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Configure neovim for rust development

David on January 03, 2020

nvim's 0.5.0 release includes a native lsp-client: nvim-lsp. I have toyed with neovim for a while as a long time vim user and decided to make the ...

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David • Jan 6 '20

I'm testing this out as my "daily driver" for coding in rust. There are definitely some rough edges! I'll update with my improvements once I've smoothed things out :)

maxdevjs • Mar 11 '20 • Edited

Hello, great article.

How did you install clippy (and in what OS)?

I mean, does rustup component add clippy actually (still) work for you?

maxdevjs • Mar 12 '20

Never mind, the rustup package I installed had issues with clippy.

David • Mar 12 '20

I've not heard of that before, the rustup team might be interested in your experience. Not sure where to feed that back exactly but a GitHub issue would be a good guess :)

github.com/rust-lang/rustup/issues

I'm just on Linux, Ubuntu.

maxdevjs • Mar 12 '20

Thank you for the reply.

Short story: I started installing rustup as package for the distro that I use (Solus) and it has issues ending with a clippy-driver failure (everything else seems to work well).

rustup installed with the curl scripted works fine so far, actually.

Oisín • Jul 12 '20

Hmm. I don't know why, but the autocompletion with nvim-lsp / deocomplete-lsp seems to be messed up for me.
I have a struct with a field "curr". In a function that takes an instance of that struct, I typed "self." and got the pop with its fields including "curr". When I selected that with <C-n> (same with (super)tab), it inserted an extra copy of the whole line, so I ended up with self. self.curr instead of self.curr.

Might have to go back to Neovim 0.4.3 and/or use autozimu's language client plugin again.

Full Name • May 16 '20

New to neovim (and vi variations in general). I'm definitely feeling a bit lost here. I'm now getting this error on startup:

E5108: Error executing lua vim.lua:282: module 'vim.uri' not found:
        no field package.preload['vim.uri']

And that's with my init.vim stripped down to only the lsp plugin

call plug#begin()
" language server
Plug 'neovim/nvim-lsp'
call plug#end()

" setup rust_analyzer LSP (IDE features)
lua require'nvim_lsp'.rust_analyzer.setup{}

The closest I've found via google is a gitter message that notes "you have a borked install" and provides no further detail. Any help would be cool.

Full Name • May 19 '20

Nvm. I ended up building and installing the current HEAD from source. Pretty painless (instructions are on the neovim repo), definitely more successful for me than whacking archive contents somewhere on my path. The rest seemed to more or less work.

One quick easy win: add the autocommands to an augroup, and start it with au! to avoid duplication if you source your vim config while running. Probably obvious to vim veterans, but new and super useful for me.
eg

augroup rust_config
  " delete any old autocommands
  au!
  " rustfmt on write using autoformat
  autocmd BufWrite *.rs :Autoformat
augroup END

In hindsight perhaps your target audience did not include new vim users, but some of these basics (i guess?) would be helpful for any of us considering a switch and coincidentally also working in Rust.

Fernando B 🚀 • Apr 15 '20

New rust user here, tempting to update nvim to 0.5.0 but don't want to break current functionality, are there any other ways pre 0.5.0? I use deoplete for python, c, c++.

Alberto Castillo G. • Apr 17 '20

Hi, I'm using 0.4.3 and I currently use autozimu/LanguageClient-neovim plugin. It already has direct integration with deoplete and can connect to any Language Server, for Rust you only need rls installed and provide the server initialization command. You'll find the Rust setup in the repo readme.

Fernando B 🚀 • Apr 17 '20

Thanks for the tip! I'll try that this weekend for sure. Saludos!