1 files changed, 97 insertions, 105 deletions
diff --git a/git-clone.sh b/git-clone.sh
index 3f006d1a77..1bd54ded3c 100755
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -14,7 +14,7 @@ die() {
 }
 
 usage() {
-	die "Usage: $0 [--template=<template_directory>] [--use-separate-remote] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [-n] <repo> [<dir>]"
+	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() {
@@ -36,7 +36,7 @@ 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" ||
@@ -48,6 +48,10 @@ Perhaps git-update-server-info needs to be run there?"
 		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
@@ -62,48 +66,6 @@ Perhaps git-update-server-info needs to be run there?"
 	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, $tag_top);
-		next;
-	}
-}
-close FH;
-'
-
 quiet=
 local=no
 use_local=no
@@ -115,7 +77,8 @@ bare=
 reference=
 origin=
 origin_override=
-use_separate_remote=
+use_separate_remote=t
+depth=
 while
 	case "$#,$1" in
 	0,*) break ;;
@@ -133,8 +96,9 @@ while
 	*,--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" ;;
@@ -157,7 +121,13 @@ while
 	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
@@ -169,18 +139,15 @@ repo="$1"
 test -n "$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
 		die '--bare and --origin $origin options are incompatible.'
 	fi
-	if test t = "$use_separate_remote"
-	then
-		die '--bare and --use-separate-remote options are incompatible.'
-	fi
 	no_checkout=yes
+	use_separate_remote=
 fi
 
 if test -z "$origin"
@@ -207,23 +174,36 @@ yes)
 	GIT_DIR="$D" ;;
 *)
 	GIT_DIR="$D/.git" ;;
-esac && export GIT_DIR && git-init-db ${template+"$template"} || usage
+esac && export GIT_DIR && git-init ${template+"$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" "$b"
+		done
 	else
 		die "reference repository '$reference' is not a local directory."
 	fi
@@ -265,6 +245,10 @@ yes,yes)
 *)
 	case "$repo" in
 	rsync://*)
+		case "$depth" in
+		"") ;;
+		*) die "shallow over rsync not supported" ;;
+		esac
 		rsync $quiet -av --ignore-existing  \
 			--exclude info "$repo/objects/" "$GIT_DIR/objects/" ||
 		exit
@@ -293,6 +277,10 @@ yes,yes)
 		git-ls-remote "$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"
@@ -302,8 +290,8 @@ yes,yes)
 		;;
 	*)
 		case "$upload_pack" in
-		'') git-fetch-pack --all -k $quiet "$repo" ;;
-		*) git-fetch-pack --all -k $quiet "$upload_pack" "$repo" ;;
+		'') 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."
 		;;
@@ -315,20 +303,37 @@ 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" "$origin" ||
-	exit
+	if [ -n "$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/'*)
@@ -344,7 +349,7 @@ then
 	# 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/^\.\///'
 		) | (
@@ -362,41 +367,28 @@ then
 		)
 	)
 
-	# Write out remotes/$origin file, and update our "$head_points_at".
+	# Write out remote.$origin config, and update our "$head_points_at".
 	case "$head_points_at" in
 	?*)
-		mkdir -p "$GIT_DIR/remotes" &&
+		# Local default branch
 		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/$head_points_at"
-		esac
+
+		# Tracking branch for the primary branch at the remote.
+		origin_track="$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