options.lua

vim.opt.expandtab = true -- Convert tabs to spaces
vim.opt.shiftwidth = 4 -- Amount to indent with << and >>
vim.opt.tabstop = 4 -- How many spaces are shown per Tab
vim.opt.softtabstop = 4 -- How many spaces are applied when pressing Tab

vim.opt.smarttab = true
vim.opt.smartindent = true
vim.opt.autoindent = true -- Keep identation from previous line

-- Enable break indent
vim.opt.breakindent = true

-- Always show relative line numbers
vim.opt.number = true
vim.opt.relativenumber = true

-- Show line under cursor
vim.opt.cursorline = true

-- Store undos between sessions
vim.opt.undofile = true

-- Enable mouse mode, can be useful for resizing splits for example!
vim.opt.mouse = "a"

-- Use the system clipboard for yank/delete/change — paste with Ctrl+V elsewhere.
-- Note: this also routes deletes (d, c, x) through the clipboard.
vim.opt.clipboard = "unnamedplus"

-- Don't show the mode, since it's already in the status line
vim.opt.showmode = false

-- Case-insensitive searching UNLESS \C or one or more capital letters in the search term
vim.opt.ignorecase = true
vim.opt.smartcase = true

-- Keep signcolumn on by default
vim.opt.signcolumn = "yes"

-- Configure how new splits should be opened
vim.opt.splitright = true
vim.opt.splitbelow = true

-- Sets how neovim will display certain whitespace characters in the editor.
--  See `:help 'list'`
--  and `:help 'listchars'`
vim.opt.list = true
vim.opt.listchars = { tab = "» ", trail = "·", nbsp = "␣" }

-- Minimal number of screen lines to keep above and below the cursor.
vim.opt.scrolloff = 5

-- Timeout length for multi key hotkeys
vim.opt.timeoutlen = 500

-- How long the cursor must sit still before CursorHold fires (used by the
-- LSP diagnostic auto-popup). Default is 4000ms, way too slow.
vim.opt.updatetime = 250

-- optionally enable 24-bit colour
vim.opt.termguicolors = true

-- disable netrw for nvim-tree
vim.g.loaded_netrw = 1
vim.g.loaded_netrwPlugin = 1

-- Enable 24-bit colour
vim.opt.termguicolors = true

-- Keep multiple buffers and open multiple buffers
hidden = true

-- Always show tabline
vim.o.showtabline = 2

-- Project-local config: when nvim starts in a directory containing a
-- `.nvim.lua` (or `.nvimrc`/`.exrc`), source it. This is how a project layers
-- extra settings / LSP servers on top of this base config without launching
-- nvim a special way. Gated by `vim.secure`: the first time nvim sees a given
-- file it prompts to trust it (`:trust`) and remembers the hash, so an
-- untrusted file in someone else's repo can't run code silently.
-- See README.md → "Per-project configuration".
vim.o.exrc = true

-- Show a vertical line at column 80 for programming files
vim.api.nvim_create_autocmd("FileType", {
	pattern = {
		"c",
		"cpp",
		"python",
		"rust",
		"go",
		"java",
		"javascript",
		"typescript",
		"javascriptreact",
		"typescriptreact",
		"lua",
		"sh",
		"bash",
		"zsh",
		"fish",
		"ruby",
		"php",
		"perl",
		"haskell",
		"ocaml",
		"elixir",
		"erlang",
		"scala",
		"kotlin",
		"swift",
		"cs",
		"fsharp",
		"clojure",
		"nix",
		"vim",
		"sql",
		"r",
		"julia",
		"dart",
		"zig",
	},
	callback = function()
		vim.opt_local.colorcolumn = "80"
	end,
})