diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000000000000000000000000000000000000..8b5830627348c6bff12260b7d9adbd357f074718
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,27 @@
+# This file is used by clang-format to autoformat paddle source code
+#
+# The clang-format is part of llvm toolchain.
+# It need to install llvm and clang to format source code style.
+#
+# The basic usage is,
+#   clang-format -i -style=file PATH/TO/SOURCE/CODE
+#
+# The -style=file implicit use ".clang-format" file located in one of 
+# parent directory. 
+# The -i means inplace change.
+#
+# The document of clang-format is 
+#   http://clang.llvm.org/docs/ClangFormat.html
+#   http://clang.llvm.org/docs/ClangFormatStyleOptions.html
+---
+Language:        Cpp
+BasedOnStyle:  Google
+IndentWidth:     2
+TabWidth:        2
+ContinuationIndentWidth: 4
+AccessModifierOffset: -1  # The private/protected/public has no indent in class
+Standard:  Cpp11 
+AllowAllParametersOfDeclarationOnNextLine: true
+BinPackParameters: false
+BinPackArguments: false
+...
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000000000000000000000000000000000000..2b2e74053d33cb6d2878fd3d6da48fa344172f63
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,15 @@
+*.DS_Store
+build/
+*.user
+.vscode
+.idea
+.project
+.cproject
+.pydevproject
+Makefile
+.test_env/
+third_party/
+*~
+bazel-*
+
+!build/*.deb
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..865ae6c5032656d4c9c05cdf3bf592a40fc478f4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,36 @@
+python/paddle/fluid/tests/unittests/reader_reset_test.recordio
+paddle/operators/check_t.save
+paddle/operators/check_tensor.ls
+paddle/operators/tensor.save
+python/paddle/v2/fluid/tests/book/image_classification_resnet.inference.model/
+python/paddle/v2/fluid/tests/book/image_classification_vgg.inference.model/
+python/paddle/v2/fluid/tests/book/label_semantic_roles.inference.model/
+paddle/fluid/operators/distributed/send_recv.proto
+*.DS_Store
+*.vs
+build/
+build_doc/
+*.user
+*.sh
+*.bkp
+
+.vscode
+.idea
+.project
+.cproject
+.pydevproject
+.settings/
+CMakeSettings.json
+Makefile
+.test_env/
+third_party/
+
+*~
+bazel-*
+third_party/
+
+build_*
+# clion workspace.
+cmake-build-*
+paddle/fluid/operators/distributed/send_recv.proto
+model_test
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..d8112837dc9627bc2e501940b8e97c89e97c45ff
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,52 @@
+repos:
+-   repo: https://github.com/Lucas-C/pre-commit-hooks.git
+    sha: v1.0.1
+    hooks:
+    -   id: remove-crlf
+        files: (?!.*third_party)^.*$ | (?!.*book)^.*$
+-   repo: https://github.com/PaddlePaddle/mirrors-yapf.git
+    sha: 0d79c0c469bab64f7229c9aca2b1186ef47f0e37
+    hooks:
+    -   id: yapf
+        files: (.*\.(py|bzl)|BUILD|.*\.BUILD|WORKSPACE)$
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    sha: 5bf6c09bfa1297d3692cadd621ef95f1284e33c0
+    hooks:
+    -   id: check-added-large-files
+    -   id: check-merge-conflict
+    -   id: check-symlinks
+    -   id: detect-private-key
+        files: (?!.*third_party)^.*$ | (?!.*book)^.*$
+    -   id: end-of-file-fixer
+-   repo: local
+    hooks:
+    -   id: clang-format-with-version-check
+        name: clang-format
+        description: Format files with ClangFormat.
+        entry: bash ./tools/codestyle/clang_format.hook -i
+        language: system
+        files: \.(c|cc|cxx|cpp|cu|h|hpp|hxx|proto)$
+-   repo: local
+    hooks:
+    -   id: cpplint-cpp-source
+        name: cpplint
+        description: Check C++ code style using cpplint.py.
+        entry: bash ./tools/codestyle/cpplint_pre_commit.hook
+        language: system
+        files: \.(c|cc|cxx|cpp|cu|h|hpp|hxx)$
+-   repo: local
+    hooks:
+    -   id: pylint-doc-string
+        name: pylint
+        description: Check python docstring style using docstring_checker.
+        entry: bash ./tools/codestyle/pylint_pre_commit.hook
+        language: system
+        files: \.(py)$
+-   repo: local
+    hooks:
+    -   id: copyright_checker
+        name: copyright_checker
+        entry: python ./tools/codestyle/copyright.hook
+        language: system
+        files: \.(c|cc|cxx|cpp|cu|h|hpp|hxx|proto|py)$
+        exclude: (?!.*third_party)^.*$ | (?!.*book)^.*$
diff --git a/.style.yapf b/.style.yapf
new file mode 100644
index 0000000000000000000000000000000000000000..4741fb4f3bbc6681088cf9e960321e7b857a93a8
--- /dev/null
+++ b/.style.yapf
@@ -0,0 +1,3 @@
+[style]
+based_on_style = pep8
+column_limit = 80
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000000000000000000000000000000000000..87de895ddadfafb644a49ef6887b1321cf29ef53
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,30 @@
+language: cpp
+cache:
+  directories:
+    - $HOME/.ccache
+    - $HOME/.cache/pip
+    - $TRAVIS_BUILD_DIR/build/third_party
+sudo: required
+dist: trusty
+services:
+  - docker
+os:
+  - linux
+env:
+  - JOB=check_style
+addons:
+  ssh_known_hosts: 13.229.163.131
+before_install:
+  # For pylint dockstring checker
+  - sudo pip install pylint pytest astroid isort
+  - |
+    function timeout() { perl -e 'alarm shift; exec @ARGV' "$@"; }
+script:
+  - |
+    # 43min timeout
+    paddle/scripts/paddle_docker_build.sh ${JOB}
+    if [ $? -eq 0 ] || [ $? -eq 142 ]; then true; else exit 1; fi;
+notifications:
+  email:
+    on_success: change
+    on_failure: always