module main import os import v.pref import v.util import v.util.recompilation struct App { is_verbose bool is_prod bool vexe string vroot string } fn new_app() App { vexe := os.real_path(pref.vexe_path()) vroot := os.dir(vexe) return App{ is_verbose: '-v' in os.args is_prod: '-prod' in os.args vexe: vexe vroot: vroot } } fn main() { app := new_app() recompilation.must_be_enabled(app.vroot, 'Please install V from source, to use `v up` .') os.chdir(app.vroot) println('Updating V...') app.update_from_master() v_hash := util.githash(false) current_hash := util.githash(true) // println(v_hash) // println(current_hash) if v_hash == current_hash { app.show_current_v_version() return } $if windows { app.backup('cmd/tools/vup.exe') } app.recompile_v() os.execute_or_panic('"$app.vexe" cmd/tools/vup.v') app.show_current_v_version() } fn (app App) vprintln(s string) { if app.is_verbose { println(s) } } fn (app App) update_from_master() { app.vprintln('> updating from master ...') if !os.exists('.git') { // initialize as if it had been cloned app.git_command('init') app.git_command('remote add origin https://github.com/vlang/v') app.git_command('fetch') app.git_command('reset --hard origin/master') app.git_command('clean --quiet -xdf --exclude v.exe --exclude cmd/tools/vup.exe') } else { // pull latest app.git_command('pull https://github.com/vlang/v master') } } fn (app App) recompile_v() { // NB: app.vexe is more reliable than just v (which may be a symlink) opts := if app.is_prod { '-prod' } else { '' } vself := '"$app.vexe" $opts self' app.vprintln('> recompiling v itself with `$vself` ...') self_result := os.execute(vself) if self_result.exit_code == 0 { println(self_result.output.trim_space()) return } else { app.vprintln('`$vself` failed, running `make`...') app.vprintln(self_result.output.trim_space()) } app.make(vself) } fn (app App) make(vself string) { mut make := 'make' $if windows { make = 'make.bat' } make_result := os.execute_or_panic(make) app.vprintln(make_result.output) } fn (app App) show_current_v_version() { vout := os.execute('"$app.vexe" version') if vout.exit_code >= 0 { mut vversion := vout.output.trim_space() if vout.exit_code == 0 { latest_v_commit := vversion.split(' ').last().all_after('.') latest_v_commit_time := os.execute('git show -s --format=%ci $latest_v_commit') if latest_v_commit_time.exit_code == 0 { vversion += ', timestamp: ' + latest_v_commit_time.output.trim_space() } } println('Current V version:') println(vversion) } } fn (app App) backup(file string) { backup_file := '${file}_old.exe' if os.exists(backup_file) { os.rm(backup_file) or { eprintln('failed removing $backup_file: $err') } } os.mv(file, backup_file) or { eprintln('failed moving $file: $err') } } fn (app App) git_command(command string) { app.vprintln('git_command: git $command') git_result := os.execute('git $command') if git_result.exit_code < 0 { app.get_git() // Try it again with (maybe) git installed os.execute_or_panic('git $command') } if git_result.exit_code != 0 { eprintln(git_result.output) exit(1) } app.vprintln(git_result.output) } fn (app App) get_git() { $if windows { println('Downloading git 32 bit for Windows, please wait.') // We'll use 32 bit because maybe someone out there is using 32-bit windows res_download := os.execute('bitsadmin.exe /transfer "vgit" https://github.com/git-for-windows/git/releases/download/v2.30.0.windows.2/Git-2.30.0.2-32-bit.exe "$os.getwd()/git32.exe"') if res_download.exit_code != 0 { eprintln('Unable to install git automatically: please install git manually') panic(res_download.output) } res_git32 := os.execute('$os.getwd()/git32.exe') if res_git32.exit_code != 0 { eprintln('Unable to install git automatically: please install git manually') panic(res_git32.output) } } $else { // Probably some kind of *nix, usually need to get using a package manager. eprintln("error: Install `git` using your system's package manager") } }