cmake: Read version from version.txt

As done with other KD* repos so we can use the automated release
tooling

Author: iamsergio

CMakeLists.txt

@@ -49,14 +49,15 @@ project(
     LANGUAGES CXX
 )
 
-set(${PROJECT_NAME}_VERSION_MAJOR 1)
-set(${PROJECT_NAME}_VERSION_MINOR 1)
-set(${PROJECT_NAME}_VERSION_PATCH 95)
-set(${PROJECT_NAME}_VERSION
-    ${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR}.${${PROJECT_NAME}_VERSION_PATCH}
-)
+file(STRINGS version.txt KDSA_VERSION_FILE)
+list(GET KDSA_VERSION_FILE 0 ${PROJECT_NAME}_VERSION)
+string(REPLACE "." ";" KDDW_VERSION_LIST "${KDSingleApplication_VERSION}")
+list(GET KDDW_VERSION_LIST 0 ${PROJECT_NAME}_VERSION_MAJOR)
+list(GET KDDW_VERSION_LIST 1 ${PROJECT_NAME}_VERSION_MINOR)
+list(GET KDDW_VERSION_LIST 2 ${PROJECT_NAME}_VERSION_PATCH)
+
 set(PROJECT_VERSION ${${PROJECT_NAME}_VERSION}) #PROJECT_VERSION is needed by some ECM modules
-set(${PROJECT_NAME}_SOVERSION "1.2")
+set(${PROJECT_NAME}_SOVERSION "1.2") # Do not bump unless needed, maybe move to single digit
 
 cmake_policy(SET CMP0020 NEW)
 cmake_policy(SET CMP0042 NEW)

version.txt

@@ -0,0 +1 @@
+1.2.0