CI lint check (dmlc#93)

* CI for lint check

* init submodule before run lint

* install ubuntu core for lint docker

* remove generator import in dgl

Jenkinsfile

@@ -1,11 +1,15 @@
 #!/usr/bin/env groovy
 
-def setup() {
-    sh 'easy_install nose'
+def init_git_submodule() {
     sh 'git submodule init'
     sh 'git submodule update'
 }
 
+def setup() {
+    sh 'easy_install nose'
+    init_git_submodule()
+}
+
 def build_dgl() {
     sh 'if [ -d build ]; then rm -rf build; fi; mkdir build'
     dir('python') {
@@ -36,6 +40,21 @@ def example_test(dev) {
 pipeline {
     agent none
     stages {
+        stage('Lint Check') {
+            agent {
+                docker {
+                    image 'lingfanyu/dgl-lint'
+                }
+            }
+            stages {
+                stage('CHECK') {
+                    steps {
+                        init_git_submodule()
+                        sh 'tests/scripts/task_lint.sh'
+                    }
+                }
+            }
+        }
         stage('Build and Test') {
             parallel {
                 stage('CPU') {

docker/Dockerfile.ci_lint

@@ -0,0 +1,14 @@
+# CI docker for lint
+# Adapted from github.com/dmlc/tvm/docker/Dockerfile.ci_lint
+
+FROM ubuntu:16.04
+
+COPY install/ubuntu_install_core.sh /install/ubuntu_install_core.sh
+RUN bash /install/ubuntu_install_core.sh
+
+COPY install/ubuntu_install_python.sh /install/ubuntu_install_python.sh
+RUN bash /install/ubuntu_install_python.sh
+
+RUN apt-get install -y doxygen graphviz
+
+RUN pip3 install cpplint pylint mypy

docker/README.md

@@ -5,3 +5,6 @@ docker build -t dgl-cpu -f Dockerfile.ci_cpu .
 
 ### GPU image
 docker build -t dgl-gpu -f Dockerfile.ci_gpu .
+
+### Lint image
+docker build -t dgl-lint -f Dockerfile.ci_lint .

python/dgl/__init__.py

@@ -1,7 +1,6 @@
 from . import backend
 from . import data
 from . import function
-from . import generator
 from . import nn
 
 from ._ffi.runtime_ctypes import TypeCode
@@ -10,6 +9,5 @@
 
 from .base import ALL
 from .batched_graph import *
-from .generator import *
 from .graph import DGLGraph
 from .subgraph import DGLSubGraph