fail script if a step fails.

deploy

@@ -12,11 +12,11 @@ git stash
 git pull
 
 ## Composer
-php8.1 /usr/bin/composer install --prefer-dist --no-interaction --optimize-autoloader
+php8.1 $(which composer) install --prefer-dist --no-interaction --optimize-autoloader || exit 1
 
 ## CSS & JS
-npm install
-npm run production
+npm install || exit 1
+npm run production || exit 1
 
 # Get correct version info from git tag and replace into template
 VERSION=$(git describe --tags)