#
# 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() {
- die "Usage: $0 [--template=<template_directory>] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [--depth <n>] [-n] <repo> [<dir>]"
+ exec "$0" -h
}
+eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)"
+
get_repo_base() {
- (cd "$1" && (cd .git ; pwd)) 2> /dev/null
+ (
+ cd "`/bin/pwd`" &&
+ cd "$1" || cd "$1.git" &&
+ {
+ cd .git
+ pwd
+ }
+ ) 2>/dev/null
}
-if [ -n "$GIT_SSL_NO_VERIFY" ]; then
+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 $curl_exit_status ;;
+ esac
}
clone_dumb_http () {
clone_tmp="$GIT_DIR/clone-tmp" &&
mkdir -p "$clone_tmp" || exit 1
if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \
- "`git-repo-config --bool http.noEPSV`" = true ]; then
+ "`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/\(.*\)'` &&
else
tname=$name
fi
- git-http-fetch -v -a -w "$tname" "$name" "$1/" || exit 1
+ 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
}
-# Read git-fetch-pack -k output and store the remote branches.
-copy_refs='
-use File::Path qw(mkpath);
-use File::Basename qw(dirname);
-my $git_dir = $ARGV[0];
-my $use_separate_remote = $ARGV[1];
-my $origin = $ARGV[2];
-
-my $branch_top = ($use_separate_remote ? "remotes/$origin" : "heads");
-my $tag_top = "tags";
-
-sub store {
- my ($sha1, $name, $top) = @_;
- $name = "$git_dir/refs/$top/$name";
- mkpath(dirname($name));
- open O, ">", "$name";
- print O "$sha1\n";
- close O;
-}
-
-open FH, "<", "$git_dir/CLONE_HEAD";
-while (<FH>) {
- my ($sha1, $name) = /^([0-9a-f]{40})\s(.*)$/;
- next if ($name =~ /\^\173/);
- if ($name eq "HEAD") {
- open O, ">", "$git_dir/REMOTE_HEAD";
- print O "$sha1\n";
- close O;
- next;
- }
- if ($name =~ s/^refs\/heads\///) {
- store($sha1, $name, $branch_top);
- next;
- }
- if ($name =~ s/^refs\/tags\///) {
- store($sha1, $name, $tag_top);
- next;
- }
-}
-close FH;
-'
-
quiet=
local=no
-use_local=no
+use_local_hardlink=yes
local_shared=no
unset template
no_checkout=
origin_override=
use_separate_remote=t
depth=
-while
- case "$#,$1" in
- 0,*) break ;;
- *,-n|*,--no|*,--no-|*,--no-c|*,--no-ch|*,--no-che|*,--no-chec|\
- *,--no-check|*,--no-checko|*,--no-checkou|*,--no-checkout)
- no_checkout=yes ;;
- *,--na|*,--nak|*,--nake|*,--naked|\
- *,-b|*,--b|*,--ba|*,--bar|*,--bare) bare=yes ;;
- *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;;
- *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared)
- local_shared=yes; use_local=yes ;;
- 1,--template) usage ;;
- *,--template)
+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" ;;
- *,--template=*)
- template="$1" ;;
- *,-q|*,--quiet) quiet=-q ;;
- *,--use-separate-remote) ;;
- *,--no-separate-remote)
+ -q|--quiet)
+ quiet=-q ;;
+ --use-separate-remote|--no-separate-remote)
die "clones are always made with separate-remote layout" ;;
- 1,--reference) usage ;;
- *,--reference)
+ --reference)
shift; reference="$1" ;;
- *,--reference=*)
- reference=`expr "z$1" : 'z--reference=\(.*\)'` ;;
- *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin)
- case "$2" in
+ -o|--origin)
+ shift;
+ case "$1" in
'')
usage ;;
*/*)
- die "'$2' is not suitable for an origin name"
+ die "'$1' is not suitable for an origin name"
esac
- git-check-ref-format "heads/$2" ||
- die "'$2' is not suitable for a branch name"
+ 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="$2"; shift
+ origin="$1"
;;
- 1,-u|1,--upload-pack) usage ;;
- *,-u|*,--upload-pack)
+ -u|--upload-pack)
+ shift
+ upload_pack="--upload-pack=$1" ;;
+ --depth)
shift
- upload_pack="--exec=$1" ;;
- 1,--depth) usage;;
- *,--depth)
+ depth="--depth=$1" ;;
+ --)
shift
- depth="--depth=$1";;
- *,-*) usage ;;
- *) break ;;
+ break ;;
+ *)
+ usage ;;
esac
-do
shift
done
# it is local
if base=$(get_repo_base "$repo"); then
repo="$base"
- local=yes
+ if test -z "$depth"
+ then
+ local=yes
+ fi
fi
dir="$2"
# Try using "humanish" part of source repo if user didn't specify one
[ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
[ -e "$dir" ] && die "destination directory '$dir' already exists."
-mkdir -p "$dir" &&
-D=$(cd "$dir" && pwd) &&
-trap 'err=$?; cd ..; rm -rf "$D"; exit $err' 0
-case "$bare" in
-yes)
- GIT_DIR="$D" ;;
-*)
- GIT_DIR="$D/.git" ;;
-esac && export GIT_DIR && git-init-db ${template+"$template"} || usage
+[ 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() {
+ err=$?
+ test -z "$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 $err
+}
+trap cleanup 0
+mkdir -p "$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 "$reference/.git/objects"
then
- reference="$reference/.git"
+ ref_git="$reference/.git"
+ elif test -d "$reference/objects"
+ then
+ ref_git="$reference"
fi
- reference=$(cd "$reference" && pwd)
- echo "$reference/objects" >"$GIT_DIR/objects/info/alternates"
- (cd "$reference" && tar cf - refs) |
- (cd "$GIT_DIR/refs" &&
- mkdir reference-tmp &&
- cd reference-tmp &&
- tar xf -)
+ fi
+ if test -n "$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
rm -f "$GIT_DIR/CLONE_HEAD"
# We do local magic only when the user tells us to.
-case "$local,$use_local" in
-yes,yes)
+case "$local" in
+yes)
( cd "$repo/objects" ) ||
- die "-l flag seen but repository '$repo' is not local."
-
- 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/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null
- then
- l=l
- fi &&
- rm -f "$GIT_DIR/objects/sample" &&
- cd "$repo" &&
- find objects -depth -print | cpio -pumd$l "$GIT_DIR/" || exit 1
- ;;
- yes)
- mkdir -p "$GIT_DIR/objects/info"
- echo "$repo/objects" >> "$GIT_DIR/objects/info/alternates"
- ;;
- esac
+ die "cannot chdir to local '$repo/objects'."
+
+ if test "$local_shared" = yes
+ then
+ mkdir -p "$GIT_DIR/objects/info"
+ echo "$repo/objects" >>"$GIT_DIR/objects/info/alternates"
+ else
+ 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" &&
+ find objects -depth -print | cpio -pumd$l "$GIT_DIR/" || exit 1
+ fi
git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
;;
*)
;;
*)
case "$upload_pack" in
- '') git-fetch-pack --all -k $quiet $depth "$repo" ;;
- *) git-fetch-pack --all -k $quiet "$upload_pack" $depth "$repo" ;;
+ '') 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."
;;
if test -f "$GIT_DIR/CLONE_HEAD"
then
# Read git-fetch-pack -k output and store the remote branches.
- @@PERL@@ -e "$copy_refs" "$GIT_DIR" "$use_separate_remote" "$origin" ||
- exit
+ if [ -n "$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
-cd "$D" || exit
+if test -n "$W"; then
+ cd "$W" || exit
+else
+ cd "$D" || exit
+fi
-if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD"
+if test -z "$bare"
then
# a non-bare repository is always in separate-remote layout
remote_top="refs/remotes/$origin"
- head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
+ head_sha1=
+ test ! -r "$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
)
)
+ # 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/$head_points_at" &&
+ git symbolic-ref HEAD "refs/heads/$head_points_at" &&
# Tracking branch for the primary branch at the remote.
- origin_track="$remote_top/$head_points_at" &&
- git-update-ref HEAD "$head_sha1" &&
-
- # Upstream URL
- git-repo-config remote."$origin".url "$repo" &&
+ git update-ref HEAD "$head_sha1" &&
- # Set up the mappings to track the remote branches.
- git-repo-config remote."$origin".fetch \
- "+refs/heads/*:$remote_top/*" '^$' &&
rm -f "refs/remotes/$origin/HEAD"
- git-symbolic-ref "refs/remotes/$origin/HEAD" \
+ git symbolic-ref "refs/remotes/$origin/HEAD" \
"refs/remotes/$origin/$head_points_at" &&
- git-repo-config branch."$head_points_at".remote "$origin" &&
- git-repo-config branch."$head_points_at".merge "refs/heads/$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 && v=-v || v=
- git-read-tree -m -u $v HEAD HEAD
+ test "z$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
-