Build in clone

Thanks to Johannes Schindelin for various comments and improvements,
including supporting cloning full bundles.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 523 deletions

diff --git a/git-clone.sh b/git-clone.sh
deleted file mode 100755
index 8c7fc7f631..0000000000
--- a/git-clone.sh
+++ /dev/null
@@ -1,523 +0,0 @@
-#!/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
-
-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() {
-	exec "$0" -h
-}
-
-eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)"
-
-get_repo_base() {
-	(
-		cd "`/bin/pwd`" &&
-		cd "$1" || cd "$1.git" &&
-		{
-			cd .git
-			pwd
-		}
-	) 2>/dev/null
-}
-
-if [ -n "$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 () {
-	# $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 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/\(.*\)'` &&
-		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" "$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
-}
-
-quiet=
-local=no
-use_local_hardlink=yes
-local_shared=no
-unset template
-no_checkout=
-upload_pack=
-bare=
-reference=
-origin=
-origin_override=
-use_separate_remote=t
-depth=
-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" ;;
-	-q|--quiet)
-		quiet=-q ;;
-	--use-separate-remote|--no-separate-remote)
-		die "clones are always made with separate-remote layout" ;;
-	--reference)
-		shift; reference="$1" ;;
-	-o|--origin)
-		shift;
-		case "$1" in
-		'')
-		    usage ;;
-		*/*)
-		    die "'$1' is not suitable for an origin name"
-		esac
-		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="$1"
-		;;
-	-u|--upload-pack)
-		shift
-		upload_pack="--upload-pack=$1" ;;
-	--depth)
-		shift
-		depth="--depth=$1" ;;
-	--)
-		shift
-		break ;;
-	*)
-		usage ;;
-	esac
-	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="$base"
-	if test -z "$depth"
-	then
-		local=yes
-	fi
-elif test -f "$repo"
-then
-	case "$repo" in /*) ;; *) repo="$PWD/$repo" ;; esac
-fi
-
-# Decide the directory name of the new repository
-if test -n "$2"
-then
-	dir="$2"
-	test $# = 2 || die "excess parameter to git-clone"
-else
-	# Derive one from the repository name
-	# Try using "humanish" part of source repo if user didn't specify one
-	if test -f "$repo"
-	then
-		# Cloning from a bundle
-		dir=$(echo "$repo" | sed -e 's|/*\.bundle$||' -e 's|.*/||g')
-	else
-		dir=$(echo "$repo" |
-			sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
-	fi
-fi
-
-[ -e "$dir" ] && die "destination directory '$dir' already exists."
-[ yes = "$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 "$reference/.git/objects"
-		then
-			ref_git="$reference/.git"
-		elif test -d "$reference/objects"
-		then
-			ref_git="$reference"
-		fi
-	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 '$reference' is not a local directory."
-	fi
-fi
-
-rm -f "$GIT_DIR/CLONE_HEAD"
-
-# We do local magic only when the user tells us to.
-case "$local" in
-yes)
-	( cd "$repo/objects" ) ||
-		die "cannot chdir to local '$repo/objects'."
-
-	if test "$local_shared" = yes
-	then
-		mkdir -p "$GIT_DIR/objects/info"
-		echo "$repo/objects" >>"$GIT_DIR/objects/info/alternates"
-	else
-		cpio_quiet_flag=""
-		cpio --help 2>&1 | grep -- --quiet >/dev/null && \
-			cpio_quiet_flag=--quiet
-		l= &&
-		if test "$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 $cpio_quiet_flag -pumd$l "$GIT_DIR/" || \
-			exit 1
-	fi
-	git-ls-remote "$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/" "$GIT_DIR/objects/" ||
-		exit
-		# Look at objects/info/alternates for rsync -- http will
-		# support it natively and git native ones will do it on the
-		# remote end.  Not having that file is not a crime.
-		rsync -q "$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://*)
-		case "$depth" in
-		"") ;;
-		*) die "shallow over http or ftp not supported" ;;
-		esac
-		if test -z "@@NO_CURL@@"
-		then
-			clone_dumb_http "$repo" "$D"
-		else
-			die "http transport not supported, rebuild Git with curl support"
-		fi
-		;;
-	*)
-		if [ -f "$repo" ] ; then
-			git bundle unbundle "$repo" > "$GIT_DIR/CLONE_HEAD" ||
-			die "unbundle from '$repo' failed."
-		else
-			case "$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."
-		fi
-		;;
-	esac
-	;;
-esac
-test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp"
-
-if test -f "$GIT_DIR/CLONE_HEAD"
-then
-	# Read git-fetch-pack -k output and store the remote branches.
-	if [ -n "$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
-
-if test -n "$W"; then
-	cd "$W" || exit
-else
-	cd "$D" || exit
-fi
-
-if test -z "$bare"
-then
-	# a non-bare repository is always in separate-remote layout
-	remote_top="refs/remotes/$origin"
-	head_sha1=
-	test ! -r "$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
-		# 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 $remote_top the remote HEAD seems to point at.
-	head_points_at=$(
-		(
-			test -f "$GIT_DIR/$remote_top/master" && 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 "$name"
-				done=t
-			fi
-		done
-		)
-	)
-
-	# Upstream URL
-	git config remote."$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" &&
-
-		# 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/$head_points_at"
-		;;
-	'')
-		if test -z "$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 -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