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# - Macros for generating a summary of enabled/disabled features
#
# This module provides the macros feature_summary(), set_package_info() and
# add_feature_info().
# For compatiblity it also still provides set_feature_info(),
# print_enabled_features() and print_disabled_features.
#
# These macros can be used to generate a summary of enabled and disabled
# packages and/or feature for a build tree:
#
# -- Enabled features:
# LibXml2 (required version >= 2.4) , XML processing library. , <http://xmlsoft.org>
# PNG , A PNG image library. , <http://www.libpng.org/pub/png/>
# -- Disabled features:
# Lua51 , The Lua scripting language. , <http://www.lua.org>
# Foo , Foo provides cool stuff.
#
#
# FEATURE_SUMMARY( [FILENAME <file>]
# [APPEND]
# [VAR <variable_name>]
# [DESCRIPTION "Found packages:"]
# WHAT (ALL | PACKAGES_FOUND | PACKAGES_NOT_FOUND
# | ENABLED_FEATURES | DISABLED_FEATURES]
# )
#
# The FEATURE_SUMMARY() macro can be used to print information about enabled
# or disabled features or packages of a project.
# By default, only the names of the features/packages will be printed and their
# required version when one was specified. Use SET_FEATURE_INFO() to add more
# useful information, like e.g. a download URL for the respective package.
#
# The WHAT option is the only mandatory option. Here you specify what information
# will be printed:
# ENABLED_FEATURES: the list of all features and packages which are enabled,
# excluding the QUIET packages
# DISABLED_FEATURES: the list of all features and packages which are disabled,
# excluding the QUIET packages
# PACKAGES_FOUND: the list of all packages which have been found
# PACKAGES_NOT_FOUND: the list of all packages which have not been found
# ALL: this will give all packages which have or have not been found
#
# If a FILENAME is given, the information is printed into this file. If APPEND
# is used, it is appended to this file, otherwise the file is overwritten if
# it already existed.
# If the VAR option is used, the information is "printed" into the specified
# variable.
# If FILENAME is not used, the information is printed to the terminal.
# Using the DESCRIPTION option a description or headline can be set which will
# be printed above the actual content.
#
# Example 1, append everything to a file:
# feature_summary(WHAT ALL
# FILENAME ${CMAKE_BINARY_DIR}/all.log APPEND)
#
# Example 2, print the enabled features into the variable enabledFeaturesText:
# feature_summary(WHAT ENABLED_FEATURES
# DESCRIPTION "Enabled Features:"
# VAR enabledFeaturesText)
# message(STATUS "${enabledFeaturesText}")
#
#
# SET_PACKAGE_INFO(<name> <description> [<url> [<comment>] ] )
# Use this macro to set up information about the named package, which can
# then be displayed via FEATURE_SUMMARY().
# This can be done either directly in the Find-module or in the project
# which uses the module after the FIND_PACKAGE() call.
# The features for which information can be set are added automatically by the
# find_package() command.
#
# Example for setting the info for a package:
# find_package(LibXml2)
# set_package_info(LibXml2 "XML processing library." "http://xmlsoft.org/")
#
#
# ADD_FEATURE_INFO(<name> <enabled> <description>)
# Use this macro to add information about a feature with the given <name>.
# <enabled> contains whether this feature is enabled or not, <description>
# is a text descibing the feature.
# The information can be displayed using feature_summary() for ENABLED_FEATURES
# and DISABLED_FEATURES respectively.
#
# Example for setting the info for a feature:
# option(WITH_FOO "Help for foo" ON)
# add_feature_info(Foo WITH_FOO "The Foo feature provides very cool stuff.")
#
#
# The following macros are provided for compatibility with previous CMake versions:
#
# PRINT_ENABLED_FEATURES()
# Does the same as FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
#
# PRINT_DISABLED_FEATURES()
# Does the same as FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
#
# SET_FEATURE_INFO(<name> <description> [<url> [<comment>] ] )
# Does the same as SET_PACKAGE_INFO(<name> <description> <url> <comment> )
#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
INCLUDE(CMakeParseArguments)
FUNCTION(ADD_FEATURE_INFO _name _enabled _desc)
IF (${_enabled})
SET_PROPERTY(GLOBAL APPEND PROPERTY ENABLED_FEATURES "${_name}")
ELSE ()
SET_PROPERTY(GLOBAL APPEND PROPERTY DISABLED_FEATURES "${_name}")
ENDIF ()
SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_desc}" )
ENDFUNCTION(SET_FEATURE_INFO)
FUNCTION(SET_FEATURE_INFO)
SET_PACKAGE_INFO(${ARGN})
ENDFUNCTION(SET_FEATURE_INFO)
FUNCTION(SET_PACKAGE_INFO _name _desc)
SET(_url "${ARGV2}")
SET(_comment "${ARGV3}")
SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_desc}" )
IF(_url MATCHES ".+")
SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_URL "${_url}" )
ENDIF(_url MATCHES ".+")
IF(_comment MATCHES ".+")
SET_PROPERTY(GLOBAL PROPERTY _CMAKE_${_name}_COMMENT "${_comment}" )
ENDIF(_comment MATCHES ".+")
ENDFUNCTION(SET_PACKAGE_INFO)
FUNCTION(_FS_GET_FEATURE_SUMMARY _property _var)
SET(_currentFeatureText "")
GET_PROPERTY(_EnabledFeatures GLOBAL PROPERTY ${_property})
FOREACH(_currentFeature ${_EnabledFeatures})
SET(_currentFeatureText "${_currentFeatureText}\n${_currentFeature}")
GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_REQUIRED_VERSION)
IF(_info)
SET(_currentFeatureText "${_currentFeatureText} (required version ${_info})")
ENDIF(_info)
GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_DESCRIPTION)
IF(_info)
SET(_currentFeatureText "${_currentFeatureText} , ${_info}")
ENDIF(_info)
GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_URL)
IF(_info)
SET(_currentFeatureText "${_currentFeatureText} , <${_info}>")
ENDIF(_info)
GET_PROPERTY(_info GLOBAL PROPERTY _CMAKE_${_currentFeature}_COMMENT)
IF(_info)
SET(_currentFeatureText "${_currentFeatureText} , ${_info}")
ENDIF(_info)
ENDFOREACH(_currentFeature)
SET(${_var} "${_currentFeatureText}" PARENT_SCOPE)
ENDFUNCTION(_FS_GET_FEATURE_SUMMARY)
FUNCTION(PRINT_ENABLED_FEATURES)
FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
ENDFUNCTION(PRINT_ENABLED_FEATURES)
FUNCTION(PRINT_DISABLED_FEATURES)
FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
ENDFUNCTION(PRINT_DISABLED_FEATURES)
FUNCTION(FEATURE_SUMMARY)
# CMAKE_PARSE_ARGUMENTS(<prefix> <options> <one_value_keywords> <multi_value_keywords> args...)
SET(options APPEND)
SET(oneValueArgs FILENAME VAR DESCRIPTION WHAT)
SET(multiValueArgs ) # none
CMAKE_PARSE_ARGUMENTS(_FS "${options}" "${oneValueArgs}" "${multiValueArgs}" ${_FIRST_ARG} ${ARGN})
IF(_FS_UNPARSED_ARGUMENTS)
MESSAGE(FATAL_ERROR "Unknown keywords given to FEATURE_SUMMARY(): \"${_FS_UNPARSED_ARGUMENTS}\"")
ENDIF(_FS_UNPARSED_ARGUMENTS)
IF(NOT _FS_WHAT)
MESSAGE(FATAL_ERROR "The call to FEATURE_SUMMAY() doesn't set the required WHAT argument.")
ENDIF(NOT _FS_WHAT)
IF( "${_FS_WHAT}" STREQUAL "ENABLED_FEATURES"
OR "${_FS_WHAT}" STREQUAL "DISABLED_FEATURES"
OR "${_FS_WHAT}" STREQUAL "PACKAGES_FOUND"
OR "${_FS_WHAT}" STREQUAL "PACKAGES_NOT_FOUND")
_FS_GET_FEATURE_SUMMARY( ${_FS_WHAT} _featureSummary)
SET(_fullText "${_FS_DESCRIPTION}${_featureSummary}\n")
ELSEIF("${_FS_WHAT}" STREQUAL "ALL")
_FS_GET_FEATURE_SUMMARY( PACKAGES_FOUND _tmp1)
_FS_GET_FEATURE_SUMMARY( PACKAGES_NOT_FOUND _tmp2)
SET(_featureSummary "${_tmp1}${_tmp2}")
IF(_FS_DESCRIPTION)
SET(_fullText "${_FS_DESCRIPTION}${_tmp1}${_tmp2}\n")
ELSE(_FS_DESCRIPTION)
SET(_fullText "-- Found the following packages:${_tmp1}\n-- Did not find the following packages:${_tmp2}\n")
ENDIF(_FS_DESCRIPTION)
ELSE()
MESSAGE(FATAL_ERROR "The WHAT argument of FEATURE_SUMMARY() is set to ${_FS_WHAT}, which is not a valid value.")
ENDIF()
IF(_FS_FILENAME)
IF(_FS_APPEND)
FILE(APPEND "${_FS_FILENAME}" "${_fullText}")
ELSE(_FS_APPEND)
FILE(WRITE "${_FS_FILENAME}" "${_fullText}")
ENDIF(_FS_APPEND)
ELSE(_FS_FILENAME)
IF(NOT _FS_VAR)
MESSAGE(STATUS "${_fullText}")
ENDIF(NOT _FS_VAR)
ENDIF(_FS_FILENAME)
IF(_FS_VAR)
SET(${_FS_VAR} "${_fullText}" PARENT_SCOPE)
ENDIF(_FS_VAR)
ENDFUNCTION(FEATURE_SUMMARY)
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