[serdepp] add new port

[injae]

Describe the pull request

• What does your PR fix?

  Adds a serdepp port

• Which triplets are supported/not supported? Have you updated the CI baseline?

  all, No

• Does your PR follow the maintainer guide?

  Yes

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

  Yes

If you are still working on the PR, open it as a Draft: https://github.blog/2019-02-14-introducing-draft-pull-requests/

[ghost]

All CLA requirements met.

[injae]

It doesn't seem to find the files installed with ExternalProject_add.

x64_linux error.log

CMake Error at cmake/cppm_loader.cmake:30 (include):
  include could not find requested file:

    /Users/vagrant/.cppm/cmake/cppm-loader/load.cmake
Call Stack (most recent call first):
  CMakeLists.txt:4 (include)


CMake Error at CMakeLists.txt:5 (cppm_project):
  Unknown CMake command "cppm_project".

cppm-loader/load.cmake

if(CMAKE_SYSTEM_NAME STREQUAL "Windows" OR (NOT CMAKE_SYSTEM_NAME AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows"))
    set(env_home "$ENV{USERPROFILE}")
else()
    set(env_home "$ENV{HOME}")
endif()
string(REPLACE "\\" "/" HOME "${env_home}")

set(CPPM_ROOT          ${HOME}/.cppm)
set(CPPM_LOADER_CACHE  ${CPPM_ROOT}/cache/cppm-loader/git)
set(CPPM_LOADER_PATH   ${CPPM_ROOT}/cmake/cppm-loader)

if(NOT DEFINED IS_CPPM_LOADER_LOADED)
set(_install_script "${CPPM_LOADER_CACHE}/install-script")
file(WRITE ${_install_script}/CMakeLists.txt
"cmake_minimum_required(VERSION 3.6)
project(CPPM_LOADER_DOWNLOAD NONE)
include(ExternalProject)
ExternalProject_Add(cppm-loader
    GIT_REPOSITORY https://github.com/injae/cppm-loader.git
    SOURCE_DIR ${CPPM_LOADER_PATH}
    BINARY_DIR ${CPPM_LOADER_CACHE}/build
    CONFIGURE_COMMAND \"\"
    BUILD_COMMAND  \"\"
    INSTALL_COMMAND \"\"
)"
)
execute_process(COMMAND cmake . WORKING_DIRECTORY ${_install_script} OUTPUT_QUIET)
execute_process(COMMAND cmake  --build . WORKING_DIRECTORY ${_install_script} OUTPUT_QUIET)
endif()
include(${CPPM_LOADER_PATH}/load.cmake)

[JonLiu1993]

@injae ,Thanks for your pr, this is the detail error log:
https://dev.azure.com/vcpkg/public/_build/results?buildId=65686&view=artifacts&pathAsName=false&type=publishedArtifacts

[injae]

ExternalProject_Add does not seem to work because of the problem that find_package(GIT) does not work in portfile.cmake.

error: could not find git for clone of cppm-loader
Call Stack (most recent call first):
  D:/downloads/tools/cmake-3.21.1-windows/cmake-3.21.1-windows-i386/share/cmake-3.21/Modules/ExternalProject.cmake:3700 (_ep_add_download_command)
  CMakeLists.txt:4 (ExternalProject_Add)

[github-actions]

You have modified or added at least one vcpkg.json where a "license" field is missing.

If you feel able to do so, please consider adding a "license" field to the following files:

• ports/serdepp/vcpkg.json

Valid values for the license field can be found in the documentation