Allow to build nymead using custom version independent from dpkg

debian/rules

@@ -26,6 +26,9 @@ endif
 DPKG_EXPORT_BUILDFLAGS = 1
 DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
 
+NYMEA_DPKG_VERSION := $(shell dpkg-parsechangelog -SVersion)
+QMAKE_ADDITIONAL_ARGS += NYMEA_VERSION=$(NYMEA_DPKG_VERSION)
+
 include /usr/share/dpkg/buildflags.mk
 
 PREPROCESS_FILES := $(wildcard debian/*.in)
@@ -34,7 +37,7 @@ $(PREPROCESS_FILES:.in=): %: %.in
 	sed 's,/@DEB_HOST_MULTIARCH@,$(DEB_HOST_MULTIARCH:%=/%),g' $< > $@
 
 override_dh_auto_configure:
-	dh_auto_configure -- "$(QMAKE_ADDITIONAL_ARGS)"
+	dh_auto_configure -- $(QMAKE_ADDITIONAL_ARGS)
 
 override_dh_auto_build:
 	make -j$(DEB_PARALLEL_JOBS) $(MAKE_TARGETS)

nymea.pro

@@ -1,7 +1,13 @@
 include(nymea.pri)
 
 # Parse and export NYMEA_VERSION_STRING
-NYMEA_VERSION_STRING=$$system('dpkg-parsechangelog | sed -n -e "s/^Version: //p"')
+isEmpty(NYMEA_VERSION) {
+    NYMEA_VERSION_STRING='development'
+    message("The variable NYMEA_VERSION is unset. Using \"$${NYMEA_VERSION_STRING}\" as default version.")
+} else {
+    # qmake NYMEA_VERSION=1.x.x-custom
+    NYMEA_VERSION_STRING="$${NYMEA_VERSION}"
+}
 
 # define protocol versions
 JSON_PROTOCOL_VERSION_MAJOR=8
@@ -14,7 +20,6 @@ LIBNYMEA_API_VERSION="$${LIBNYMEA_API_VERSION_MAJOR}.$${LIBNYMEA_API_VERSION_MIN
 
 QMAKE_SUBSTITUTES += version.h.in
 
-
 TEMPLATE=subdirs
 
 piconly {