feat(rust): add bacon-ls and improve debugging #3212
Conversation
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i just discovered bacon, and it looks awesome, but i don't think lazyvim should swap the default rust LSP everyone is used to, and assume is used ? maybe as a extra extra ? like rust-bacon ? |
This MR does not disable rust-analyzer at all, it just disables the diagnostic if bacon and bacon-ls are used. To me this is pertinent to the Rust extra, but I'll defer to people more experienced with LazyVim. |
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Thanks for the explanation. here is a repro.lua (include the rust.lua, your version not the merged one) -- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")
-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end
-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
vim.fn.system({ "git", "clone", "--filter=blob:none", "https://github.com/folke/lazy.nvim.git", lazypath })
end
vim.opt.runtimepath:prepend(lazypath)
vim.g.lazyvim_rust_diagnostics = "bacon-ls"
if lazyvim_docs then
-- LSP Server to use for Rust.
-- Set to "bacon-ls" to use bacon-ls instead of rust-analyzer.
-- only for diagnostics. The rest of LSP support will still be
-- provided by rust-analyzer.
vim.g.lazyvim_rust_diagnostics = "rust-analyzer"
end
local diagnostics = vim.g.lazyvim_rust_diagnostics or "rust-analyzer"
-- install plugins
local plugins = {
"folke/tokyonight.nvim",
{ "LazyVim/LazyVim", import = "lazyvim.plugins" },
-- add any other plugins here
-- Extend auto completion
{
"hrsh7th/nvim-cmp",
dependencies = {
{
"Saecki/crates.nvim",
event = { "BufRead Cargo.toml" },
opts = {
completion = {
cmp = { enabled = true },
},
},
},
},
---@param opts cmp.ConfigSchema
opts = function(_, opts)
opts.sources = opts.sources or {}
table.insert(opts.sources, { name = "crates" })
end,
},
-- Add Rust & related to treesitter
{
"nvim-treesitter/nvim-treesitter",
opts = function(_, opts)
opts.ensure_installed = opts.ensure_installed or {}
vim.list_extend(opts.ensure_installed, { "ron", "rust", "toml" })
end,
},
-- Ensure Rust debugger is installed
{
"williamboman/mason.nvim",
optional = true,
opts = function(_, opts)
opts.ensure_installed = opts.ensure_installed or {}
vim.list_extend(opts.ensure_installed, { "codelldb" })
if diagnostics == "bacon-ls" then
vim.list_extend(opts.ensure_installed, { "bacon", "bacon-ls" })
end
end,
},
{
"mrcjkb/rustaceanvim",
version = "^4", -- Recommended
ft = { "rust" },
opts = {
server = {
on_attach = function(_, bufnr)
vim.keymap.set("n", "<leader>cR", function()
vim.cmd.RustLsp("codeAction")
end, { desc = "Code Action", buffer = bufnr })
vim.keymap.set("n", "<leader>dr", function()
vim.cmd.RustLsp("debuggables")
end, { desc = "Rust Debuggables", buffer = bufnr })
end,
default_settings = {
-- rust-analyzer language server configuration
["rust-analyzer"] = {
cargo = {
allFeatures = true,
loadOutDirsFromCheck = true,
buildScripts = {
enable = true,
},
},
-- Enable diagnostics if using rust-analyzer
diagnostics = {
enable = diagnostics == "rust-analyzer",
},
-- Add clippy lints for Rust.
checkOnSave = {
enable = diagnostics == "rust-analyzer",
allFeatures = true,
command = "clippy",
extraArgs = { "--no-deps" },
},
procMacro = {
enable = true,
ignored = {
["async-trait"] = { "async_trait" },
["napi-derive"] = { "napi" },
["async-recursion"] = { "async_recursion" },
},
},
},
},
},
},
config = function(_, opts)
-- Configure dap with codelldb
local package_path = require("mason-registry").get_package("codelldb"):get_install_path()
opts.dap = {
adapter = require("rustaceanvim.config").get_codelldb_adapter(
package_path .. "/codelldb",
package_path .. "/extension/lldb/lib/liblldb.dylib"
),
}
vim.g.rustaceanvim = vim.tbl_deep_extend("keep", vim.g.rustaceanvim or {}, opts or {})
end,
},
-- Correctly setup lspconfig for Rust 🚀
{
"neovim/nvim-lspconfig",
opts = {
servers = {
rust_analyzer = {
enabled = false,
},
bacon_ls = {
enabled = diagnostics == "bacon-ls",
},
taplo = {
keys = {
{
"K",
function()
if vim.fn.expand("%:t") == "Cargo.toml" and require("crates").popup_available() then
require("crates").show_popup()
else
vim.lsp.buf.hover()
end
end,
desc = "Show Crate Documentation",
},
},
},
},
setup = {
rust_analyzer = function()
return true
end,
},
},
},
{
"nvim-neotest/neotest",
optional = true,
opts = function(_, opts)
opts.adapters = opts.adapters or {}
vim.list_extend(opts.adapters, {
require("rustaceanvim.neotest"),
})
end,
},
}
require("lazy").setup(plugins, {
root = root .. "/plugins",
})
vim.cmd.colorscheme("tokyonight")
-- add anything else hereand i get some |
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I also tried your PR and don't get any diagnostics from I left out the rust-analyzer stuff in if lazyvim_docs then
-- LSP Server to use for Rust.
-- Set to "bacon-ls" to use bacon-ls instead of rust-analyzer.
-- only for diagnostics. The rest of LSP support will still be
-- provided by rust-analyzer.
vim.g.lazyvim_rust_diagnostics = "rust-analyzer"
end
local diagnostics = vim.g.lazyvim_rust_diagnostics or "rust-analyzer"
return {
recommended = function()
return LazyVim.extras.wants({
ft = "rust",
root = { "Cargo.toml", "rust-project.json" },
})
end,
-- Extend auto completion
{
"hrsh7th/nvim-cmp",
dependencies = {
{
"Saecki/crates.nvim",
event = { "BufRead Cargo.toml" },
opts = {
completion = {
cmp = { enabled = true },
},
},
},
},
---@param opts cmp.ConfigSchema
opts = function(_, opts)
opts.sources = opts.sources or {}
table.insert(opts.sources, { name = "crates" })
end,
},
-- Add Rust & related to treesitter
{
"nvim-treesitter/nvim-treesitter",
opts = { ensure_installed = { "rust", "ron" } },
},
-- Ensure Rust debugger is installed
{
"williamboman/mason.nvim",
optional = true,
opts = function(_, opts)
opts.ensure_installed = opts.ensure_installed or {}
vim.list_extend(opts.ensure_installed, { "codelldb" })
if diagnostics == "bacon-ls" then
vim.list_extend(opts.ensure_installed, { "bacon", "bacon-ls" })
end
end,
},
{
"mrcjkb/rustaceanvim",
version = "^4", -- Recommended
ft = { "rust" },
opts = {
server = {
on_attach = function(_, bufnr)
vim.keymap.set("n", "<leader>cR", function()
vim.cmd.RustLsp("codeAction")
end, { desc = "Code Action", buffer = bufnr })
vim.keymap.set("n", "<leader>dr", function()
vim.cmd.RustLsp("debuggables")
end, { desc = "Rust Debuggables", buffer = bufnr })
end,
default_settings = {
-- rust-analyzer language server configuration
["rust-analyzer"] = {
cargo = {
allFeatures = true,
loadOutDirsFromCheck = true,
buildScripts = {
enable = true,
},
},
-- Enable diagnostics if using rust-analyzer
diagnostics = {
enable = diagnostics == "rust-analyzer",
},
-- Add clippy lints for Rust.
checkOnSave = {
enable = diagnostics == "rust-analyzer",
allFeatures = true,
command = "clippy",
extraArgs = { "--no-deps" },
},
procMacro = {
enable = true,
ignored = {
["async-trait"] = { "async_trait" },
["napi-derive"] = { "napi" },
["async-recursion"] = { "async_recursion" },
},
},
},
},
},
},
config = function(_, opts)
-- Configure dap with codelldb
local package_path = require("mason-registry").get_package("codelldb"):get_install_path()
opts.dap = {
adapter = require("rustaceanvim.config").get_codelldb_adapter(
package_path .. "/codelldb",
package_path .. "/extension/lldb/lib/liblldb.dylib"
),
}
vim.g.rustaceanvim = vim.tbl_deep_extend("keep", vim.g.rustaceanvim or {}, opts or {})
if vim.fn.executable("rust-analyzer") == 0 then
LazyVim.error(
"**rust-analyzer** not found in PATH, please install it.\nhttps://rust-analyzer.github.io/",
{ title = "rustaceanvim" }
)
end
end,
},
-- Correctly setup lspconfig for Rust 🚀
{
"neovim/nvim-lspconfig",
opts = {
servers = {
bacon_ls = {
enabled = diagnostics == "bacon-ls",
},
taplo = {
keys = {
{
"K",
function()
if vim.fn.expand("%:t") == "Cargo.toml" and require("crates").popup_available() then
require("crates").show_popup()
else
vim.lsp.buf.hover()
end
end,
desc = "Show Crate Documentation",
},
},
},
},
},
},
{
"nvim-neotest/neotest",
optional = true,
opts = {
adapters = {
["rustaceanvim.neotest"] = {},
},
},
},
} |
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So, I started |
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Bacon requires a specific configuration to work with the language server. Have you followed the installation instructions here by any chance here https://github.com/crisidev/bacon-ls/blob/main/README.md? |
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Personally no I didn't check further, sorry, as usually lsp are plug and play, especially in lazyvim. i don't know where to put the [export]
enabled = true
path = ".bacon-locations"
line_format = "{kind}:{path}:{line}:{column}:{message}"but i guess it's not required as there is the same config in lazyvim spec. thanks ! |
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I'll try to finish the PR early next week btw, the mason.nvim inclusion for bacon and bacon-ls was merged a couple of days ago. |
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In the same directory where I left the |
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Following @dpetka2001 instruction and my repro.lua i got it working edit: it's my personal opinion, just throwing some first impression
It would need a few things for it to be usable for me: |
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@mirsella Seriously? How? Why is it not working for me? I'll try your |
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@dpetka2001 i was using mason's bacon and bacon-ls btw don't know if it can change anything 🤷 |
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Can you share the content of I'll try to use the repro this weekend to check what's going on with your config, because "it works on my computer" 😞 |
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Funnily enough I just created a new Rust project with |
crisidev
changed the title
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This is ready for review now! |
Co-authored-by: Iordanis Petkakis <12776461+dpetka2001@users.noreply.github.com>
| opts.ensure_installed = opts.ensure_installed or {} | ||
| vim.list_extend(opts.ensure_installed, { "codelldb" }) | ||
| if diagnostics == "bacon-ls" then | ||
| vim.list_extend(opts.ensure_installed, { "bacon", "bacon-ls" }) |
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You could also remove bacon-ls from mason.ensure_installed, since LSP servers that are defined in nvim-lspconfig spec get installed automatically if they are enabled. This is just a suggestion and doesn't mean you absolutely have to do it. It's just how the rest of LazyVim LSP servers are defined as well throughout the codebase. Corresponding code snippet in LazyVim that takes care of it.
PS: Also keep in mind I'm just a regular user like you and everything I comment on is just a suggestion from my part. The maintainer has the final say.
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Nice. I'll change this, it will make the code lighter..
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bacon needs to be remain if I am not mistaken, since it's not an lsp server itself..
Changes
NOTE: the PR will be in draft until mason-org/mason-registry#5774 is not merged
Some improvements in the Rust extra
codelldbadapter for rustacean.nvimbacon-lscan be used as an alternative torust-analyzerfor diagnostics, improvingrust-analyzerperformances. This is configured byvim.g.lazyvim_rust_diagnostics, which can be set torust-analyzerorbacon-lsp.