Use CPack to build source and Debian package

Co-authored-by: Lucino772 <lucapalmi772@gmail.com>

CMakeLists.txt

@@ -4,7 +4,13 @@ project(WiringPiLib)
 # Read version from version.h
 file(READ "${CMAKE_CURRENT_SOURCE_DIR}/version.h" WIRINGPI_VERSION)
 string(REGEX REPLACE ".*VERSION \"([0-9]+.[0-9]+)\".*" "\\1" WIRINGPI_VERSION "${WIRINGPI_VERSION}")
-string(REGEX REPLACE "([0-9]+)\..*" "\\1" WIRINGPI_SOVERSION "${WIRINGPI_VERSION}")
+
+if(NOT WIRINGPI_VERSION MATCHES "([0-9]+)\.([0-9]+)")
+    message(FATAL_ERROR "Could not retrieve WiringPi versions")
+endif()
+
+set(WIRINGPI_VERSION_MAJOR ${CMAKE_MATCH_1})
+set(WIRINGPI_VERSION_MINOR ${CMAKE_MATCH_2})
 
 # Include subdirectories
 add_subdirectory(devLib)
@@ -12,3 +18,35 @@ add_subdirectory(gpio)
 #add_subdirectory(pins)
 add_subdirectory(wiringPi)
 #add_subdirectory(wiringPiD)
+
+# CPack
+set(CPACK_PACKAGE_NAME "wiringpi")
+set(CPACK_PACKAGE_DESCRIPTION
+"The wiringPi libraries, headers and gpio command
+Libraries to allow GPIO access on a Raspberry Pi from C and C++
+programs as well as from the command-line")
+
+set(CPACK_DEBIAN_PACKAGE_SECTION "libraries")
+set(CPACK_PACKAGE_HOMEPAGE_URL "https://github.com/WiringPi/WiringPi")
+set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/COPYING.LESSER")
+set(CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
+set(CPACK_PACKAGE_VERSION_MAJOR ${WIRINGPI_VERSION_MAJOR})
+set(CPACK_PACKAGE_VERSION_MINOR ${WIRINGPI_VERSION_MINOR})
+set(CPACK_PACKAGE_VERSION_PATCH "")
+
+set(CPACK_GENERATOR "DEB")
+set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
+set(CPACK_DEBIAN_PACKAGE_MAINTAINER "Grazer Computer Club - GC2 <wiringpi@gc2.at>")
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "libc6, libcrypt1")
+
+# Check for arm or arm64 architecture
+# Let CMake determine a value otherwise
+if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm")
+    set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE "armhf")
+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
+    set(CPACK_DEBIAN_PACKAGE_ARCHITECTURE "arm64")
+endif()
+
+set(CPACK_SOURCE_GENERATOR "TGZ")
+
+include(CPack)

devLib/CMakeLists.txt

@@ -31,7 +31,7 @@ target_include_directories(wiringPiDev PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(wiringPiDev PRIVATE wiringPi)
 
 # Set the library version
-set_target_properties(wiringPiDev PROPERTIES VERSION ${WIRINGPI_VERSION} SOVERSION ${WIRINGPI_SOVERSION})
+set_target_properties(wiringPiDev PROPERTIES VERSION ${WIRINGPI_VERSION} SOVERSION ${WIRINGPI_VERSION_MAJOR})
 
 # Install headers
 install(FILES ${HEADERS} DESTINATION include)

wiringPi/CMakeLists.txt

@@ -49,7 +49,7 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wformat=2 -Winline -pipe -Wfo
 add_library(wiringPi SHARED ${SRC})
 
 # Set the library version
-set_target_properties(wiringPi PROPERTIES VERSION ${WIRINGPI_VERSION} SOVERSION ${WIRINGPI_SOVERSION})
+set_target_properties(wiringPi PROPERTIES VERSION ${WIRINGPI_VERSION} SOVERSION ${WIRINGPI_VERSION_MAJOR})
 target_include_directories(wiringPi PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
 # Add -lm to link with the math library