# See git-sh-setup why.
unset CDPATH
-usage() {
- echo >&2 "Usage: $0 [--use-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [-o <name>] [-n] <repo> [<dir>]"
+die() {
+ echo >&2 "$@"
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>]"
+}
+
get_repo_base() {
(cd "$1" && (cd .git ; pwd)) 2> /dev/null
}
clone_dumb_http () {
# $1 - remote, $2 - local
cd "$2" &&
- clone_tmp='.git/clone-tmp' &&
+ clone_tmp="$GIT_DIR/clone-tmp" &&
mkdir -p "$clone_tmp" || exit 1
- http_fetch "$1/info/refs" "$clone_tmp/refs" || {
- echo >&2 "Cannot get remote repository information.
+ 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?"
- exit 1;
- }
while read sha1 refname
do
- name=`expr "$refname" : 'refs/\(.*\)'` &&
+ 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 "$name" : 'heads/\(.*\)'`
+ branch_name=`expr "z$name" : 'zheads/\(.*\)'`
then
tname="remotes/$origin/$branch_name"
else
git-http-fetch -v -a -w "$tname" "$name" "$1/" || exit 1
done <"$clone_tmp/refs"
rm -fr "$clone_tmp"
- http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD"
-}
-
-# 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;
- }
+ http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" ||
+ rm -f "$GIT_DIR/REMOTE_HEAD"
}
-close FH;
-'
quiet=
+local=no
use_local=no
local_shared=no
+unset template
no_checkout=
upload_pack=
bare=
reference=
origin=
origin_override=
-use_separate_remote=
+use_separate_remote=t
+depth=
while
case "$#,$1" in
0,*) break ;;
*,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;;
*,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared)
local_shared=yes; use_local=yes ;;
+ 1,--template) usage ;;
+ *,--template)
+ shift; template="--template=$1" ;;
+ *,--template=*)
+ template="$1" ;;
*,-q|*,--quiet) quiet=-q ;;
- *,--use-separate-remote)
- use_separate_remote=t ;;
- 1,-o) usage;;
+ *,--use-separate-remote) ;;
+ *,--no-separate-remote)
+ die "clones are always made with separate-remote layout" ;;
1,--reference) usage ;;
*,--reference)
shift; reference="$1" ;;
*,--reference=*)
- reference=`expr "$1" : '--reference=\(.*\)'` ;;
- *,-o)
+ reference=`expr "z$1" : 'z--reference=\(.*\)'` ;;
+ *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin)
case "$2" in
+ '')
+ usage ;;
*/*)
- echo >&2 "'$2' is not suitable for an origin name"
- exit 1
+ die "'$2' is not suitable for an origin name"
esac
- git-check-ref-format "heads/$2" || {
- echo >&2 "'$2' is not suitable for a branch name"
- exit 1
- }
- test -z "$origin_override" || {
- echo >&2 "Do not give more than one -o options."
- exit 1
- }
+ git-check-ref-format "heads/$2" ||
+ die "'$2' is not suitable for a branch name"
+ test -z "$origin_override" ||
+ die "Do not give more than one --origin options."
origin_override=yes
origin="$2"; shift
;;
1,-u|1,--upload-pack) usage ;;
*,-u|*,--upload-pack)
shift
- upload_pack="--exec=$1" ;;
+ upload_pack="--upload-pack=$1" ;;
+ *,--upload-pack=*)
+ upload_pack=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;;
+ 1,--depth) usage;;
+ *,--depth)
+ shift
+ depth="--depth=$1";;
*,-*) usage ;;
*) break ;;
esac
shift
done
-# --bare implies --no-checkout
+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
- echo >&2 '--bare and -o $origin options are incompatible.'
- exit 1
- fi
- if test t = "$use_separate_remote"
- then
- echo >&2 '--bare and --use-separate-remote options are incompatible.'
- exit 1
+ die '--bare and --origin $origin options are incompatible.'
fi
no_checkout=yes
+ use_separate_remote=
fi
if test -z "$origin"
# 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
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 "$dir" ] && echo "$dir already exists." && usage
+[ -e "$dir" ] && die "destination directory '$dir' already exists."
mkdir -p "$dir" &&
D=$(cd "$dir" && pwd) &&
-trap 'err=$?; cd ..; rm -r "$D"; exit $err' exit
-case "$bare" in
-yes) GIT_DIR="$D" ;;
-*) GIT_DIR="$D/.git" ;;
-esac && export GIT_DIR && git-init-db || usage
+trap 'err=$?; cd ..; rm -rf "$D"; exit $err' 0
case "$bare" in
yes)
GIT_DIR="$D" ;;
*)
GIT_DIR="$D/.git" ;;
-esac
+esac && export GIT_DIR && git-init ${template+"$template"} || usage
if test -n "$reference"
then
(cd "$GIT_DIR/refs" &&
mkdir reference-tmp &&
cd reference-tmp &&
- tar xf -)
+ tar xf - &&
+ find refs ! -type d -print |
+ while read ref
+ do
+ if test -h "$ref"
+ then
+ # Old-style symbolic link ref. Not likely
+ # to appear under refs/ but we might as well
+ # deal with them.
+ :
+ elif test -f "$ref"
+ then
+ point=$(cat "$ref") &&
+ case "$point" in
+ 'ref: '*) ;;
+ *) continue ;;
+ esac
+ fi
+ # The above makes true ref to 'continue' and
+ # we will come here when we are looking at
+ # symbolic link ref or a textual symref (or
+ # garbage, like fifo).
+ # The true ref pointed at by it is enough to
+ # ensure that we do not fetch objects reachable
+ # from it.
+ rm -f "$ref"
+ done
+ )
else
- echo >&2 "$reference: not a local directory." && usage
+ die "reference repository '$reference' is not a local directory."
fi
fi
# 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 $repo is not local."
- exit 1
- }
+ ( cd "$repo/objects" ) ||
+ die "-l flag seen but repository '$repo' is not local."
case "$local_shared" in
no)
;;
yes)
mkdir -p "$GIT_DIR/objects/info"
- {
- test -f "$repo/objects/info/alternates" &&
- cat "$repo/objects/info/alternates";
- echo "$repo/objects"
- } >"$GIT_DIR/objects/info/alternates"
+ echo "$repo/objects" >> "$GIT_DIR/objects/info/alternates"
;;
esac
- git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD"
+ git-ls-remote "$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/" "$GIT_DIR/objects/" ||
exit
done
rm -f "$GIT_DIR/TMP_ALT"
fi
- git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD"
+ git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
;;
- http://*)
+ 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" "$D"
else
- echo >&2 "http transport not supported, rebuild Git with curl support"
- exit 1
+ die "http transport not supported, rebuild Git with curl support"
fi
;;
*)
- cd "$D" && case "$upload_pack" in
- '') git-fetch-pack --all -k $quiet "$repo" ;;
- *) git-fetch-pack --all -k $quiet "$upload_pack" "$repo" ;;
- esac >"$GIT_DIR/CLONE_HEAD" || {
- echo >&2 "fetch-pack from '$repo' failed."
- exit 1
- }
+ case "$upload_pack" in
+ '') git-fetch-pack --all -k $quiet $depth "$repo" ;;
+ *) git-fetch-pack --all -k $quiet "$upload_pack" $depth "$repo" ;;
+ esac >"$GIT_DIR/CLONE_HEAD" ||
+ die "fetch-pack from '$repo' failed."
;;
esac
;;
if test -f "$GIT_DIR/CLONE_HEAD"
then
- # Figure out where the remote HEAD points at.
- perl -e "$copy_refs" "$GIT_DIR" "$use_separate_remote" "$origin"
+ # Read git-fetch-pack -k output and store the remote branches.
+ if [ -n "$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
cd "$D" || exit
if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD"
then
+ # a non-bare repository is always in separate-remote layout
+ remote_top="refs/remotes/$origin"
head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
- # Figure out which remote branch HEAD points at.
- case "$use_separate_remote" in
- '') remote_top=refs/heads ;;
- *) remote_top="refs/remotes/$origin" ;;
+ case "$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/$head_sha1"`
+ ;;
esac
- # What to use to track the remote primary branch
- if test -n "$use_separate_remote"
- then
- origin_tracking="remotes/$origin/master"
- else
- origin_tracking="heads/$origin"
- fi
-
- # The name under $remote_top the remote HEAD seems to point at
+ # The name under $remote_top the remote HEAD seems to point at.
head_points_at=$(
(
- echo "master"
+ test -f "$GIT_DIR/$remote_top/master" && echo "master"
cd "$GIT_DIR/$remote_top" &&
find . -type f -print | sed -e 's/^\.\///'
) | (
)
)
- # Write out remotes/$origin file.
+ # Write out remote.$origin config, and update our "$head_points_at".
case "$head_points_at" in
?*)
- mkdir -p "$GIT_DIR/remotes" &&
- echo >"$GIT_DIR/remotes/$origin" \
- "URL: $repo
-Pull: refs/heads/$head_points_at:refs/$origin_tracking" &&
- case "$use_separate_remote" in
- t) git-update-ref HEAD "$head_sha1" ;;
- *) git-update-ref "refs/heads/$origin" $(git-rev-parse HEAD) ;;
- esac &&
- (cd "$GIT_DIR/$remote_top" && find . -type f -print) |
- while read dotslref
- do
- name=`expr "$dotslref" : './\(.*\)'` &&
- test "$head_points_at" = "$name" ||
- test "$origin" = "$name" ||
- echo "Pull: refs/heads/${name}:$remote_top/${name}"
- done >>"$GIT_DIR/remotes/$origin" &&
- case "$use_separate_remote" in
- t)
- rm -f "refs/remotes/$origin/HEAD"
- git-symbolic-ref "refs/remotes/$origin/HEAD" \
- "refs/remotes/$origin/$head_points_at"
- esac
+ # Local default branch
+ 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-config remote."$origin".url "$repo" &&
+
+ # Set up the mappings to track the remote branches.
+ git-config remote."$origin".fetch \
+ "+refs/heads/*:$remote_top/*" '^$' &&
+ rm -f "refs/remotes/$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/$head_points_at"
esac
case "$no_checkout" in
'')
- git-read-tree -m -u -v HEAD HEAD
+ test "z$quiet" = 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 - exit
+trap - 0