From 5341c0d84af50c2ac5e4041885ab96f8d157ddfe Mon Sep 17 00:00:00 2001 From: Matthew Woehlke Date: Mon, 9 May 2016 14:59:58 -0400 Subject: UseJava: Add infrastructure to export targets Add additional functions to UseJava.cmake to create "exported" targets, similar to those of C/C++ libraries. In support of this, ensure that the JAR_FILE property of jar targets is always an absolute path. --- Modules/UseJava.cmake | 153 +++++++++++++++++++++++++++++++++++++++++++ Modules/javaTargets.cmake.in | 39 +++++++++++ 2 files changed, 192 insertions(+) create mode 100644 Modules/javaTargets.cmake.in diff --git a/Modules/UseJava.cmake b/Modules/UseJava.cmake index 7b3416e..6644bd4 100644 --- a/Modules/UseJava.cmake +++ b/Modules/UseJava.cmake @@ -217,6 +217,19 @@ # This command installs the TARGET_NAME files to the given DESTINATION. # It should be called in the same scope as add_jar() or it will fail. # +# Target Properties: +# +# :: +# +# The install_jar() function sets the INSTALL_DESTINATION target property +# on jars so installed. This property holds the DESTINATION as described +# above, and is used by install_jar_exports(). You can get this property +# with the +# get_property(TARGET PROPERTY INSTALL_DESTINATION) +# command. +# +# +# # :: # # install_jni_symlink(target_name destination) @@ -228,6 +241,24 @@ # # :: # +# install_jar_exports(TARGETS jar1 [jar2 ...] +# FILE export_filename +# DESTINATION destination [COMPONENT component]) +# +# This command installs a target export file export_filename for the named jar +# targets to the given DESTINATION. Its function is similar to that of +# install(EXPORTS). +# +# :: +# +# export_jars(TARGETS jar1 [jar2 ...] +# FILE export_filename) +# +# This command writes a target export file export_filename for the named jar +# targets. Its function is similar to that of export(). +# +# :: +# # create_javadoc( # PACKAGES pkg1 [pkg2 ...] # [SOURCEPATH ] @@ -396,7 +427,29 @@ function (__java_copy_file src dest comment) COMMENT ${comment}) endfunction () +function(__java_lcat VAR) + foreach(_line ${ARGN}) + set(${VAR} "${${VAR}}${_line}\n") + endforeach() + + set(${VAR} "${${VAR}}" PARENT_SCOPE) +endfunction() + +function(__java_export_jar VAR TARGET PATH) + get_target_property(_jarpath ${TARGET} JAR_FILE) + get_filename_component(_jarname ${_jarpath} NAME) + __java_lcat(${VAR} + "# Create imported target ${TARGET}" + "add_custom_target(${TARGET})" + "set_target_properties(${TARGET} PROPERTIES" + " JAR_FILE \"${PATH}/${_jarname}\")" + "" + ) + set(${VAR} "${${VAR}}" PARENT_SCOPE) +endfunction() + # define helper scripts +set(_JAVA_EXPORT_TARGETS_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/javaTargets.cmake.in) set(_JAVA_CLASS_FILELIST_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/UseJavaClassFilelist.cmake) set(_JAVA_SYMLINK_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/UseJavaSymlinks.cmake) @@ -435,6 +488,8 @@ function(add_jar _TARGET_NAME) if (NOT DEFINED _add_jar_OUTPUT_DIR) set(_add_jar_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}) + else() + get_filename_component(_add_jar_OUTPUT_DIR ${_add_jar_OUTPUT_DIR} ABSOLUTE) endif() if (_add_jar_ENTRY_POINT) @@ -716,6 +771,13 @@ function(INSTALL_JAR _TARGET_NAME) PROPERTY INSTALL_FILES ) + set_property( + TARGET + ${_TARGET_NAME} + PROPERTY + INSTALL_DESTINATION + ${_DESTINATION} + ) if (__FILES) install( @@ -1288,3 +1350,94 @@ function (create_javah) set (${_create_javah_GENERATED_FILES} ${_output_files} PARENT_SCOPE) endif() endfunction() + +function(export_jars) + # Parse and validate arguments + cmake_parse_arguments(_export_jars + "" + "FILE" + "TARGETS" + ${ARGN} + ) + if (NOT _export_jars_FILE) + message(SEND_ERROR "export_jars: FILE must be specified.") + endif() + if (NOT _export_jars_TARGETS) + message(SEND_ERROR "export_jars: TARGETS must be specified.") + endif() + + # Set content of generated exports file + string(REPLACE ";" " " __targets__ "${_export_jars_TARGETS}") + set(__targetdefs__ "") + foreach(_target ${_export_jars_TARGETS}) + get_target_property(_jarpath ${_target} JAR_FILE) + get_filename_component(_jarpath ${_jarpath} PATH) + __java_export_jar(__targetdefs__ ${_target} "${_jarpath}") + endforeach() + + # Generate exports file + configure_file( + ${_JAVA_EXPORT_TARGETS_SCRIPT} + ${_export_jars_FILE} + @ONLY + ) +endfunction() + +function(install_jar_exports) + # Parse and validate arguments + cmake_parse_arguments(_install_jar_exports + "" + "FILE;DESTINATION;COMPONENT" + "TARGETS" + ${ARGN} + ) + if (NOT _install_jar_exports_FILE) + message(SEND_ERROR "install_jar_exports: FILE must be specified.") + endif() + if (NOT _install_jar_exports_DESTINATION) + message(SEND_ERROR "install_jar_exports: DESTINATION must be specified.") + endif() + if (NOT _install_jar_exports_TARGETS) + message(SEND_ERROR "install_jar_exports: TARGETS must be specified.") + endif() + + if (_install_jar_exports_COMPONENT) + set (_COMPONENT COMPONENT ${_install_jar_exports_COMPONENT}) + endif() + + # Determine relative path from installed export file to install prefix + if(IS_ABSOLUTE ${_install_jar_exports_DESTINATION}) + file(RELATIVE_PATH _relpath + ${_install_jar_exports_DESTINATION} + ${CMAKE_INSTALL_PREFIX} + ) + else() + file(RELATIVE_PATH _relpath + ${CMAKE_INSTALL_PREFIX}/${_install_jar_exports_DESTINATION} + ${CMAKE_INSTALL_PREFIX} + ) + endif() + + # Set up unique location for generated exports file + string(SHA256 _hash "${_install_jar_exports_DESTINATION}") + set(_tmpdir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/JavaExports/${_hash}) + + # Set content of generated exports file + string(REPLACE ";" " " __targets__ "${_install_jar_exports_TARGETS}") + set(__targetdefs__ "set(_prefix \${CMAKE_CURRENT_LIST_DIR}/${_relpath})\n\n") + foreach(_target ${_install_jar_exports_TARGETS}) + get_target_property(_dir ${_target} INSTALL_DESTINATION) + __java_export_jar(__targetdefs__ ${_target} "\${_prefix}/${_dir}") + endforeach() + __java_lcat(__targetdefs__ "\nunset(_prefix)") + + # Generate and install exports file + configure_file( + ${_JAVA_EXPORT_TARGETS_SCRIPT} + ${_tmpdir}/${_install_jar_exports_FILE} + @ONLY + ) + install(FILES ${_tmpdir}/${_install_jar_exports_FILE} + DESTINATION ${_install_jar_exports_DESTINATION} + ${_COMPONENT}) +endfunction() diff --git a/Modules/javaTargets.cmake.in b/Modules/javaTargets.cmake.in new file mode 100644 index 0000000..c5f9c78 --- /dev/null +++ b/Modules/javaTargets.cmake.in @@ -0,0 +1,39 @@ +cmake_minimum_required(VERSION 2.8) +cmake_policy(PUSH) +cmake_policy(VERSION 2.8) + +#---------------------------------------------------------------- +# Generated CMake Java target import file. +#---------------------------------------------------------------- + +# Protect against multiple inclusion, which would fail when already imported targets are added once more. +set(_targetsDefined) +set(_targetsNotDefined) +set(_expectedTargets) +foreach(_expectedTarget @__targets__@) + list(APPEND _expectedTargets ${_expectedTarget}) + if(TARGET ${_expectedTarget}) + list(APPEND _targetsDefined ${_expectedTarget}) + else() + list(APPEND _targetsNotDefined ${_expectedTarget}) + endif() +endforeach() +if("%${_targetsDefined}" STREQUAL "%${_expectedTargets}") + unset(_targetsDefined) + unset(_targetsNotDefined) + unset(_expectedTargets) + cmake_policy(POP) + return() +endif() +if(NOT "${_targetsDefined}" STREQUAL "") + message(FATAL_ERROR + "Some (but not all) targets in this export set were already defined.\n" + "Targets Defined: ${_targetsDefined}\n" + "Targets not yet defined: ${_targetsNotDefined}\n") +endif() +unset(_targetsDefined) +unset(_targetsNotDefined) +unset(_expectedTargets) + +@__targetdefs__@ +cmake_policy(POP) -- cgit v0.12