Added null-ls plugin.This enables certain tools to act as LSPs

(formatters, linters, etc)

.config/nvim/lua/plugins/lspconfig.lua

@@ -1,8 +1,7 @@
-
 local mason_lspconfig = require "mason-lspconfig"
 
 mason_lspconfig.setup({
-    ensure_installed = { "sumneko_lua", "rust_analyzer" , "texlab", "hls"},
+	ensure_installed = { "sumneko_lua", "rust_analyzer", "texlab", "hls", "yamlls" },
 	automatic_installation = true
 })
 
@@ -42,6 +41,9 @@ local on_attach = function(client, bufnr)
 	--		pattern = '<buffer>',
 	--		callback =  function() vim.lsp.buf.format({ async = true }) end
 	--	})
+	if client.name == "yamlls" then
+		client.server_capabilities.document_formatting = true
+	end
 end
 
 local lspconfig = require "lspconfig"

.config/nvim/lua/plugins/null-ls.lua

@@ -0,0 +1,10 @@
+local null_ls = require("null-ls")
+
+null_ls.setup({
+	sources = {
+		null_ls.builtins.formatting.rustfmt,
+		null_ls.builtins.formatting.prettierd.with({
+			filetypes = { "html", "json", "yaml", "markdown" },
+		}),
+	}
+})

.config/nvim/lua/plugins/packer.lua

@@ -1,4 +1,3 @@
-
 local packer = require("packer")
 
 local plugins = packer.startup({ function(use)
@@ -41,6 +40,12 @@ local plugins = packer.startup({function(use)
 			require 'plugins.lualine'
 		end
 	}
+
+	use { 'rcarriga/nvim-notify',
+		config = function()
+			vim.notify = require("notify")
+		end
+	}
 	-------------------------------------------------------LSP----------------------------------------------
 
 	use { "williamboman/mason.nvim",
@@ -57,6 +62,12 @@ local plugins = packer.startup({function(use)
 		end
 	}
 
+	use { "jose-elias-alvarez/null-ls.nvim",
+		config = function()
+			require "plugins.null-ls"
+		end
+	}
+
 	use { "L3MON4D3/LuaSnip",
 		requires = {
 			"rafamadriz/friendly-snippets",