Travis: Move non-installation commands to a separate file

.travis.yml

@@ -46,6 +46,7 @@ matrix:
   allow_failures:
     - python: nightly
 
+before_install: .travis/setup.sh
 install: travis_retry .travis/install.sh
 script: .travis/run.sh
 

.travis/install.sh

@@ -2,8 +2,5 @@
 set -e
 set -x
 
-git config --global user.email "pypa-dev@googlegroups.com"
-git config --global user.name "pip"
-
 pip install --upgrade setuptools
 pip install --upgrade tox

.travis/setup.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -e
+
+echo "Setting Git Credentials..."
+git config --global user.email "pypa-dev@googlegroups.com"
+git config --global user.name "pip"