Fix rubygems update for rubies < 2.3.

https://github.com/rubygems/rubygems/issues/2534
2019-08-21 16:30:59 -04:00 · 2019-08-21 16:30:59 -04:00 · ea0c6f6754
parent 66b586e83a
commit ea0c6f6754
1 changed files with 3 additions and 1 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -29,7 +29,9 @@ branches:
    - "readme-edits"

 before_install:
-  - gem update --system
+  # Install rubygems < 3.0 so that we can support ruby < 2.3
+  # https://github.com/rubygems/rubygems/issues/2534
+  - gem install rubygems-update -v '<3' && update_rubygems
  # bundler installation needed for jruby-head
  # https://github.com/travis-ci/travis-ci/issues/5861
  - gem install bundler