Setup nvim for elm-development

.config/nvim/lua/plugins/lsp.lua

@@ -48,6 +48,7 @@ return {
 				"terraformls",
 				"ts_ls",
 				"vue_ls",
+				"elmls",
 			},
 		})
 		local vue_language_server_path = vim.fn.expand '$MASON/packages' ..
@@ -122,7 +123,20 @@ return {
 			filetypes = { 'typescript', 'javascript', 'javascriptreact', 'typescriptreact', 'vue' },
 		})
 		vim.lsp.config('vue_ls', opts)
+		vim.lsp.config('elmls', {
+			capabilities = capabilities,
+			on_attach = function(client, bufnr)
+				on_attach(client, bufnr)
+				vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+				vim.api.nvim_create_autocmd("BufWritePre", {
+					callback = function ()
+						vim.lsp.buf.format({ async = false })
+					end,
+				})
+			end,
+		})
 		vim.lsp.enable({
+			"elmls",
 			"cssls",
 			"eslint",
 			"html",