CMakeLists.txt

###############################################################################
#
# hubbardI: A TRIQS based hubbardI solver
#
# Copyright (c) 2019-2020 Malte Schueler
# Copyright (c) 2019-2020 The Simons foundation
#   authors: N. Wentzell
#
# hubbardI is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# hubbardI is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# hubbardI. If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

cmake_minimum_required(VERSION 3.20 FATAL_ERROR)
cmake_policy(VERSION 3.20)
if(POLICY CMP0144)
  cmake_policy(SET CMP0144 NEW)
endif()

# ############
# Define Project
project(triqs_hubbardI VERSION 3.3.0 LANGUAGES CXX)
get_directory_property(IS_SUBPROJECT PARENT_DIRECTORY)

# ############
# Load TRIQS and CPP2PY
find_package(TRIQS 3.3 REQUIRED)

# Get the git hash & print status
triqs_get_git_hash_of_source_dir(PROJECT_GIT_HASH)
message(STATUS "${PROJECT_NAME} version : ${PROJECT_VERSION}")
message(STATUS "${PROJECT_NAME} Git hash: ${PROJECT_GIT_HASH}")

# Enforce Consistent Versioning
if(NOT ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR} VERSION_EQUAL ${TRIQS_VERSION_MAJOR}.${TRIQS_VERSION_MINOR})
  message(FATAL_ERROR "The ${PROJECT_NAME} version ${PROJECT_VERSION} is not compatible with TRIQS version ${TRIQS_VERSION}.")
endif()

# Default Install directory to TRIQS_ROOT if not given or when provided as relative path.
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT OR (NOT IS_ABSOLUTE ${CMAKE_INSTALL_PREFIX}))
  message(STATUS "No install prefix given (or invalid). Defaulting to TRIQS_ROOT")
  set(CMAKE_INSTALL_PREFIX ${TRIQS_ROOT} CACHE PATH "default install path" FORCE)
  set(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT FALSE)
endif()
if(NOT IS_SUBPROJECT)
  message(STATUS "-------- CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX} --------")
endif()
set(${PROJECT_NAME}_BINARY_DIR ${PROJECT_BINARY_DIR} CACHE STRING "Binary directory of the ${PROJECT_NAME} Project")

# Make additional Find Modules available
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/share/cmake/Modules)

# ############
# CMake Options

# Default to Release build type
if(NOT CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release CACHE STRING "Type of build" FORCE)
endif()
if(NOT IS_SUBPROJECT)
  message(STATUS "-------- BUILD-TYPE: ${CMAKE_BUILD_TYPE} --------")
endif()

# Python Support
if(NOT TRIQS_WITH_PYTHON_SUPPORT)
  message(FATAL_ERROR "TRIQS was installed without Python support. Cannot build the Python Interface. Disable the build with -DPythonSupport=OFF")
endif()

# Documentation
option(Build_Documentation "Build documentation" OFF)

# Testing
option(Build_Tests "Build tests" ON)
if(Build_Tests)
  enable_testing()
endif()

# Provide GNU Installation directories
include(GNUInstallDirs)

# #############
# Build Project

# Find / Build dependencies
add_subdirectory(deps)

# Tests
if(Build_Tests)
  add_subdirectory(test)
endif()

# Python
add_subdirectory(python/${PROJECT_NAME})

# Docs
if(NOT IS_SUBPROJECT AND Build_Documentation)
  add_subdirectory(doc)
endif()

# Additional configuration files
add_subdirectory(share)

# add packaging for automatic Versioning
add_subdirectory(packaging)

# #############
# Debian Package

option(BUILD_DEBIAN_PACKAGE "Build a deb package" OFF)
if(BUILD_DEBIAN_PACKAGE AND NOT IS_SUBPROJECT)
  if(NOT CMAKE_INSTALL_PREFIX STREQUAL "/usr")
    message(FATAL_ERROR "CMAKE_INSTALL_PREFIX must be /usr for packaging")
  endif()
  set(CPACK_PACKAGE_NAME ${PROJECT_NAME})
  set(CPACK_GENERATOR "DEB")
  set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
  set(CPACK_PACKAGE_CONTACT "https://github.com/TRIQS/hubbardI")
  execute_process(COMMAND dpkg --print-architecture OUTPUT_VARIABLE CMAKE_DEBIAN_PACKAGE_ARCHITECTURE OUTPUT_STRIP_TRAILING_WHITESPACE)
  set(CPACK_DEBIAN_PACKAGE_DEPENDS "triqs (>= 3.3)")
  set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
  set(CPACK_DEBIAN_PACKAGE_GENERATE_SHLIBS ON)
  include(CPack)
endif()