feat: install plugin lspinstaller

lua/config/lspconfig.lua

@@ -1,33 +1,40 @@
-local lspconfig = require('lspconfig')
 local M = {}
 
 -- debounce_text_changes = delay, between changing something and lsp updating
 M.flags = { debounce_text_changes = 150 }
 
-M.default_settings = {
-	Lua = {
-		runtime = {
-			-- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
-			version = 'LuaJIT',
-			-- Setup your lua path
-			path = vim.split(package.path, ';')
-		},
-		diagnostics = {
-			-- Get the language server to recognize the `vim` global
-			globals = {'vim', 'packer_plugins'}
-		},
-		workspace = {
-			-- Make the server aware of Neovim runtime files
-			library = vim.api.nvim_get_runtime_file("", true)
-		},
-		telemetry = { enable = false }
+local general_settings = { }
+M.server_settings = {
+	sumneko_lua = {
+		Lua = {
+			runtime = {
+				-- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
+				version = 'LuaJIT',
+				-- Setup your lua path
+				path = vim.split(package.path, ';')
+			},
+			diagnostics = {
+				-- Get the language server to recognize the `vim` global
+				globals = {'vim', 'packer_plugins'}
+			},
+			workspace = {
+				-- Make the server aware of Neovim runtime files
+				library = vim.api.nvim_get_runtime_file("", true)
+			},
+			telemetry = { enable = false }
+		}
 	}
 }
 
+-- Apply general settings for each server
+for _, settings in ipairs(M.server_settings) do
+	M.server_settings = vim.tbl_deep_extend("keep", settings, general_settings)
+end
+
 -- Use an on_attach function to only map the following keys
 -- after the language server attaches to the current buffer
 ---@diagnostic disable-next-line: unused-local
-local function on_attach(client, bufnr)
+function M.on_attach(client, bufnr)
   -- Mappings.
   local opts = { noremap = true, silent = true }
 
@@ -43,7 +50,10 @@ local function on_attach(client, bufnr)
   buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>')
   buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>')
   buf_set_keymap('n', 'K', '<cmd>lua vim.lsp.buf.hover()<CR>')
-  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>')
+
+	-- Conflicts with movement between panes
+  -- buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>')
+
   -- buf_set_keymap('n', '<space>wa', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>')
   -- buf_set_keymap('n', '<space>wr', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>')
   -- buf_set_keymap('n', '<space>wl', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>')
@@ -62,64 +72,28 @@ local function on_attach(client, bufnr)
 	-- autocmd BufWritePre *.py lua vim.lsp.buf.formatting_sync(nil, 100)
 end
 
+function M.get_capabilities()
+	local capabilities = vim.lsp.protocol.make_client_capabilities()
 
-local capabilities = vim.lsp.protocol.make_client_capabilities()
-if packer_plugins['cmp-nvim-lsp'] and packer_plugins['cmp-nvim-lsp'].loaded then
-	capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
-end
-
-local function on_init(initialize_params, config)
-	-- print(vim.inspect(capabilities))
-	-- print(vim.inspect(config))
-end
-
--- https://github.com/sumneko/lua-language-server/wiki/Build-and-Run-(Standalone)
-local function getSumnekoPaths()
-	USER = vim.fn.expand('$USER')
-
-	if vim.fn.has("mac") == 1 then
-		local sumneko_root_path = "/Users/" .. USER .. "/.config/nvim/lua-language-server"
-		local sumneko_binary = "/Users/" .. USER .. "/.config/nvim/lua-language-server/bin/macOS/lua-language-server"
-		return sumneko_root_path, sumneko_binary
-	elseif vim.fn.has("unix") == 1 then
-		local sumneko_root_path = "/home/" .. USER .. "/.config/nvim/lua-language-server"
-		local sumneko_binary = "/home/" .. USER .. "/.config/nvim/lua-language-server/bin/Linux/lua-language-server"
-		return sumneko_root_path, sumneko_binary
-	end
-end
-
-local function setupLuaServer()
-	local sumneko_root_path, sumneko_binary = getSumnekoPaths()
-
-	if not sumneko_root_path then
-		print("Unsupported system for sumneko")
-		return
+	if packer_plugins['cmp-nvim-lsp'] and packer_plugins['cmp-nvim-lsp'].loaded then
+		capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
 	end
 
-	lspconfig.sumneko_lua.setup {
-		cmd = {sumneko_binary, "-E", sumneko_root_path .. "/main.lua"},
-    on_attach = on_attach,
-		filetypes = {"lua"},
-		capabilities = capabilities,
-		on_init = on_init,
-    flags = M.flags,
-		settings = M.default_settings
-	}
+	return capabilities
 end
 
-setupLuaServer()
+function M.on_init(initialize_params, config)
+	-- print("lsp init")
+end
 
--- Use a loop to conveniently call 'setup' on multiple servers and
--- map buffer local keybindings when the language server attaches
-local servers = { 'tsserver' }
-for _, name in ipairs(servers) do
-  lspconfig[name].setup {
-    on_attach = on_attach,
-		capabilities = capabilities,
-		on_init = on_init,
-    flags = M.flags,
-		settings = M.default_settings
-  }
+function M.get_server_settings(name)
+	return M.server_settings[name]
+end
+
+---@diagnostic disable-next-line: empty-block
+if packer_plugins['nvim-lsp-installer'] and packer_plugins['nvim-lsp-installer'].loaded then
+	-- local lspconfig = require('lspconfig')
+	-- TODO: Manually do "server:setup{}" if lspinstaller is not loaded
 end
 
 return M

lua/config/lspinstaller.lua

@@ -0,0 +1,27 @@
+local lspconfig_config = require 'config.lspconfig'
+local lsp_instller = require 'nvim-lsp-installer'
+local lsp_installer_servers = require'nvim-lsp-installer.servers'
+local M = {}
+
+local autoinstall_servers = {"sumneko_lua"}
+for _, name in ipairs(autoinstall_servers) do
+	local ok, server = lsp_installer_servers.get_server(name)
+	if ok and not server:is_installed() then
+		server:install()
+	end
+end
+
+local capabilities = lspconfig_config.get_capabilities()
+
+lsp_instller.on_server_ready(function(server)
+	server:setup{
+		on_attach = lspconfig_config.on_attach,
+		on_init = lspconfig_config.on_init,
+		flags = lspconfig_config.flags,
+		capabilities = capabilities,
+		settings = lspconfig_config.get_server_settings(server.name)
+	}
+end)
+
+return M
+

lua/plugins.lua

@@ -80,6 +80,11 @@ local function usePlugins(use)
 		'neovim/nvim-lspconfig',
 		config = [[require 'config.lspconfig']],
 	}
+	use {
+		'williamboman/nvim-lsp-installer',
+		requires = 'neovim/nvim-lspconfig',
+		config = [[require 'config.lspinstaller']]
+	}
 
 	-- Completion
 	use { 'onsails/lspkind-nvim' }