#
# 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
-usage() {
- echo >&2 "Usage: $0 [--template=<template_directory>] [--use-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [-n] <repo> [<dir>]"
+die() {
+ echo >&2 "$@"
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
+ (
+ cd "`/bin/pwd`" &&
+ cd "$1" || cd "$1.git" &&
+ {
+ cd .git
+ pwd
+ }
+ ) 2>/dev/null
}
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
cd "$2" &&
clone_tmp="$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;
- }
+ 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
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, $tag_top);
- next;
- }
-}
-close FH;
-'
-
quiet=
local=no
use_local=no
reference=
origin=
origin_override=
-use_separate_remote=
+use_separate_remote=t
+depth=
+no_progress=
+test -t 1 || no_progress=--no-progress
while
case "$#,$1" in
0,*) break ;;
*,--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)
+ *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared)
local_shared=yes; use_local=yes ;;
1,--template) usage ;;
*,--template)
*,--template=*)
template="$1" ;;
*,-q|*,--quiet) quiet=-q ;;
- *,--use-separate-remote)
- use_separate_remote=t ;;
+ *,--use-separate-remote) ;;
+ *,--no-separate-remote)
+ die "clones are always made with separate-remote layout" ;;
1,--reference) usage ;;
*,--reference)
shift; reference="$1" ;;
'')
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 --origin 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
done
repo="$1"
-if test -z "$repo"
-then
- echo >&2 'you must specify a repository to clone.'
- exit 1
-fi
+test -n "$repo" ||
+ die 'you must specify a repository to clone.'
-# --bare implies --no-checkout
+# --bare implies --no-checkout and --no-separate-remote
if test yes = "$bare"
then
if test yes = "$origin_override"
then
- echo >&2 '--bare and --origin $origin options are incompatible.'
- exit 1
- fi
- if test t = "$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"
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 -rf "$D"; exit $err' 0
GIT_DIR="$D" ;;
*)
GIT_DIR="$D/.git" ;;
-esac && export GIT_DIR && git-init-db ${template+"$template"} || usage
+esac && export GIT_DIR && git init $quiet ${template+"$template"} || usage
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" "$b"
+ done
else
- echo >&2 "$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)
*)
case "$repo" in
rsync://*)
+ case "$depth" in
+ "") ;;
+ *) die "shallow over rsync not supported" ;;
+ esac
rsync $quiet -av --ignore-existing \
--exclude info "$repo/objects/" "$GIT_DIR/objects/" ||
exit
fi
git-ls-remote "$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 $no_progress "$repo";;
+ *) git-fetch-pack --all -k $quiet "$upload_pack" $depth $no_progress "$repo" ;;
+ esac >"$GIT_DIR/CLONE_HEAD" ||
+ die "fetch-pack from '$repo' failed."
;;
esac
;;
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 "$D" || exit
if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD"
then
- # Figure out which remote branch HEAD points at.
- case "$use_separate_remote" in
- '') remote_top=refs/heads ;;
- *) remote_top="refs/remotes/$origin" ;;
- esac
-
+ # a non-bare repository is always in separate-remote layout
+ remote_top="refs/remotes/$origin"
head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
case "$head_sha1" in
'ref: refs/'*)
# 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/$origin file, and update our "$head_points_at".
+ # 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
?*)
- mkdir -p "$GIT_DIR/remotes" &&
- git-symbolic-ref HEAD "refs/heads/$head_points_at" &&
- case "$use_separate_remote" in
- t) origin_track="$remote_top/$head_points_at"
- git-update-ref HEAD "$head_sha1" ;;
- *) origin_track="$remote_top/$origin"
- git-update-ref "refs/heads/$origin" "$head_sha1" ;;
- esac &&
- echo >"$GIT_DIR/remotes/$origin" \
- "URL: $repo
-Pull: refs/heads/$head_points_at:$origin_track" &&
- (cd "$GIT_DIR/$remote_top" && find . -type f -print) |
- while read dotslref
- do
- name=`expr "$dotslref" : './\(.*\)'`
- if test "z$head_points_at" = "z$name"
- then
- continue
- fi
- if test "$use_separate_remote" = '' &&
- test "z$origin" = "z$name"
- then
- continue
- fi
- echo "Pull: refs/heads/${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.
+ 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/$head_points_at"
+ ;;
+ '')
+ # Source had detached HEAD pointing nowhere
+ git update-ref --no-deref HEAD "$head_sha1" &&
+ rm -f "refs/remotes/$origin/HEAD"
+ ;;
esac
case "$no_checkout" in
'')
- 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
-