Adding a scala configuration

.gitignore

@@ -0,0 +1 @@
+.DS_Store

nvim/nvim/config/nvim.ln/lua/lsp/handlers.lua

@@ -54,6 +54,7 @@ local lsp_keymaps = function(bufnr)
 		["<leader>l"] = {
 			r = { '<cmd>lua vim.lsp.buf.rename()<CR>', "Rename" },
 			a = { '<cmd>lua vim.lsp.buf.code_action()<CR>', "Code action" },
+			l = { '<cmd>lua vim.lsp.codelens.run()<CR>', "Run code lens" },
 			f = { '<cmd>lua vim.lsp.buf.formatting()<CR>', "Format" },
 		}
 	}, {
@@ -61,9 +62,14 @@ local lsp_keymaps = function(bufnr)
 	})
 end
 
+local lsp_codelens = function()
+	-- vim.cmd [[ autocmd BufEnter,CursorHold,InsertLeave <buffer> lua vim.lsp.codelens.refresh() ]]
+end
+
 M.on_attach = function(client, bufnr)
 	lsp_keymaps(bufnr)
 	lsp_highlight_document(client)
+	lsp_codelens()
 end
 
 local capabilities = vim.lsp.protocol.make_client_capabilities()

nvim/nvim/config/nvim.ln/lua/lsp/init.lua

@@ -2,4 +2,5 @@ require "lsp.lsp-install"
 require("lsp.handlers").setup()
 require "lsp.cmp"
 require "lsp.signature"
+require "lsp.metals"
 

nvim/nvim/config/nvim.ln/lua/lsp/metals.lua

@@ -0,0 +1,32 @@
+local ok, metals = pcall(require, "metals")
+if not ok then
+	return
+end
+
+-- NOTE: You may or may not want java included here. You will need it if you want basic Java support
+-- but it may also conflict if you are using something like nvim-jdtls which also works on a java filetype
+-- autocmd.
+vim.cmd [[
+	augroup lsp
+		au!
+		au FileType java,scala,sbt lua require("metals").initialize_or_attach(metals_config)
+	augroup end
+]]
+
+metals_config = metals.bare_config()
+
+-- Example of settings
+metals_config.settings = {
+	showImplicitArguments = true,
+}
+metals_config.on_attach = function(client, bufnr)
+	metals.setup_dap()
+	require "lsp.handlers".on_attach(client, bufnr)
+end
+
+local tok, telescope = pcall(require, "telescope")
+if not tok then
+	return
+end
+telescope.load_extension('metals')
+

nvim/nvim/config/nvim.ln/lua/plugins.lua

@@ -79,6 +79,7 @@ return packer.startup(function(use)
 		'williamboman/nvim-lsp-installer',
 	}
 	use "Hoffs/omnisharp-extended-lsp.nvim"
+	use({'scalameta/nvim-metals', requires = { "nvim-lua/plenary.nvim" }})
 	use "b0o/schemastore.nvim"
 	use {
 		"hrsh7th/cmp-nvim-lsp",