`:LushImport` broken

[uloco]

When I try to run :LushImport I get the following error:

E5108: Error executing lua ...m/site/pack/packer/start/lush.nvim/lua/lush/importer.lua:103: bad argument #1 to 'len' (string expected, got nil)
stack traceback:
        [builtin:len]: in function 'len'
        ...m/site/pack/packer/start/lush.nvim/lua/lush/importer.lua:103: in function 'import'
        [string ":lua"]:1: in main chunk

[rktjmp]

Can't reproduce it locally, but it might be related to the theme in use, as it's failing to parse out a linked group name.

https://github.com/rktjmp/lush.nvim/blob/979f4d206e7111c2b710aa85cc723f6140d2ec98/lua/lush/importer.lua#L101-L105

Do you have more details on your config, probably just the theme you're trying to import.

[uloco]

You are right, looks like there is something wrong with my theme. I'm porting bluloco from vscode to neovim and this is the repo https://github.com/uloco/bluloco.nvim on branchdevelop.

I probably don't need this command since theme is quite big already, but I wanted to see which highlight groups I missed.

[rktjmp]

I'm a bit confused, you shouldn't need to use the importer unless you have an existing neovim theme that you want to port to lush (i.e. port tokyonight into lush for your own changes). Otherwise you should be able to open your theme and run :Lushify.

What theme were you trying to import?

[uloco]

oh ok maybe I misunderstood the purpose. I thought I could also import my existing lush theme to see all highlight groups (also the ones I did not theme explicitly).

[rktjmp]

Nah, it can only see what is defined by the loaded theme, so if you load your own theme you'll just get back the same data (or should...).

What you may want to do is load up some popular themes, import them, stick them all in one file, sort the file and de-dup (or count the dups) the group names. That would give you a good idea of whats standard and whats most popular.