pg_search

https://github.com/casecommons/pg_search

Ruby

pg_search builds ActiveRecord named scopes that take advantage of PostgreSQL’s full text search

Gitlab::TaskHelpers#os_name

Check which OS is running

It will primarily use lsb_relase to determine the OS.
It has fallbacks to Debian, SuSE, OS X and systems running systemd.

Source | Google | Stack overflow

Edit

git clone [email protected]:casecommons/pg_search.git
cd pg_search
open

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Gitlab--TaskHelpers-os_name-for-pr

# Commit to git
git add git commit -m "better docs for Gitlab::TaskHelpers#os_name"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Gitlab--TaskHelpers-os_name-for-pr
hub pull-request

# Celebrate!