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Java: Added some dependency magic to avoid recompilations. 

Compile java sources within a custom_command using automatically checked
file dependencies and create java_class_filelist after java compile.

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Oliver Buchtala 2011-04-03 00:26:17 +02:00 committed by Andreas Schneider
parent f3233ba521
commit f99c3120c9
1 changed files with 10 additions and 2 deletions
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12
Modules/UseJava.cmake
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@ -295,18 +295,26 @@ function(add_jar _TARGET_NAME)
if (_JAVA_COMPILE_FILES) if (_JAVA_COMPILE_FILES)
# Compile the java files and create a list of class files # Compile the java files and create a list of class files
add_custom_command( add_custom_command(
TARGET ${_TARGET_NAME} # NOTE: this command generates an artificial dependency file
OUTPUT ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_compiled_${_TARGET_NAME}
COMMAND ${Java_JAVAC_EXECUTABLE} COMMAND ${Java_JAVAC_EXECUTABLE}
${CMAKE_JAVA_COMPILE_FLAGS} ${CMAKE_JAVA_COMPILE_FLAGS}
-classpath "${CMAKE_JAVA_INCLUDE_PATH_FINAL}" -classpath "${CMAKE_JAVA_INCLUDE_PATH_FINAL}"
-d ${CMAKE_JAVA_CLASS_OUTPUT_PATH} -d ${CMAKE_JAVA_CLASS_OUTPUT_PATH}
${_JAVA_COMPILE_FILES} ${_JAVA_COMPILE_FILES}
COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_compiled_${_TARGET_NAME}
DEPENDS ${_JAVA_COMPILE_FILES}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Building Java objects for ${_TARGET_NAME}.jar"
)
add_custom_command(
OUTPUT ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_class_filelist
COMMAND ${CMAKE_COMMAND} COMMAND ${CMAKE_COMMAND}
-DCMAKE_JAVA_CLASS_OUTPUT_PATH=${CMAKE_JAVA_CLASS_OUTPUT_PATH} -DCMAKE_JAVA_CLASS_OUTPUT_PATH=${CMAKE_JAVA_CLASS_OUTPUT_PATH}
-DCMAKE_JAR_CLASSES_PREFIX="${CMAKE_JAR_CLASSES_PREFIX}" -DCMAKE_JAR_CLASSES_PREFIX="${CMAKE_JAR_CLASSES_PREFIX}"
-P ${_JAVA_CLASS_FILELIST_SCRIPT} -P ${_JAVA_CLASS_FILELIST_SCRIPT}
DEPENDS ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_compiled_${_TARGET_NAME}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Building Java objects for ${_TARGET_NAME}.jar"
) )
endif (_JAVA_COMPILE_FILES) endif (_JAVA_COMPILE_FILES)