Using Docker and caching for Travis builds

Added Docker and caching support should help decrease build time.

Using Docker and caching for Travis builds
Added Docker and caching support should help decrease build time.
b04f9bd8 · Clinton Blackburn · 4de3881c · b04f9bd8
Commit b04f9bd8 authored Apr 11, 2015 by Clinton Blackburn
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.travis.yml
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--- a/.travis.yml
+++ b/.travis.yml
 language: python
 python:
    - "2.7"
+sudo: false
+
+# Cache the pip directory. "cache: pip" doesn't work due to install override. See https://github.com/travis-ci/travis-ci/issues/3239.
+cache:
+  directories:
+    - $HOME/.cache/pip
 before_install:
    - "export DISPLAY=:99.0"
    - "sh -e /etc/init.d/xvfb start"