nvim-config/lua/autocmds.lua

local augroup = vim.api.nvim_create_augroup
local autocmd = vim.api.nvim_create_autocmd

-- Highlight on yank
augroup('YankHighlight', { clear = true })
autocmd('TextYankPost', {
  group = 'YankHighlight',
  callback = function()
    vim.highlight.on_yank({ higroup = 'IncSearch', timeout = '1000' })
  end
})

-- Remove whitespace on save
autocmd('BufWritePre', {
  pattern = '*',
  command = ":%s/\\s\\+$//e"
})

-- disable ftplugin formatoptions
autocmd('BufEnter', {
  pattern = '*',
  command = 'setlocal formatoptions-=ro'
})

-- Settings for filetypes:
-- Help window
autocmd('FileType', {
  pattern = 'help',
  command = 'nnoremap <buffer> q :helpclose<CR>'
})

-- Disable line length marker
augroup('setLineLength', { clear = true })
autocmd('Filetype', {
  group = 'setLineLength',
  pattern = { 'text', 'markdown', 'html', 'xhtml', 'javascript', 'typescript' },
  command = 'setlocal cc=0'
})

-- Set indentation to 4 spaces
augroup('setIndent', { clear = true })
autocmd('Filetype', {
  group = 'setIndent',
  pattern = { 'python', 'makefile' },
  command = 'setlocal shiftwidth=4 tabstop=4 expandtab'
})