Makefiles: Tidy up output

A few things were making the make output inconsistent and causing it to
print bad paths. Fix these:
* Define $RELATIVE_DIR in Makefile.quiet if not defined (eg docs case)
* Print a line when executing in envoy/ to provide context for message
* Fix up usage of $(ECHO_CHECK)

Signed-off-by: Joe Stringer <[email protected]>

Makefile.quiet

@@ -1,9 +1,13 @@
+ifeq ($(ROOT_DIR),)
+	ROOT_DIR ?= $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
+	RELATIVE_DIR ?= $(shell echo $(realpath .) | sed "s;$(ROOT_DIR)[/]*;;")
+endif
 ifeq ($(V),0)
 	QUIET=@
 	ECHO_CC=echo "  CC    $(RELATIVE_DIR)/$@"
 	ECHO_GEN=echo "  GEN   $(RELATIVE_DIR)/"
 	ECHO_GO=echo "  GO    $(RELATIVE_DIR)/$@"
-	ECHO_CHECK=echo "  CHECK $(RELATIVE_DIR)"
+	ECHO_CHECK=echo "  CHECK$(RELATIVE_DIR)"
 	ECHO_GINKGO=echo "  GINKG $(RELATIVE_DIR)"
 	ECHO_CLEAN=echo "  CLEAN $(RELATIVE_DIR)"
 	SPHINXOPTS+="-q"

daemon/Makefile

@@ -50,7 +50,7 @@ endif
 
 .PHONY: check-bindata
 check-bindata: bindata.go
-	@$(ECHO_CHECK) contrib/scripts/bindata.sh
+	@echo "  CHECK contrib/scripts/bindata.sh"
 	$(QUIET) ../contrib/scripts/bindata.sh $(GO_BINDATA_SHA1SUM)
 
 apply-bindata: go-bindata

envoy/Makefile

@@ -1,4 +1,4 @@
-# Copyright 2017 Authors of Cilium
+# Copyright 2017-2019 Authors of Cilium
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,17 +18,19 @@ include ../Makefile.defs
 ifdef PKG_BUILD
 
 all:
-	echo "cilium-envoy has been moved to github.com/cilium/proxy"
+	@echo "  SKIP  $(RELATIVE_DIR)/"
+	@echo "cilium-envoy has been moved to github.com/cilium/proxy"
 
 install:
-	echo "cilium-envoy must be installed separately"
+	@echo "cilium-envoy must be installed separately"
 
 clean:
 
 else
 
 all:
-	echo "cilium-envoy has been moved to github.com/cilium/proxy"
+	@echo "  SKIP  $(RELATIVE_DIR)/"
+	@echo "cilium-envoy has been moved to github.com/cilium/proxy"
 
 install:
 ifndef DISABLE_ENVOY_INSTALLATION