CMakeLists.txt

#-----------------------------------------------------------------------------------
# d-SEAMS - Deferred Structural Elucidation Analysis for Molecular Simulations
#
# Copyright (c) 2018--present d-SEAMS core team
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the MIT License as published by
# the Open Source Initiative.
#
# A copy of the MIT License is included in the LICENSE file of this repository.
# You should have received a copy of the MIT License along with this program.
# If not, see <https://opensource.org/licenses/MIT>.
#-----------------------------------------------------------------------------------

# Build system contributed by Rohit Goswami (@HaoZeke)
# <rohit.goswami[at]aol.com>

#
# CMake options
#

# CMake version
cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
set(CMAKE_CXX_STANDARD 17)

# Some Defaults
if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
  message(
    FATAL_ERROR
      "Do not build in-source.
                       Remove CMakeCache.txt and the CMakeFiles/ directory. Then build in a separate folder.
       Refer to the docs if needed."
    )
endif()

# If CMAKE_BUILD_TYPE is undefined, build the Debug version
if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Debug")
endif()
 
# Use ccache if avaliable
find_program(CCACHE_FOUND ccache)
if(CCACHE_FOUND)
    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
endif(CCACHE_FOUND)

# For rtags
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

#
# Configure CMake environment
#

# Register general cmake commands
include(cmake/Custom.cmake)

# Set policies
set_policy(CMP0054 NEW) # ENABLE CMP0054: Only interpret if() arguments as variables or keywords when unquoted.
set_policy(CMP0042 NEW) # ENABLE CMP0042: MACOSX_RPATH is enabled by default.
set_policy(CMP0063 NEW) # ENABLE CMP0063: Honor visibility properties for all target types.

# Include cmake modules
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

include(GenerateExportHeader)

set(WriterCompilerDetectionHeaderFound NOTFOUND)
# This module is only available with CMake >=3.1, so check whether it could be found
# BUT in CMake 3.1 this module doesn't recognize AppleClang as compiler, so just use it as of CMake 3.2
if (${CMAKE_VERSION} VERSION_GREATER "3.2")
    include(WriteCompilerDetectionHeader OPTIONAL RESULT_VARIABLE WriterCompilerDetectionHeaderFound)
endif()

# Include custom cmake modules
include(cmake/Coverage.cmake)
include(cmake/GenerateTemplateExportHeader.cmake)
include(cmake/GetGitRevisionDescription.cmake)
include(cmake/HealthCheck.cmake)


#
# Project description and (meta) information
#

# Get git revision
get_git_head_revision(GIT_REFSPEC GIT_SHA1)
string(SUBSTRING "${GIT_SHA1}" 0 12 GIT_REV)
if(NOT GIT_SHA1)
    set(GIT_REV "0")
endif()

# Meta information about the project
set(META_PROJECT_NAME        "yodaStruct")
set(META_PROJECT_DESCRIPTION "A molecular simulation analysis toolkit")
set(META_AUTHOR_ORGANIZATION "IIT Kanpur")
set(META_AUTHOR_DOMAIN       "https://github.com/cginternals/cmake-init/")
set(META_AUTHOR_MAINTAINER   "rohit.goswami[at]aol.com")
set(META_VERSION_MAJOR       "0")
set(META_VERSION_MINOR       "1")
set(META_VERSION_PATCH       "0")
set(META_VERSION_REVISION    "${GIT_REV}")
set(META_VERSION             "${META_VERSION_MAJOR}.${META_VERSION_MINOR}.${META_VERSION_PATCH}")
set(META_NAME_VERSION        "${META_PROJECT_NAME} v${META_VERSION} (${META_VERSION_REVISION})")
set(META_CMAKE_INIT_SHA      "${GIT_REV}")

string(MAKE_C_IDENTIFIER ${META_PROJECT_NAME} META_PROJECT_ID)
string(TOUPPER ${META_PROJECT_ID} META_PROJECT_ID)

#
# Project configuration options
#

# Project options
option(BUILD_SHARED_LIBS      "Build shared instead of static libraries."              ON)
option(OPTION_SELF_CONTAINED  "Create a self-contained install with all dependencies." OFF)
option(OPTION_BUILD_TESTS     "Build tests."                                           ON)
option(OPTION_BUILD_DOCS      "Build documentation."                                   OFF)
option(OPTION_BUILD_EXAMPLES  "Build examples."                                        OFF)
option(OPTION_ENABLE_COVERAGE "Add coverage information."                              OFF)


#
# Declare project
#

# Generate folders for IDE targets (e.g., VisualStudio solutions)
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
set(IDE_FOLDER "")

# Declare project
project(${META_PROJECT_NAME} LANGUAGES C CXX)

# Set output directories
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR})

# Create version file
file(WRITE "${PROJECT_BINARY_DIR}/VERSION" "${META_NAME_VERSION}")


#
# Project Health Check Setup
#

# Add cmake-init template check cmake targets
add_check_template_target(${META_CMAKE_INIT_SHA})

# Configure health check tools
enable_cppcheck(ON)
enable_clang_tidy(ON)
enable_coverage(${OPTION_ENABLE_COVERAGE})


#
# Compiler settings and options
#

include(cmake/CompileOptions.cmake)


#
# Deployment/installation setup
#

# Get project name
set(project ${META_PROJECT_NAME})

# Check for system dir install
set(SYSTEM_DIR_INSTALL FALSE)
if("${CMAKE_INSTALL_PREFIX}" STREQUAL "/usr" OR "${CMAKE_INSTALL_PREFIX}" STREQUAL "/usr/local")
    set(SYSTEM_DIR_INSTALL TRUE)
endif()

# Installation paths
if(UNIX AND SYSTEM_DIR_INSTALL)
    # Install into the system (/usr/bin or /usr/local/bin)
    set(INSTALL_ROOT      "share/${project}")       # /usr/[local]/share/<project>
    set(INSTALL_CMAKE     "share/${project}/cmake") # /usr/[local]/share/<project>/cmake
    set(INSTALL_EXAMPLES  "share/${project}")       # /usr/[local]/share/<project>
    set(INSTALL_DATA      "share/${project}")       # /usr/[local]/share/<project>
    set(INSTALL_BIN       "bin")                    # /usr/[local]/bin
    set(INSTALL_SHARED    "lib")                    # /usr/[local]/lib
    set(INSTALL_LIB       "lib")                    # /usr/[local]/lib
    set(INSTALL_INCLUDE   "include")                # /usr/[local]/include
    set(INSTALL_DOC       "share/doc/${project}")   # /usr/[local]/share/doc/<project>
    set(INSTALL_SHORTCUTS "share/applications")     # /usr/[local]/share/applications
    set(INSTALL_ICONS     "share/pixmaps")          # /usr/[local]/share/pixmaps
    set(INSTALL_INIT      "/etc/init")              # /etc/init (upstart init scripts)
else()
    # Install into local directory
    set(INSTALL_ROOT      ".")                      # ./
    set(INSTALL_CMAKE     "cmake")                  # ./cmake
    set(INSTALL_EXAMPLES  ".")                      # ./
    set(INSTALL_DATA      ".")                      # ./
    set(INSTALL_BIN       "bin")                    # ./bin
    set(INSTALL_SHARED    "lib")                    # ./lib
    set(INSTALL_LIB       "lib")                    # ./lib
    set(INSTALL_INCLUDE   "include")                # ./include
    set(INSTALL_DOC       "doc")                    # ./doc
    set(INSTALL_SHORTCUTS "misc")                   # ./misc
    set(INSTALL_ICONS     "misc")                   # ./misc
    set(INSTALL_INIT      "misc")                   # ./misc
endif()

# Set runtime path
set(CMAKE_SKIP_BUILD_RPATH            FALSE) # Add absolute path to all dependencies for BUILD
set(CMAKE_BUILD_WITH_INSTALL_RPATH    FALSE) # Use CMAKE_INSTALL_RPATH for INSTALL
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE) # Do NOT add path to dependencies for INSTALL

if(NOT SYSTEM_DIR_INSTALL)
    # Find libraries relative to binary
    if(APPLE)
        set(CMAKE_INSTALL_RPATH "@loader_path/../../../${INSTALL_LIB}")
    else()
        set(CMAKE_INSTALL_RPATH "$ORIGIN/${INSTALL_LIB}")
    endif()
endif()

SET( EIGEN3_INCLUDE_DIR "$ENV{EIGEN3_INCLUDE_DIR}" )
IF( NOT EIGEN3_INCLUDE_DIR )
    MESSAGE( FATAL_ERROR "Please point the environment variable EIGEN3_INCLUDE_DIR to the include directory of your Eigen3 installation.")
ENDIF()
INCLUDE_DIRECTORIES ( "${EIGEN3_INCLUDE_DIR}" )

#
# Project modules
#

add_subdirectory(src)
# add_subdirectory(source)
# add_subdirectory(docs)
# add_subdirectory(deploy)


#
# Deployment (global project files)
#

# Install version file
# install(FILES "${PROJECT_BINARY_DIR}/VERSION" DESTINATION ${INSTALL_ROOT} COMPONENT runtime)

# # Install cmake find script for the project
# install(FILES ${META_PROJECT_NAME}-config.cmake DESTINATION ${INSTALL_ROOT} COMPONENT dev)

# # Install the project meta files
# install(FILES AUTHORS   DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
# install(FILES LICENSE   DESTINATION ${INSTALL_ROOT} COMPONENT runtime)
# install(FILES README.md DESTINATION ${INSTALL_ROOT} COMPONENT runtime)

# # Install runtime data
# install(DIRECTORY ${PROJECT_SOURCE_DIR}/data DESTINATION ${INSTALL_DATA} COMPONENT runtime)

#
# Dependency Management
#

# Catch

include(CTest)
add_subdirectory(tests)
enable_testing()