[CMake] Adds support for node mode with flag CLAVA_NODE

CMake/ClavaConfig.cmake

@@ -24,6 +24,12 @@ find_package(Java COMPONENTS Runtime REQUIRED)
 set(CLAVA_CMAKE_HOME ${CMAKE_CURRENT_LIST_DIR})
 message(STATUS "Clava home: ${CLAVA_CMAKE_HOME}")
 
+# Check if Node mode. If so, LOCAL_CLAVA becomes 'npx clava classic'
+if(DEFINED CLAVA_NODE AND CLAVA_NODE)
+	message(STATUS "Enabling Clava Node mode")
+	set(LOCAL_CLAVA "npx clava classic")
+endif()
+
 # Check if installation file with JAR path exists
 if(LOCAL_CLAVA)
 

CMake/clava/ClavaWeave.cmake

@@ -14,6 +14,46 @@ function(clava_weave ORIG_TARGET ASPECT)
     set(options)
     set(oneValueArgs ARGS)
     set(multiValueArgs FLAGS JAVA_FLAGS)
+
+	# Setup Clava Node mode, if enabled
+	if(DEFINED CLAVA_NODE AND CLAVA_NODE)
+		get_filename_component(aspectAbsolutePath "${ASPECT}" ABSOLUTE)	
+		get_filename_component(aspectParentDir "${aspectAbsolutePath}" DIRECTORY)
+
+		# If package.json does not exist, create a default one
+		if(NOT EXISTS "${aspectParentDir}/package.json")
+			message(STATUS "Clava Node: Creating default package.json")
+			set(jsonContents "{\n  \"type\": \"module\",\n  \"dependencies\": {\n    \"@specs-feup/clava\": \"^3.0.1\",\n    \"@specs-feup/lara\": \"^3.0.2\"\n  }\n}\n")			
+
+			file(WRITE "${aspectParentDir}/package.json" "${jsonContents}")
+		endif()		
+
+		# If node_modules does not exist, call npm install
+		if(NOT EXISTS "${aspectParentDir}/node_modules")
+			message(STATUS "Clava Node: installing node packages")
+
+			if(WIN32)
+				set(NPM_CMD "npm.cmd")
+			else()
+				set(NPM_CMD "npm")			
+			endif()
+
+			execute_process(COMMAND ${NPM_CMD} install
+				WORKING_DIRECTORY "${aspectParentDir}"
+				OUTPUT_VARIABLE NPM_OUTPUT
+				ERROR_VARIABLE NPM_ERROR
+				RESULT_VARIABLE NPM_RESULT				
+			)	
+
+
+			if(${NPM_RESULT} STREQUAL "0")
+				message(STATUS "${NPM_OUTPUT}")
+			else()
+				message(STATUS "npm install error: ${NPM_ERROR}")				
+			endif()
+
+		endif()
+	endif()
 
     cmake_parse_arguments(PARSE_ARGV 2 CLAVA_WEAVE "${options}" "${oneValueArgs}" "${multiValueArgs}")