Updated Travis CI configuration

- fixed env variable - CS_CHECK instead of CHECK_CS
- removed --no-plugins flag as it is not needed anymore
- updated actions (to conform maintainers template)

Author: michalbundyra

.travis.yml

@@ -8,7 +8,7 @@ cache:
 
 env:
   global:
-    - COMPOSER_ARGS="--no-interaction --no-plugins"
+    - COMPOSER_ARGS="--no-interaction"
     - COVERAGE_DEPS="satooshi/php-coveralls"
 
 matrix:
@@ -19,8 +19,9 @@ matrix:
     - php: 7.1
       env:
         - DEPS=locked
+        - CS_CHECK=true
+        - BENCHMARKS=true
         - TEST_COVERAGE=true
-        - CHECK_CS=true
     - php: 7.1
       env:
         - DEPS=latest
@@ -35,12 +36,12 @@ matrix:
         - DEPS=latest
 
 before_install:
-  - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || true ; fi
+  - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
 
 install:
   - travis_retry composer install $COMPOSER_ARGS
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
-  - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update $COMPOSER_ARGS --prefer-lowest --prefer-stable ; fi
+  - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi
   - stty cols 120 && composer show
 
@@ -50,7 +51,7 @@ script:
   - if [[ $CS_CHECK == 'true' ]]; then composer cs-check ; fi
 
 after_script:
-  - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer upload-coverage ; fi
+  - if [[ $TEST_COVERAGE == 'true' ]]; then composer upload-coverage ; fi
 
 notifications:
   email: false