cmake: extract BuildRocksDB into BuildRocksDB.cmake

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/cmake/modules/BuildRocksDB.cmake b/cmake/modules/BuildRocksDB.cmake
new file mode 100644 (file)
index 0000000..bf8c34a
--- /dev/null
+++ b/cmake/modules/BuildRocksDB.cmake
@@ -0,0 +1,48 @@
+function(do_build_rocksdb)
+    set(ROCKSDB_CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON)
+
+  if(ALLOCATOR STREQUAL "jemalloc")
+    list(APPEND ROCKSDB_CMAKE_ARGS -DWITH_JEMALLOC=ON)
+  endif()
+
+  if (WITH_CCACHE AND CCACHE_FOUND)
+    list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER=ccache)
+    list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER_ARG1=${CMAKE_CXX_COMPILER})
+  else()
+    list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER})
+  endif()
+
+  list(APPEND ROCKSDB_CMAKE_ARGS -DPORTABLE=ON)
+  list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_AR=${CMAKE_AR})
+  list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE})
+
+  if (CMAKE_CXX_COMPILER_ID STREQUAL Clang)
+    list(APPEND ROCKSDB_CMAKE_ARGS -DFAIL_ON_WARNINGS=OFF)
+  endif()
+
+  # we use an external project and copy the sources to bin directory to ensure
+  # that object files are built outside of the source tree.
+  include(ExternalProject)
+  ExternalProject_Add(rocksdb_ext
+    SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/rocksdb
+    CMAKE_ARGS ${ROCKSDB_CMAKE_ARGS}
+    BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/rocksdb
+    BUILD_COMMAND $(MAKE) rocksdb
+    INSTALL_COMMAND "true")
+
+  # force rocksdb make to be called on each time
+  ExternalProject_Add_Step(rocksdb_ext forcebuild
+    DEPENDEES configure
+    DEPENDERS build
+    COMMAND "true"
+    ALWAYS 1)
+endfunction()
+
+macro(build_rocksdb)
+  do_build_rocksdb()
+  add_library(rocksdb STATIC IMPORTED)
+  add_dependencies(rocksdb rocksdb_ext)
+  set_property(TARGET rocksdb PROPERTY IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/rocksdb/librocksdb.a")
+  set(ROCKSDB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/rocksdb/include)
+  set(ROCKSDB_LIBRARIES rocksdb)
+endmacro()

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1f5b8d8aac57c7ecd98fe039dd871fc70bfae2bc..c564416f6f22a480072d168cfe0831e4300d4489 100644 (file)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -813,52 +813,9 @@ install(TARGETS ceph-mon DESTINATION bin)
 # OSD/ObjectStore
 # make rocksdb statically
 
-if (NOT WITH_SYSTEM_ROCKSDB)
-  set(ROCKSDB_CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON)
-
-  if(ALLOCATOR STREQUAL "jemalloc")
-    list(APPEND ROCKSDB_CMAKE_ARGS -DWITH_JEMALLOC=ON)
-  endif()
-
-  if (WITH_CCACHE AND CCACHE_FOUND)
-    list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER=ccache)
-    list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER_ARG1=${CMAKE_CXX_COMPILER})
-  else(WITH_CCACHE AND CCACHE_FOUND)
-    list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER})
-  endif(WITH_CCACHE AND CCACHE_FOUND)
-
-  list(APPEND ROCKSDB_CMAKE_ARGS -DPORTABLE=ON)
-  list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_AR=${CMAKE_AR})
-  list(APPEND ROCKSDB_CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE})
-
-  if (CMAKE_CXX_COMPILER_ID STREQUAL Clang)
-    list(APPEND ROCKSDB_CMAKE_ARGS -DFAIL_ON_WARNINGS=OFF)
-  endif()
-
-  # we use an external project and copy the sources to bin directory to ensure
-  # that object files are built outside of the source tree.
-  include(ExternalProject)
-  ExternalProject_Add(rocksdb_ext
-    SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/rocksdb
-    CMAKE_ARGS ${ROCKSDB_CMAKE_ARGS}
-    BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/rocksdb
-    BUILD_COMMAND $(MAKE) rocksdb
-    INSTALL_COMMAND "true")
-
-  # force rocksdb make to be called on each time
-  ExternalProject_Add_Step(rocksdb_ext forcebuild
-    DEPENDEES configure
-    DEPENDERS build
-    COMMAND "true"
-    ALWAYS 1)
-
-  set(ROCKSDB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/rocksdb/include)
-
-  add_library(rocksdb STATIC IMPORTED)
-  add_dependencies(rocksdb rocksdb_ext)
-  set_property(TARGET rocksdb PROPERTY IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/rocksdb/librocksdb.a")
-  set(ROCKSDB_LIBRARIES rocksdb)
-
+if(NOT WITH_SYSTEM_ROCKSDB)
+  include(BuildRocksDB)
+  build_rocksdb()
 endif(NOT WITH_SYSTEM_ROCKSDB)
 
 include(TestBigEndian)