-k"
fi
http_fetch () {
# $1 = Remote, $2 = Local
curl -nsfL $curl_extra_args "$1" >"$2"
curl_exit_status=$?
case $curl_exit_status in
126|127) exit ;;
*) return $curl_exit_status ;;
esac
}
clone_dumb_http () {
# $1 - remote, $2 - local
cd "$2" &&
clone_tmp="$GIT_DIR/clone-tmp" &&
mkdir -p "$clone_tmp" || exit 1
if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \
"`git config --bool http.noEPSV`" = true ]; then
curl_extra_args="${curl_extra_args} --disable-epsv"
fi
http_fetch "$1/info/refs" "$clone_tmp/refs" ||
die "Cannot get remote repository information.
Perhaps git-update-server-info needs to be run there?"
test "z$quiet" = z && v=-v || v=
while read sha1 refname
do
name=`expr "z$refname" : 'zrefs/\(.*\)'` &&
case "$name" in
*^*) continue;;
esac
case "$bare,$name" in
yes,* | ,heads/* | ,tags/*) ;;
*) continue ;;
esac
if test -n "$use_separate_remote" &&
branch_name=`expr "z$name" : 'zheads/\(.*\)'`
then
tname="remotes/$origin/$branch_name"
else
tname=$name
fi
git-http-fetch $v -a -w "$tname" "$sha1" "$1" || exit 1
done <"$clone_tmp/refs"
rm -fr "$clone_tmp"
http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" ||
rm -f "$GIT_DIR/REMOTE_HEAD"
if test -f "$GIT_DIR/REMOTE_HEAD"; then
head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
case "$head_sha1" in
'ref: refs/'*)
;;
*)
git-http-fetch $v -a "$head_sha1" "$1" ||
rm -f "$GIT_DIR/REMOTE_HEAD"
;;
esac
fi
}
quiet=
local=no
use_local_hardlink=yes
local_shared=no
unset template
no_checkout=
upload_pack=
bare=
reference=
origin=
origin_override=
use_separate_remote=t
depth=
no_progress=
local_explicitly_asked_for=
test -t 1 || no_progress=--no-progress
while test $# != 0
do
case "$1" in
-n|--no-checkout)
no_checkout=yes ;;
--naked|--bare)
bare=yes ;;
-l|--local)
local_explicitly_asked_for=yes
use_local_hardlink=yes
;;
--no-hardlinks)
use_local_hardlink=no ;;
-s|--shared)
local_shared=yes ;;
--template)
shift; template="--template=$1" ;;
-q|--quiet)
quiet=-q ;;
--use-separate-remote|--no-separate-remote)
die "clones are always made with separate-remote layout" ;;
--reference)
shift; reference="$1" ;;
-o|--origin)
shift;
case "$1" in
'')
usage ;;
*/*)
die "'$1' is not suitable for an origin name"
esac
git check-ref-format "heads/$1" ||
die "'$1' is not suitable for a branch name"
test -z "$origin_override" ||
die "Do not give more than one --origin options."
origin_override=yes
origin="$1"
;;
-u|--upload-pack)
shift
upload_pack="--upload-pack=$1" ;;
--depth)
shift
depth="--depth=$1" ;;
--)
shift
break ;;
*)
usage ;;
esac
shift
done
repo="$1"
test -n "$repo" ||
die 'you must specify a repository to clone.'
# --bare implies --no-checkout and --no-separate-remote
if test yes = "$bare"
then
if test yes = "$origin_override"
then
die '--bare and --origin $origin options are incompatible.'
fi
no_checkout=yes
use_separate_remote=
fi
if test -z "$origin"
then
origin=origin
fi
# Turn the source into an absolute path if
# it is local
if base=$(get_repo_base "$repo"); then
repo="$base"
if test -z "$depth"
then
local=yes
fi
elif test -f "$repo"
then
case "$repo" in /*) ;; *) repo="$PWD/$repo" ;; esac
fi
# Decide the directory name of the new repository
if test -n "$2"
then
dir="$2"
test $# = 2 || die "excess parameter to git-clone"
else
# Derive one from the repository name
# Try using "humanish" part of source repo if user didn't specify one
if test -f "$repo"
then
# Cloning from a bundle
dir=$(echo "$repo" | sed -e 's|/*\.bundle$||' -e 's|.*/||g')
else
dir=$(echo "$repo" |
sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
fi
fi
[ -e "$dir" ] && die "destination directory '$dir' already exists."
[ yes = "$bare" ] && unset GIT_WORK_TREE
[ -n "$GIT_WORK_TREE" ] && [ -e "$GIT_WORK_TREE" ] &&
die "working tree '$GIT_WORK_TREE' already exists."
D=
W=
cleanup() {
test -z "$D" && rm -rf "$dir"
test -z "$W" && test -n "$GIT_WORK_TREE" && rm -rf "$GIT_WORK_TREE"
cd ..
test -n "$D" && rm -rf "$D"
test -n "$W" && rm -rf "$W"
exit $err
}
trap 'err=$?; cleanup' 0
mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage
test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" &&
W=$(cd "$GIT_WORK_TREE" && pwd) && GIT_WORK_TREE="$W" && export GIT_WORK_TREE
if test yes = "$bare" || test -n "$GIT_WORK_TREE"; then
GIT_DIR="$D"
else
GIT_DIR="$D/.git"
fi &&
export GIT_DIR &&
GIT_CONFIG="$GIT_DIR/config" git-init $quiet ${template+"$template"} || usage
if test -n "$bare"
then
GIT_CONFIG="$GIT_DIR/config" git config core.bare true
fi
if test -n "$reference"
then
ref_git=
if test -d "$reference"
then
if test -d "$reference/.git/objects"
then
ref_git="$reference/.git"
elif test -d "$reference/objects"
then
ref_git="$reference"
fi
fi
if test -n "$ref_git"
then
ref_git=$(cd "$ref_git" && pwd)
echo "$ref_git/objects" >"$GIT_DIR/objects/info/alternates"
(
GIT_DIR="$ref_git" git for-each-ref \
--format='%(objectname) %(*objectname)'
) |
while read a b
do
test -z "$a" ||
git update-ref "refs/reference-tmp/$a" "$a"
test -z "$b" ||
git update-ref "refs/reference-tmp/$b" "$b"
done
else
die "reference repository '$reference' is not a local directory."
fi
fi
rm -f "$GIT_DIR/CLONE_HEAD"
# We do local magic only when the user tells us to.
case "$local" in
yes)
( cd "$repo/objects" ) ||
die "cannot chdir to local '$repo/objects'."
if test "$local_shared" = yes
then
mkdir -p "$GIT_DIR/objects/info"
echo "$repo/objects" >>"$GIT_DIR/objects/info/alternates"
else
cpio_quiet_flag=""
cpio --help 2>&1 | grep -- --quiet >/dev/null && \
cpio_quiet_flag=--quiet
l= &&
if test "$use_local_hardlink" = yes
then
# 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 because
# we are cloning!
test -f "$repo/$sample_file" ||
die "fatal: cannot clone empty repository"
if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null
then
rm -f "$GIT_DIR/objects/sample"
l=l
elif test -n "$local_explicitly_asked_for"
then
echo >&2 "Warning: -l asked but cannot hardlink to $repo"
fi
fi &&
cd "$repo" &&
# Create dirs using umask and permissions and destination
find objects -type d -print | (cd "$GIT_DIR" && xargs mkdir -p) &&
# Copy existing 0444 permissions on content
find objects ! -type d -print | cpio $cpio_quiet_flag -pumd$l "$GIT_DIR/" || \
exit 1
fi
git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
;;
*)
case "$repo" in
rsync://*)
case "$depth" in
"") ;;
*) die "shallow over rsync not supported" ;;
esac
rsync $quiet -av --ignore-existing \
--exclude info "$repo/objects/" "$GIT_DIR/objects/" ||
exit
# Look at objects/info/alternates for rsync -- http will
# support it natively and git native ones will do it on the
# remote end. Not having that file is not a crime.
rsync -q "$repo/objects/info/alternates" \
"$GIT_DIR/TMP_ALT" 2>/dev/null ||
rm -f "$GIT_DIR/TMP_ALT"
if test -f "$GIT_DIR/TMP_ALT"
then
( cd "$D" &&
. git-parse-remote &&
resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) |
while read alt
do
case "$alt" in 'bad alternate: '*) die "$alt";; esac
case "$quiet" in
'') echo >&2 "Getting alternate: $alt" ;;
esac
rsync $quiet -av --ignore-existing \
--exclude info "$alt" "$GIT_DIR/objects" || exit
done
rm -f "$GIT_DIR/TMP_ALT"
fi
git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
;;
https://*|http://*|ftp://*)
case "$depth" in
"") ;;
*) die "shallow over http or ftp not supported" ;;
esac
if test -z "@@NO_CURL@@"
then
clone_dumb_http "$repo" "$D"
else
die "http transport not supported, rebuild Git with curl support"
fi
;;
*)
if [ -f "$repo" ] ; then
git bundle unbundle "$repo" > "$GIT_DIR/CLONE_HEAD" ||
die "unbundle from '$repo' failed."
else
case "$upload_pack" in
'') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";;
*) git-fetch-pack --all -k \
$quiet "$upload_pack" $depth $no_progress "$repo" ;;
esac >"$GIT_DIR/CLONE_HEAD" ||
die "fetch-pack from '$repo' failed."
fi
;;
esac
;;
esac
test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp"
if test -f "$GIT_DIR/CLONE_HEAD"
then
# Read git-fetch-pack -k output and store the remote branches.
if [ -n "$use_separate_remote" ]
then
branch_top="remotes/$origin"
else
branch_top="heads"
fi
tag_top="tags"
while read sha1 name
do
case "$name" in
*'^{}')
continue ;;
HEAD)
destname="REMOTE_HEAD" ;;
refs/heads/*)
destname="refs/$branch_top/${name#refs/heads/}" ;;
refs/tags/*)
destname="refs/$tag_top/${name#refs/tags/}" ;;
*)
continue ;;
esac
git update-ref -m "clone: from $repo" "$destname" "$sha1" ""
done < "$GIT_DIR/CLONE_HEAD"
fi
if test -n "$W"; then
cd "$W" || exit
else
cd "$D" || exit
fi
if test -z "$bare"
then
# a non-bare repository is always in separate-remote layout
remote_top="refs/remotes/$origin"
head_sha1=
test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
case "$head_sha1" in
'ref: refs/'*)
# Uh-oh, the remote told us (http transport done against
# new style repository with a symref HEAD).
# Ideally we should skip the guesswork but for now
# opt for minimum change.
head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'`
head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"`
;;
esac
# The name under $remote_top the remote HEAD seems to point at.
head_points_at=$(
(
test -f "$GIT_DIR/$remote_top/master" && echo "master"
cd "$GIT_DIR/$remote_top" &&
find . -type f -print | sed -e 's/^\.\///'
) | (
done=f
while read name
do
test t = $done && continue
branch_tip=`cat "$GIT_DIR/$remote_top/$name"`
if test "$head_sha1" = "$branch_tip"
then
echo "$name"
done=t
fi
done
)
)
# Upstream URL
git config remote."$origin".url "$repo" &&
# Set up the mappings to track the remote branches.
git config remote."$origin".fetch \
"+refs/heads/*:$remote_top/*" '^$' &&
# Write out remote.$origin config, and update our "$head_points_at".
case "$head_points_at" in
?*)
# Local default branch
git symbolic-ref HEAD "refs/heads/$head_points_at" &&
# Tracking branch for the primary branch at the remote.
git update-ref HEAD "$head_sha1" &&
rm -f "refs/remotes/$origin/HEAD"
git symbolic-ref "refs/remotes/$origin/HEAD" \
"refs/remotes/$origin/$head_points_at" &&
git config branch."$head_points_at".remote "$origin" &&
git config branch."$head_points_at".merge "refs/heads/$head_points_at"
;;
'')
if test -z "$head_sha1"
then
# Source had nonexistent ref in HEAD
echo >&2 "Warning: Remote HEAD refers to nonexistent ref, unable to checkout."
no_checkout=t
else
# Source had detached HEAD pointing nowhere
git update-ref --no-deref HEAD "$head_sha1" &&
rm -f "refs/remotes/$origin/HEAD"
fi
;;
esac
case "$no_checkout" in
'')
test "z$quiet" = z -a "z$no_progress" = z && v=-v || v=
git read-tree -m -u $v HEAD HEAD
esac
fi
rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD"
trap - 0
| .. | |||||
| README | |||||
| builtin-fetch--tool.c | |||||
| git-checkout.sh | |||||
| git-clean.sh | |||||
| git-clone.sh | |||||
| git-commit.sh | |||||
| git-fetch.sh | |||||
| git-gc.sh | |||||
| git-ls-remote.sh | |||||
| git-merge-ours.sh | |||||
| git-merge.sh | |||||
| git-notes.sh | |||||
| git-remote.perl | |||||
| git-rerere.perl | |||||
| git-reset.sh | |||||
| git-resolve.sh | |||||
| git-revert.sh | |||||
| git-svnimport.perl | |||||
| git-svnimport.txt | |||||
| git-tag.sh | |||||
| git-verify-tag.sh |