Merge pull request #2748 from typhoonzero/add_golang_precommit

Add golang precommit

.pre-commit-config.yaml

@@ -21,3 +21,10 @@
     sha: 28c0ea8a67a3e2dbbf4822ef44e85b63a0080a29
     hooks:
     -   id: clang-formater
+-   repo: https://github.com/dnephin/pre-commit-golang
+    sha: e4693a4c282b4fc878eda172a929f7a6508e7d16
+    hooks:
+      -   id: go-fmt
+          files: (.*\.go)
+      -   id: go-lint
+          files: (.*\.go)

.travis.yml

@@ -37,12 +37,13 @@ before_install:
   # protobuf version.
   - pip install numpy wheel 'protobuf==3.1' sphinx==1.5.6 recommonmark sphinx-rtd-theme==0.1.9 virtualenv pre-commit requests==2.9.2 LinkChecker
   - pip install rarfile
+  - curl https://glide.sh/get | bash
   - eval "$(GIMME_GO_VERSION=1.8.3 gimme)"
   - |
     function timeout() { perl -e 'alarm shift; exec @ARGV' "$@"; }
 script:
   - |
-    export WITH_GOLANG=ON && timeout 2580 paddle/scripts/travis/${JOB}.sh # 43min timeout
+    timeout 2580 paddle/scripts/travis/${JOB}.sh # 43min timeout
     RESULT=$?; if [ $RESULT -eq 0 ] || [ $RESULT -eq 142 ]; then true; else false; fi;
 notifications:
   email:

cmake/generic.cmake

@@ -192,7 +192,7 @@ function(cc_test TARGET_NAME)
     set(multiValueArgs SRCS DEPS)
     cmake_parse_arguments(cc_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
     add_executable(${TARGET_NAME} ${cc_test_SRCS})
-    target_link_libraries(${TARGET_NAME} ${cc_test_DEPS} gtest gtest_main -lstdc++ -lm)
+    target_link_libraries(${TARGET_NAME} ${cc_test_DEPS} gtest gtest_main)
     add_dependencies(${TARGET_NAME} ${cc_test_DEPS} gtest gtest_main)
     add_test(NAME ${TARGET_NAME} COMMAND ${TARGET_NAME} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
   endif()
@@ -285,7 +285,7 @@ function(go_library TARGET_NAME)
   add_custom_command(TARGET ${TARGET_NAME} POST_BUILD
     COMMAND rm "${${TARGET_NAME}_LIB_PATH}"
     # Golang build source code
-    COMMAND env LIBRARY_PATH=${CMAKE_BINARY_DIR}/go/pserver/client/c/:$ENV{LIBRARY_PATH} GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} build ${BUILD_MODE}
+    COMMAND GOPATH=${GOPATH} ${CMAKE_Go_COMPILER} build ${BUILD_MODE}
     -o "${${TARGET_NAME}_LIB_PATH}"
     "./${CMAKE_CURRENT_SOURCE_REL_DIR}/${GO_SOURCE}"
     # must run under GOPATH

go/pserver/client/c/CMakeLists.txt

 cc_library(paddle_go_optimizer DEPS paddle_optimizer paddle_proto glog gflags protobuf)
+target_link_libraries(paddle_go_optimizer stdc++ m)
 go_library(paddle_pserver_cclient STATIC DEPS paddle_go_optimizer)
 if(WITH_TESTING)
-    # TODO: add unit test
-    #add_subdirectory(test)
+  # FIXME: this test requires pserver which is not managed by the test
+  # we need some kind of e2e testing machanism.
+  # add_subdirectory(test)
 endif()

go/pserver/optimizer.go

 package pserver
 
 // #cgo CFLAGS: -I ../../
-// #cgo LDFLAGS: -lpaddle_go_optimizer -lstdc++ -lm
+// //FIXME: ldflags contain "build" path
+// #cgo LDFLAGS: ${SRCDIR}/../../build/go/pserver/client/c/libpaddle_go_optimizer.a -lstdc++ -lm
 // #include "paddle/optimizer/optimizer.h"
 // #include <stdlib.h>
 // #include <string.h>
@@ -55,8 +56,8 @@ func newOptimizer(paramWithConfigs ParameterWithConfig) *optimizer {
 
 func (o *optimizer) GetWeights() []byte {
 	var buffer unsafe.Pointer
-	buffer_len := C.paddle_optimizer_get_weights(o.opt, &buffer)
-	return cArrayToSlice(buffer, int(buffer_len)*C.sizeof_float)
+	bufferLen := C.paddle_optimizer_get_weights(o.opt, &buffer)
+	return cArrayToSlice(buffer, int(bufferLen)*C.sizeof_float)
 }
 
 func (o *optimizer) UpdateParameter(g Gradient) error {

go/pserver/service.go

@@ -10,7 +10,9 @@ import (
 type ElementType int
 
 const (
+	// AlreadyInitialized is true if pserver is initialized
 	AlreadyInitialized = "pserver already initialized"
+	// Uninitialized is true if pserver not fully initialized
 	Uninitialized = "pserver not fully initialized"
 )
 

paddle/scripts/travis/build_doc.sh

@@ -5,13 +5,14 @@ set -e
 mkdir -p $TRAVIS_BUILD_DIR/build
 cd $TRAVIS_BUILD_DIR/build
 
-# Compile Documentation only.
-cmake .. -DCMAKE_BUILD_TYPE=Debug -DWITH_GPU=OFF -DWITH_DOC=OFF -DWITH_STYLE_CHECK=OFF
+# Compile paddle binaries first
+cmake .. -DCMAKE_BUILD_TYPE=Debug -DWITH_GPU=OFF -DWITH_DOC=OFF -DWITH_GOLANG=ON -DWITH_STYLE_CHECK=OFF
 
 mkdir output
 make -j `nproc`
 find .. -name '*whl' | xargs pip install  # install all wheels.
 rm -rf *
+# Compile Documentation only.
 cmake .. -DCMAKE_BUILD_TYPE=Debug -DWITH_GPU=OFF -DWITH_DOC=ON
 make -j `nproc` paddle_docs paddle_docs_cn