Update CMake logic making external libs global
[apps/low-level-can-service.git] / CMakeLists.txt
index 9334292..b33faff 100644 (file)
@@ -1,8 +1,8 @@
 ###########################################################################
-# Copyright 2016 IoT.bzh
+# Copyright 2015, 2016, 2017 IoT.bzh
 #
-# author: José Bollo <jose.bollo@iot.bzh>
-# author: Stéphane Desneux <stephane.desneux@iot.bzh>
+# author: Fulup Ar Foll <fulup@iot.bzh>
+# contrib: Romain Forlot <romain.forlot@iot.bzh>
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # limitations under the License.
 ###########################################################################
 
-project(ll-can)
 
-cmake_minimum_required(VERSION 3.3)
+#--------------------------------------------------------------------------
+#  WARNING: 
+#     Do not change this cmake template
+#     Customise your preferences in "./etc/config.cmake"
+#--------------------------------------------------------------------------
 
-include(GNUInstallDirs)
 
-set(PROJECT_VERSION "0.1")
-set(PROJECT_ICON "icon.png")
-set(PROJECT_LIBDIR "libs")
+# Generic useful macro
+# -----------------------
+macro(PROJECT_TARGET_ADD TARGET_NAME)
+       set(PROJECT_TARGETS ${PROJECT_TARGETS} ${TARGET_NAME} CACHE INTERNAL PROJECT_TARGETS)
+       set(TARGET_NAME ${TARGET_NAME})
+endmacro(PROJECT_TARGET_ADD)
 
-set(CMAKE_BUILD_TYPE Debug)
+macro(defstr name value)
+       add_definitions(-D${name}=${value})
+endmacro(defstr)
 
-###########################################################################
+macro(setc name value)
+       if(NOT DEFINED ${name})
+       set(${name} ${value})
+       endif(NOT DEFINED ${name})
+endmacro(setc)
 
-link_libraries(-Wl,--as-needed -Wl,--gc-sections)
+# Dumb macro to add each directory under a path. Make sure we grab all header files!
+macro(fill_include_dir path)
+       file(GLOB_RECURSE dirlist LIST_DIRECTORIES true "${path}/*")
+       foreach(filename ${dirlist})
+               if(IS_DIRECTORY ${filename})
+                       include_directories(${filename})
+               endif(IS_DIRECTORY ${filename})
+       endforeach()
+endmacro(fill_include_dir)
+
+# Helper function to retrieve source files from a library repo.
+function(find_source_files path)
+       file(GLOB_RECURSE filelist "${path}/*.[cpx]")
+       foreach(filename ${filelist})
+               if(NOT ${filename} MATCHES ".*(test|example|sample).*")
+                       string(APPEND sources "${filename};")
+               endif(NOT ${filename} MATCHES ".*(test|example|sample).*")
+       endforeach()
+       set(sources_files ${sources} PARENT_SCOPE)
+endfunction(find_source_files)
+
+# WGT packaging function. TYPE can be HTML5, NATIVE, HTML5-HYBRID or BINDING
+macro(build_widget type)
+       message(STATUS "Creation of ${TARGET_NAME}.wgt package for AppFW")
+
+       configure_file(${PROJECT_WGT_DIR}/config.xml config.xml)
+
+       if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_WGT_DIR}/etc")
+               file(GLOB conf_files "${PROJECT_WGT_DIR}/etc/*")
+               foreach(filename ${conf_files})
+                       STRING(REGEX REPLACE "^.*/(.*)$" "\\1" shortname ${filename})
+                       message(STATUS "Copying config file ${shortname}")
+                       configure_file(${filename} ${shortname})
+               endforeach()
+       endif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_WGT_DIR}/etc")
+
+       # Include HTML5 files to be packaged
+       if(${type} STREQUAL "HTML5")
+               file(GLOB_RECURSE HTML5FILES app/*)
+
+               if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/gulpfile.js")
+                       set(HTML5FILES ${HTML5FILES} "${CMAKE_CURRENT_SOURCE_DIR}/gulpfile.js")
+               endif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/gulpfile.js")
+
+               if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/bower.json")
+                       set(HTML5FILES ${HTML5FILES} "${CMAKE_CURRENT_SOURCE_DIR}/bower.json")
+               endif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/bower.json")
+
+               if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/package.json")
+                       set(HTML5FILES ${HTML5FILES} "${CMAKE_CURRENT_SOURCE_DIR}/package.json")
+               endif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/package.json")
+       endif(${type} STREQUAL "HTML5")
+
+       if(${type} STREQUAL "HTML5")
+               add_custom_command(
+                       OUTPUT ${TARGET_NAME}.wgt
+                       DEPENDS ${HTML5FILES} ${PROJECT_WGT_DIR}/config.xml
+                       COMMAND rm -rf package
+                       COMMAND mkdir -p package/lib package/htdocs package/etc package/bin
+                       COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && gulp widget-config-prod
+                       COMMAND cp -a dist.prod/* ${CMAKE_CURRENT_BINARY_DIR}/package/htdocs
+               )
+       endif(${type} STREQUAL "HTML5")
+
+       if(${type} STREQUAL "HTML5-HYBRID")
+               add_custom_command(
+                       OUTPUT ${TARGET_NAME}.wgt
+                       DEPENDS ${HTML5FILES} ${PROJECT_WGT_DIR}/config.xml 
+                       COMMAND rm -rf package
+                       COMMAND mkdir -p package/lib package/htdocs package/etc package/bin
+                       COMMAND cp ${TARGET_NAME}.so package/lib
+               )
+       endif(${type} STREQUAL "HTML5-HYBRID")
+
+       if(${type} STREQUAL "BINDING")
+               add_custom_command(
+                       OUTPUT ${TARGET_NAME}.wgt
+                       DEPENDS ${PROJECT_WGT_DIR}/config.xml
+                       COMMAND rm -rf package
+                       COMMAND mkdir -p package/lib package/htdocs package/etc package/bin
+                       COMMAND cp ${TARGET_NAME}.so package/lib
+               )
+       endif(${type} STREQUAL "BINDING")
+
+       if(${type} STREQUAL "NATIVE")
+               add_custom_command(
+                       OUTPUT ${TARGET_NAME}.wgt
+                       DEPENDS ${PROJECT_WGT_DIR}/config.xml
+                       COMMAND rm -rf package
+                       COMMAND mkdir -p package/lib package/htdocs package/etc package/bin
+                       COMMAND cp ${TARGET_NAME} package/bin
+               )
+       endif(${type} STREQUAL "NATIVE")
+
+       add_custom_command(
+               OUTPUT ${TARGET_NAME}.wgt
+               COMMAND cp config.xml package/
+               COMMAND cp ${conf_files} package/etc
+               COMMAND cp ${CMAKE_CURRENT_SOURCE_DIR}/packaging/wgt/${PROJECT_ICON} package/icon.png
+               COMMAND wgtpkg-pack -f -o ${TARGET_NAME}.wgt package
+               APPEND
+       )
+       add_custom_target(widget ALL DEPENDS ${TARGET_NAME}.wgt)
+endmacro()
 
+CMAKE_MINIMUM_REQUIRED(VERSION 3.3)
+setc(CMAKE_BUILD_TYPE Debug)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+set(CMP0048 1)
+
+# Compiler selection should append before project definition
+# -----------------------------------------------------------
+foreach (GCC_VERSION "6" "5")
+       execute_process(COMMAND gcc-${GCC_VERSION} -dumpversion RESULT_VARIABLE GCCRC OUTPUT_QUIET ERROR_QUIET)
+       if(GCCRC EQUAL 0)
+               set(CMAKE_C_COMPILER "gcc-${GCC_VERSION}")
+               set(CMAKE_CXX_COMPILER "g++-${GCC_VERSION}")
+               set(CMAKE_C_VERSION ${GCC_VERSION})
+               break()
+       endif(GCCRC EQUAL 0)
+endforeach(GCC_VERSION)
+
+# Include project configuration
+# ------------------------------
+include(${CMAKE_CURRENT_SOURCE_DIR}/etc/config.cmake)
+project(${NAME} VERSION ${VERSION})
+setc(PROJECT_PRETTY_NAME "${PRETTY_NAME}")
+setc(PROJECT_DESCRIPTION "${DESCRIPTION}")
+setc(PROJECT_WGT_DIR "packaging/wgt")
+setc(PROJECT_LIBDIR "libs")
+setc(PROJECT_RESOURCES "data")
+
+message(STATUS "")
+message(STATUS "Project=${PROJECT_NAME}/${VERSION}[${PRETTY_NAME} ${DESCRIPTION}]")
+message(STATUS "")
+message(STATUS "gcc/g++ version-${CMAKE_C_VERSION}.x selected")
+
+INCLUDE(FindPkgConfig)
+INCLUDE(CheckIncludeFiles)
+INCLUDE(CheckLibraryExists)
+INCLUDE(GNUInstallDirs)
+
+# Default compilation options
+############################################################################
+link_libraries(-Wl,--as-needed -Wl,--gc-sections)
 add_compile_options(-Wall -Wextra -Wconversion)
 add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
+add_compile_options(-Wno-sign-compare -Wno-sign-conversion)
 add_compile_options(-Werror=maybe-uninitialized)
 add_compile_options(-Werror=implicit-function-declaration)
 add_compile_options(-ffunction-sections -fdata-sections)
-add_compile_options(-Wl,--as-needed -Wl,--gc-sections)
 add_compile_options(-fPIC)
+add_compile_options(-g)
 
-set(CMAKE_C_FLAGS_PROFILING    "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
-set(CMAKE_C_FLAGS_DEBUG        "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
-set(CMAKE_C_FLAGS_RELEASE      "-g -O2")
-set(CMAKE_C_FLAGS_CCOV         "-g -O2 --coverage")
+setc(CMAKE_C_FLAGS_PROFILING   "-g -O2 -pg -Wp,-U_FORTIFY_SOURCE")
+setc(CMAKE_C_FLAGS_DEBUG       "-g -O2 -ggdb -Wp,-U_FORTIFY_SOURCE")
+setc(CMAKE_C_FLAGS_RELEASE     "-O2")
+setc(CMAKE_C_FLAGS_CCOV        "-g -O2 --coverage")
+setc(CMAKE_INSTALL_PREFIX      "${CMAKE_SOURCE_DIR}/Install")
 
-###########################################################################
+# (BUG!!!) as PKG_CONFIG_PATH does not work [should be en env variable]
+setc(PKG_CONFIG_USE_CMAKE_PREFIX_PATH 1)
 
-include(FindPkgConfig)
+# Loop on required package and add options
+foreach (PKG_CONFIG ${PKG_REQUIRED_LIST})
+       PKG_CHECK_MODULES(${PKG_CONFIG} REQUIRED ${PKG_CONFIG})
 
-pkg_check_modules(EXTRAS REQUIRED json-c afb-daemon)
-add_compile_options(${EXTRAS_CFLAGS})
-include_directories(${EXTRAS_INCLUDE_DIRS} ${PROJECT_LIBDIR}/openxc-message-format/gen/cpp ${PROJECT_LIBDIR}/nanopb/)
-link_libraries(${EXTRAS_LIBRARIES})
+       INCLUDE_DIRECTORIES(${${PKG_CONFIG}_INCLUDE_DIRS})
+       list (APPEND link_libraries ${${PKG_CONFIG}_LIBRARIES})
+       add_compile_options (${${PKG_CONFIG}_CFLAGS})
+endforeach(PKG_CONFIG)
 
-###########################################################################
-# the binding for afb
+# Optional LibEfence Malloc debug library
+IF(CMAKE_BUILD_TYPE MATCHES DEBUG)
+CHECK_LIBRARY_EXISTS(efence malloc "" HAVE_LIBEFENCE)
+IF(HAVE_LIBEFENCE)
+       MESSAGE(STATUS "Linking with ElectricFence for debugging purposes...")
+       SET(libefence_LIBRARIES "-lefence")
+       list (APPEND link_libraries libefence_LIBRARIES})
+ENDIF(HAVE_LIBEFENCE)
+ENDIF(CMAKE_BUILD_TYPE MATCHES DEBUG)
 
-message(STATUS "Creation of ${PROJECT_NAME} binding for AFB-DAEMON")
-###########################################################################
-add_library(${PROJECT_NAME}-binding MODULE ${PROJECT_NAME}-binding.c)
+# set default include directories
+#INCLUDE_DIRECTORIES(${EXTRA_INCLUDE_DIRS})
+# Brutal but efficace:
+fill_include_dir(${CMAKE_CURRENT_SOURCE_DIR})
 
-set_target_properties(${PROJECT_NAME}-binding PROPERTIES
-       PREFIX ""
-       LINK_FLAGS "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/export.map"
-)
+# If no install dir try to guest some smart default
+if(BINDINGS_INSTALL_PREFIX)
+       set(BINDINGS_INSTALL_DIR ${BINDINGS_INSTALL_PREFIX}/${PROJECT_NAME})
+else()
+       set(BINDINGS_INSTALL_DIR ${CMAKE_INSTALL_FULL_LIBDIR}/${PROJECT_NAME})
+endif()
 
-###########################################################################
-# WGT packaging
-
-message(STATUS "Creation of ${PROJECT_NAME}.wgt package for AppFW")
-###############################################################
-configure_file(config.xml.in config.xml)
-
-add_custom_command(
-       OUTPUT ${PROJECT_NAME}.wgt
-       DEPENDS ${PROJECT_NAME}-binding
-       COMMAND rm -rf package
-       COMMAND mkdir -p package/${PROJECT_LIBDIR} package/htdocs
-       COMMAND cp config.xml package/
-       COMMAND cp ${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_ICON} package/icon.png
-       COMMAND cp ${PROJECT_NAME}-binding.so package
-       COMMAND wgtpkg-pack -f -o ${PROJECT_NAME}.wgt package
-)
-add_custom_target(widget ALL DEPENDS ${PROJECT_NAME}.wgt)
+# Default Linkflag
+if(NOT BINDINGS_LINK_FLAG)
+       set(BINDINGS_LINK_FLAG "-Wl,--version-script=${CMAKE_SOURCE_DIR}/etc/export.map")
+endif()
+
+# Bindings to compile
+# --------------------
+file(GLOB filelist "*")
+foreach(filename ${filelist})
+if(EXISTS "${filename}/CMakeLists.txt")
+       add_subdirectory(${filename})
+endif(EXISTS "${filename}/CMakeLists.txt")
+endforeach()
+
+# Add a dummy target to enable global dependency order
+# -----------------------------------------------------
+if(EXTRA_DEPENDENCIES_ORDER)
+       set(DEPENDENCIES_TARGET ${PROJECT_NAME}_extra_dependencies)
+       add_custom_target(${DEPENDENCIES_TARGET} ALL
+               DEPENDS ${EXTRA_DEPENDENCY_ORDER} 
+       )
+endif()
+
+# Cmake does not maintain targets list before 3.7
+# -------------------------------------------------
+if(${CMAKE_VERSION} VERSION_LESS 3.7)
+       set(GLOBAL_TARGET_LIST ${PROJECT_TARGETS})
+else()
+       get_property(GLOBAL_TARGET_LIST GLOBAL PROPERTY GlobalTargetList)
+endif()
+
+# Print developer helper message when everything is done
+# -------------------------------------------------------
+if(CLOSING_MESSAGE AND GLOBAL_TARGET_LIST)
+       add_custom_target(${PROJECT_NAME}_done ALL
+               DEPENDS ${DEPENDENCIES_TARGET} ${GLOBAL_TARGET_LIST}
+               COMMAND ${CMAKE_COMMAND} -E cmake_echo_color --cyan "++ ${CLOSING_MESSAGE}"
+       )
+endif()