Merge topic 'use-java-INCLUDE_JARS'

8a2fca8 UseJava.cmake: require explicit request to include jars

Modules/UseJava.cmake

@@ -3,11 +3,19 @@
 # has already been loaded.  See FindJava.cmake for information on how to
 # load Java into your CMake project.
 #
-# add_jar(TARGET_NAME SRC1 SRC2 .. SRCN RCS1 RCS2 .. RCSN)
-#
-# This command creates a <TARGET_NAME>.jar. It compiles the given source
-# files (SRC) and adds the given resource files (RCS) to the jar file.
-# If only resource files are given then just a jar file is created.
+# add_jar(target_name
+#         [SOURCES] source1 [source2 ...] [resource1 ...]
+#         [INCLUDE_JARS jar1 [jar2 ...]]
+#        )
+#
+# This command creates a <target_name>.jar. It compiles the given source files
+# (source) and adds the given resource files (resource) to the jar file. If
+# only resource files are given then just a jar file is created. The list of
+# include jars are added to the classpath when compiling the java sources and
+# also to the dependencies of the target. INCLUDE_JARS also accepts other
+# target names created by add_jar. For backwards compatibility, jar files
+# listed as sources are ignored (as they have been since the first version of
+# this module).
 #
 # Additional instructions:
 #   To add compile flags to the target you can set these flags with
@@ -190,6 +198,8 @@
 # (To distribute this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
+include(${CMAKE_CURRENT_LIST_DIR}/CMakeParseArguments.cmake)
+
 function (__java_copy_file src dest comment)
     add_custom_command(
         OUTPUT  ${dest}
@@ -205,7 +215,10 @@ set(_JAVA_CLASS_FILELIST_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/UseJavaClassFilelist.c
 set(_JAVA_SYMLINK_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/UseJavaSymlinks.cmake)
 
 function(add_jar _TARGET_NAME)
-    set(_JAVA_SOURCE_FILES ${ARGN})
+
+    cmake_parse_arguments(_add_jar "" "" "SOURCES;INCLUDE_JARS" ${ARGN})
+
+    set(_JAVA_SOURCE_FILES ${_add_jar_SOURCES} ${_add_jar_UNPARSED_ARGUMENTS})
 
     if (NOT DEFINED CMAKE_JAVA_TARGET_OUTPUT_DIR)
       set(CMAKE_JAVA_TARGET_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR})
@@ -265,14 +278,7 @@ function(add_jar _TARGET_NAME)
         get_filename_component(_JAVA_PATH ${_JAVA_SOURCE_FILE} PATH)
         get_filename_component(_JAVA_FULL ${_JAVA_SOURCE_FILE} ABSOLUTE)
 
-        if (TARGET ${_JAVA_SOURCE_FILE})
-            get_target_property(_JAVA_JAR_PATH ${_JAVA_SOURCE_FILE} JAR_FILE)
-            set(CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_PATH_FINAL}${CMAKE_JAVA_INCLUDE_FLAG_SEP}${_JAVA_JAR_PATH}")
-            list(APPEND CMAKE_JAVA_INCLUDE_PATH ${_JAVA_JAR_PATH})
-            list(APPEND _JAVA_DEPENDS ${_JAVA_SOURCE_FILE})
-            list(APPEND _JAVA_COMPILE_DEPENDS ${_JAVA_SOURCE_FILE})
-
-        elseif (_JAVA_EXT MATCHES ".java")
+        if (_JAVA_EXT MATCHES ".java")
             file(RELATIVE_PATH _JAVA_REL_BINARY_PATH ${CMAKE_JAVA_TARGET_OUTPUT_DIR} ${_JAVA_FULL})
             file(RELATIVE_PATH _JAVA_REL_SOURCE_PATH ${CMAKE_CURRENT_SOURCE_DIR} ${_JAVA_FULL})
             string(LENGTH ${_JAVA_REL_BINARY_PATH} _BIN_LEN)
@@ -292,10 +298,7 @@ function(add_jar _TARGET_NAME)
                 OR _JAVA_EXT MATCHES ".war"
                 OR _JAVA_EXT MATCHES ".ear"
                 OR _JAVA_EXT MATCHES ".sar")
-            set(CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_PATH_FINAL}${CMAKE_JAVA_INCLUDE_FLAG_SEP}${_JAVA_SOURCE_FILE}")
-            list(APPEND CMAKE_JAVA_INCLUDE_PATH ${_JAVA_SOURCE_FILE})
-            list(APPEND _JAVA_DEPENDS ${_JAVA_SOURCE_FILE})
-            list(APPEND _JAVA_COMPILE_DEPENDS ${_JAVA_SOURCE_FILE})
+            # Ignored for backward compatibility
 
         elseif (_JAVA_EXT STREQUAL "")
             list(APPEND CMAKE_JAVA_INCLUDE_PATH ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}} ${JAVA_JAR_TARGET_${_JAVA_SOURCE_FILE}_CLASSPATH})
@@ -309,6 +312,25 @@ function(add_jar _TARGET_NAME)
         endif ()
     endforeach()
 
+    foreach(_JAVA_INCLUDE_JAR ${_add_jar_INCLUDE_JARS})
+        if (TARGET ${_JAVA_INCLUDE_JAR})
+            get_target_property(_JAVA_JAR_PATH ${_JAVA_INCLUDE_JAR} JAR_FILE)
+            if (_JAVA_JAR_PATH)
+                set(CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_PATH_FINAL}${CMAKE_JAVA_INCLUDE_FLAG_SEP}${_JAVA_JAR_PATH}")
+                list(APPEND CMAKE_JAVA_INCLUDE_PATH ${_JAVA_JAR_PATH})
+                list(APPEND _JAVA_DEPENDS ${_JAVA_INCLUDE_JAR})
+                list(APPEND _JAVA_COMPILE_DEPENDS ${_JAVA_INCLUDE_JAR})
+            else ()
+                message(SEND_ERROR "add_jar: INCLUDE_JARS target ${_JAVA_INCLUDE_JAR} is not a jar")
+            endif ()
+        else ()
+            set(CMAKE_JAVA_INCLUDE_PATH_FINAL "${CMAKE_JAVA_INCLUDE_PATH_FINAL}${CMAKE_JAVA_INCLUDE_FLAG_SEP}${_JAVA_INCLUDE_JAR}")
+            list(APPEND CMAKE_JAVA_INCLUDE_PATH "${_JAVA_INCLUDE_JAR}")
+            list(APPEND _JAVA_DEPENDS "${_JAVA_INCLUDE_JAR}")
+            list(APPEND _JAVA_COMPILE_DEPENDS "${_JAVA_INCLUDE_JAR}")
+        endif ()
+    endforeach()
+
     # create an empty java_class_filelist
     if (NOT EXISTS ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_class_filelist)
         file(WRITE ${CMAKE_JAVA_CLASS_OUTPUT_PATH}/java_class_filelist "")