Rubocop is a Ruby linter and formatter. It has a series of checks for aspects
such as style, code metrics, and naming. Rubocop also verifies for security
concerns: unsafe evaluation, YAML deserializations, and many more. The
formatter capability can be used to fix many of the issues automatically.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
Install Rubocop
To install Rubocop, simply use the following command: