FR: Modular Analyzers

[eatnumber1]

Filing this as a feature request as I don't think I'll have time to do this for a while.

I've got a handful of custom analyzers that aren't broadly useful (they apply to internal tools). Currently, the analyzers have to be patched into ShellCheck's source manually. This makes upgrades a bit more painful than necessary.

Would a way of plugging in externally authored analyzers to ShellCheck be reasonable?

[koalaman]

How about a file Custom.hs that is essentially empty and doesn't change much or at all between versions?

There would be no guarantees, but it would avoid having to patch active files

[eatnumber1]

An essentially empty file would be sufficient, but still require some minor patching to do upgrades.

A friend expressed some interest in looking into doing this as a proper module system over the holidays though, so let's actually hold off until after the holidays to see if he does decide to do it.