fixed travis

.travis.yml

@@ -1,27 +1,21 @@
 sudo: required
 language: php
 php:
-  - 7.0
   - 7.1
-  - hhvm
+  - 7.2
+  - 7.3
 env:
   global:
-    - ES_VERSION="5.0" JAVA_HOME="/usr/lib/jvm/java-8-oracle/jre"
-matrix:
-  allow_failures:
-    - php: hhvm
+    - ES_VERSION=6.2.3 ES_DOWNLOAD_URL=https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-${ES_VERSION}.tar.gz
 install:
-  # Container based PHP image ues PHP 5.6.5, once it will be upgraded sudo will be not necessary
-  - sudo apt-get install -y oracle-java8-set-default
-  - ES_URL=$(curl -sS "https://esvm-props.kibana.rocks/builds" | jq -r ".branches[\"$ES_VERSION\"].zip")
-  - curl -L -o elasticsearch.zip $ES_URL
-  - unzip elasticsearch.zip
-  - ./elasticsearch-*/bin/elasticsearch -d
+  - wget ${ES_DOWNLOAD_URL}
+  - tar -xzf elasticsearch-${ES_VERSION}.tar.gz
+  - ./elasticsearch-${ES_VERSION}/bin/elasticsearch -d
 before_script:
   - composer config -g github-oauth.github.com $GITHUB_COMPOSER_AUTH
-  - composer install --no-interaction --prefer-dist
+  - COMPOSER_MEMORY_LIMIT=-1 travis_retry composer install --prefer-dist --no-interaction
 script:
   - vendor/bin/phpunit --coverage-clover=coveralls.clover
   - vendor/bin/phpcs -p --standard=PSR2 --extensions=php --ignore=vendor/,Tests/app/ ./
 after_script:
-  - travis_retry php vendor/bin/coveralls
+  - travis_retry php vendor/bin/coveralls