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# Create a header containing a hash that describes this library. For a
# released version of Qt, we'll use the .tag file that is updated by git
# archive with the tree hash. For unreleased versions, we'll ask git
# rev-parse. If none of this works, we use CMake to hash all the files
# in the src/qml/ directory.
# Skip recreation of the hash when doing a developer build.
function(qt_declarative_write_tag_header target_name)
set(out_file "${CMAKE_CURRENT_BINARY_DIR}/qml_compile_hash_p.h")
if(FEATURE_developer_build AND EXISTS "${out_file}")
return()
endif()
set(tag_file "${CMAKE_CURRENT_SOURCE_DIR}/../../.tag")
set(tag_contents "")
if(EXISTS "${tag_file}")
file(READ "${tag_file}" tag_contents)
string(STRIP "${tag_contents}" tag_contents)
endif()
find_program(git_path git)
if(tag_contents AND NOT tag_contents STREQUAL "$Format:%T$")
set(QML_COMPILE_HASH "${tag_contents}")
elseif(git_path AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/../../.git")
execute_process(
COMMAND ${git_path} rev-parse HEAD
OUTPUT_VARIABLE QML_COMPILE_HASH
OUTPUT_STRIP_TRAILING_WHITESPACE
WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}")
endif()
string(LENGTH "${QML_COMPILE_HASH}" QML_COMPILE_HASH_LENGTH)
if(QML_COMPILE_HASH_LENGTH EQUAL 0)
set(sources_hash "")
file(GLOB_RECURSE qtqml_source_files "${CMAKE_CURRENT_SOURCE_DIR}/*")
foreach(file IN LISTS qtqml_source_files)
file(SHA1 ${file} file_hash)
string(APPEND sources_hash ${file_hash})
endforeach()
string(SHA1 QML_COMPILE_HASH "${sources_hash}")
endif()
string(LENGTH "${QML_COMPILE_HASH}" QML_COMPILE_HASH_LENGTH)
if(QML_COMPILE_HASH_LENGTH GREATER 0)
configure_file("qml_compile_hash_p.h.in" "${out_file}")
else()
message(FATAL_ERROR "QML compile hash is empty! "
"You need either a valid git repository or a non-empty .tag file.")
endif()
endfunction()
# Generate a header file containing a regular expression jit table.
function(qt_declarative_generate_reg_exp_jit_tables consuming_target)
set(generate_dir "${CMAKE_CURRENT_BINARY_DIR}/.generated")
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
string(APPEND generate_dir "/debug")
elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
string(APPEND generate_dir "/release")
endif()
set(output_file "${generate_dir}/RegExpJitTables.h")
set(retgen_script_file "${CMAKE_CURRENT_SOURCE_DIR}/../3rdparty/masm/yarr/create_regex_tables")
add_custom_command(
OUTPUT "${output_file}"
COMMAND "${QT_INTERNAL_DECLARATIVE_PYTHON}" ${retgen_script_file} ${output_file}
MAIN_DEPENDENCY ${retgen_script_file}
)
target_sources(${consuming_target} PRIVATE ${output_file})
target_include_directories(${consuming_target} PRIVATE $<BUILD_INTERFACE:${generate_dir}>)
endfunction()
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