Override default filetype/indent settings

plugin/holtrop.lua

@@ -9,16 +9,29 @@ vim.cmd([[runtime plugin/fzf-lua.lua]])
 -- Show titlestring in GUI window title
 vim.opt.title = true
 vim.opt.titlestring = "%t%m%r%{exists('g:project_name') ? ' : '.g:project_name : ''}"
-
-vim.opt.expandtab = true
-vim.opt.sw = 4
-vim.opt.sts = 4
 vim.opt.modeline = false
 vim.opt.colorcolumn = "80"
 vim.opt.cursorcolumn = true
 vim.opt.cursorline = true
 vim.opt.so = 8
-vim.opt.cinoptions = ":0,g0"
+
+local holtrop_bufread_group = vim.api.nvim_create_augroup("holtrop_bufread_group", { clear = true })
+
+vim.api.nvim_create_autocmd({ "BufReadPost", "BufNewFile" }, {
+    group = holtrop_bufread_group,
+    pattern = "*",
+    callback = function()
+        vim.schedule(function()
+            if vim.bo.filetype ~= "make" then
+                vim.opt_local.expandtab = true
+            end
+            vim.opt_local.ts = 4
+            vim.opt_local.sw = 4
+            vim.opt_local.sts = 4
+            vim.opt_local.cinoptions = ":0,g0"
+        end)
+    end,
+})
 
 -- Shortcuts
 vim.cmd([[map <C-s> :FzfLua combine pickers=buffers,files<CR>]])