feat: Add plugin targets to CMakeLists.txt

CMakeLists.txt

@@ -119,22 +119,18 @@ include_directories(${gcem_SOURCE_DIR}/include)
 include_directories(${stats_SOURCE_DIR}/include)
 include_directories(${eigen_SOURCE_DIR})
 
-# TARGETS ######################################################################
-add_plugin(echoj)
-add_plugin(clock)
-add_plugin(to_console)
-add_plugin(random)
-add_plugin(running_avg)
-if(NOT WIN32 AND NOT MADS_NO_DEPS_ONLY)
-  # Serial port plugin is not supported on Windows
-  add_plugin(serial_reader SRCS ${SRC_DIR}/serialport.cpp)
-  add_plugin(mqtt LIBS mosquittopp)
-endif()
-
 add_loader(load_filter)
 add_loader(load_source)
 add_loader(load_sink)
 
+# These plugins are always build and use for testing
+add_plugin(echoj)
+add_plugin(clock)
+
+# DO NOT ADD PLUGINS HERE; USE add_plugin() MACRO IN THE 
+# src/plugin/CMakeLists.txt FILE INSTEAD
+include_directories(${SRC_DIR}/plugin)
+
 
 # INSTALL ######################################################################
 if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)

src/plugin/CMakeLists.txt

@@ -0,0 +1,35 @@
+#   ____  _             _         _                       _       
+#  |  _ \| |_   _  __ _(_)_ __   | |_ __ _ _ __ __ _  ___| |_ ___ 
+#  | |_) | | | | |/ _` | | '_ \  | __/ _` | '__/ _` |/ _ \ __/ __|
+#  |  __/| | |_| | (_| | | | | | | || (_| | | | (_| |  __/ |_\__ \
+#  |_|   |_|\__,_|\__, |_|_| |_|  \__\__,_|_|  \__, |\___|\__|___/
+#                 |___/                        |___/              
+
+# Add plugin targets here
+# Use the syntax: 
+#   add_plugin(<plugin_name> [SRCS <source_files>] [LIBS <libraries>])
+# If the plugin has only one source file, that is the plugin_name.cpp file, 
+# you can omit the SRCS argument:
+#   add_plugin(plugin_name)
+# Use the SRCS argument to specify additional source files.
+# Use the LIBS argument to specify additional libraries that the plugin 
+# depends on.
+
+# PLUGINS ######################################################################
+# These plugins are built unconditionally.
+
+add_plugin(to_console)
+add_plugin(random)
+add_plugin(running_avg)
+
+
+# CONDITIONAL PLUGINS ##########################################################
+# These plugins are only built if the required dependencies are available.
+
+if(NOT MADS_NO_DEPS_ONLY)
+  if(NOT WIN32)
+    # Serial port plugin is not supported on Windows
+    add_plugin(serial_reader SRCS ${SRC_DIR}/serialport.cpp)
+  endif()
+  add_plugin(mqtt LIBS mosquittopp)
+endif()