vcpkg/ports/vcpkg-cmake-config/vcpkg_cmake_config_fixup.cmake
Phoebe 77967a6228
[vcpkg-cmake-config] fix up cmake_current_packages_dir (#20439)
* [vcpkg-cmake-config] fix up cmake_current_packages_dir

* Small changes

* Address the review suggestion

* Update ports/vcpkg-cmake-config/vcpkg_cmake_config_fixup.cmake

* Update the baseline version

* Address the review suggestions

* Address the review suggestions

* fix up VCPKG_IMPORT_PREFIX if the file being modified at a deep subpath

* Fix regressions

* Remove out of date comments about multiconfig generators that are no longer relevant, fix spelling errors, and avoid calculating relative paths for the definition of VCPKG_IMPORT_PREFIX when not used.

* Fix version database.

Co-authored-by: Jack·Boos·Yu <47264268+JackBoosY@users.noreply.github.com>
Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com>
2021-12-09 14:24:16 -08:00

234 lines
12 KiB
CMake

#[===[.md:
# vcpkg_cmake_config_fixup
Merge release and debug CMake targets and configs to support multiconfig generators.
Additionally corrects common issues with targets, such as absolute paths and incorrectly placed binaries.
```cmake
vcpkg_cmake_config_fixup(
[PACKAGE_NAME <name>]
[CONFIG_PATH <config-directory>]
[DO_NOT_DELETE_PARENT_CONFIG_PATH]
[NO_PREFIX_CORRECTION]
)
```
For many ports, `vcpkg_cmake_config_fixup()` on its own should work,
as `PACKAGE_NAME` defaults to `${PORT}` and `CONFIG_PATH` defaults to `share/${PACKAGE_NAME}`.
For ports where the package name passed to `find_package` is distinct from the port name,
`PACKAGE_NAME` should be changed to be that name instead.
For ports where the directory of the `*config.cmake` files cannot be set,
use the `CONFIG_PATH` to change the directory where the files come from.
By default the parent directory of CONFIG_PATH is removed if it is named "cmake".
Passing the `DO_NOT_DELETE_PARENT_CONFIG_PATH` option disable such behavior,
as it is convenient for ports that install
more than one CMake package configuration file.
The `NO_PREFIX_CORRECTION` option disables the correction of `_IMPORT_PREFIX`
done by vcpkg due to moving the config files.
Currently the correction does not take into account how the files are moved,
and applies a rather simply correction which in some cases will yield the wrong results.
## How it Works
1. Moves `/debug/<CONFIG_PATH>/*targets-debug.cmake` to `/share/${PACKAGE_NAME}`.
2. Removes `/debug/<CONFIG_PATH>/*config.cmake`.
3. Transform all references matching `/bin/*.exe` to `/tools/<port>/*.exe` on Windows.
4. Transform all references matching `/bin/*` to `/tools/<port>/*` on other platforms.
5. Fixes `${_IMPORT_PREFIX}` in auto generated targets.
6. Replace `${CURRENT_INSTALLED_DIR}` with `${_IMPORT_PREFIX}` in configs and targets.
## Examples
* [concurrentqueue](https://github.com/Microsoft/vcpkg/blob/master/ports/concurrentqueue/portfile.cmake)
* [curl](https://github.com/Microsoft/vcpkg/blob/master/ports/curl/portfile.cmake)
* [nlohmann-json](https://github.com/Microsoft/vcpkg/blob/master/ports/nlohmann-json/portfile.cmake)
#]===]
if(Z_VCPKG_CMAKE_CONFIG_FIXUP_GUARD)
return()
endif()
set(Z_VCPKG_CMAKE_CONFIG_FIXUP_GUARD ON CACHE INTERNAL "guard variable")
function(vcpkg_cmake_config_fixup)
cmake_parse_arguments(PARSE_ARGV 0 "arg" "DO_NOT_DELETE_PARENT_CONFIG_PATH;NO_PREFIX_CORRECTION" "PACKAGE_NAME;CONFIG_PATH" "")
if(DEFINED arg_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "vcpkg_cmake_config_fixup was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
endif()
if(NOT arg_PACKAGE_NAME)
set(arg_PACKAGE_NAME "${PORT}")
endif()
if(NOT arg_CONFIG_PATH)
set(arg_CONFIG_PATH "share/${arg_PACKAGE_NAME}")
endif()
set(target_path "share/${arg_PACKAGE_NAME}")
string(REPLACE "." "\\." EXECUTABLE_SUFFIX "${VCPKG_TARGET_EXECUTABLE_SUFFIX}")
set(debug_share "${CURRENT_PACKAGES_DIR}/debug/${target_path}")
set(release_share "${CURRENT_PACKAGES_DIR}/${target_path}")
if(NOT arg_CONFIG_PATH STREQUAL "share/${arg_PACKAGE_NAME}")
if(arg_CONFIG_PATH STREQUAL "share")
set(arg_CONFIG_PATH z_vcpkg_share)
file(RENAME "${CURRENT_PACKAGES_DIR}/debug/share" "${CURRENT_PACKAGES_DIR}/debug/${arg_CONFIG_PATH}")
file(RENAME "${CURRENT_PACKAGES_DIR}/share" "${CURRENT_PACKAGES_DIR}/${arg_CONFIG_PATH}")
endif()
set(debug_config "${CURRENT_PACKAGES_DIR}/debug/${arg_CONFIG_PATH}")
set(release_config "${CURRENT_PACKAGES_DIR}/${arg_CONFIG_PATH}")
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
if(NOT EXISTS "${debug_config}")
message(FATAL_ERROR "'${debug_config}' does not exist.")
endif()
# This roundabout handling enables CONFIG_PATH = share
file(MAKE_DIRECTORY "${debug_share}")
file(GLOB files "${debug_config}/*")
file(COPY ${files} DESTINATION "${debug_share}")
file(REMOVE_RECURSE "${debug_config}")
endif()
file(GLOB files "${release_config}/*")
file(COPY ${files} DESTINATION "${release_share}")
file(REMOVE_RECURSE "${release_config}")
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
get_filename_component(debug_config_dir_name "${debug_config}" NAME)
string(TOLOWER "${debug_config_dir_name}" debug_config_dir_name)
if(debug_config_dir_name STREQUAL "cmake" AND NOT arg_DO_NOT_DELETE_PARENT_CONFIG_PATH)
file(REMOVE_RECURSE "${debug_config}")
else()
get_filename_component(debug_config_parent_dir "${debug_config}" DIRECTORY)
get_filename_component(debug_config_dir_name "${debug_config_parent_dir}" NAME)
string(TOLOWER "${debug_config_dir_name}" debug_config_dir_name)
if(debug_config_dir_name STREQUAL "cmake" AND NOT arg_DO_NOT_DELETE_PARENT_CONFIG_PATH)
file(REMOVE_RECURSE "${debug_config_parent_dir}")
endif()
endif()
endif()
get_filename_component(release_config_dir_name "${release_config}" NAME)
string(TOLOWER "${release_config_dir_name}" release_config_dir_name)
if(release_config_dir_name STREQUAL "cmake" AND NOT arg_DO_NOT_DELETE_PARENT_CONFIG_PATH)
file(REMOVE_RECURSE "${release_config}")
else()
get_filename_component(release_config_parent_dir "${release_config}" DIRECTORY)
get_filename_component(release_config_dir_name "${release_config_parent_dir}" NAME)
string(TOLOWER "${release_config_dir_name}" release_config_dir_name)
if(release_config_dir_name STREQUAL "cmake" AND NOT arg_DO_NOT_DELETE_PARENT_CONFIG_PATH)
file(REMOVE_RECURSE "${release_config_parent_dir}")
endif()
endif()
endif()
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
if(NOT EXISTS "${debug_share}")
message(FATAL_ERROR "'${debug_share}' does not exist.")
endif()
endif()
file(GLOB_RECURSE unused_files
"${debug_share}/*[Tt]argets.cmake"
"${debug_share}/*[Cc]onfig.cmake"
"${debug_share}/*[Cc]onfigVersion.cmake"
"${debug_share}/*[Cc]onfig-version.cmake"
)
foreach(unused_file IN LISTS unused_files)
file(REMOVE "${unused_file}")
endforeach()
file(GLOB_RECURSE release_targets
"${release_share}/*-release.cmake"
)
foreach(release_target IN LISTS release_targets)
file(READ "${release_target}" contents)
string(REPLACE "${CURRENT_INSTALLED_DIR}" "\${_IMPORT_PREFIX}" contents "${contents}")
string(REGEX REPLACE "\\\${_IMPORT_PREFIX}/bin/([^ \"]+${EXECUTABLE_SUFFIX})" "\${_IMPORT_PREFIX}/tools/${PORT}/\\1" contents "${contents}")
file(WRITE "${release_target}" "${contents}")
endforeach()
if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
file(GLOB_RECURSE debug_targets
"${debug_share}/*-debug.cmake"
)
foreach(debug_target IN LISTS debug_targets)
file(RELATIVE_PATH debug_target_rel "${debug_share}" "${debug_target}")
file(READ "${debug_target}" contents)
string(REPLACE "${CURRENT_INSTALLED_DIR}" "\${_IMPORT_PREFIX}" contents "${contents}")
string(REGEX REPLACE "\\\${_IMPORT_PREFIX}/bin/([^ \";]+${EXECUTABLE_SUFFIX})" "\${_IMPORT_PREFIX}/tools/${PORT}/\\1" contents "${contents}")
string(REPLACE "\${_IMPORT_PREFIX}/lib" "\${_IMPORT_PREFIX}/debug/lib" contents "${contents}")
string(REPLACE "\${_IMPORT_PREFIX}/bin" "\${_IMPORT_PREFIX}/debug/bin" contents "${contents}")
file(WRITE "${release_share}/${debug_target_rel}" "${contents}")
file(REMOVE "${debug_target}")
endforeach()
endif()
#Fix ${_IMPORT_PREFIX} and absolute paths in cmake generated targets and configs;
#Since those can be renamed we have to check in every *.cmake
file(GLOB_RECURSE main_cmakes "${release_share}/*.cmake")
foreach(main_cmake IN LISTS main_cmakes)
file(READ "${main_cmake}" contents)
# Note: I think the following comment is no longer true, since we now require the path to be `share/blah`
# however, I don't know it for sure.
# - nimazzuc
#This correction is not correct for all cases. To make it correct for all cases it needs to consider
#original folder deepness to CURRENT_PACKAGES_DIR in comparison to the moved to folder deepness which
#is always at least (>=) 2, e.g. share/${PORT}. Currently the code assumes it is always 2 although
#this requirement is only true for the *Config.cmake. The targets are not required to be in the same
#folder as the *Config.cmake!
if(NOT arg_NO_PREFIX_CORRECTION)
string(REGEX REPLACE
[[get_filename_component\(_IMPORT_PREFIX "\${CMAKE_CURRENT_LIST_FILE}" PATH\)(
get_filename_component\(_IMPORT_PREFIX "\${_IMPORT_PREFIX}" PATH\))*]]
[[get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)]]
contents "${contents}") # see #1044 for details why this replacement is necessary. See #4782 why it must be a regex.
string(REGEX REPLACE
[[get_filename_component\(PACKAGE_PREFIX_DIR "\${CMAKE_CURRENT_LIST_DIR}/\.\./(\.\./)*" ABSOLUTE\)]]
[[get_filename_component(PACKAGE_PREFIX_DIR "${CMAKE_CURRENT_LIST_DIR}/../../" ABSOLUTE)]]
contents "${contents}")
string(REGEX REPLACE
[[get_filename_component\(PACKAGE_PREFIX_DIR "\${CMAKE_CURRENT_LIST_DIR}/\.\.((\\|/)\.\.)*" ABSOLUTE\)]]
[[get_filename_component(PACKAGE_PREFIX_DIR "${CMAKE_CURRENT_LIST_DIR}/../../" ABSOLUTE)]]
contents "${contents}") # This is a meson-related workaround, see https://github.com/mesonbuild/meson/issues/6955
endif()
#Fix absolute paths to installed dir with ones relative to ${CMAKE_CURRENT_LIST_DIR}
#This happens if vcpkg built libraries are directly linked to a target instead of using
#an imported target.
string(REPLACE "${CURRENT_INSTALLED_DIR}" [[${VCPKG_IMPORT_PREFIX}]] contents "${contents}")
file(TO_CMAKE_PATH "${CURRENT_PACKAGES_DIR}" cmake_current_packages_dir)
string(REPLACE "${cmake_current_packages_dir}" [[${VCPKG_IMPORT_PREFIX}]] contents "${contents}")
# If ${VCPKG_IMPORT_PREFIX} was actually used, inject a definition of it:
string(FIND "${contents}" [[${VCPKG_IMPORT_PREFIX}]] index)
if (NOT index STREQUAL "-1")
get_filename_component(main_cmake_dir "${main_cmake}" DIRECTORY)
# Calculate relative to be a sequence of "../"
file(RELATIVE_PATH relative "${main_cmake_dir}" "${cmake_current_packages_dir}")
string(PREPEND contents "get_filename_component(VCPKG_IMPORT_PREFIX \"\${CMAKE_CURRENT_LIST_DIR}\/${relative}\" ABSOLUTE)")
endif()
file(WRITE "${main_cmake}" "${contents}")
endforeach()
# Remove /debug/<target_path>/ if it's empty.
file(GLOB_RECURSE remaining_files "${debug_share}/*")
if(remaining_files STREQUAL "")
file(REMOVE_RECURSE "${debug_share}")
endif()
# Remove /debug/share/ if it's empty.
file(GLOB_RECURSE remaining_files "${CURRENT_PACKAGES_DIR}/debug/share/*")
if(remaining_files STREQUAL "")
file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
endif()
endfunction()