module main import ( os v.pref ) fn main() { vexe := pref.vexe_path() vroot := os.dir(vexe) os.chdir(vroot) self_idx := os.args.index('self') args := os.args[1..self_idx] args_str := args.join(' ') options := if args.len > 0 { '($args_str)' } else { '' } println('V self compiling ${options}...') cmd := '$vexe -o v2 $args_str cmd/v' result := os.exec(cmd) or { panic(err) } if result.exit_code != 0 { mut err := 'Permission denied' if !result.output.contains('Permission denied') { err = '\n$result.output' } eprintln('cannot compile to ‘$vroot: $err') exit(1) } if result.output.len > 0 { println(result.output) } v_file := if os.user_os() == 'windows' { 'v.exe' } else { 'v' } v2_file := if os.user_os() == 'windows' { 'v2.exe' } else { 'v2' } bak_file := if os.user_os() == 'windows' { 'v_old.exe' } else { 'v_old' } if os.exists(bak_file) { os.rm(bak_file) } os.mv(v_file, bak_file) os.mv(v2_file, v_file) }