From 30b75a51035dee978225f5e5eff2c0d4b9c09aec Mon Sep 17 00:00:00 2001
From: Yu Yang <yuyang18@baidu.com>
Date: Wed, 28 Jun 2017 22:05:04 +0800
Subject: [PATCH] Also add pb_py_library

---
 cmake/generic.cmake  | 31 ++++++++++++++++++++++++-------
 proto/CMakeLists.txt | 30 ++----------------------------
 2 files changed, 26 insertions(+), 35 deletions(-)

diff --git a/cmake/generic.cmake b/cmake/generic.cmake
index 0370ab31f3..14b6909829 100644
--- a/cmake/generic.cmake
+++ b/cmake/generic.cmake
@@ -341,13 +341,6 @@ function(pb_cc_library TARGET_NAME)
   foreach(FIL ${pb_cc_library_SRCS})
     get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
     get_filename_component(FIL_WE ${FIL} NAME_WE)
-    if(NOT PROTOBUF_GENERATE_CPP_APPEND_PATH)
-      get_filename_component(FIL_DIR ${FIL} DIRECTORY)
-      if(FIL_DIR)
-        set(FIL_WE "${FIL_DIR}/${FIL_WE}")
-      endif()
-    endif()
-
     list(APPEND proto_srcs "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.cc")
     list(APPEND proto_hdrs "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
 
@@ -363,4 +356,28 @@ function(pb_cc_library TARGET_NAME)
   set_source_files_properties(${proto_srcs} ${proto_hdrs} PROPERTIES GENERATED TRUE)
   include_directories(${CMAKE_CURRENT_BINARY_DIR})
   cc_library(${TARGET_NAME} SRCS ${proto_srcs})
+endfunction()
+
+function(pb_py_library TARGET_NAME)
+  set(oneValueArgs TARGET_DIR)
+  set(multiValueArgs SRCS)
+  cmake_parse_arguments(pb_py_library "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+  if (NOT ${pb_py_library_TARGET_DIR})
+    set(pb_py_library_TARGET_DIR ${CMAKE_CURRENT_BINARY_DIR})
+  endif()
+
+  set(py_srcs)
+  foreach(FIL ${pb_py_library_SRCS})
+    get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
+    get_filename_component(FIL_WE ${FIL} NAME_WE)
+    set(cur_py_src ${pb_py_library_TARGET_DIR}/${FIL_WE}_pb2.py)
+    list(APPEND py_srcs "${cur_py_src}")
+    add_custom_command(OUTPUT ${cur_py_src}
+            COMMAND ${PROTOBUF_PROTOC_EXECUTABLE}
+            ARGS "--python_out=${pb_py_library_TARGET_DIR}" "-I" ${CMAKE_CURRENT_SOURCE_DIR} ${ABS_FIL}
+            DEPENDS ${ABS_FIL} protoc
+            COMMENT "Running Python protocol buffer compiler on ${FIL}")
+  endforeach()
+
+  add_custom_target(${TARGET_NAME} ALL DEPENDS ${py_srcs})
 endfunction()
\ No newline at end of file
diff --git a/proto/CMakeLists.txt b/proto/CMakeLists.txt
index 948d7db6b2..9b29d43d73 100644
--- a/proto/CMakeLists.txt
+++ b/proto/CMakeLists.txt
@@ -1,29 +1,3 @@
-set(proto_filenames
-    DataConfig.proto
-    DataFormat.proto
-    ModelConfig.proto
-    ParameterConfig.proto
-    ParameterService.proto
-    TrainerConfig.proto
-    OptimizerConfig.proto
-    ParameterServerConfig.proto)
-
-set(PROTO_GEN)
-set(PROTO_GEN_PY)
-
-foreach(filename ${proto_filenames})
-    get_filename_component(base_filename ${filename} NAME_WE)
-    set(CUR_PROTO_GEN_PY
-        ${PROJ_ROOT}/paddle/python/paddle/proto/${base_filename}_pb2.py)
-    set(PROTO_GEN_PY
-        ${CUR_PROTO_GEN_PY}
-        ${PROTO_GEN_PY})
-    add_custom_command(OUTPUT ${CUR_PROTO_GEN_PY}
-        COMMAND env ${py_env} ${PROTOBUF_PROTOC_EXECUTABLE} --python_out ${PROJ_ROOT}/python/paddle/proto
-    --proto_path ${PROJ_ROOT}/proto ${PROJ_ROOT}/proto/${filename}
-        DEPENDS ${filename} ${external_project_dependencies})
-endforeach()
-
-add_custom_target(gen_proto_py ALL DEPENDS ${PROTO_GEN_PY})
-
+file(GLOB proto_filenames . *.proto)
 pb_cc_library(paddle_proto SRCS ${proto_filenames})
+pb_py_library(gen_proto_py SRCS ${proto_filenames} TARGET_DIR ${CMAKE_CURRENT_SOURCE_DIR})
-- 
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