refactoring most of bootstrap into makefile. bootstrap supports branch checkouts, and using existing cloned dokku repos

Makefile

@@ -1,22 +1,28 @@
 GITRECEIVE_URL = https://raw.github.com/progrium/gitreceive/master/gitreceive
 SSHCOMMAND_URL = https://raw.github.com/progrium/sshcommand/master/sshcommand
 PLUGINHOOK_URL = https://s3.amazonaws.com/progrium-pluginhook/pluginhook_0.1.0_amd64.deb
+DOCKER_URL = https://launchpad.net/~dotcloud/+archive/lxc-docker/+files/lxc-docker_0.4.2-1_amd64.deb
+STACK_URL = https://s3.amazonaws.com/progrium-dokku/progrium_buildstep.tgz
 
-all: install
+all: install-all
 
-install: gitreceive sshcommand pluginhook copy
+install-all: dependencies stack install plugins
 
-copy:
+install:
 	cp dokku /usr/local/bin/dokku
 	cp receiver /home/git/receiver
+
+plugins: pluginhook docker
 	mkdir -p /var/lib/dokku/plugins
 	cp -r plugins/* /var/lib/dokku/plugins
-	PLUGIN_PATH=/var/lib/dokku/plugins pluginhook install
+	dokku plugins
+
+dependencies: gitreceive sshcommand pluginhook docker stack
 
 gitreceive:
 	wget -qO /usr/local/bin/gitreceive ${GITRECEIVE_URL}
 	chmod +x /usr/local/bin/gitreceive
-	gitreceive init
+	test -f /home/git/receiver || gitreceive init
 
 sshcommand:
 	wget -qO /usr/local/bin/sshcommand ${SSHCOMMAND_URL}
@@ -25,7 +31,17 @@ sshcommand:
 
 pluginhook:
 	wget -qO /tmp/pluginhook_0.1.0_amd64.deb ${PLUGINHOOK_URL}
-	cd /tmp && dpkg -i pluginhook_0.1.0_amd64.deb
+	dpkg -i /tmp/pluginhook_0.1.0_amd64.deb
+
+docker: aufs
+	wget -qO /tmp/lxc-docker_0.4.2-1_amd64.deb ${DOCKER_URL}
+	dpkg --force-depends -i /tmp/lxc-docker_0.4.2-1_amd64.deb && apt-get install -f -y
+
+aufs:
+	modprobe aufs || apt-get install -y linux-image-extra-`uname -r`
+
+stack:
+	@docker images | grep progrium/buildstep || curl ${STACK_URL} | gunzip -cd | docker import - progrium/buildstep
 
 count:
 	@echo "Core lines:"