nvim: add commands FormatDisable and FormatEnable

nvim/.config/nvim/lua/plugins/odin.lua

@@ -1,4 +1,23 @@
 require 'lspconfig'.ols.setup {}
+
+vim.api.nvim_create_user_command("FormatDisable", function(args)
+  if args.bang then
+    -- FormatDisable! will disable formatting just for this buffer
+    vim.b.disable_autoformat = true
+  else
+    vim.g.disable_autoformat = true
+  end
+end, {
+  desc = "Disable autoformat-on-save",
+  bang = true,
+})
+vim.api.nvim_create_user_command("FormatEnable", function()
+  vim.b.disable_autoformat = false
+  vim.g.disable_autoformat = false
+end, {
+  desc = "Re-enable autoformat-on-save",
+})
+
 return {
   {
     "stevearc/conform.nvim",
@@ -18,10 +37,13 @@ return {
       formatters_by_ft = {
         odin = { "odinfmt" },
       },
-      format_on_save = {
-        lsp_format = "fallback",
-        timeout_ms = 500,
-      }
+      format_on_save = function(bufnr)
+        -- Disable with a global or buffer-local variable
+        if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
+          return
+        end
+        return { timeout_ms = 500, lsp_format = "fallback" }
+      end,
     },
   }
 }