nvim/lua/config/autocmd.lua

-- vim.api.nvim_set_hl(0, 'NormalFloat', { bg = '#282828' })
-- vim.api.nvim_set_hl(0, 'FloatBorder', { bg = 'NONE' }) vim.api.nvim_set_hl(0, 'Pmenu', { bg = 'NONE' })
-- vim.api.nvim_set_hl(0, 'StatusLine', { bg = 'NONE' })
local function augroup(name)
	return vim.api.nvim_create_augroup('neo_' .. name, { clear = true })
end

-- Use 'q' to quit from common plugins
vim.api.nvim_create_autocmd({ 'FileType' }, {
	pattern = { 'qf', 'help', 'man', 'lspinfo', 'spectre_panel', 'lir' },
	callback = function()
		vim.cmd [[
      nnoremap <silent> <buffer> q :close<CR> 
      set nobuflisted 
    ]]
	end,
})

-- use 2 spaces for cpp
vim.api.nvim_create_autocmd({ 'FileType' }, {
	pattern = { 'cpp', 'cc', 'hpp', 'hh', 'md', 'markdown', 'java' },
	callback = function()
		vim.opt.ts = 4
		vim.opt.sw = 4
		vim.opt.expandtab = true
	end,
})

-- Fixes Autocomment
vim.api.nvim_create_autocmd({ 'BufWinEnter' }, {
	callback = function()
		vim.cmd 'set formatoptions-=cro'
	end,
})

-- Highlight Yanked Text
vim.api.nvim_create_autocmd({ 'TextYankPost' }, {
	callback = function()
		vim.highlight.on_yank { higroup = 'Visual', timeout = 200 }
	end,
})

vim.api.nvim_create_augroup('diagnostics', { clear = true })

vim.api.nvim_create_autocmd({ 'DiagnosticChanged' }, {
	group = 'diagnostics',
	callback = function()
		vim.diagnostic.setloclist { open = false }
	end,
})

-- resize splits if window got resized
vim.api.nvim_create_autocmd({ 'VimResized' }, {
	group = augroup 'resize_splits',
	callback = function()
		vim.cmd 'tabdo wincmd ='
	end,
})

-- wrap and check for spell in text filetypes
vim.api.nvim_create_autocmd('FileType', {
	group = augroup 'wrap_spell',
	pattern = { 'gitcommit', 'markdown' },
	callback = function()
		vim.opt_local.wrap = true
		vim.opt_local.spell = true
	end,
})
function ToggleTroubleAuto()
	local ok, trouble = pcall(require, 'trouble')
	if ok then
		vim.defer_fn(function()
			vim.cmd 'cclose'
			trouble.open 'quickfix'
		end, 0)
	end
end

-- vim.cmd "autocmd VimLeave * call os.execute("mkdir /tmp/nvim"), writefile([getcwd()], expand('/tmp/nvim/cwd'))"
vim.cmd [[autocmd BufWinEnter quickfix silent :lua ToggleTroubleAuto()]]
vim.cmd [[
    augroup change_cursor
        au!
        au ExitPre * :set guicursor=a:hor90
    augroup END
]]