# This module sets up LSP server configurations for Neovim. {pkgs, ...}: { programs.neovim.plugins = [ { plugin = pkgs.vimPlugins.nvim-lspconfig; type = "lua"; config = '' local lspconfig = require("lspconfig") local util = require("lspconfig.util") -- Mappings. -- See `:help vim.diagnostic.*` for documentation on any of the below functions local opts = { noremap=true, silent=true } vim.keymap.set('n', 'e', vim.diagnostic.open_float, opts) vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts) vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts) vim.keymap.set('n', 'q', vim.diagnostic.setloclist, opts) -- Use an on_attach function to only map the following keys -- after the language server attaches to the current buffer local on_attach = function(client, bufnr) -- Enable completion triggered by vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc') -- Mappings. -- See `:help vim.lsp.*` for documentation on any of the below functions local bufopts = { noremap=true, silent=true, buffer=bufnr } vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts) vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts) vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts) vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts) vim.keymap.set('n', '', vim.lsp.buf.signature_help, bufopts) vim.keymap.set('n', 'wa', vim.lsp.buf.add_workspace_folder, bufopts) vim.keymap.set('n', 'wr', vim.lsp.buf.remove_workspace_folder, bufopts) vim.keymap.set('n', 'wl', function() print(vim.inspect(vim.lsp.buf.list_workspace_folders())) end, bufopts) vim.keymap.set('n', 'D', vim.lsp.buf.type_definition, bufopts) vim.keymap.set('n', 'rn', vim.lsp.buf.rename, bufopts) vim.keymap.set('n', 'ca', vim.lsp.buf.code_action, bufopts) vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts) vim.keymap.set('n', 'f', function() vim.lsp.buf.format { async = true } end, bufopts) vim.keymap.set('n', 's', function() vim.cmd[[ClangdSwitchSourceHeader]] end, bufopts) -- Rust-analyzer supports inlay hints vim.lsp.inlay_hint.enable(true, { bufnr = bufnr }) end -- Use a loop to conveniently call 'setup' on multiple servers and -- map buffer local keybindings when the language server attaches local servers = { pyright = { cmd = { "${pkgs.pyright}/bin/pyright-langserver", "--stdio" } }, nixd = { cmd = { "${pkgs.nixd}/bin/nixd" } }, denols = { init_options = { enable = true, unstable = true, lint = true, }, cmd = { "${pkgs.unstable.deno}/bin/deno", "lsp", "--unstable" }, root_dir = function(startpath) if util.find_package_json_ancestor(startpath) then -- This is a Node project; let tsserver handle this one. -- This exactly mirrors how typescript-langauge-server yields to this server for Deno projects. return nil else -- Otherwise, we try to find the root or -- default to the current directory. return util.root_pattern("deno.json", "deno.jsonc", ".git")(startpath) or util.path.dirname(startpath) end end, }, -- NOTE: Will be renamed to ts_ls shortly -- See: https://github.com/neovim/nvim-lspconfig/commit/bdbc65aadc708ce528efb22bca5f82a7cca6b54d tsserver = { cmd = { "${pkgs.nodePackages_latest.typescript-language-server}/bin/typescript-language-server", "--stdio" }, root_dir = function(startpath) local find_deno_root_dir = util.root_pattern("deno.json", "deno.jsonc") if find_deno_root_dir(startpath) then -- This is a Deno project; let deno-lsp handle this one. -- This exactly mirrors how deno-lsp yields to this server for Node projects. return nil else -- Otherwise fall back to the usual resolution method. -- See: https://github.com/neovim/nvim-lspconfig/blob/056f569f71e4b726323b799b9cfacc53653bceb3/lua/lspconfig/server_configurations/ts_ls.lua#L15 return util.root_pattern("tsconfig.json", "jsconfig.json", "package.json", ".git")(startpath) end end, -- We also have to disallow starting in without a root directory, as otherwise returning -- nil from find_root will just cause the LSP to be spawned in single file mode instead of yielding to deno-lsp. -- -- This has the side effect that Deno LSP will be preferred in a single file context which is what we want! -- -- See: https://github.com/neovim/nvim-lspconfig/blob/056f569f71e4b726323b799b9cfacc53653bceb3/lua/lspconfig/manager.lua#L281-L286 single_file_support = false, }, clangd = { cmd = { "${pkgs.clang-tools}/bin/clangd" }, }, nimls = { cmd = { "${pkgs.nimlsp}/bin/nimlsp" }, }, rust_analyzer = { cmd = { "${pkgs.rust-analyzer}/bin/rust-analyzer" }, }, rust_analyzer = { cmd = { "${pkgs.rust-analyzer}/bin/rust-analyzer" }, }, gleam = { cmd = { "${pkgs.gleam}/bin/gleam", "lsp" }, }, }; for server, config in pairs(servers) do -- set common options config.on_attach = on_attach; config.debounce_text_changes = 150; lspconfig[server].setup(config) end ''; } ]; } # I spent like an hour writing this, only to find it was a pretty bad idea. # # nixToLua = s: # if builtins.isAttrs s then # let # renderAttr = name: value: "[ [==========[" + name + "]==========] ] = " + (nixToLua value); # attrsList = map (name: renderAttr name s.${name}) (lib.attrNames s); # attrsListStr = lib.concatStringsSep ", " attrsList; # in # "{ ${attrsListStr} }" # else if builtins.isList s then # "{ " + (lib.concatStringsSep ", " (map nixToLua s)) + " }" # else if builtins.isString s then # # Oh boy I sure hope `s` doesn't contain "]==========]". # "[==========[" + s + "]==========]" # else if builtins.isInt s || builtins.isFloat s then # toString s # else # throw "Cannot convert ${builtins.typeOf s} to Lua value!";