From 0186c04abe93b61106c1fba50eec753f37fbddbf Mon Sep 17 00:00:00 2001
From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Mon, 17 May 2010 16:14:47 +0000
Subject: [PATCH] Rebuild the jar file only on need. The examples are still
 always rebuilt on make all, but they are smaller and the jar was rebuilt even
 on make simgrid

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@7754 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---
 buildtools/Cmake/src/CMakeJarAndClass.txt | 98 +++++++++++------------
 1 file changed, 47 insertions(+), 51 deletions(-)

diff --git a/buildtools/Cmake/src/CMakeJarAndClass.txt b/buildtools/Cmake/src/CMakeJarAndClass.txt
index 2a2294b17f..2e90f9c681 100644
--- a/buildtools/Cmake/src/CMakeJarAndClass.txt
+++ b/buildtools/Cmake/src/CMakeJarAndClass.txt
@@ -1,53 +1,49 @@
-	set(JMSG_JAVA_SRC_CLASS ${JMSG_JAVA_SRC})
-	string(REPLACE "${PROJECT_DIRECTORY}/src/java/simgrid/msg" "${PROJECT_DIRECTORY}/src/.classes/simgrid/msg" JMSG_JAVA_SRC_CLASS ${JMSG_JAVA_SRC_CLASS})
-	string(REPLACE ".java" ".class;" JMSG_JAVA_SRC_CLASS ${JMSG_JAVA_SRC_CLASS})
-	set(java_src_to_compile "")	
-	
-	file(MAKE_DIRECTORY "${PROJECT_DIRECTORY}/src/.classes")
-	file(MAKE_DIRECTORY "${PROJECT_DIRECTORY}/src/.classes/surf")
-	configure_file("${PROJECT_DIRECTORY}/src/surf/simgrid.dtd" "${PROJECT_DIRECTORY}/src/.classes/surf/simgrid.dtd" COPY_ONLY)
-	
-	set(CMAKE_JAVA_COMPILER "${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/src/.classes -cp ${PROJECT_DIRECTORY}/src/.classes")
-	SET(CMAKE_JAVA_LINK_EXECUTABLE "${JAVA_ARCHIVE} -cvf ${PROJECT_DIRECTORY}/src/simgrid.jar -C ${PROJECT_DIRECTORY}/src/.classes .")
-		
-	foreach(file ${JMSG_JAVA_SRC_CLASS})
-		if(NOT EXISTS ${file})
-			string(REPLACE "${PROJECT_DIRECTORY}/src/.classes/simgrid/msg" "${PROJECT_DIRECTORY}/src/java/simgrid/msg" file ${file})
-			string(REPLACE ".class" ".java" file ${file})
-			set(java_src_to_compile "${java_src_to_compile}${file}\t")
-		endif(NOT EXISTS ${file})
-	endforeach(file ${JMSG_JAVA_SRC_CLASS})
-	
-	add_executable(simgrid.jar ${JMSG_JAVA_SRC})
-	set_target_properties(simgrid.jar PROPERTIES LANGUAGE JAVA)
-	set_target_properties(simgrid.jar PROPERTIES LINKER_LANGUAGE JAVA)
+#SET(CMAKE_VERBOSE_MAKEFILE 1)
 
-	if(java_src_to_compile)	
-		ADD_CUSTOM_COMMAND(TARGET simgrid.jar
-		PRE_BUILD
-		COMMAND ${JAVA_COMPILE}
-		ARGS -d ${PROJECT_DIRECTORY}/src/.classes -cp ${PROJECT_DIRECTORY}/src/.classes ${java_src_to_compile}
-		)
-	endif(java_src_to_compile)
-	
+set(JAVA_FILES ${JMSG_JAVA_SRC})
+set(JAVA_CLASSES ${JAVA_FILES})
+string(REPLACE "${PROJECT_DIRECTORY}/src/java/simgrid/msg" "${CMAKE_CURRENT_BINARY_DIR}/classes/simgrid/msg"
+               JAVA_CLASSES "${JAVA_CLASSES}")
+string(REPLACE ".java" ".class;" 
+               JAVA_CLASSES "${JAVA_CLASSES}")
+	       
 
-	ADD_CUSTOM_TARGET(java_basic ALL
-	COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/basic -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/basic/*.java
-	)
-	
-	ADD_CUSTOM_TARGET(java_ping_pong ALL
-	COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/ping_pong -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/ping_pong/*.java
-	)
-	
-	ADD_CUSTOM_TARGET(java_comm_time ALL
-	COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/comm_time -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/comm_time/*.java
-	)
-	
-	ADD_CUSTOM_TARGET(java_suspend ALL
-	COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/suspend -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/suspend/*.java
-	)
-	
-	add_dependencies(java_basic simgrid.jar)
-	add_dependencies(java_ping_pong simgrid.jar)
-	add_dependencies(java_comm_time simgrid.jar)
-	add_dependencies(java_suspend simgrid.jar)
\ No newline at end of file
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/classes/")
+
+# compile all .java files with javac to .class
+ADD_CUSTOM_COMMAND(
+  OUTPUT ${JAVA_CLASSES}
+  DEPENDS ${JAVA_FILES}
+  COMMAND ${JAVA_COMPILE} -d ${CMAKE_CURRENT_BINARY_DIR}/classes/
+                          -cp ${CMAKE_CURRENT_BINARY_DIR}/classes/
+			  ${JAVA_FILES}
+  COMMENT "Compiling java sources of core library..."
+)
+
+ADD_CUSTOM_COMMAND(
+  OUTPUT ${PROJECT_DIRECTORY}/src/simgrid.jar
+  DEPENDS ${JAVA_CLASSES}
+  WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/classes  
+  COMMAND ${JAVA_ARCHIVE} -cvf ${PROJECT_DIRECTORY}/src/simgrid.jar .
+  COMMENT "Building simgrid.jar..."
+)
+
+ADD_CUSTOM_TARGET(java_basic ALL
+  COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/basic -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/basic/*.java
+  DEPENDS ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/basic/*.java
+)
+	
+ADD_CUSTOM_TARGET(java_ping_pong ALL
+  COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/ping_pong -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/ping_pong/*.java
+  DEPENDS ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/ping_pong/*.java
+)
+	
+ADD_CUSTOM_TARGET(java_comm_time ALL
+  COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/comm_time -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/comm_time/*.java
+  DEPENDS ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/comm_time/*.java
+)
+	
+ADD_CUSTOM_TARGET(java_suspend ALL
+  COMMAND ${JAVA_COMPILE} -d ${PROJECT_DIRECTORY}/examples/java/suspend -cp ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/suspend/*.java
+  DEPENDS ${PROJECT_DIRECTORY}/src/simgrid.jar ${PROJECT_DIRECTORY}/examples/java/suspend/*.java
+)
-- 
2.20.1