make: allow optional extra tags when running unit tests

Makefile

@@ -43,8 +43,6 @@ GOTEST := GO111MODULE=on go test
 
 GOVERSION := $(shell go version | awk '{print $$3}')
 GOFILES_NOVENDOR = $(shell find . -type f -name '*.go' -not -path "./vendor/*")
-GOLIST := go list -deps $(PKG)/... | grep '$(PKG)'| grep -v '/vendor/'
-GOLISTCOVER := $(shell go list -deps -f '{{.ImportPath}}' ./... | grep '$(PKG)' | sed -e 's/^$(ESCPKG)/./')
 
 RM := rm -f
 CP := cp

make/testing_flags.mk

@@ -28,6 +28,10 @@ ifneq ($(icase),)
 TEST_FLAGS += -test.run=TestLightningNetworkDaemon/$(icase)
 endif
 
+ifneq ($(tags),)
+DEV_TAGS += ${tags}
+endif
+
 # Define the log tags that will be applied only when running unit tests. If none
 # are provided, we default to "nolog" which will be silent.
 ifneq ($(log),)
@@ -44,6 +48,9 @@ else
 TEST_FLAGS += -test.timeout=40m
 endif
 
+GOLIST := go list -tags="$(DEV_TAGS)" -deps $(PKG)/... | grep '$(PKG)'| grep -v '/vendor/'
+GOLISTCOVER := $(shell go list -tags="$(DEV_TAGS)" -deps -f '{{.ImportPath}}' ./... | grep '$(PKG)' | sed -e 's/^$(ESCPKG)/./')
+
 # UNIT_TARGTED is undefined iff a specific package and/or unit test case is
 # not being targeted.
 UNIT_TARGETED ?= no