simpler approach

.travis.yml

@@ -21,6 +21,11 @@ script:
   - mpirun -n 2 nosetests
   - pip uninstall -y mpi4py
   - nosetests
+  - sphinx-apidoc -f -o doc bet
+  - cd doc/
+  - make html
+  - make html
+  - cd ..
 
 # notification settings
 notifications:
@@ -43,30 +48,15 @@ after_success:
   - codecov
 
 # Deploy docs
-jobs:
-  include:
-    - stage: deploy
-        python: 3.6
-	services: xvfb
-	before_install:
-	  - "export DISPLAY=:99.0"
-  	  - sudo apt-get install gfortran libblas-dev liblapack-dev mpich libmpich-dev
-        install: 
-	  - pip install matplotlib mpi4py nose codecov Sphinx sphinx_rtd_theme
-	  - python setup.py install
-        script:
-          - sphinx-apidoc -f -o doc bet
- 	  - cd doc/
-  	  - make html
-  	  - make html
-  	  - cd ..
-        deploy:
-          provider: pages
-          skip_cleanup: true
-          github_token: $GITHUB_TOKEN
-          keep-history: false
-          on:
-            branch: master
-          local_dir: gh-pages/html
+deploy:
+  provider: pages
+  skip_cleanup: true
+  skip_existing: true
+  github_token: $GITHUB_TOKEN  # Set in the settings page of your repository, as a secure variable
+  keep_history: false
+  local_dir: gh-pages/html
+  on:
+    branch: master
+