module main import ( os v.pref ) fn main() { println('V Self Compiling...') vexe := pref.vexe_path() vroot := os.dir(vexe) os.chdir(vroot) s2 := os.exec('$vexe -o v2 cmd/v') or { panic(err) } if s2.output.len > 0 { println(s2.output) } if s2.exit_code != 0 { exit(1) } 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) }