utility: add support for g-prefixed coreutils ls

[belak]

Fixes #1758

Proposed Changes

• Define g-prefixed ls aliases
• Default to g-prefixed ls in aliases

Note that this does change default behavior a bit by changing which ls will be selected for the default alias.

[jeffwidman]

I am okay with this change. I realize it changes default behavior, but I doubt it will affect that many folks. I also suspect those affected will primarily be advanced users with the knowledge to figure it out pretty quickly. And the new behavior after this change seems better to me.

[johnpneumann]

I was going to say the same thing that @jeffwidman was going to say, so this is good to me.

[casaper]

@wadkar

I myself have not installed gnu coreutils yet, because I wasn't aware of this being available on my mac. So you've lifted me to the idea here, thanks! 👍

But seeing this brings me to the idea to look if it'd make sense to do something similar with darwin users having gnu- programmes installed.

I for example, have gnu-sed, gnu-tar and gnu-getopt because I really don't like their standard darwin counterparts.

[belak]

This actually already exists in https://github.com/sorin-ionescu/prezto/tree/master/modules/gnu-utility.

On a similar note, maybe it would make more sense to only change to the g-prefixed tools if gnu-utility is enabled.

[indrajitr]

Mostly, good idea. But there might be a way to minimize user surprise but accommodating the corner cases on a "best effort" basis. What say?

[indrajitr]

Shouldn't we consider honoring user configured ':prezto:module:gnu-utility' zstyle instead of assuming g?
Granted Homebrew doesn't honor customizing g prefix for gnu coreutils anymore, but macport still does.

Besides, if a user loads gnu-utility module, both ls and gls would be candidate for alias modification. Shouldn't we support both?

[indrajitr]

FWIW, it might be tricky with some of the g_ prefixed GNU utility commands/aliases -- particularly the ones used with git module (gls is aliased to git log for example).

[belak]

Good catches. I'm not 100% sure what the proper fix is on this... coreutils are a bit of a pain to detect and work with especially with the git aliases.

[indrajitr]

Took another (rather opinionated) attempt at addressing this here #1917. Criticism/comment appreciated :)