Changed CMakeLists so that protobuf files are generated automatically…

… on project opening and only are generated if api.proto is changed (which leads to much faster build times on the pi)

.gitignore

@@ -37,3 +37,6 @@ cmake-build-*/**
 
 # protobuf build dir
 protobuf/**
+
+# CLion Files
+.idea/**

CMakeLists.txt

@@ -3,6 +3,14 @@ project(self_o_mat)
 
 set(CMAKE_CXX_STANDARD 14)
 
+# Generate protobuf files on file change
+add_custom_command(OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/protobuf/api.pb.cc ${CMAKE_CURRENT_SOURCE_DIR}/protobuf/api.pb.h
+        DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/api.proto
+        COMMAND /bin/sh ${CMAKE_CURRENT_SOURCE_DIR}/compile_protobuf.sh
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+
+
+
 find_package(OpenCV REQUIRED)
 find_package(Boost REQUIRED COMPONENTS system thread filesystem)
 find_package(Cups REQUIRED)
@@ -48,9 +56,4 @@ endif()
 
 
 
-add_custom_target( compile_protobuf
-        COMMAND /bin/sh ${CMAKE_CURRENT_SOURCE_DIR}/compile_protobuf.sh
-        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-)
-
 #add_dependencies(self_o_mat compile_protobuf)