[#766] Stop Travis build if a dependency install fails

To do so, I needed to split our ./bin/travis-build in two files, one with the
deps install, and one with the test run. Doing so allows me to use the
"install" directive in Travis, and break the build as soon as something fails
with it.

.travis.yml

@@ -5,7 +5,8 @@ python:
 env:
   - PGVERSION=9.1
   - PGVERSION=8.4
-script: ./bin/travis-build
+install: ./bin/travis-install-dependencies
+script: ./bin/travis-run-tests
 notifications:
   irc:
     channels:

bin/travis-build → bin/travis-install-dependencies

@@ -1,4 +1,7 @@
-#!/bin/sh
+#!/bin/bash
+
+# Exit immediately if any command fails
+set -e
 
 # Drop Travis' postgres cluster if we're building using a different pg version
 TRAVIS_PGVERSION='9.1'
@@ -51,24 +54,3 @@ else
 fi
 
 cat test-core.ini
-
-# Run mocha front-end tests
-# We need ckan to be running for some tests
-paster serve test-core.ini &
-sleep 5 # Make sure the server has fully started
-mocha-phantomjs http://localhost:5000/base/test/index.html
-# Did an error occur?
-MOCHA_ERROR=$?
-# We are done so kill ckan
-killall paster
-
-# And finally, run the nosetests
-nosetests --ckan --with-pylons=test-core.ini --nologcapture ckan ckanext
-# Did an error occur?
-NOSE_ERROR=$?
-
-[ "0" -ne "$MOCHA_ERROR" ] && echo MOCKA tests have failed
-[ "0" -ne "$NOSE_ERROR" ] && echo NOSE tests have failed
-
-# If an error occurred in our tests make sure travis knows
-exit `expr $MOCHA_ERROR + $NOSE_ERROR`

bin/travis-run-tests

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Run mocha front-end tests
+# We need ckan to be running for some tests
+paster serve test-core.ini &
+sleep 5 # Make sure the server has fully started
+mocha-phantomjs http://localhost:5000/base/test/index.html
+# Did an error occur?
+MOCHA_ERROR=$?
+# We are done so kill ckan
+killall paster
+
+# And finally, run the nosetests
+nosetests --ckan --with-pylons=test-core.ini --nologcapture ckan ckanext
+# Did an error occur?
+NOSE_ERROR=$?
+
+[ "0" -ne "$MOCHA_ERROR" ] && echo MOCKA tests have failed
+[ "0" -ne "$NOSE_ERROR" ] && echo NOSE tests have failed
+
+# If an error occurred in our tests make sure travis knows
+exit `expr $MOCHA_ERROR + $NOSE_ERROR`