CMakeLists.txt

# This file is automatically generated. Do not modify!
cmake_minimum_required(VERSION 3.10)
project(gz_msgs_vendor)

# Project-specific settings
set(LIB_VER_MAJOR 11)
set(LIB_VER_MINOR 0)
set(LIB_VER_PATCH 1)
set(LIB_VER_SUFFIX "")

# Derived variables
set(LIB_NAME gz-msgs)
set(GITHUB_NAME gz-msgs)
string(REPLACE "-" "_" LIB_NAME_UNDERSCORE ${LIB_NAME})
set(LIB_NAME_COMP_PREFIX ${LIB_NAME})
set(LIB_NAME_FULL ${LIB_NAME}${LIB_VER_MAJOR})
set(LIB_VER ${LIB_VER_MAJOR}.${LIB_VER_MINOR}.${LIB_VER_PATCH})

find_package(ament_cmake_core REQUIRED)
find_package(ament_cmake_vendor_package REQUIRED)
find_package(ament_cmake_export_dependencies REQUIRED)

find_package(gz_cmake_vendor REQUIRED)
find_package(gz_math_vendor REQUIRED)
find_package(gz_tools_vendor REQUIRED)

# Set the VERSION_MATCH to "EXACT" by default, but relax the requirement
# if we are users are building from source (determined by the
# GZ_BUILD_FROM_SOURCE environment variable) or if explicitly told to do so
# by the GZ_RELAX_VERSION_MATCH environment variable.
set(VERSION_MATCH "EXACT")
if(NOT $ENV{GZ_BUILD_FROM_SOURCE} STREQUAL "")
  set(VERSION_MATCH "")
endif()

if(NOT $ENV{GZ_RELAX_VERSION_MATCH} STREQUAL "")
  set(VERSION_MATCH "")
endif()

find_package(${LIB_NAME_FULL} ${VERSION_MATCH} ${LIB_VER} COMPONENTS all QUIET)

ament_vendor(${LIB_NAME_UNDERSCORE}_vendor
  SATISFIED ${${LIB_NAME_FULL}_FOUND}
  VCS_URL https://github.com/gazebosim/${GITHUB_NAME}.git
  VCS_VERSION ${GITHUB_NAME}${LIB_VER_MAJOR}_${LIB_VER}${LIB_VER_SUFFIX}
  GLOBAL_HOOK
)

find_package(ament_cmake_test REQUIRED)
if(BUILD_TESTING)
  find_package(ament_cmake_lint_cmake REQUIRED)
  find_package(ament_cmake_copyright REQUIRED)
  find_package(ament_cmake_xmllint REQUIRED)

  ament_lint_cmake()
  ament_copyright()
  ament_xmllint()
endif()

ament_export_dependencies(
  gz_cmake_vendor
  gz_math_vendor
  gz_tools_vendor
)

if(NOT ${${LIB_NAME_FULL}_FOUND})
  ament_environment_hooks("${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_NAME}.dsv.in")
  # Create a dummy .sh file needed for ament_package to source the .dsv file.
  # See https://github.com/ament/ament_package/issues/145
  file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.sh "# Dummy .sh file needed for .dsv file to be sourced.")
  ament_environment_hooks("${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.sh")
endif()

# The goal is to support versionless package names once the user has found the
# vendor package. Example usage:
#
#   find_package(gz_sim_vendor)
#   find_package(gz-sim VERSION 8.2.0) # Note gz-sim not gz-sim8
#
# To accomplish this, we create a `{LIB_NAME}-config.cmake` file that does
# find_package on the underlying package and sets up CMake targets with the
# same name as the original targets sans the version number in the target.
#
# However, since the vendor package is built with `GLOBAL_HOOK`, we can't
# install the `-config.cmake` file we're creating here to where the versioned
# `-config.cmake` from the underlying package is located. If we did, users can
# `find_package` the versionless package without first finding the vendor
# package. Thus, we install the `-config.cmake` file to a nonstandard
# location: `opt/${PROJECT_NAME}/extra_cmake/` and provide a
# `{vendor_name}-extras.cmake` file that adds that path to `CMAKE_PREFIX_PATH`.
ament_package(
  CONFIG_EXTRAS_POST "gz_msgs_vendor-extras.cmake.in"
)

include(CMakePackageConfigHelpers)
include(GNUInstallDirs)

configure_package_config_file(${LIB_NAME}-config.cmake.in
  ${CMAKE_CURRENT_BINARY_DIR}/${LIB_NAME}-config.cmake
  INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${LIB_NAME})

write_basic_package_version_file(
  ${CMAKE_CURRENT_BINARY_DIR}/${LIB_NAME}-config-version.cmake
  VERSION ${LIB_VER}
  COMPATIBILITY SameMajorVersion)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${LIB_NAME}-config.cmake
              ${CMAKE_CURRENT_BINARY_DIR}/${LIB_NAME}-config-version.cmake
        DESTINATION "opt/${PROJECT_NAME}/extra_cmake/lib/cmake/${LIB_NAME}")