update lua line support formatter and linter

lua/user/lualine.lua

@@ -92,29 +92,77 @@ local file_name = {
 	cond = conditions.buffer_not_empty,
 }
 
+-- start for lsp
+local list_registered_providers_names = function(filetype)
+	local s = require("null-ls.sources")
+	local available_sources = s.get_available(filetype)
+	local registered = {}
+	for _, source in ipairs(available_sources) do
+		for method in pairs(source.methods) do
+			registered[method] = registered[method] or {}
+			table.insert(registered[method], source.name)
+		end
+	end
+	return registered
+end
+
+local null_ls = require("null-ls")
+-- for formatter
+local list_registered = function(filetype)
+	local method = null_ls.methods.FORMATTING
+	local registered_providers = list_registered_providers_names(filetype)
+	return registered_providers[method] or {}
+end
+
+--- for linter
+local alternative_methods = {
+	null_ls.methods.DIAGNOSTICS,
+	null_ls.methods.DIAGNOSTICS_ON_OPEN,
+	null_ls.methods.DIAGNOSTICS_ON_SAVE,
+}
+
+local linter_list_registered = function(filetype)
+	local registered_providers = list_registered_providers_names(filetype)
+	local providers_for_methods = vim.tbl_flatten(vim.tbl_map(function(m)
+		return registered_providers[m] or {}
+	end, alternative_methods))
+
+	return providers_for_methods
+end
+-- end for lsp
+
 local lsp_info = {
 	function()
 		--local msg = "No Active Lsp"
 		local msg = "LS Inactive"
-		local buf_ft = vim.api.nvim_buf_get_option(0, "filetype")
+		-- local buf_ft = vim.api.nvim_buf_get_option(0, "filetype")
+		local buf_ft = vim.bo.filetype
 		local clients = vim.lsp.get_active_clients()
-		if next(clients) == nil then
-			for i, name in ipairs(clients) do
-				msg = msg .. " " .. name
+		-- start register
+		local buf_clients = vim.lsp.buf_get_clients()
+		local buf_client_names = {}
+		if next(buf_clients) == nil then
+			-- TODO: clean up this if statement
+			if type(msg) == "boolean" or #msg == 0 then
+				return "LS Inactive"
 			end
 			return msg
 		end
-		for _, client in ipairs(clients) do
-			local filetypes = client.config.filetypes
-			if filetypes and vim.fn.index(filetypes, buf_ft) ~= -1 then
-				if msg == "LS Inactive" then
-					msg = ""
-					msg = msg .. client.name
-				else
-					msg = msg .. ", " .. client.name
-				end
+		-- add client
+		for _, client in pairs(buf_clients) do
+			if client.name ~= "null-ls" and client.name ~= "copilot" then
+				table.insert(buf_client_names, client.name)
 			end
 		end
+		-- add formatter
+		local supported_formatters = list_registered(buf_ft)
+		vim.list_extend(buf_client_names, supported_formatters)
+		-- add linter
+		local supported_linters = linter_list_registered(buf_ft)
+		vim.list_extend(buf_client_names, supported_linters)
+		-- decomple
+		local unique_client_names = vim.fn.uniq(buf_client_names)
+		local msg = table.concat(unique_client_names, ", ")
 		return msg
 	end,
 	--icon = " ",
@@ -136,7 +184,6 @@ lualine.setup({
 			"Outline",
 			"DressingInput",
 			"toggleterm",
-			"lazy",
 		},
 		always_divide_middle = true,
 	},