Add script to fetch Redis URLs from Heroku (#783)

The Heroku Redis URLs for the PR/beta/canary deployments change
periodically, which breaks things until I manually update the Redis
environment variables for the Travis environment. This obtains them
at build time from Heroku instead.

This also moves travis-web jobs onto the Trusty beta, because it
includes the heroku command needed to fetch the Redis URLs. This
has the added benefit of including PhantomJS 2.0.0, which comes
pre-installed in that environment, so we no longer need the
.travis.yml lines related to installing that.

.travis.yml

@@ -15,17 +15,14 @@ matrix:
   fast_finish: true
 
 sudo: false
+dist: trusty
 
 cache:
   directories:
     - node_modules
     - bower_components
 
 before_install:
-  - mkdir travis-phantomjs
-  - wget https://s3.amazonaws.com/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2 -O $PWD/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2
-  - tar -xvf $PWD/travis-phantomjs/phantomjs-2.0.0-ubuntu-12.04.tar.bz2 -C $PWD/travis-phantomjs
-  - export PATH=$PWD/travis-phantomjs:$PATH
   - "npm config set spin false"
   - "npm install -g npm@^2"
 

config/deployment/deploy-pull-request.sh

@@ -1,5 +1,7 @@
 export CLEANED_BRANCH_SUBDOMAIN=`echo $TRAVIS_PULL_REQUEST_BRANCH | tr '.' '-' | tr '[:upper:]' '[:lower:]'`
 
+./config/deployment/store-redis-urls.sh
+
 ember deploy org-production-pull-request --activate --verbose
 TLD=org ENVIRONMENT=production ./config/deployment/update-github-status.sh
 

config/deployment/deploy-test-master.sh

@@ -1,5 +1,7 @@
 export CLEANED_BRANCH_SUBDOMAIN=ember-$EMBER_VERSION
 export DISABLE_SENTRY=true
 
+./config/deployment/store-redis-urls.sh
+
 ember deploy org-$EMBER_VERSION --activate --verbose
 TRAVIS_PRO=true ember deploy com-$EMBER_VERSION --activate --verbose

config/deployment/store-redis-urls.sh

@@ -0,0 +1,2 @@
+export ORG_PRODUCTION_REDIS_URL=`heroku config:get REDIS_URL -a travis-web-production-next`
+export COM_PRODUCTION_REDIS_URL=`heroku config:get REDIS_URL -a travis-pro-web-production-next`

package.json

@@ -33,7 +33,7 @@
     "ember-cli-babel": "^5.1.6",
     "ember-cli-dependency-checker": "^1.3.0",
     "ember-cli-deploy": "0.6.4",
-    "ember-cli-deploy-lightning-pack": "0.6.4",
+    "ember-cli-deploy-lightning-pack": "0.6.8",
     "ember-cli-deprecation-workflow": "0.2.3",
     "ember-cli-document-title": "0.3.3",
     "ember-cli-eslint": "3.0.0",