FollieHiyuki-dotfiles/home/.config/nvim/lua/autocmd.lua

local definitions = {
    -- ':h hex-editing'
    binary = {
        {'BufReadPre'  , '*.bin,*.exe', 'let &bin=1'},
        {'BufReadPost' , '*.bin,*.exe', 'if &bin | %!xxd'},
        {'BufReadPost' , '*.bin,*.exe', 'set ft=xxd | endif'},
        {'BufWritePre' , '*.bin,*.exe', 'if &bin | %!xxd -r'},
        {'BufWritePre' , '*.bin,*.exe', 'endif'},
        {'BufWritePost', '*.bin,*.exe', 'if &bin | %!xxd'},
        {'BufWritePost', '*.bin,*.exe', 'set nomod | endif'}
    },

    -- Auto-hide UI elements in specific buffers
    buf = {
        {'BufEnter', 'term://*', 'setlocal norelativenumber nonumber'},
        -- {'BufEnter,BufWinEnter,WinEnter,CmdwinEnter', '*', [[if bufname('%') == 'NvimTree' | set laststatus=0 | else | set laststatus=2 | endif]]}
    },

    wins = {
        -- Equalize window dimensions when resizing vim window
        {'VimResized', '*', 'tabdo wincmd ='},
        -- Force writing shada on leaving nvim
        {'VimLeave', '*', [[if has('nvim') | wshada! | else | wviminfo! | endif]]},
        -- Check if file changed when its window is focus, more eager than 'autoread'
        {'FocusGained', '* checktime'}
    },

    ft = {
        {'BufNewFile,BufRead', '*.md,*.mkd', 'setfiletype markdown'},
        {'BufNewFile,BufRead', '*.toml', 'setfiletype toml'},
        {'BufNewFile,BufRead', '*.rasi', 'setfiletype css'},
        {'BufNewFile,BufRead', 'vifmrc,*.vifm', 'setfiletype vim'},
        {'BufNewFile,BufRead', '*.log,*_log,*.LO,G*_LOG', 'setfiletype log'}
    },

    yank = {
        {'TextYankPost', [[* silent! lua vim.highlight.on_yank({higroup='IncSearch', timeout=300})]]}
    }
}

for group_name, definition in pairs(definitions) do
    vim.api.nvim_command('augroup ' .. group_name)
    vim.api.nvim_command('autocmd!')
    for _, def in ipairs(definition) do
        local command = table.concat(vim.tbl_flatten{'autocmd', def}, ' ')
        vim.api.nvim_command(command)
    end
    vim.api.nvim_command('augroup END')
end