download elasticsearch binaries

.travis.yml

 language: python
 python: 2.7
 sudo: false
-services:
-    - elasticsearch
 
 install:
+    - scripts/travis/install.sh
+    - scripts/travis/setup.sh
     - pip install -r requirements/test.txt
     - git fetch origin master:refs/remotes/origin/master # https://github.com/edx/diff-cover#troubleshooting
     - pip install coveralls

scripts/travis/install.sh

+#!/bin/bash
+
+# Installs Elasticsearch
+#
+# Requires ESVER environment variable to be set.
+
+set -e
+
+echo "Installing Elasticsearch $ESVER" >&2
+wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-$ESVER.tar.gz
+tar xzvf elasticsearch-$ESVER.tar.gz

scripts/travis/setup.sh

+#!/bin/bash
+
+# Runs Elasticsearch
+#
+# Requires ESVER environment variable to be set.
+# cwd is the git repository root.
+
+set -e
+
+echo "Starting Elasticsearch $ESVER" >&2
+pushd elasticsearch-$ESVER
+    # Elasticsearch 0.90 daemonizes automatically, but 1.0+ requires
+    # a -d argument.
+
+    if [[ $ESVER == 0* ]];
+    then
+        ./bin/elasticsearch
+    else
+        echo "launching with -d option." >&2
+        ./bin/elasticsearch -d
+    fi
+popd