Trying to debug ts / sw identing problems with old codebase

[smithwinston]

I have an old codebase (I think old FreeBSD style) that uses hard 8-stop tabs for tabbing and 3 spaces for indents (don't ask, I have no choice here!). For function bodies, column 0 contains a TAB and any subsequent nesting from control structs is 3 spaces, e.g.:

	if ((env = getenv("TERM")) != 0) {
	   if (((colors = strchr(env, '-')) != 0) &&
	       (sscanf(colors, "-%dcolor", &n) == 1)) {
	      // ...
	   }
	}

In Emacs, this modeline works just fine tab-width: 8; c-basic-offset: 3, and in plain vim (or nvim --clean), then the following vim modeline also works just fine vim:ts=8:sw=3:noet.

However, with Lazy (and I'm just using a configuration based on josean's lazyvim config from his yt videos) the indenting seems all wrong, it seems to want to replace any tabs with sw spaces (in this case 3). I checked the settings for ts, sw and noet with :verbose set ts? etc. and it says they are being set by the modeline. I've also played around disabling smartindent and autoindent but it doesn't make a difference (sts is also 0).

I have a suspicion that one of the packages in the lazyvim config is overriding the settings, but I can't figure out which package it is. Any ideas how to debug which, or better yet anyone know what might be causing this?

NOTE: This isn't a formatter problem, this happens as you edit not format-on-save (I have that disabled).

These are the 55 packages lazy is showing as loaded, mostly transitive dependencies (below).

Thanks for any insights!

    ● barbecue.nvim 
    ● bufferline.nvim 
    ● cmp-buffer 
    ● cmp-cmdline 
    ● cmp-nvim-lsp 
    ● cmp-nvim-lsp-signature-help 
    ● cmp-path 
    ● cmp_luasnip 
    ● dashboard-nvim 
    ● fidget.nvim 
    ● flash.nvim 
    ● friendly-snippets 
    ● gitsigns.nvim 
    ● inc-rename.nvim 
    ● indent-blankline.nvim 
    ● lazy.nvim 
    ● LazyVim 
    ● lualine.nvim 
    ● LuaSnip 
    ● mason-lspconfig.nvim 
    ● mason-nvim-dap.nvim 
    ● mason.nvim 
    ● mini.ai 
    ● mini.icons 
    ● mini.pairs
    ● neoconf.nvim 
    ● neodev.nvim 
    ● noice.nvim 
    ● nui.nvim 
    ● nvim-cmp 
    ● nvim-dap 
    ● nvim-dap-ui 
    ● nvim-dap-virtual-text 
    ● nvim-lint 
    ● nvim-lspconfig 
    ● nvim-navic 
    ● nvim-nio 
    ● nvim-notify 
    ● nvim-snippets 
    ● nvim-surround 
    ● nvim-treesitter 
    ● nvim-treesitter-textobjects 
    ● nvim-ts-autotag 
    ● nvim-web-devicons 
    ● persistence.nvim 
    ● plenary.nvim 
    ● rust-tools.nvim 
    ● rust.vim 
    ● telescope-fzf-native.nvim 
    ● telescope.nvim 
    ● todo-comments.nvim 
    ● tokyonight.nvim 
    ● trouble.nvim 
    ● ts-comments.nvim 
    ● which-key.nvim 

[dpetka2001]

Try to define explicitly the options you want in ~/.config/nvim/after/ftplugin/c.lua (assuming that it's a C filetype, otherwise change the name to the corresponding filetype you want)

vim.opt_local.expandtab = false
vim.opt_local.shiftwidth = 3
vim.opt_local.tabstop = 8

[smithwinston]

I don't have anything specific in ~/.config/nvim/after/ftplugin/c.lua for this -- for all my other C coding I normally use sane settings (e.g. ts=4:sw=4:et) but this particular code base is different. I do see the modeline settings taking hold via :verbose set ...? so I know that nvim has the right settings but there's definitely something [that lazy is loading?] that's overriding the indent behavior -- plain vim / nvim --clean work just fine with the modeline specified in the old C files.

[smithwinston]

I realize that I probably should have posted this in the LazyVim/LazyVim discussions rather than here as it seems like a more appropriate place (and somewhat busier), so I'm going to repost it there and close this one.