Preparing the experimental branch for improved Danube CI/CD experimentsexperimental

Fast forwarded to commit:cf93e6ee11c96de090b04196cc96b4a6b0948928

Change-Id: I13d10d870e8ffc7317ab03f8810592d5b2205875
Signed-off-by: Jonas Bjurel <jonas.bjurel@ericsson.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/build/f_isoroot/cache.mk b/build/f_isoroot/cache.mk
new file mode 100644
index 000000000..2df3b6bd1
--- /dev/null
+++ b/build/f_isoroot/cache.mk
@@ -0,0 +1,37 @@
+##############################################################################
+# stefan.k.berg@ericsson.com
+# jonas.bjurel@ericsson.com
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+#############################################################################
+# Cache operations - only used when building through ci/build.sh
+#
+# This file is only meant for a top Makefile which is only calling its
+# own SUBDIRS, without building any cachable artifact by itself.
+#############################################################################
+
+# Call sub caches
+SUBGETCACHE = $(addsuffix .getcache,$(SUBDIRS))
+$(SUBGETCACHE): %.getcache:
+	$(MAKE) -C $* -f Makefile get-cache
+
+SUBPUTCACHE = $(addsuffix .putcache,$(SUBDIRS))
+$(SUBPUTCACHE): %.putcache:
+	$(MAKE) -C $* -f Makefile put-cache
+
+SUBCLEANCACHE = $(addsuffix .cleancache,$(SUBDIRS))
+$(SUBCLEANCACHE): %.cleancache:
+	$(MAKE) -C $* -f Makefile clean-cache
+
+.PHONY: get-cache
+get-cache: $(SUBGETCACHE)
+
+.PHONY: put-cache
+put-cache: $(SUBPUTCACHE)
+
+.PHONY: clean-cache
+clean-cache: $(SUBCLEANCACHE)