build: various improvements

- add option to install only host tools
- add option to specify lib and runtime dir

Type: improvement

Change-Id: I6356b52df459120fc9b0127948bae7679fb10e52
Signed-off-by: Damjan Marion <damarion@cisco.com>

extras/libmemif/CMakeLists.txt

@@ -19,15 +19,6 @@ set(CMAKE_C_STANDARD 11)
 include(CheckCCompilerFlag)
 include(CheckFunctionExists)
 
-set(VPP_SRC "${CMAKE_CURRENT_SOURCE_DIR}/../../src")
-execute_process(
-  COMMAND find ${VPP_SRC} -type d -name "cmake"
-  OUTPUT_VARIABLE CMAKE_DEPS_FOLDER
-  OUTPUT_STRIP_TRAILING_WHITESPACE
-)
-include(${CMAKE_DEPS_FOLDER}/library.cmake)
-include(${CMAKE_DEPS_FOLDER}/pack.cmake)
-
 if (NOT CMAKE_BUILD_TYPE)
   message(STATUS "No build type selected, default to Release")
   set(CMAKE_BUILD_TYPE "Release")
@@ -47,7 +38,6 @@ if(${HAVE_MEMFD_CREATE})
 endif()
 
 include_directories(src)
-set(LIBMEMIF memif)
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 find_package(Check 0.10.0)
@@ -61,8 +51,80 @@ endif ()
 add_subdirectory(src)
 add_subdirectory(examples)
 
-add_vpp_packaging(
-  NAME "memif"
-  VENDOR "fd.io"
-  DESCRIPTION "Shared Memory Interface"
+##############################################################################
+# Packaging
+##############################################################################
+
+# parse /etc/os-release
+file(READ "/etc/os-release" os_version)
+string(REPLACE "\n" ";" os_version ${os_version})
+foreach(_ver ${os_version})
+  string(REPLACE "=" ";" _ver ${_ver})
+  list(GET _ver 0 _name)
+  list(GET _ver 1 _value)
+  set(OS_${_name} ${_value})
+endforeach()
+
+  # extract version from git
+execute_process(
+  COMMAND git describe --long --match v*
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+  OUTPUT_VARIABLE VER
+  OUTPUT_STRIP_TRAILING_WHITESPACE
 )
+string(REGEX REPLACE "v(.*)-([0-9]+)-(g[0-9a-f]+)" "\\1;\\2;\\3" VER ${VER})
+list(GET VER 0 tag)
+list(GET VER 1 commit_num)
+list(GET VER 2 commit_name)
+
+#define DEB and RPM version numbers
+if(${commit_num} EQUAL 0)
+  set(deb_ver "${tag}")
+  set(rpm_ver "${tag}")
+else()
+  if (DEFINED ENV{BUILD_NUMBER})
+    set(deb_ver "${tag}~${commit_num}-${commit_name}~b$ENV{BUILD_NUMBER}")
+    set(rpm_ver "${tag}~${commit_num}_${commit_name}~b$ENV{BUILD_NUMBER}")
+  else()
+    set(deb_ver "${tag}~${commit_num}-${commit_name}")
+    set(rpm_ver "${tag}~${commit_num}_${commit_name}")
+  endif()
+endif()
+
+set(CPACK_PACKAGE_NAME "memif")
+set(CPACK_STRIP_FILES OFF)
+set(CPACK_PACKAGE_VENDOR "fd.io")
+set(CPACK_COMPONENTS_IGNORE_GROUPS 1)
+set(CPACK_${CPACK_GENERATOR}_COMPONENT_INSTALL ON)
+set(CPACK_${type}_PACKAGE_DESCRIPTION "memif Shared Memory Interface")
+set(CPACK_${type}_PACKAGE_RELEASE 1)
+
+if(OS_ID_LIKE MATCHES "debian")
+  set(CPACK_GENERATOR "DEB")
+  set(type "DEBIAN")
+  set(CPACK_PACKAGE_VERSION "${deb_ver}")
+  set(CPACK_DEBIAN_PACKAGE_MAINTAINER "VPP Team")
+  execute_process(
+    COMMAND dpkg --print-architecture
+    OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+  set(CPACK_PACKAGE_FILE_NAME ${CPACK_PACKAGE_NAME}_${CPACK_PACKAGE_VERSION}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE})
+elseif(OS_ID_LIKE MATCHES "rhel")
+  set(CPACK_GENERATOR "RPM")
+  set(type "RPM")
+  set(CPACK_PACKAGE_VERSION "${rpm_ver}")
+  execute_process(
+    COMMAND uname -m
+    OUTPUT_VARIABLE CPACK_RPM_PACKAGE_ARCHITECTURE
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+  set(CPACK_PACKAGE_FILE_NAME ${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}.${CPACK_RPM_PACKAGE_ARCHITECTURE})
+endif()
+
+if(CPACK_GENERATOR)
+  include(CPack)
+else()
+  message(ERROR "CPACK_GENERATOR must be set")
+endif()
+