Offense counts in .rubocop_todo.yml are noisy

[agrimm]

Whenever rubocop --auto-gen-config is rerun, a lot of the changes you can see doing a git diff of the .rubocop_todo.yml are changes to the offense count lines. Usually when I incorporate the changes into git, I do git add -p, commit the relevant changes (such as an offense being squashed for a particular excluded file, or squashed altogether), and then git checkout the offense counts.

Possibilities I can think of:

• Have an option to not show offense counts.
• Only display the first significant figure (eg 3 offenses, between 10 and 19 offenses, between 200 and 299 offenses)
• If a todo file already exists, don't modify the offense count if the change is small (I don't like this option, because it results in behavior that changes depending on whether or not the file exists)

[alexdowad]

If an option was added not to show offense counts, what interface would you propose for that option?

[agrimm]

It'd presumably be a command-line option like --no-offense-counts. RuboCop has recently allowed configuration options to be given along with --auto-gen-config.

[alexdowad]

Maintainers, do you like the idea of --no-offense-counts?

[bbatsov]

That's fine by me.

[alexdowad]

OK, will do.