helmfile: Missing command - dependency update

From the discussion made in #415, I’m considering to add helmfile dependency update(#450), as well as changing helmfile to run dependency buidl rather than dependency update in helmfile sync, diff, apply and template.

Does that make sense to you?

Yeah, I actually just realized charts is probably better for me. Although I still think it would be sensible to have separate commands, like sync and update.

@mumoshu Exactly, we apply args too early, I just inverted the lines of code, that’s all. My PR is ready for your review 😃 Thank you

@sstarcher Thx for the response!

How about just improving helmfile sync to also run helm dep update when the release’s chart: references a local chart?

I’m curious about the usefulness of only running dep update or even repo update(already implemented as helmfile repos but I have never got to use that myself) through helmfile.