[Travis] Fix bash conditions

docker/hhvm/entrypoint.sh

@@ -7,7 +7,7 @@ USER_ID=${USER_ID-1000}
 XDEBUG=${XDEBUG-0}
 
 # Enable XDebug
-if [ ${XDEBUG} = 1 ]; then
+if [ "$XDEBUG" = 1 ]; then
     cat /var/www/xdebug.ini >> /etc/hhvm/php.ini
 fi
 

docker/php/entrypoint.sh

@@ -7,7 +7,7 @@ USER_ID=${USER_ID-1000}
 XDEBUG=${XDEBUG-0}
 
 # Disable XDebug
-if [ ! ${XDEBUG} = 1 ]; then
+if [ ! "$XDEBUG" = 1 ]; then
     rm -f /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini /usr/local/etc/php/conf.d/xdebug.ini
 fi
 

travis/install.sh

@@ -6,7 +6,7 @@ SYMFONY_VERSION=${SYMFONY_VERSION-2.3.*}
 COMPOSER_PREFER_LOWEST=${COMPOSER_PREFER_LOWEST-false}
 DOCKER_BUILD=${DOCKER_BUILD=false}
 
-if [ ${DOCKER_BUILD} = true ]; then
+if [ "$DOCKER_BUILD" = true ]; then
     cp .env.dist .env
 
     docker-compose build
@@ -35,4 +35,4 @@ if [[ "$SYMFONY_VERSION" = *dev* ]]; then
     sed -i "s/\"MIT\"/\"MIT\",\"minimum-stability\":\"dev\"/g" composer.json
 fi
 
-composer update --prefer-source `if [[ ${COMPOSER_PREFER_LOWEST} = true ]]; then echo "--prefer-lowest --prefer-stable"; fi`
+composer update --prefer-source `if [ "$COMPOSER_PREFER_LOWEST" = true ]; then echo "--prefer-lowest --prefer-stable"; fi`

travis/script.sh

@@ -4,11 +4,11 @@ set -e
 
 DOCKER_BUILD=${DOCKER_BUILD=false}
 
-if [ ${DOCKER_BUILD} = false ]; then
+if [ "$DOCKER_BUILD" = false ]; then
     vendor/bin/phpunit --coverage-clover build/clover.xml
 fi
 
-if [ ${DOCKER_BUILD} = true ]; then
+if [ "$DOCKER_BUILD" = true ]; then
     docker-compose run --rm php vendor/bin/phpunit
     docker-compose run --rm hhvm vendor/bin/phpunit
 fi

travis/success.sh

@@ -4,7 +4,7 @@ set -e
 
 DOCKER_BUILD=${DOCKER_BUILD=false}
 
-if [ ${DOCKER_BUILD} = false ]; then
+if [ "$DOCKER_BUILD" = false ]; then
     wget https://scrutinizer-ci.com/ocular.phar
     php ocular.phar code-coverage:upload --format=php-clover build/clover.xml
 fi