diff options
Diffstat (limited to 'cmake/QtCMakeHelpers.cmake')
| -rw-r--r-- | cmake/QtCMakeHelpers.cmake | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/cmake/QtCMakeHelpers.cmake b/cmake/QtCMakeHelpers.cmake index d1d4fb9054..142a003cbc 100644 --- a/cmake/QtCMakeHelpers.cmake +++ b/cmake/QtCMakeHelpers.cmake @@ -1,18 +1,19 @@ -# qt_configure_file(OUTPUT output-file <INPUT input-file | CONTENT content>) -# input-file is relative to ${CMAKE_CURRENT_SOURCE_DIR} -# output-file is relative to ${CMAKE_CURRENT_BINARY_DIR} -# -# This function is similar to file(GENERATE OUTPUT) except it writes the content -# to the file at configure time, rather than at generate time. Once CMake 3.18 is released, it can use file(CONFIGURE) in its implmenetation. Until then, it -# uses configure_file() with a generic input file as source, when used with the CONTENT signature. -function(qt_configure_file) - qt_parse_all_arguments(arg "qt_configure_file" "" "OUTPUT;INPUT;CONTENT" "" ${ARGN}) +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: BSD-3-Clause +# The common implementation of qt_configure_file functionality. +macro(qt_configure_file_impl) if(NOT arg_OUTPUT) message(FATAL_ERROR "No output file provided to qt_configure_file.") endif() - if(arg_CONTENT) + # We use this check for the cases when the specified CONTENT is empty. The value of arg_CONTENT + # is undefined, but we still want to create a file with empty content. + if(NOT "CONTENT" IN_LIST arg_KEYWORDS_MISSING_VALUES) + if(arg_INPUT) + message(WARNING "Both CONTENT and INPUT are specified. CONTENT will be used to generate" + " output") + endif() set(template_name "QtFileConfigure.txt.in") # When building qtbase, use the source template file. # Otherwise use the installed file (basically wherever Qt6 package is found). @@ -30,10 +31,29 @@ function(qt_configure_file) endif() configure_file("${input_file}" "${arg_OUTPUT}" @ONLY) +endmacro() + +# qt_configure_file(OUTPUT output-file <INPUT input-file | CONTENT content>) +# input-file is relative to ${CMAKE_CURRENT_SOURCE_DIR} +# output-file is relative to ${CMAKE_CURRENT_BINARY_DIR} +# +# This function is similar to file(GENERATE OUTPUT) except it writes the content +# to the file at configure time, rather than at generate time. +# +# TODO: Once we require 3.18+, this can use file(CONFIGURE) in its implementation, +# or maybe its usage can be replaced by file(CONFIGURE). Until then, it uses +# configure_file() with a generic input file as source, when used with the CONTENT +# signature. +function(qt_configure_file) + cmake_parse_arguments(PARSE_ARGV 0 arg "" "OUTPUT;INPUT;CONTENT" "") + qt_configure_file_impl() endfunction() # A version of cmake_parse_arguments that makes sure all arguments are processed and errors out # with a message about ${type} having received unknown arguments. +# +# TODO: Remove when all usage of qt_parse_all_arguments were replaced by +# cmake_parse_all_arguments(PARSEARGV) instances macro(qt_parse_all_arguments result type flags options multiopts) cmake_parse_arguments(${result} "${flags}" "${options}" "${multiopts}" ${ARGN}) if(DEFINED ${result}_UNPARSED_ARGUMENTS) @@ -41,6 +61,14 @@ macro(qt_parse_all_arguments result type flags options multiopts) endif() endmacro() +# Checks whether any unparsed arguments have been passed to the function at the call site. +# Use this right after `cmake_parse_arguments`. +function(_qt_internal_validate_all_args_are_parsed prefix) + if(DEFINED ${prefix}_UNPARSED_ARGUMENTS) + message(FATAL_ERROR "Unknown arguments: (${${prefix}_UNPARSED_ARGUMENTS})") + endif() +endfunction() + # Print all variables defined in the current scope. macro(qt_debug_print_variables) cmake_parse_arguments(__arg "DEDUP" "" "MATCH;IGNORE" ${ARGN}) @@ -97,8 +125,7 @@ endfunction() # Parameters: # out_var: result of remove all arguments specified by ARGS_TO_REMOVE from ALL_ARGS # ARGS_TO_REMOVE: Arguments to remove. -# ALL_ARGS: All arguments supplied to cmake_parse_arguments or -# qt_parse_all_arguments +# ALL_ARGS: All arguments supplied to cmake_parse_arguments # from which ARGS_TO_REMOVE should be removed from. We require all the # arguments or we can't properly identify the range of the arguments detailed # in ARGS_TO_REMOVE. @@ -112,7 +139,7 @@ endfunction() # bar(target BAR.... WWW...) # # function(foo target) -# qt_parse_all_arguments(arg "" "" "BAR;ZZZ;WWW ${ARGV}) +# cmake_parse_arguments(PARSE_ARGV 1 arg "" "" "BAR;ZZZ;WWW") # qt_remove_args(forward_args # ARGS_TO_REMOVE ${target} ZZZ # ALL_ARGS ${target} BAR ZZZ WWW |