Import Makefile.dapper downloaded from Shipyard

Instead of redefining the dapper file here, download it from Shiyard
Also use the BASE_BRANCH env variable for the dapper file

Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>

.gitignore

@@ -2,3 +2,4 @@
 .idea
 .shflags
 *.tgz
+Makefile.dapper

Dockerfile.dapper

@@ -1,4 +1,5 @@
-FROM quay.io/submariner/shipyard-dapper-base:devel
+ARG BASE_BRANCH
+FROM quay.io/submariner/shipyard-dapper-base:${BASE_BRANCH}
 
 ARG DAPPER_HOST_ARCH
 ENV HOST_ARCH=${DAPPER_HOST_ARCH} ARCH=${DAPPER_HOST_ARCH} \

Makefile

@@ -1,3 +1,6 @@
+BASE_BRANCH ?= devel
+export BASE_BRANCH
+
 ifneq (,$(DAPPER_HOST_ARCH))
 
 # Running in Dapper
@@ -54,9 +57,13 @@ else
 
 # Not running in Dapper
 
+Makefile.dapper:
+	@echo Downloading $@
+	@curl -sfLO https://raw.githubusercontent.com/submariner-io/shipyard/$(BASE_BRANCH)/$@
+
 include Makefile.dapper
 
 endif
 
 # Disable rebuilding Makefile
-Makefile Makefile.dapper Makefile.inc: ;
+Makefile Makefile.inc: ;

Makefile.dapper

@@ -1,26 +0,0 @@
-# This Makefile contains the rules required to set up our
-# Dapper-based build environment; it can be copied as-is to
-# other projects (and needs to be copied, it can't be shared
-# via the Dapper image since it's needed to retrieve the image)
-
-.dapper:
-	@echo Downloading dapper
-	@curl -sL https://releases.rancher.com/dapper/latest/dapper-`uname -s`-`uname -m` > .dapper.tmp
-	@@chmod +x .dapper.tmp
-	@./.dapper.tmp -v
-	@mv .dapper.tmp .dapper
-
-invoke_dapper = +./.dapper -m bind make -- $1
-
-%: .dapper
-	@echo Invoking Dapper, MAKEFLAGS=$(MAKEFLAGS)
-	$(call invoke_dapper,$@)
-
-# Ensure that files in the current directory don't hide Dapper targets
-$(wildcard [^M]*): .dapper
-	$(call invoke_dapper,$@)
-
-shell: .dapper
-	./.dapper -m bind -s
-
-.PHONY: shell $(wildcard [^M]*)