how to run composer.phar self-update in travis

Question

I am facing warning statements in my travis builds.

Warning: This development build of composer is over 30 days old. It is recommended to update it by running \"/hom

Answer 1

inside your travis.yml

make sure you have this section

before_install:
  - php /home/travis/.phpenv/versions/5.3.26/bin/composer.phar self-update

in order to run the self-update properly

Answer 2

It is not such a good idea to hard-code the php path as paths might change when Travis gets update. I suggest simply calling

composer self-update