CMake/Modules/FeatureSummary.cmake

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# - Macros for generating a summary of enabled/disabled features
#
# PRINT_ENABLED_FEATURES()
# Print a summary of all enabled features. By default all successfull
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# FIND_PACKAGE() calls will appear here, except the ones which used the
# QUIET keyword. Additional features can be added by appending an entry
# to the global ENABLED_FEATURES property. If SET_FEATURE_INFO() is
# used for that feature, the output will be much more informative.
#
# PRINT_DISABLED_FEATURES()
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# Same as PRINT_ENABLED_FEATURES(), but for disabled features. It can
# be extended the same way by adding to the global property
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# DISABLED_FEATURES.
#
# SET_FEATURE_INFO(NAME DESCRIPTION [URL [COMMENT] ] )
# Use this macro to set up information about the named feature, which will
# then be displayed by PRINT_ENABLED/DISABLED_FEATURES().
# Example: SET_FEATURE_INFO(LibXml2 "XML processing library."
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# "http://xmlsoft.org/")
#
#=============================================================================
# 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(SET_FEATURE_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_FEATURE_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} "${_currentFeatureText}" PARENT_SCOPE)
ENDFUNCTION(_FS_GET_FEATURE_SUMMARY)
FUNCTION(PRINT_ENABLED_FEATURES)
FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
ENDFUNCTION(PRINT_ENABLED_FEATURES)
FUNCTION(PRINT_DISABLED_FEATURES)
FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
ENDFUNCTION(PRINT_DISABLED_FEATURES)
# feature_summary(FILENAME foo.log
# APPEND TRUE
# VAR <variable_name>
# DESCRIPTION "Found packages:"
# WHAT [ALL PACKAGES_FOUND PACKAGES_NOT_FOUND ENABLED_FEATURES DISABLED_FEATURES]
# )
FUNCTION(FEATURE_SUMMARY)
# CMAKE_PARSE_ARGUMENTS(<prefix> <options> <one_value_keywords> <multi_value_keywords> args...)
SET(options APPEND)
SET(oneValueArgs FILENAME VAR DESCRIPTION WHAT)
SET(multiValueArgs ) # none
CMAKE_PARSE_ARGUMENTS(_FS "${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( ${_FS_WHAT} _featureSummary)
ELSEIF("${_FS_WHAT}" STREQUAL "ALL")
_FS_GET_FEATURE_SUMMARY( PACKAGES_FOUND _tmp1)
_FS_GET_FEATURE_SUMMARY( PACKAGES_NOT_FOUND _tmp2)
SET(_featureSummary "${_tmp1}${_tmp2}")
ELSE()
MESSAGE(FATAL_ERROR "The WHAT argument of FEATURE_SUMMARY() is set to ${_FS_WHAT}, which is not a valid value.")
ENDIF()
SET(_fullText "${_FS_DESCRIPTION}${_featureSummary}\n")
IF(_FS_FILENAME)
IF(_FS_APPEND)
FILE(WRITE "${_FS_FILENAME}" "${_fullText}")
ELSE(_FS_APPEND)
FILE(APPEND "${_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)