418 lines
10 KiB
Bash
Executable File
418 lines
10 KiB
Bash
Executable File
#!/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
|
|
|
|
die() {
|
|
echo >&2 "$@"
|
|
exit 1
|
|
}
|
|
|
|
usage() {
|
|
die "Usage: $0 [--template=<template_directory>] [--no-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [-n] <repo> [<dir>]"
|
|
}
|
|
|
|
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 -nsfL $curl_extra_args "$1" >"$2"
|
|
}
|
|
|
|
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-repo-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?"
|
|
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" "$name" "$1/" || exit 1
|
|
done <"$clone_tmp/refs"
|
|
rm -fr "$clone_tmp"
|
|
http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" ||
|
|
rm -f "$GIT_DIR/REMOTE_HEAD"
|
|
}
|
|
|
|
# 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, $tag_top);
|
|
next;
|
|
}
|
|
}
|
|
close FH;
|
|
'
|
|
|
|
quiet=
|
|
local=no
|
|
use_local=no
|
|
local_shared=no
|
|
unset template
|
|
no_checkout=
|
|
upload_pack=
|
|
bare=
|
|
reference=
|
|
origin=
|
|
origin_override=
|
|
use_separate_remote=t
|
|
while
|
|
case "$#,$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)
|
|
shift; template="--template=$1" ;;
|
|
*,--template=*)
|
|
template="$1" ;;
|
|
*,-q|*,--quiet) quiet=-q ;;
|
|
*,--use-separate-remote)
|
|
# default
|
|
use_separate_remote=t ;;
|
|
*,--no-separate-remote)
|
|
use_separate_remote= ;;
|
|
1,--reference) usage ;;
|
|
*,--reference)
|
|
shift; reference="$1" ;;
|
|
*,--reference=*)
|
|
reference=`expr "z$1" : 'z--reference=\(.*\)'` ;;
|
|
*,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin)
|
|
case "$2" in
|
|
'')
|
|
usage ;;
|
|
*/*)
|
|
die "'$2' is not suitable for an origin name"
|
|
esac
|
|
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" ;;
|
|
*,-*) usage ;;
|
|
*) break ;;
|
|
esac
|
|
do
|
|
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"
|
|
local=yes
|
|
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
|
|
|
|
if test -n "$reference"
|
|
then
|
|
if test -d "$reference"
|
|
then
|
|
if test -d "$reference/.git/objects"
|
|
then
|
|
reference="$reference/.git"
|
|
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 -)
|
|
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 "$local,$use_local" in
|
|
yes,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" >> "$GIT_DIR/objects/info/alternates"
|
|
;;
|
|
esac
|
|
git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
|
|
;;
|
|
*)
|
|
case "$repo" in
|
|
rsync://*)
|
|
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://*)
|
|
if test -z "@@NO_CURL@@"
|
|
then
|
|
clone_dumb_http "$repo" "$D"
|
|
else
|
|
die "http transport not supported, rebuild Git with curl support"
|
|
fi
|
|
;;
|
|
*)
|
|
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" ||
|
|
die "fetch-pack from '$repo' failed."
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
test -d "$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.
|
|
@@PERL@@ -e "$copy_refs" "$GIT_DIR" "$use_separate_remote" "$origin" ||
|
|
exit
|
|
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/$origin" ;;
|
|
esac
|
|
|
|
head_sha1=`cat "$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 $remote_top the remote HEAD seems to point at.
|
|
head_points_at=$(
|
|
(
|
|
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 "$name"
|
|
done=t
|
|
fi
|
|
done
|
|
)
|
|
)
|
|
|
|
# Write out remotes/$origin file, 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 &&
|
|
git-repo-config remote."$origin".url "$repo" &&
|
|
git-repo-config remote."$origin".fetch \
|
|
"refs/heads/$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$name"
|
|
then
|
|
continue
|
|
fi
|
|
git-repo-config remote."$origin".fetch "refs/heads/${name}:$remote_top/${name}" '^$'
|
|
done &&
|
|
case "$use_separate_remote" in
|
|
t)
|
|
rm -f "refs/remotes/$origin/HEAD"
|
|
git-symbolic-ref "refs/remotes/$origin/HEAD" \
|
|
"refs/remotes/$origin/$head_points_at"
|
|
esac &&
|
|
git-repo-config branch."$head_points_at".remote "$origin" &&
|
|
git-repo-config branch."$head_points_at".merge "refs/heads/$head_points_at"
|
|
esac
|
|
|
|
case "$no_checkout" in
|
|
'')
|
|
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 - 0
|
|
|