From eb7fdc29bb78e3a05fedc3d4a7368b21d7ad9884 Mon Sep 17 00:00:00 2001
From: gered <gered@blarg.ca>
Date: Wed, 11 Sep 2024 13:37:09 -0400
Subject: [PATCH] fix format_on_save configuration

it actually works properly for selectively enabling/disabling
format on save via conform based on filetype.

i apparently misunderstood how lua tables work and checking if values
exist in them or not.
---
 lua/plugins/conform.lua | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/lua/plugins/conform.lua b/lua/plugins/conform.lua
index cdb8ae4..4ee38f4 100644
--- a/lua/plugins/conform.lua
+++ b/lua/plugins/conform.lua
@@ -16,22 +16,18 @@ return {
     opts = {
       notify_on_error = false,
       format_on_save = function(bufnr)
-        -- Filetypes to apply formatting to on save. Remove from this list
-        -- to disable formatting on save for that filetype.
-        local filetypes = {
-          'lua',
-          'rust',
+        local autoformat_filetypes = {
+          lua = true,
+          rust = true,
         }
-        local lsp_format_opt
-        if filetypes[vim.bo[bufnr].filetype] then
-          lsp_format_opt = 'fallback'
+        if autoformat_filetypes[vim.bo[bufnr].filetype] then
+          return {
+            timeout_ms = 500,
+            lsp_format = 'fallback',
+          }
         else
-          lsp_format_opt = 'never'
+          return
         end
-        return {
-          timeout_ms = 500,
-          lsp_format = lsp_format_opt,
-        }
       end,
       formatters_by_ft = {
         lua = { 'stylua' },