attempt at adding coveralls support to drone runs

.drone.yml

@@ -17,8 +17,8 @@ steps:
   - pip install --default-timeout 60 coveralls && export HAS_COVERALLS=1
   - python setup.py install
   - flake8 --exit-zero rdflib
-  - PYTHONWARNINGS=default nosetests --with-timer --timer-top-n 42 --with-coverage --cover-tests --cover-package=rdflib
-  - coverage report
+  - PYTHONWARNINGS=default nosetests --with-timer --timer-top-n 42
+
 
 ---
 kind: pipeline
@@ -39,7 +39,26 @@ steps:
   - python setup.py install
   - flake8 --exit-zero rdflib
   - PYTHONWARNINGS=default nosetests --with-timer --timer-top-n 42 --with-coverage --cover-tests --cover-package=rdflib
-  - coverage report
+
+- name: coveralls
+  image: lizheming/drone-coveralls
+  environment:
+    COVERALLS_SERVICE_NAME: RDFLibDrone
+    COVERALLS_REPO_TOKEN:
+      from_secret: coveralls_token
+  settings:
+    # the files are relative to coverage entrypoint PWD, that is /usr/src/app/
+    files:
+    - ../../../drone/src/.coverage
+  commands:
+  - export COVERALLS_SERVICE_NUMBER="$DRONE_BUILD_NUMBER"
+  - export COVERALLS_SERVICE_JOB_ID="$DRONE_STAGE_NAME"
+  - export COVERALLS_SERVICE_JOB_NUMBER="$DRONE_STAGE_NUMBER"
+  - export COVERALLS_FLAG_NAME="$DRONE_STAGE_KIND"
+  - export COVERALLS_GIT_REPO="$DRONE_REPO_NAME"
+  - export COVERALLS_GIT_BRANCH="$DRONE_SOURCE_BRANCH"
+  - cd /usr/src/app && /usr/src/app/entrypoint.sh
+
 
 ---
 kind: pipeline
@@ -59,5 +78,5 @@ steps:
   - pip install --default-timeout 60 coveralls && export HAS_COVERALLS=1
   - python setup.py install
   - flake8 --exit-zero rdflib
-  - PYTHONWARNINGS=default nosetests --with-timer --timer-top-n 42 --with-coverage --cover-tests --cover-package=rdflib
-  - coverage report
+  - PYTHONWARNINGS=default nosetests --with-timer --timer-top-n 42
+