Allow custom highlighting for different files/directories

[kennykaye]

Contributing guidelines

• I have read CONTRIBUTING.md
• I have read CODE_OF_CONDUCT.md

Module(s)

mini.files

Description

I would like to add support for user-defined highlighting inside mini.files. This would allow for users to define something like:

require("mini.files").setup({
  content = {
    highlight = function(fs_entry)
      if fs_entry.fs_type == 'file' then
        if vim.startswith(fs_entry.name, '.') then
          return 'MiniFilesHidden'
        end
      end
      return nil
    end,
  }
})

Resulting in:

Here is a draft implementation. If this is something you would be interested in, I could move this against the main project.

Alternatives considered:

• Adding hardcoded support for a MiniFilesHidden highlight group

[echasnovski]

Thanks for the suggestion!

That's an interesting idea. I am not opposed to it initially, but will take time to thing this through. Plan to get back to it after 0.16.0 release.