Upgrade lsp to Nvim 0.7 api and add sqlfluff

.config/nvim/lua/plugins/lsp-cmp.lua

@@ -5,15 +5,22 @@ capabilities = require("cmp_nvim_lsp").update_capabilities(capabilities)
 local lspconfig = require("lspconfig")
 
 -- Enable some language servers with the additional completion capabilities offered by nvim-cmp
+local formatting_augroup = vim.api.nvim_create_augroup("LspFormatting", {})
 
-local function format_on_save(client)
-	if client.resolved_capabilities.document_formatting then
-		vim.cmd([[
-            augroup LspFormatting
-                autocmd! * <buffer>
-                autocmd BufWritePre <buffer> lua vim.lsp.buf.formatting_sync(nil, 60000)
-            augroup END
-            ]])
+local function format_on_save(client, bufnr)
+	if client.supports_method("textDocument/formatting") then
+		vim.api.nvim_clear_autocmds({
+			group = formatting_augroup,
+			buffer = bufnr,
+		})
+		vim.api.nvim_create_autocmd("BufWritePre", {
+			group = formatting_augroup,
+			buffer = bufnr,
+			callback = function()
+				-- NOTE: On 0.8, use vim.lsp.buf.format({ bufnr = bufnr }) instead
+				vim.lsp.buf.formatting_sync(nil, 60000)
+			end,
+		})
 	end
 end
 
@@ -41,7 +48,7 @@ lspconfig["pylsp"].setup({
 
 local function on_attach_with_formatting(client, bufnr)
 	lsp_signature.on_attach(lsp_signature_config)
-	format_on_save(client)
+	format_on_save(client, bufnr)
 end
 
 lspconfig["julials"].setup({
@@ -68,6 +75,14 @@ null_ls.setup({
 		null_ls.builtins.formatting.shellharden,
 		null_ls.builtins.formatting.shfmt,
 		null_ls.builtins.formatting.taplo,
+		null_ls.builtins.formatting.sqlfluff.with({
+			extra_args = {
+				"--dialect",
+				"sqlite",
+				"--exclude-rules",
+				"L004,L013,L014,L016,L020,L021,L029,L031,L032,L033,L042,L059",
+			},
+		}),
 	},
 	on_attach = format_on_save,
 })