Follow yuyang's comment

Author: gangliao

.travis.yml

@@ -1,5 +1,9 @@
 language: cpp
-cache: ccache
+cache:
+  directories:
+    - $HOME/third_party
+    - $HOME/.ccache
+    - $HOME/.cache/pip
 sudo: required
 dist: trusty
 os:
@@ -35,6 +39,7 @@ addons:
       - clang-format-3.8
       - automake
       - libtool
+      - ccache
 before_install:
   - |
     if [ ${JOB} == "BUILD_AND_TEST" ]; then

CMakeLists.txt

@@ -43,6 +43,16 @@ option(WITH_DOC         "Compile PaddlePaddle with documentation"       OFF)
 option(WITH_COVERAGE    "Compile PaddlePaddle with code coverage"       OFF)
 option(COVERALLS_UPLOAD "Package code coverage data to coveralls"       OFF)
 option(ON_TRAVIS        "Exclude special unit test on Travis CI"        OFF)
+
+# CMAKE_BUILD_TYPE
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING
+      "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel"
+      FORCE)
+endif()
+
+set(THIRD_PARTY_PATH "${PROJ_ROOT}/third_party" CACHE STRING
+  "A path setting third party libraries download & build directories.")
 ########################################################################################
 
 include(external/zlib)      # download, build, install zlib

cmake/external/gflags.cmake

@@ -14,8 +14,8 @@
 
 INCLUDE(ExternalProject)
 
-SET(GFLAGS_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/gflags)
-SET(GFLAGS_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/gflags)
+SET(GFLAGS_SOURCES_DIR ${THIRD_PARTY_PATH}/gflags)
+SET(GFLAGS_INSTALL_DIR ${THIRD_PARTY_PATH}/install/gflags)
 SET(GFLAGS_INCLUDE_DIR "${GFLAGS_INSTALL_DIR}/include" CACHE PATH "gflags include directory." FORCE)
 IF(WIN32)
     set(GFLAGS_LIBRARIES "${GFLAGS_INSTALL_DIR}/lib/gflags.lib" CACHE FILEPATH "GFLAGS_LIBRARIES" FORCE)

cmake/external/glog.cmake

@@ -14,8 +14,8 @@
 
 INCLUDE(ExternalProject)
 
-SET(GLOG_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/glog)
-SET(GLOG_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/glog)
+SET(GLOG_SOURCES_DIR ${THIRD_PARTY_PATH}/glog)
+SET(GLOG_INSTALL_DIR ${THIRD_PARTY_PATH}/install/glog)
 SET(GLOG_INCLUDE_DIR "${GLOG_INSTALL_DIR}/include" CACHE PATH "glog include directory." FORCE)
 
 IF(WIN32)

cmake/external/gtest.cmake

@@ -16,8 +16,8 @@ IF(WITH_TESTING)
     ENABLE_TESTING()
     INCLUDE(ExternalProject)
 
-    SET(GTEST_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/gtest)
-    SET(GTEST_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/gtest)
+    SET(GTEST_SOURCES_DIR ${THIRD_PARTY_PATH}/gtest)
+    SET(GTEST_INSTALL_DIR ${THIRD_PARTY_PATH}/install/gtest)
     SET(GTEST_INCLUDE_DIR "${GTEST_INSTALL_DIR}/include" CACHE PATH "gtest include directory." FORCE)
 
     INCLUDE_DIRECTORIES(${GTEST_INCLUDE_DIR})

cmake/external/openblas.cmake

@@ -18,8 +18,8 @@ IF(NOT ${CBLAS_FOUND})
     MESSAGE(FATAL_ERROR "Please install OpenBlas, MKL or ATLAS.")
     INCLUDE(ExternalProject)
 
-    SET(CBLAS_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/openblas)
-    SET(CBLAS_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/openblas)
+    SET(CBLAS_SOURCES_DIR ${THIRD_PARTY_PATH}/openblas)
+    SET(CBLAS_INSTALL_DIR ${THIRD_PARTY_PATH}/install/openblas)
     SET(CBLAS_INC_DIR "${CBLAS_INSTALL_DIR}/include" CACHE PATH "openblas include directory." FORCE)
 
     IF(WIN32)

cmake/external/protobuf.cmake

@@ -14,8 +14,8 @@
 
 INCLUDE(ExternalProject)
 
-SET(PROTOBUF_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/protobuf)
-SET(PROTOBUF_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/protobuf)
+SET(PROTOBUF_SOURCES_DIR ${THIRD_PARTY_PATH}/protobuf)
+SET(PROTOBUF_INSTALL_DIR ${THIRD_PARTY_PATH}/install/protobuf)
 SET(PROTOBUF_INCLUDE_DIR "${PROTOBUF_INSTALL_DIR}/include" CACHE PATH "protobuf include directory." FORCE)
 
 INCLUDE_DIRECTORIES(${PROTOBUF_INCLUDE_DIR})

cmake/external/python.cmake

@@ -26,10 +26,14 @@ IF(PYTHONLIBS_FOUND AND PYTHONINTERP_FOUND)
     find_python_module(wheel REQUIRED)
     find_python_module(google.protobuf REQUIRED)
     FIND_PACKAGE(NumPy REQUIRED)
+    IF(${PY_GOOGLE.PROTOBUF_VERSION} VERSION_LESS "3.0.0")
+        MESSAGE(FATAL_ERROR "Found Python Protobuf ${PY_GOOGLE.PROTOBUF_VERSION} < 3.0.0, "
+        "please use pip to upgrade protobuf.")
+    ENDIF(${PY_GOOGLE.PROTOBUF_VERSION} VERSION_LESS "3.0.0")
 ELSE(PYTHONLIBS_FOUND AND PYTHONINTERP_FOUND)
     ##################################### PYTHON ########################################
-    SET(PYTHON_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/python)
-    SET(PYTHON_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/python)
+    SET(PYTHON_SOURCES_DIR ${THIRD_PARTY_PATH}/python)
+    SET(PYTHON_INSTALL_DIR ${THIRD_PARTY_PATH}/install/python)
     SET(_python_DIR ${PYTHON_INSTALL_DIR})
 
     IF(UNIX)

cmake/external/swig.cmake

@@ -18,8 +18,8 @@ IF(NOT SWIG_FOUND)
     # build swig as an external project
     INCLUDE(ExternalProject)
 
-    SET(SWIG_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/swig)
-    SET(SWIG_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/swig)
+    SET(SWIG_SOURCES_DIR ${THIRD_PARTY_PATH}/swig)
+    SET(SWIG_INSTALL_DIR ${THIRD_PARTY_PATH}/install/swig)
     SET(SWIG_TARGET_VERSION "3.0.2")
     SET(SWIG_DOWNLOAD_SRC_MD5 "62f9b0d010cef36a13a010dc530d0d41")
     SET(SWIG_DOWNLOAD_WIN_MD5 "3f18de4fc09ab9abb0d3be37c11fbc8f")

cmake/external/warpctc.cmake

@@ -14,8 +14,8 @@
 
 INCLUDE(ExternalProject)
 
-SET(WARPCTC_SOURCES_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/warpctc)
-SET(WARPCTC_INSTALL_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/install/warpctc)
+SET(WARPCTC_SOURCES_DIR ${THIRD_PARTY_PATH}/warpctc)
+SET(WARPCTC_INSTALL_DIR ${THIRD_PARTY_PATH}/install/warpctc)
 SET(WARPCTC_INCLUDE_DIR "${WARPCTC_INSTALL_DIR}/include" CACHE PATH "Warp-ctc Directory" FORCE)
 
 INCLUDE_DIRECTORIES(${WARPCTC_INCLUDE_DIR})