[PATCH] Support cloning packed repo from dumb http servers.

Using the information prepared with update-server-info, a truly
dumb http server can allow cloning with this client side
support.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

git-clone-dumb-http

@@ -0,0 +1,51 @@
+#!/bin/sh
+#
+# Copyright (c) 2005, Junio C Hamano
+#
+# Called by git-clone-script
+# Exits 2 when the remote site does not support dumb server protocol.
+
+# Usage: git-clone-dumb-http <remote-repo> <local-dir>
+
+R=${1?"remote repository"} D=${2?"local directory"}
+
+if [ -n "$GIT_SSL_NO_VERIFY" ]; then
+    curl_extra_args="-k"
+fi
+http_fetch () {
+	# $1 = Remote, $2 = Local
+	curl -ns $curl_extra_args "$1" >"$2"
+}
+
+cd "$D" && 
+clone_tmp=".git/clone-tmp" &&
+mkdir -p "$clone_tmp" || exit 1
+trap "rm -rf .git/clone-tmp" 0 1 2 3 15
+
+http_fetch "$R/info/refs" "$clone_tmp/refs" &&
+http_fetch "$R/objects/info/packs" "$clone_tmp/packs" || exit 2
+
+# We do not have to worry about rev-cache when cloning.
+# http_fetch "$R/info/rev-cache" "$clone_tmp/rev-cache" 
+
+# Clone packs
+while read type name
+do
+	case "$type" in
+	P) ;;
+	*) continue ;;
+	esac &&
+
+	idx=`expr "$name" : '\(.*\)\.pack'`.idx
+	http_fetch "$R/objects/pack/$name" ".git/objects/pack/$name" &&
+	http_fetch "$R/objects/pack/$idx" ".git/objects/pack/$idx" &&
+	git-verify-pack ".git/objects/pack/$idx" || exit 1
+
+done <"$clone_tmp/packs"
+
+# Then clone refs.
+while read sha1 refname
+do
+	name=`expr "$refname" : 'refs/\(.*\)'` &&
+	git-http-pull -v -a -w "$name" "$name" "$R/" || exit 1
+done <"$clone_tmp/refs"