title: Setup For Rust
tags: vim nvim neovim rust

# Dreams Of Code Video
From [this youtube video](https://www.youtube.com/watch?v=mh_EJhH49Ms)
His [config from that video is on this github](https://github.com/dreamsofcode-io/neovim-rust)

## neovim for rust

* nvchad
* also look up astro is another neovim config

install chad (do this in `~/.config/chad`)
and use e.g. `NVIM_APPNAME=chad` when launching)

## code completion
### lsp server
rust analyzer:
```
rustup component add rust-analyzer
```
or
```
nvim
lua/custom/chadrc.lua
M.ui = { theme = 'catppuccin'}
M.plugins = 'custom.plugins'
create lua/custom/plugins.lua
===
local plugins {
  "williamboman/mason.nvim",
  opts = {
    ensure_installed = {
      "rust-analyzer",
    },
  },
}
return plugins
===
reload nvim
===
:MasonInstallAll
===
change lsp config to rust-analyzer
in lua/custom/plugins.lua
  {
    "neovim/nvim-lspconfig",
    config = function()
      require "plugins.configs.lspconfig",
      require "custom.configs.lspcnfig"
    end,
  },
}
===
create lua/custom/configs/lspconfig.lua
local on_attach = require("plugins.configs.lspconfig").on_attach
local capabilities = require("plugins.configs.lspconfig").capabilities
local lspconfig = require("lspconfig")
local util = require "lspconfig/util"

lspconfig.rust_analyzer.setup({
  on_attach = on_attach,
  capabilities = capabilities,
  filetypes = { "rust" },
  root_dir = util.root_pattern("Cargo.toml"),
  settings = {
    [ 'rust-analyzer' ] = {
      cargo = {
        allFeatures = true,
      },
    },
  },    
})
```
Format on save:
```
rust-vim plugin

plugins = {
  ...
  {
    "rust-lang/rust.vim",
    ft = "rust",
    init = function()
      vim.g.rustfmt_autosave = 1
    end
  },
}
```