Allow to build packages' sources as separate target

* Use "make sources" to prepare sources for building packages
  The list of packages is defined in packages_list
* Use "make clean-repos" to clean repos

Related-bug: #1427239
Related-bug: #1433653
Change-Id: Ieef6728535f435bb7190c4cf0f90d19903a7ef8b

packages/module.mk

@@ -121,3 +121,7 @@ $(BUILD_DIR)/packages/build-late.done:
 
 packages-late: $(BUILD_DIR)/packages/build-late.done
 packages-rpm-late: $(BUILD_DIR)/packages/rpm/build-late.done
+
+.PHONY: sources
+
+sources: $(packages_list:%=$(BUILD_DIR)/packages/source_%.done)

packages/rpm/module.mk

@@ -57,7 +57,7 @@ $(BUILD_DIR)/packages/rpm/$1-repocleanup.done: $(BUILD_DIR)/mirror/centos/repo.d
 endef
 
 
-fuel_rpm_packages:=\
+packages_list:=\
 fencing-agent \
 fuel-agent \
 fuel-image \
@@ -75,7 +75,7 @@ nailgun-redhat-license \
 python-fuelclient \
 ruby21-rubygem-astute
 
-$(eval $(foreach pkg,$(fuel_rpm_packages),$(call build_rpm,$(pkg))$(NEWLINE)))
+$(eval $(foreach pkg,$(packages_list),$(call build_rpm,$(pkg))$(NEWLINE)))
 
 $(BUILD_DIR)/packages/rpm/repo.done:
 	find $(BUILD_DIR)/packages/rpm/RPMS -name '*.rpm' -exec cp -u {} $(LOCAL_MIRROR_CENTOS_OS_BASEURL)/Packages \;

repos.mk

@@ -1,4 +1,7 @@
-.PHONY: repos
+.PHONY: repos clean-repos
+
+clean-repos:
+	rm -rf $(BUILD_DIR)/repos
 
 repos: $(BUILD_DIR)/repos/repos.done