Auto-completion for fish shell

[athityakumar]

Description

The auto-completion for flags and paths can be provided for the fish shell via the getopt plugin.

• Relevant Issues : #160
• Relevant PRs : (none)
• Type of issue :
  • [ ] Installation
  • [ ] Font-related
  • [x] Feature request
  • [ ] Bug in existing feature
  • [ ] Developer mode : Code quality / Tests / Documentation

[dkowis]

https://fishshell.com/docs/current/commands.html#complete

This is probably a better idea than using the getopt plugin? That way no extra plugin has to be installed, I think.

[SpaceWhite]

+1 for this feature

[adcpe]

This issue is interesting to me. I agree that adding completions to Fish natively would be better than adding them through an external plugin.

To do that we have to add this feature to Fish directly. I see PR 179 has a template of what would be added. Is that still good or does it need to be modified to be added to Fish?

[dkowis]

I don't think it needs to be added directly to fish. I think you just need to provide the completions file to be loaded.

https://fishshell.com/docs/current/completions.html#completion-own

It's been a long long time since I looked at this tho, heh

[adcpe]

It doesn't need to be added Fish, but it would be the best way because it means the user doesn't have to make any effort.

The other way would be add a command to colorls that copies the completions to $HOME/.config/fish/completions/.

Any of the two seem cleaner than adding an external plugin like getopt, as suggested.