Add PHP 7.1 and MongoDB 3.2 to the build matrix

With the old matrix, we'd have 10 builds, which seems excessive. Since there's no need to test every PHP version against every MongoDB version, we only test PHP 5.6 against each MongoDB version.

.travis.yml

@@ -2,21 +2,38 @@ language: php
 
 php:
   - 5.6
+  - 7.0
+  - 7.1
 
 env:
   global:
-    - DOCTRINE_MONGODB_SERVER=mongodb://localhost:27017
-  matrix:
-    - MONGO_VERSION=1.5.8
-    - MONGO_VERSION=stable
+    - DOCTRINE_MONGODB_SERVER="mongodb://localhost:27017"
+    - KEY_SERVER="hkp://keyserver.ubuntu.com:80"
+    - MONGO_REPO_URI="https://repo.mongodb.com/apt/ubuntu"
+    - MONGO_REPO_TYPE="precise/mongodb-enterprise/"
+    - SOURCES_LOC="/etc/apt/sources.list.d/mongodb.list"
+    - DRIVER_VERSION="stable"
+    - ADAPTER_VERSION="^1.0.0"
+    - SERVER_VERSION="3.2"
 
 matrix:
   include:
-    - php: 7.0
-      env: ADAPTER_VERSION="^1.0.0" MONGODB_VERSION=stable
-
-
-services: mongodb
+    - php: 5.6
+      env: DRIVER_VERSION="1.5.8" SERVER_VERSION="2.6" COMPOSER_FLAGS="--prefer-lowest"
+    - php: 5.6
+      env: DRIVER_VERSION="stable" SERVER_VERSION="3.0"
+
+before_install:
+  - sudo apt-key adv --keyserver ${KEY_SERVER} --recv 7F0CEB10
+  - sudo apt-key adv --keyserver ${KEY_SERVER} --recv EA312927
+  - echo "deb ${MONGO_REPO_URI} ${MONGO_REPO_TYPE}${SERVER_VERSION} multiverse" | sudo tee ${SOURCES_LOC}
+  - sudo apt-get update -qq
+
+install:
+  - sudo apt-get install mongodb-enterprise
+  - if nc -z localhost 27017; then sudo service mongod stop; fi
+  - sudo pip install mongo-orchestration
+  - sudo mongo-orchestration start
 
 before_script:
   - if [ "x${MONGO_VERSION}" != "x" ]; then yes '' | pecl -q install -f mongo-${MONGO_VERSION} && echo "extension=mongo.so" >> `php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`; fi
@@ -25,9 +42,10 @@ before_script:
   - sudo mongo-orchestration start
   - curl -XPUT http://localhost:8889/v1/sharded_clusters/myCluster --data @tests/sharded.json | python -m json.tool
   - composer self-update
-  - if [ "x${MONGODB_VERSION}" != "x" ]; then pecl install -f mongodb-${MONGODB_VERSION}; fi
-  - if [ "x${ADAPTER_VERSION}" != "x" ]; then composer require "alcaeus/mongo-php-adapter=${ADAPTER_VERSION}" --ignore-platform-reqs; fi
-  - composer install --dev
+  - if [[ ${TRAVIS_PHP_VERSION:0:2} == "5." ]]; then yes '' | pecl -q install -f mongo-${DRIVER_VERSION}; fi
+  - if [[ ${TRAVIS_PHP_VERSION:0:2} == "7." ]]; then pecl install -f mongodb-${DRIVER_VERSION}; fi
+  - if [[ ${TRAVIS_PHP_VERSION:0:2} == "7." ]]; then composer require "alcaeus/mongo-php-adapter=${ADAPTER_VERSION}" --ignore-platform-reqs; fi
+  - composer update ${COMPOSER_FLAGS}
 
 script:
     - ./vendor/bin/phpunit --coverage-clover=coverage.clover