module main import os import os.cmdline import v.pref fn main() { vexe := pref.vexe_path() vroot := os.dir(vexe) os.chdir(vroot) os.setenv('VCOLORS', 'always', true) self_idx := os.args.index('self') args := os.args[1..self_idx] jargs := args.join(' ') obinary := cmdline.option(args, '-o', '') sargs := if obinary != '' { jargs } else { '$jargs -o v2 ' } cmd := '$vexe $sargs cmd/v' options := if args.len > 0 { '($sargs)' } else { '' } println('V self compiling ${options}...') compile(vroot, cmd) if obinary != '' { // When -o was given, there is no need to backup/rename the original. // The user just wants an independent copy of v, and so we are done. return } backup_old_version_and_rename_newer() } fn compile(vroot string, cmd string) { result := os.exec(cmd) or { panic(err) } if result.exit_code != 0 { eprintln('cannot compile to `$vroot`: \n$result.output') exit(1) } if result.output.len > 0 { println(result.output.trim_space()) } } fn backup_old_version_and_rename_newer() { 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) }