Enable continuous delivery of the snap from Travis CI

Author: spderosso

.snapcraft/travis_snapcraft.cfg

@@ -1,40 +1,41 @@
 language: python
-
 python:
-  - "2.7"
-  - "3.3"
-  - "3.4"
-  - "3.5"
-  - "3.6"
-  - "pypy-5.3.1"
-
+- '2.7'
+- '3.3'
+- '3.4'
+- '3.5'
+- '3.6'
+- pypy-5.3.1
 env: LIBGIT2=~/libgit2/_install/ LD_LIBRARY_PATH=~/libgit2/_install/lib
-
-before_install: "./.travis.sh"
-
+before_install: ./.travis.sh
 install: pip install -r requirements.txt .
-
 before_script:
-  - git config --global user.name "travis-test"
-  - git config --global user.email "travis@test.com"
-
+- git config --global user.name "travis-test"
+- git config --global user.email "travis@test.com"
 script:
-  - nosetests --logging-level=WARN
-  # nose doesn't like the number on test_e2e so it's not detected by the
-  # previous command.
-  - nosetests gitless/tests/test_e2e.py --logging-level=WARN
-
+- nosetests --logging-level=WARN
+- nosetests gitless/tests/test_e2e.py --logging-level=WARN
 branches:
   only:
-    - master
-    - develop
-
-sudo: false
-
+  - master
+  - develop
+sudo: required
 jobs:
   include:
-    - stage: Pack snap
-      env: EMPTY
-      before_install: skip
-      install: skip
-      script: docker run -v $(pwd):$(pwd) -w $(pwd) snapcore/snapcraft snapcraft
+  - stage: Pack snap
+    env: EMPTY
+    before_install: skip
+    install: skip
+    script: docker run -v $(pwd):$(pwd) -w $(pwd) snapcore/snapcraft snapcraft
+after_success:
+- openssl aes-256-cbc -K $encrypted_8b01c2e263fa_key -iv $encrypted_8b01c2e263fa_iv
+  -in .snapcraft/travis_snapcraft.cfg -out .snapcraft/snapcraft.cfg -d
+services:
+- docker
+deploy:
+  'on':
+    branch: master
+  provider: script
+  script: docker run -v $(pwd):$(pwd) -t snapcore/snapcraft sh -c "apt update -qq
+    && cd $(pwd) && snapcraft && snapcraft push *.snap --release edge"
+  skip_cleanup: true