Enable generating deb, rpm, NuGet, tgz, zip package through cmake build

CMakeLists.txt

@@ -445,3 +445,7 @@ install(
  EXPORT "${PROJECT_NAME}-target"
  NAMESPACE "${PROJECT_NAME}::"
  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
+
+if (BUILD_PACKAGE AND UNIX AND NOT APPLE)
+ include (cmake/package.cmake)
+endif()

cmake/ParseOsRelease.cmake

@@ -0,0 +1,22 @@
+# Parse /etc/os-release to determine Linux distro
+
+if(EXISTS /etc/os-release)
+file(STRINGS /etc/os-release OS_RELEASE)
+foreach(NameAndValue ${OS_RELEASE})
+ # Strip leading spaces
+ string(REGEX REPLACE "^[ ]+" "" NameAndValue ${NameAndValue})
+ # Find variable name
+ string(REGEX MATCH "^[^=]+" Name ${NameAndValue})
+ # Find the value
+ string(REPLACE "${Name}=" "" Value ${NameAndValue})
+ # Strip quotes from value
+ string(REPLACE "\"" "" Value ${Value})
+ # Set the variable
+ message("-- /etc/os_release : ${Name}=${Value}")
+ set("OS_RELEASE_${Name}" "${Value}")
+endforeach()
+else()
+ set("OS_RELEASE_NAME" ${CMAKE_SYSTEM_NAME})
+ set("OS_RELEASE_ID" ${CMAKE_SYSTEM_NAME})
+ set("OS_RELEASE_VERSION_ID" "1.0")
+endif()

cmake/package.cmake

@@ -0,0 +1,45 @@
+
+if (UNIX AND NOT APPLE)
+ include(CPack)
+ set(CMAKE_PROJECT_NAME "opentelemetry-cpp")
+ set(CPACK_SYSTEM_NAME "${OS_RELEASE_ID}-${OS_RELEASE_VERSION_ID}")
+ set(CPACK_PACKAGING_INSTALL_PREFIX "/usr/local")
+ set(CPACK_PACKAGE_DESCRIPTION "OpenTelemetry C++ for Linux")
+ set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "OpenTelemetry C++ for Linux - C++ Implementation of OpenTelemetry Specification")
+ set(CPACK_PACKAGE_VENDOR "OpenTelemetry")
+ set(CPACK_PACKAGE_CONTACT "OpenTelemetry-cpp")
+ set(CPACK_PACKAGE_HOMEPAGE_URL "https://opentelemetry.io/")
+ set(CPACK_PACKAGE_VERSION_MAJOR "${PROJECT_VERSION_MAJOR}")
+ set(CPACK_PACKAGE_VERSION_MINOR "${PROJECT_VERSION_MINOR}")
+ set(CPACK_PACKAGE_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
+
+ set(CPACK_PACKAGE_FILE_NAME "${CMAKE_PROJECT_NAME}-${MAJOR_VERSION}.${MINOR_VERSION}.${PATCH_VERSION}-${CPACK_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
+
+ include(cmake/ParseOsRelease.cmake)
+ execute_process(
+ COMMAND lsb_release -si
+ OUTPUT_VARIABLE distribution
+ OUTPUT_STRIP_TRAILING_WHITESPACE
+ )
+ if (distribution STREQUAL "")
+ set(distribution ${OS_RELEASE_NAME})
+ endif()
+ if(distribution STREQUAL "Debian" OR distribution STREQUAL "Ubuntu")
+ set(CPACK_GENERATOR "DEB")
+ set(INSTALL_LIB_DIR
+ ${CMAKE_INSTALL_PREFIX}/lib/${CPACK_DEBIAN_ARCHITECTURE}-linux-gnu)
+ set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
+ set(CPACK_DEBIAN_ARCHITECTURE ${CMAKE_SYSTEM_PROCESSOR})
+ #set(CPACK_COMPONENTS_ALL headers libraries)
+ set (CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
+ message("-- Package name: ${CPACK_PACKAGE_FILE_NAME}.deb")
+ elseif(
+ distribution MATCHES "RedHat.*"
+ OR distribution MATCHES "openSUSE.*"
+ OR distribution STREQUAL "Fedora")
+ set(CPACK_GENERATOR "RPM")
+ set(INSTALL_LIB_DIR
+ ${CMAKE_INSTALL_PREFIX}/lib/${CMAKE_SYSTEM_PROCESSOR}-linux-gnu)
+ set(CPACK_RPM_PACKAGE_LICENSE "Apache-2.0")
+ endif()
+endif()