Update nix.vim

[SRGOM]

I removed the custom formatting- it's never included in file type plugins. Seeing as yours is a super popular plugin, I figured you wouldn't mind me changing this. Thanks.

[LnL7]

I'm not sure what the problem is, it's the indentation from the nix styleguide. And it's pretty common for lanuage plugins to set this by default, it's not global.

Use 2 spaces of indentation per indentation level in Nix expressions, 4 spaces in shell scripts.

• https://github.com/vim/vim/blob/4ca41534b726c4116d2e430e877e34146b4d4831/runtime/ftplugin/python.vim#L118
• https://github.com/vim/vim/blob/4ca41534b726c4116d2e430e877e34146b4d4831/runtime/ftplugin/ruby.vim#L142
• https://github.com/elixir-editors/vim-elixir/blob/98c03047d15dfa62cedf56e27bffb03772d41753/ftplugin/elixir.vim#L18

[SRGOM]

Thanks for considering my pull request. Would you be open to me adding the g:nix_recommended_style if check around the expand tab code, how python and ruby have done it?

You're right about Nix recommending it, of course.

[LnL7]

Yeah, I don't understand the usecase but adding an option to disable it would be fine.

[SRGOM]

Thanks, let me know what you think.

[SRGOM]

Thank you, I've made the recommended changes. Please let me know if there is anything else needed.

[LnL7]

That's perfect, Thanks!

[SRGOM]

Thank you for the review.

[asymmetric]

AFAIU, this is not set by default to 1, right? So the recommended style is opt-in, correct?

The Python plugin, for reference, checks whether the variable is defined.