Neovim project-related lua config

.vimrc.lua

-- Local project-level config for Neovim
-- Based on https://gist.github.com/coffebar/6c09c75d5dafcf1d76cc1079e140939c

local augroup_name = "tmp_local_group"
local augroup = vim.api.nvim_create_augroup(augroup_name, { clear = true })
local unbind_table = {}
local function bind(op, outer_opts)
	outer_opts = outer_opts or { noremap = true }
	return function(lhs, rhs, opts)
		opts = vim.tbl_extend("force", outer_opts, opts or {})
		vim.keymap.set(op, lhs, rhs, opts)
		table.insert(unbind_table, {
			op = op,
			lhs = lhs,
		})
	end
end

vim.api.nvim_create_autocmd("DirChangedPre", {
	group = augroup,
	-- Undo all changes
	callback = function()
		vim.api.nvim_del_augroup_by_name(augroup_name)
		-- undo keymaps
		for _, b in ipairs(unbind_table) do
			vim.keymap.set(b.op, b.lhs, "<nop>", { noremap = true })
		end
	end,
})

-- Setup

local nnoremap = bind("n")
-- local vnoremap = bind("v")

-- Add maps
nnoremap("<leader>ex", ":w!<cr>")

global-config.lua

-- Add this to your nvim config

local augroup = vim.api.nvim_create_augroup("user_cmds", { clear = true })

vim.api.nvim_create_autocmd("DirChanged", {
	group = augroup,
	desc = "Source local nvim config",
	callback = function()
		local rc = ".vimrc.lua"
		if vim.fn.filereadable(rc) == 1 then
			local cwd = vim.fn.getcwd()
			local confirm = "Do you trust " .. cwd .. "/" .. rc .. "?"
			if vim.fn.confirm(confirm, "Yes\nNo") == 1 then
				vim.api.nvim_command("source .vimrc.lua")
			end
		end
	end,
})