[Docs] Move file_pattern option from Makefile to conf.py (#352)

* add rtfd

* rrr

* update

* change env

* temp fix

* update

* fix

* fix

* add

* conf

* Move file_pattern from Makefile to conf.py

* remove yml

* fix

* fix

* fix

* fix

* remove yml

* remove yml

* add doc docker

* add dgl install script

* change name

* change dockerfile

* fix

* name

* add

* fix

* fix

* fix

* fix

* add doc-build files

* remove unnecessary import os

docs/Makefile

@@ -19,8 +19,7 @@ mxnet:
 	@echo "#                Step 1: Building MXNet tutorials                #"
 	@echo "#                                                                #"
 	@echo "##################################################################"
-	@DGLBACKEND=mxnet $(SPHINXBUILD) -M html "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O) \
-						 -D sphinx_gallery_conf.filename_pattern="/*(?<=mx)\.py"
+	@DGLBACKEND=mxnet $(SPHINXBUILD) -M html "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 
 pytorch:
 	@echo "##################################################################"
@@ -28,8 +27,7 @@ pytorch:
 	@echo "#                Step 2: Building PyTorch tutorials              #"
 	@echo "#                                                                #"
 	@echo "##################################################################"
-	@DGLBACKEND=pytorch $(SPHINXBUILD) -M html "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O) \
-						 -D sphinx_gallery_conf.filename_pattern="/*(?<!mx)\.py"
+	@DGLBACKEND=pytorch $(SPHINXBUILD) -M html "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O) 
 
 html-noexec:
 	$(SPHINXBUILD) -D plot_gallery=0 -b html "$(SOURCEDIR)" "$(BUILDDIR)/html" 

docs/source/conf.py

@@ -213,3 +213,9 @@ sphinx_gallery_conf = {
     'filename_pattern' : '.py',
     'download_all_examples' : False,
 }
+
+# Compatibility for different backend when builds tutorials
+if os.environ['DGLBACKEND'] == 'mxnet':
+    sphinx_gallery_conf['filename_pattern'] = "/*(?<=mx)\.py"
+if os.environ['DGLBACKEND'] == 'pytorch':
+    sphinx_gallery_conf['filename_pattern'] = "/*(?<!mx)\.py"

readthedocs.yml

+build:
+  image: latest
+
+formats: []
+
+python:
+  version: 3.6
+  use_system_site_packages: true
+  setup_py_install: false