Use --prefer-dist to improve CI perf

https://twitter.com/seldaek/status/708236348281495552

diff --git a/.travis.yml b/.travis.yml
index 5f0abe8715a5afdd8dcfe153a00a1589ac114d86..5741b533a51aeb7d893c62c024daba1898f7b6ff 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,6 +50,6 @@ before_install:
     - if [[ $TRAVIS_REPO_SLUG = wallabag/wallabag ]]; then cp .composer-auth.json ~/.composer/auth.json; fi;
 
 script:
-    - travis_wait composer update --no-interaction --no-progress
+    - travis_wait composer install --no-interaction --no-progress --prefer-dist -o
     - ant prepare-$DB
     - bin/phpunit -v