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Diffstat (limited to 'src/linguist/GenerateLUpdateProject.cmake')
| -rw-r--r-- | src/linguist/GenerateLUpdateProject.cmake | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/linguist/GenerateLUpdateProject.cmake b/src/linguist/GenerateLUpdateProject.cmake new file mode 100644 index 000000000..e359708c5 --- /dev/null +++ b/src/linguist/GenerateLUpdateProject.cmake @@ -0,0 +1,152 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: BSD-3-Clause + +# Generate an lupdate project file in JSON format. +# +# This file is to be used in CMake script mode with the following variables set: +# +# IN_FILE: .cmake file that sets lupdate_* variables +# OUT_FILE: lupdate project .json file + +include("${IN_FILE}") + +# Converts a CMake list into a string containing a JSON array +# a,b,c -> [ "a", "b", "c" ] +function(list_to_json_array srcList jsonList) + set(quotedList "") + foreach(entry ${srcList}) + list(APPEND quotedList "\"${entry}\"") + endforeach() + list(JOIN quotedList ", " joinedList) + set(${jsonList} "[ ${joinedList} ]" PARENT_SCOPE) +endfunction() + +# Remove all nonexistent files from ARGN and store the result in out_var. +# filter_nonexistent_files(existing_files foo.txt bar.cpp) +# -> foo.txt (if foo.txt exists and bar.cpp does not) +function(filter_nonexistent_files out_var) + # Filter out non-existent (generated) source files + set(existing_sources "") + foreach(path IN LISTS ARGN) + if(EXISTS "${path}") + list(APPEND existing_sources "${path}") + endif() + endforeach() + set("${out_var}" "${existing_sources}" PARENT_SCOPE) +endfunction() + +# Remove source files that are unsuitable input for lupdate. +# filter_unsuitable_lupdate_input(sources main.cpp foo_de.qm bar.qml whatever_metatypes.json) +# -> main.cpp bar.qml +function(filter_unsuitable_lupdate_input out_var) + set(result ${ARGN}) + list(FILTER result EXCLUDE REGEX "\\.(qm|json)$") + set("${out_var}" "${result}" PARENT_SCOPE) +endfunction() + +# Remove files from SOURCES that are in EXCLUDED_DIR. +# filter_files_in_directory(existing_files +# EXCLUDED_DIR .../target_autogen +# SOURCES .../src/foo.ui .../target_autogen/include/ui_foo.h) +# -> .../src/foo.ui +function(filter_files_in_directory out_var) + set(no_value_options "") + set(single_value_options EXCLUDED_DIR) + set(multi_value_options SOURCES) + cmake_parse_arguments(PARSE_ARGV 1 arg + "${no_value_options}" "${single_value_options}" "${multi_value_options}" + ) + + set(result "") + foreach(source_file IN LISTS arg_SOURCES) + file(RELATIVE_PATH relative_path "${arg_EXCLUDED_DIR}" "${source_file}") + if(IS_ABSOLUTE "${relative_path}" OR (relative_path MATCHES "^\\.\\.")) + list(APPEND result "${source_file}") + endif() + endforeach() + set("${out_var}" "${result}" PARENT_SCOPE) +endfunction() + +function(prepare_json_sources out_var) + set(no_value_options "") + set(single_value_options AUTOGEN_DIR) + set(multi_value_options SOURCES) + cmake_parse_arguments(PARSE_ARGV 1 arg + "${no_value_options}" "${single_value_options}" "${multi_value_options}" + ) + + filter_nonexistent_files(sources ${arg_SOURCES}) + filter_unsuitable_lupdate_input(sources ${sources}) + if(DEFINED arg_AUTOGEN_DIR) + filter_files_in_directory(sources EXCLUDED_DIR ${arg_AUTOGEN_DIR} SOURCES ${sources}) + endif() + list_to_json_array("${sources}" result) + set("${out_var}" "${result}" PARENT_SCOPE) +endfunction() + +get_filename_component(project_root "${lupdate_project_file}" DIRECTORY) + +# Make relative paths absolute to the project root +set(path_variables sources include_paths translations) +if(lupdate_subproject_count GREATER 0) + foreach(i RANGE 1 ${lupdate_subproject_count}) + list(APPEND path_variables + subproject${i}_include_paths + subproject${i}_sources + subproject${i}_excluded + ) + endforeach() +endif() +foreach(path_var IN LISTS path_variables) + set(absolute_${path_var} "") + foreach(path IN LISTS lupdate_${path_var}) + if(path STREQUAL "") + continue() + endif() + if(NOT IS_ABSOLUTE "${path}") + if(path_var MATCHES "^subproject[0-9]+_") + set(base_dir "${lupdate_${CMAKE_MATCH_0}source_dir}") + else() + set(base_dir "${project_root}") + endif() + get_filename_component(path "${path}" ABSOLUTE BASE_DIR "${base_dir}") + endif() + list(APPEND absolute_${path_var} "${path}") + endforeach() +endforeach() + +prepare_json_sources(json_sources SOURCES ${absolute_sources}) +list_to_json_array("${absolute_include_paths}" json_include_paths) +list_to_json_array("${absolute_translations}" json_translations) + +set(content "{ + \"projectFile\": \"${lupdate_project_file}\", + \"includePaths\": ${json_include_paths}, + \"sources\": ${json_sources}, + \"translations\": ${json_translations}, + \"subProjects\": [ +") +if(lupdate_subproject_count GREATER 0) + foreach(i RANGE 1 ${lupdate_subproject_count}) + prepare_json_sources(json_sources + AUTOGEN_DIR ${lupdate_subproject${i}_autogen_dir} + SOURCES ${absolute_subproject${i}_sources} + ) + list_to_json_array("${absolute_subproject${i}_include_paths}" json_include_paths) + list_to_json_array("${absolute_subproject${i}_excluded}" json_sources_exclusions) + string(APPEND content " { + \"projectFile\": \"${lupdate_subproject${i}_source_dir}/CMakeLists.txt\", + \"includePaths\": ${json_include_paths}, + \"sources\": ${json_sources}, + \"excluded\": ${json_sources_exclusions} + }") + if(i LESS lupdate_subproject_count) + string(APPEND content ",") + endif() + string(APPEND content "\n") + endforeach() +endif() +string(APPEND content " ] +} +") +file(WRITE "${OUT_FILE}" "${content}") |