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#[===[.md:
# vcpkg_install_gn
Installs a GN project.
In order to build a GN project without installing, use [`vcpkg_build_ninja()`].
## Usage:
```cmake
vcpkg_install_gn(
SOURCE_PATH <SOURCE_PATH>
[TARGETS <target>...]
)
```
## Parameters:
### SOURCE_PATH
The path to the source directory
### TARGETS
Only install the specified targets.
Note: includes must be handled separately
[`vcpkg_build_ninja()`]: vcpkg_build_ninja.md
#]===]
function(z_vcpkg_install_gn_get_target_type out_var)
cmake_parse_arguments(PARSE_ARGV 1 "arg" "" "SOURCE_PATH;BUILD_DIR;TARGET" "")
if(DEFINED arg_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Internal error: get_target_type was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
endif()
execute_process(
COMMAND "${GN}" desc "${arg_BUILD_DIR}" "${arg_TARGET}"
WORKING_DIRECTORY "${arg_SOURCE_PATH}"
OUTPUT_VARIABLE output
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(output MATCHES [[type: ([A-Za-z0-9_]+)]])
set("${out_var}" "${CMAKE_MATCH_1}" PARENT_SCOPE)
else()
message(FATAL_ERROR "invalid result from `gn desc`: ${output}")
endif()
endfunction()
function(z_vcpkg_install_gn_get_desc out_var)
cmake_parse_arguments(PARSE_ARGV 1 "arg" "" "SOURCE_PATH;BUILD_DIR;TARGET;WHAT_TO_DISPLAY" "")
if(DEFINED arg_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Internal error: get_desc was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
endif()
execute_process(
COMMAND "${GN}" desc "${arg_BUILD_DIR}" "${arg_TARGET}" "${arg_WHAT_TO_DISPLAY}"
WORKING_DIRECTORY "${arg_SOURCE_PATH}"
OUTPUT_VARIABLE output
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REPLACE ";" "\\;" output "${output}")
string(REGEX REPLACE "\n|(\r\n)" ";" output "${output}")
set("${out_var}" "${output}" PARENT_SCOPE)
endfunction()
function(z_vcpkg_install_gn_install)
cmake_parse_arguments(PARSE_ARGV 0 "arg" "" "SOURCE_PATH;BUILD_DIR;INSTALL_DIR" "TARGETS")
if(DEFINED arg_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Internal error: install was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
endif()
foreach(target IN LISTS arg_TARGETS)
# GN targets must start with a //
z_vcpkg_install_gn_get_desc(outputs
SOURCE_PATH "${arg_SOURCE_PATH}"
BUILD_DIR "${arg_BUILD_DIR}"
TARGET "//${target}"
WHAT_TO_DISPLAY outputs
)
z_vcpkg_install_gn_get_target_type(target_type
SOURCE_PATH "${arg_SOURCE_PATH}"
BUILD_DIR "${arg_BUILD_DIR}"
TARGET "//${target}"
)
foreach(output IN LISTS outputs)
if(output MATCHES "^//")
# relative path (e.g. //out/Release/target.lib)
string(REGEX REPLACE "^//" "${arg_SOURCE_PATH}/" output "${output}")
elseif(output MATCHES "^/" AND CMAKE_HOST_WIN32)
# absolute path (e.g. /C:/path/to/target.lib)
string(REGEX REPLACE "^/" "" output "${output}")
endif()
if(NOT EXISTS "${output}")
message(WARNING "Output for target `${target}` doesn't exist: ${output}.")
continue()
endif()
if(target_type STREQUAL "executable")
file(INSTALL "${output}" DESTINATION "${arg_INSTALL_DIR}/tools")
elseif(output MATCHES "(\\.dll|\\.pdb)$")
file(INSTALL "${output}" DESTINATION "${arg_INSTALL_DIR}/bin")
else()
file(INSTALL "${output}" DESTINATION "${arg_INSTALL_DIR}/lib")
endif()
endforeach()
endforeach()
endfunction()
function(vcpkg_install_gn)
cmake_parse_arguments(PARSE_ARGV 0 arg "" "SOURCE_PATH" "TARGETS")
if(DEFINED arg_UNPARSED_ARGUMENTS)
message(WARNING "vcpkg_install_gn was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
endif()
if(NOT DEFINED arg_SOURCE_PATH)
message(FATAL_ERROR "SOURCE_PATH must be specified.")
endif()
vcpkg_build_ninja(TARGETS ${arg_TARGETS})
vcpkg_find_acquire_program(GN)
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
z_vcpkg_install_gn_install(
SOURCE_PATH "${arg_SOURCE_PATH}"
BUILD_DIR "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg"
INSTALL_DIR "${CURRENT_PACKAGES_DIR}/debug"
TARGETS ${arg_TARGETS}
)
endif()
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
z_vcpkg_install_gn_install(
SOURCE_PATH "${arg_SOURCE_PATH}"
BUILD_DIR "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel"
INSTALL_DIR "${CURRENT_PACKAGES_DIR}"
TARGETS ${arg_TARGETS}
)
endif()
endfunction()
|
