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feat: improve LSP setup for nvim > 0.11
Based on nvim-lua#1590 And use `expert` for Elixir
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‎init.lua‎

Lines changed: 94 additions & 87 deletions
Original file line numberDiff line numberDiff line change
@@ -619,94 +619,91 @@ require('lazy').setup({
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},
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}
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-- LSP servers and clients are able to communicate to each other what features they support.
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-- By default, Neovim doesn't support everything that is in the LSP specification.
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-- When you add blink.cmp, luasnip, etc. Neovim now has *more* capabilities.
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-- So, we create new capabilities with blink.cmp, and then broadcast that to the servers.
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--
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-- Enable the following language servers
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-- Feel free to add/remove any LSPs that you want here. They will automatically be installed.
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--
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-- Add any additional override configuration in the following tables. Available keys are:
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-- - cmd (table): Override the default command used to start the server
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-- - filetypes (table): Override the default list of associated filetypes for the server
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-- - capabilities (table): Override fields in capabilities. Can be used to disable certain LSP features.
629-
-- - settings (table): Override the default settings passed when initializing the server.
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-- For example, to see the options for `lua_ls`, you could go to: https://luals.github.io/wiki/settings/
630+
-- NOTE: The following line is now commented as blink.cmp extends capabilites by default from its internal code:
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-- https://github.com/Saghen/blink.cmp/blob/102db2f5996a46818661845cf283484870b60450/plugin/blink-cmp.lua
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-- It has been left here as a comment for educational purposes (as the predecessor completion plugin required this explicit step).
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-- local capabilities = require("blink.cmp").get_lsp_capabilities()
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--
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-- Language servers can broadly be installed in the following ways:
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-- 1) via the mason package manager; or
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-- 2) via your system's package manager; or
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-- 3) via a release binary from a language server's repo that's accessible somewhere on your system.
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-- The servers table comprises of the following sub-tables:
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-- 1. mason
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-- 2. others
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-- Both these tables have an identical structure of language server names as keys and
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-- a table of language server configuration as values.
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---@class LspServersConfig
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---@field mason table<string, vim.lsp.Config>
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---@field others table<string, vim.lsp.Config>
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local servers = {
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-- clangd = {},
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-- gopls = {},
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-- pyright = {},
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-- rust_analyzer = {},
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-- ... etc. See `:help lspconfig-all` for a list of all the pre-configured LSPs
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--
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-- Some languages (like typescript) have entire language plugins that can be useful:
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-- https://github.com/pmizio/typescript-tools.nvim
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--
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-- But for many setups, the LSP (`ts_ls`) will work just fine
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-- ts_ls = {},
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--
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lua_ls = {
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-- cmd = { ... },
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-- filetypes = { ... },
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-- capabilities = {},
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settings = {
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Lua = {
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completion = {
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callSnippet = 'Replace',
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-- Add any additional override configuration in the following tables. Available keys are:
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-- - cmd (table): Override the default command used to start the server
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-- - filetypes (table): Override the default list of associated filetypes for the server
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-- - capabilities (table): Override fields in capabilities. Can be used to disable certain LSP features.
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-- - settings (table): Override the default settings passed when initializing the server.
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-- For example, to see the options for `lua_ls`, you could go to: https://luals.github.io/wiki/settings/
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-- Feel free to add/remove any LSPs here that you want to install via Mason. They will automatically be installed and setup.
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mason = {
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-- clangd = {},
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-- gopls = {},
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-- pyright = {},
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-- rust_analyzer = {},
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-- ... etc. See `:help lspconfig-all` for a list of all the pre-configured LSPs
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--
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-- Some languages (like typescript) have entire language plugins that can be useful:
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-- https://github.com/pmizio/typescript-tools.nvim
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--
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-- But for many setups, the LSP (`ts_ls`) will work just fine
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-- ts_ls = {},
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--
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lua_ls = {
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-- cmd = { ... },
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-- filetypes = { ... },
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-- capabilities = {},
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settings = {
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Lua = {
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completion = {
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callSnippet = 'Replace',
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},
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-- You can toggle below to ignore Lua_LS's noisy `missing-fields` warnings
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-- diagnostics = { disable = { 'missing-fields' } },
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},
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-- You can toggle below to ignore Lua_LS's noisy `missing-fields` warnings
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-- diagnostics = { disable = { 'missing-fields' } },
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},
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},
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},
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-- -- TODO: is it properly configured?
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-- elixirls = {
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-- settings = {
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-- elixirLS = {
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-- dialyzerEnabled = false,
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-- incrementalDialyzer = false,
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-- suggestSpecs = false,
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-- fetchDeps = false,
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-- mcpEnabled = true,
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-- },
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-- },
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-- },
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expert = {
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-- Use Nightly Builds
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-- https://github.com/elixir-lang/expert/tree/main?tab=readme-ov-file#nightly-builds
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cmd = { '/Users/nicolognudi/code/personal/expert_darwin_arm64' },
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root_markers = { 'mix.exs', '.git' },
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filetypes = { 'elixir', 'eelixir', 'heex' },
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},
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ts_ls = {},
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typos_lsp = {
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init_options = {
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-- Custom config. Used together with a config file found in the workspace or its parents,
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-- taking precedence for settings declared in both.
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-- Equivalent to the typos `--config` cli argument.
684-
config = '~/.config/typos/typos.toml',
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-- How typos are rendered in the editor, can be one of an Error, Warning, Info or Hint.
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-- Defaults to error.
687-
diagnosticSeverity = 'Warning',
682+
expert = {
683+
-- Use Nightly Builds
684+
-- https://github.com/elixir-lang/expert/tree/main?tab=readme-ov-file#nightly-builds
685+
cmd = { '/Users/nicolognudi/code/personal/expert_darwin_arm64' },
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root_markers = { 'mix.exs', '.git' },
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filetypes = { 'elixir', 'eelixir', 'heex' },
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},
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ts_ls = {},
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typos_lsp = {
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init_options = {
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-- Custom config. Used together with a config file found in the workspace or its parents,
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-- taking precedence for settings declared in both.
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-- Equivalent to the typos `--config` cli argument.
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config = '~/.config/typos/typos.toml',
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-- How typos are rendered in the editor, can be one of an Error, Warning, Info or Hint.
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-- Defaults to error.
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diagnosticSeverity = 'Warning',
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},
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},
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},
690-
}
691-
692-
---@type MasonLspconfigSettings
693-
require('mason-lspconfig').setup {
694-
ensure_installed = {}, -- explicitly set to an empty table (Kickstart populates installs via mason-tool-installer)
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-- NOTE: When the keys of servers are passed as a table to automatic_enable,
696-
-- it causes mason-lspconfig to ignore any LSPs that are installed via Mason
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-- but not explicitly listed in servers.
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-- https://github.com/nvim-lua/kickstart.nvim/pull/1475/files#r2094166972
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automatic_enable = vim.tbl_keys(servers or {}),
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-- TODO: remove this ?
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-- handlers = {
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-- function(server_name)
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-- local config = servers[server_name] or {}
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-- vim.lsp.config(server_name, config)
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-- -- It should not be necessary with Mason 2
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-- -- https://github.com/nvim-lua/kickstart.nvim/pull/1475#discussion_r2077249925
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-- -- vim.lsp.enable(server_name)
708-
-- end,
709-
-- },
702+
-- This table contains config for all language servers that are *not* installed via Mason.
703+
-- Structure is identical to the mason table from above.
704+
others = {
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-- dartls = {},
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},
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}
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-- Ensure the servers and tools above are installed
@@ -722,20 +719,30 @@ require('lazy').setup({
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--
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-- You can add other tools here that you want Mason to install
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-- for you, so that they are available from within Neovim.
725-
local ensure_installed = vim.tbl_keys(servers or {})
722+
local ensure_installed = vim.tbl_keys(servers.mason or {})
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vim.list_extend(ensure_installed, {
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'stylua', -- Used to format Lua code
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'markdownlint', -- Used to format Markdown files
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})
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require('mason-tool-installer').setup { ensure_installed = ensure_installed }
731-
-- Installed LSPs are configured and enabled automatically with mason-lspconfig
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-- The loop below is for overriding the default configuration of LSPs with the ones in the servers table
733-
for server_name, config in pairs(servers) do
734-
vim.lsp.config(server_name, config)
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-- Either merge all additional server configs from the `servers.mason` and `servers.others` tables
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-- to the default language server configs as provided by nvim-lspconfig or
729+
-- define a custom server config that's unavailable on nvim-lspconfig.
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for server, config in pairs(vim.tbl_extend('keep', servers.mason, servers.others)) do
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if not vim.tbl_isempty(config) then
732+
vim.lsp.config(server, config)
733+
end
735734
end
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737-
-- NOTE: Some servers may require an old setup until they are updated. For the full list refer here: https://github.com/neovim/nvim-lspconfig/issues/3705
738-
-- These servers will have to be manually set up with require("lspconfig").server_name.setup{}
736+
-- After configuring our language servers, we now enable them
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---@type MasonLspconfigSettings
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require('mason-lspconfig').setup {
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ensure_installed = {}, -- explicitly set to an empty table (Kickstart populates installs via mason-tool-installer)
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automatic_enable = true, -- automatically run vim.lsp.enable() for all servers that are installed via Mason
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}
742+
-- Manually run vim.lsp.enable for all language servers that are *not* installed via Mason
743+
if not vim.tbl_isempty(servers.others) then
744+
vim.lsp.enable(vim.tbl_keys(servers.others))
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end
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end,
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},
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