380 lines
12 KiB
V
380 lines
12 KiB
V
module main
|
|
|
|
// This tool regenerates V's bootstrap .c files
|
|
// every time the V master branch is updated.
|
|
// if run with the --serve flag it will run in webhook
|
|
// server mode awaiting a request to http://host:port/genhook
|
|
// available command line flags:
|
|
// --work-dir gen_vc's working directory
|
|
// --purge force purge the local repositories
|
|
// --serve run in webhook server mode
|
|
// --port port for http server to listen on
|
|
// --log-to either 'file' or 'terminal'
|
|
// --log-file path to log file used when --log-to is 'file'
|
|
// --dry-run dont push anything to remote repo
|
|
// --force force update even if already up to date
|
|
import os
|
|
import log
|
|
import flag
|
|
import time
|
|
import vweb
|
|
import net.urllib
|
|
|
|
// git credentials
|
|
const (
|
|
git_username = os.getenv('GITUSER')
|
|
git_password = os.getenv('GITPASS')
|
|
)
|
|
|
|
// repository
|
|
const (
|
|
// git repo
|
|
git_repo_v = 'github.com/vlang/v'
|
|
git_repo_vc = 'github.com/vlang/vc'
|
|
// local repo directories
|
|
git_repo_dir_v = 'v'
|
|
git_repo_dir_vc = 'vc'
|
|
)
|
|
|
|
// gen_vc
|
|
const (
|
|
// name
|
|
app_name = 'gen_vc'
|
|
// version
|
|
app_version = '0.1.2'
|
|
// description
|
|
app_description = "This tool regenerates V\'s bootstrap .c files every time the V master branch is updated."
|
|
// assume something went wrong if file size less than this
|
|
too_short_file_limit = 5000
|
|
// create a .c file for these os's
|
|
vc_build_oses = [
|
|
'nix', // all nix based os
|
|
'windows',
|
|
]
|
|
)
|
|
|
|
// default options (overridden by flags)
|
|
const (
|
|
// gen_vc working directory
|
|
work_dir = '/tmp/gen_vc'
|
|
// dont push anything to remote repo
|
|
dry_run = false
|
|
// server port
|
|
server_port = 7171
|
|
// log file
|
|
log_file = '$work_dir/log.txt'
|
|
// log_to is either 'file' or 'terminal'
|
|
log_to = 'terminal'
|
|
)
|
|
|
|
// errors
|
|
const (
|
|
err_msg_build = 'error building'
|
|
err_msg_make = 'make failed'
|
|
err_msg_gen_c = 'failed to generate .c file'
|
|
err_msg_cmd_x = 'error running cmd'
|
|
)
|
|
|
|
struct GenVC {
|
|
// logger
|
|
// flag options
|
|
options FlagOptions
|
|
mut:
|
|
logger &log.Log
|
|
// true if error was experienced running generate
|
|
gen_error bool
|
|
}
|
|
|
|
// webhook server
|
|
struct WebhookServer {
|
|
pub mut:
|
|
vweb vweb.Context
|
|
gen_vc &GenVC
|
|
}
|
|
|
|
// storage for flag options
|
|
struct FlagOptions {
|
|
work_dir string
|
|
purge bool
|
|
serve bool
|
|
port int
|
|
log_to string
|
|
log_file string
|
|
dry_run bool
|
|
force bool
|
|
}
|
|
|
|
fn main() {
|
|
mut fp := flag.new_flag_parser(os.args.clone())
|
|
fp.application(app_name)
|
|
fp.version(app_version)
|
|
fp.description(app_description)
|
|
fp.skip_executable()
|
|
show_help := fp.bool('help', 0, false, 'Show this help screen\n')
|
|
flag_options := parse_flags(mut fp)
|
|
if show_help {
|
|
println(fp.usage())
|
|
exit(0)
|
|
}
|
|
fp.finalize() or {
|
|
eprintln(err)
|
|
println(fp.usage())
|
|
return
|
|
}
|
|
// webhook server mode
|
|
if flag_options.serve {
|
|
vweb.run<WebhookServer>(flag_options.port)
|
|
} else {
|
|
// cmd mode
|
|
mut gen_vc := new_gen_vc(flag_options)
|
|
gen_vc.init()
|
|
gen_vc.generate()
|
|
}
|
|
}
|
|
|
|
// new GenVC
|
|
fn new_gen_vc(flag_options FlagOptions) &GenVC {
|
|
mut logger := &log.Log{}
|
|
logger.set_level(.debug)
|
|
if flag_options.log_to == 'file' {
|
|
logger.set_full_logpath(flag_options.log_file)
|
|
}
|
|
return &GenVC{
|
|
options: flag_options
|
|
logger: logger
|
|
}
|
|
}
|
|
|
|
// WebhookServer init
|
|
pub fn (mut ws WebhookServer) init_once() {
|
|
mut fp := flag.new_flag_parser(os.args.clone())
|
|
flag_options := parse_flags(mut fp)
|
|
ws.gen_vc = new_gen_vc(flag_options)
|
|
ws.gen_vc.init()
|
|
// ws.gen_vc = new_gen_vc(flag_options)
|
|
}
|
|
|
|
pub fn (mut ws WebhookServer) init() {
|
|
// ws.init_once()
|
|
}
|
|
|
|
pub fn (mut ws WebhookServer) index() {
|
|
eprintln('WebhookServer.index() called')
|
|
}
|
|
|
|
// gen webhook
|
|
pub fn (mut ws WebhookServer) genhook() {
|
|
// request data
|
|
// println(ws.vweb.req.data)
|
|
// TODO: parse request. json or urlencoded
|
|
// json.decode or net.urllib.parse
|
|
ws.gen_vc.generate()
|
|
// error in generate
|
|
if ws.gen_vc.gen_error {
|
|
ws.vweb.json('{status: "failed"}')
|
|
return
|
|
}
|
|
ws.vweb.json('{status: "ok"}')
|
|
}
|
|
|
|
pub fn (ws &WebhookServer) reset() {
|
|
}
|
|
|
|
// parse flags to FlagOptions struct
|
|
fn parse_flags(mut fp flag.FlagParser) FlagOptions {
|
|
return FlagOptions{
|
|
serve: fp.bool('serve', 0, false, 'run in webhook server mode')
|
|
work_dir: fp.string('work-dir', 0, work_dir, 'gen_vc working directory')
|
|
purge: fp.bool('purge', 0, false, 'force purge the local repositories')
|
|
port: fp.int('port', 0, server_port, 'port for web server to listen on')
|
|
log_to: fp.string('log-to', 0, log_to, "log to is \'file\' or \'terminal\'")
|
|
log_file: fp.string('log-file', 0, log_file, "log file to use when log-to is \'file\'")
|
|
dry_run: fp.bool('dry-run', 0, dry_run, 'when specified dont push anything to remote repo')
|
|
force: fp.bool('force', 0, false, 'force update even if already up to date')
|
|
}
|
|
}
|
|
|
|
// init
|
|
fn (mut gen_vc GenVC) init() {
|
|
// purge repos if flag is passed
|
|
if gen_vc.options.purge {
|
|
gen_vc.purge_repos()
|
|
}
|
|
}
|
|
|
|
// regenerate
|
|
fn (mut gen_vc GenVC) generate() {
|
|
// set errors to false
|
|
gen_vc.gen_error = false
|
|
// check if gen_vc dir exists
|
|
if !os.is_dir(gen_vc.options.work_dir) {
|
|
// try create
|
|
os.mkdir(gen_vc.options.work_dir) or {
|
|
panic(err)
|
|
}
|
|
// still dosen't exist... we have a problem
|
|
if !os.is_dir(gen_vc.options.work_dir) {
|
|
gen_vc.logger.error('error creating directory: $gen_vc.options.work_dir')
|
|
gen_vc.gen_error = true
|
|
return
|
|
}
|
|
}
|
|
// cd to gen_vc dir
|
|
os.chdir(gen_vc.options.work_dir)
|
|
// if we are not running with the --serve flag (webhook server)
|
|
// rather than deleting and re-downloading the repo each time
|
|
// first check to see if the local v repo is behind master
|
|
// if it isn't behind theres no point continuing further
|
|
if !gen_vc.options.serve && os.is_dir(git_repo_dir_v) {
|
|
gen_vc.cmd_exec('git -C $git_repo_dir_v checkout master')
|
|
// fetch the remote repo just in case there are newer commits there
|
|
gen_vc.cmd_exec('git -C $git_repo_dir_v fetch')
|
|
git_status := gen_vc.cmd_exec('git -C $git_repo_dir_v status')
|
|
if !git_status.contains('behind') && !gen_vc.options.force {
|
|
gen_vc.logger.warn('v repository is already up to date.')
|
|
return
|
|
}
|
|
}
|
|
// delete repos
|
|
gen_vc.purge_repos()
|
|
// clone repos
|
|
gen_vc.cmd_exec('git clone --depth 1 https://$git_repo_v $git_repo_dir_v')
|
|
gen_vc.cmd_exec('git clone --depth 1 https://$git_repo_vc $git_repo_dir_vc')
|
|
// get output of git log -1 (last commit)
|
|
git_log_v := gen_vc.cmd_exec('git -C $git_repo_dir_v log -1 --format="commit %H%nDate: %ci%nDate Unix: %ct%nSubject: %s"')
|
|
git_log_vc := gen_vc.cmd_exec('git -C $git_repo_dir_vc log -1 --format="Commit %H%nDate: %ci%nDate Unix: %ct%nSubject: %s"')
|
|
// date of last commit in each repo
|
|
ts_v := git_log_v.find_between('Date:', '\n').trim_space()
|
|
ts_vc := git_log_vc.find_between('Date:', '\n').trim_space()
|
|
// parse time as string to time.Time
|
|
last_commit_time_v := time.parse(ts_v) or {
|
|
panic(err)
|
|
}
|
|
last_commit_time_vc := time.parse(ts_vc) or {
|
|
panic(err)
|
|
}
|
|
// git dates are in users local timezone and v time.parse does not parse
|
|
// timezones at the moment, so for now get unix timestamp from output also
|
|
t_unix_v := git_log_v.find_between('Date Unix:', '\n').trim_space().int()
|
|
t_unix_vc := git_log_vc.find_between('Date Unix:', '\n').trim_space().int()
|
|
// last commit hash in v repo
|
|
last_commit_hash_v := git_log_v.find_between('commit', '\n').trim_space()
|
|
last_commit_hash_v_short := last_commit_hash_v[..7]
|
|
// subject
|
|
last_commit_subject := git_log_v.find_between('Subject:', '\n').trim_space().replace('"',
|
|
'\\"')
|
|
// log some info
|
|
gen_vc.logger.debug('last commit time ($git_repo_v): ' + last_commit_time_v.format_ss())
|
|
gen_vc.logger.debug('last commit time ($git_repo_vc): ' + last_commit_time_vc.format_ss())
|
|
gen_vc.logger.debug('last commit hash ($git_repo_v): $last_commit_hash_v')
|
|
gen_vc.logger.debug('last commit subject ($git_repo_v): $last_commit_subject')
|
|
// if vc repo already has a newer commit than the v repo, assume it's up to date
|
|
if t_unix_vc >= t_unix_v && !gen_vc.options.force {
|
|
gen_vc.logger.warn('vc repository is already up to date.')
|
|
return
|
|
}
|
|
// try build v for current os (linux in this case)
|
|
gen_vc.cmd_exec('make -C $git_repo_dir_v')
|
|
v_exec := '$git_repo_dir_v/v'
|
|
// check if make was successful
|
|
gen_vc.assert_file_exists_and_is_not_too_short(v_exec, err_msg_make)
|
|
// build v.c for each os
|
|
for os_name in vc_build_oses {
|
|
vc_suffix := if os_name == 'nix' { '' } else { '_${os_name[..3]}' }
|
|
v_flags := if os_name == 'nix' { '-os cross' } else { '-os $os_name' }
|
|
c_file := 'v${vc_suffix}.c'
|
|
// try generate .c file
|
|
gen_vc.cmd_exec('$v_exec $v_flags -o $c_file $git_repo_dir_v/cmd/v')
|
|
// check if the c file seems ok
|
|
gen_vc.assert_file_exists_and_is_not_too_short(c_file, err_msg_gen_c)
|
|
// embed the latest v commit hash into the c file
|
|
gen_vc.cmd_exec('sed -i \'1s/^/#define V_COMMIT_HASH "$last_commit_hash_v_short"\\n/\' $c_file')
|
|
// move to vc repo
|
|
gen_vc.cmd_exec('mv $c_file $git_repo_dir_vc/$c_file')
|
|
// add new .c file to local vc repo
|
|
gen_vc.cmd_exec('git -C $git_repo_dir_vc add $c_file')
|
|
}
|
|
// check if the vc repo actually changed
|
|
git_status := gen_vc.cmd_exec('git -C $git_repo_dir_vc status')
|
|
if git_status.contains('nothing to commit') {
|
|
gen_vc.logger.error('no changes to vc repo: something went wrong.')
|
|
gen_vc.gen_error = true
|
|
}
|
|
// commit changes to local vc repo
|
|
gen_vc.cmd_exec_safe('git -C $git_repo_dir_vc commit -m "[v:master] $last_commit_hash_v_short - $last_commit_subject"')
|
|
// push changes to remote vc repo
|
|
gen_vc.cmd_exec_safe('git -C $git_repo_dir_vc push https://${urllib.query_escape(git_username)}:${urllib.query_escape(git_password)}@$git_repo_vc master')
|
|
}
|
|
|
|
// only execute when dry_run option is false, otherwise just log
|
|
fn (mut gen_vc GenVC) cmd_exec_safe(cmd string) string {
|
|
return gen_vc.command_execute(cmd, gen_vc.options.dry_run)
|
|
}
|
|
|
|
// always execute command
|
|
fn (mut gen_vc GenVC) cmd_exec(cmd string) string {
|
|
return gen_vc.command_execute(cmd, false)
|
|
}
|
|
|
|
// execute command
|
|
fn (mut gen_vc GenVC) command_execute(cmd string, dry bool) string {
|
|
// if dry is true then dont execute, just log
|
|
if dry {
|
|
return gen_vc.command_execute_dry(cmd)
|
|
}
|
|
gen_vc.logger.info('cmd: $cmd')
|
|
r := os.exec(cmd) or {
|
|
gen_vc.logger.error('$err_msg_cmd_x: "$cmd" could not start.')
|
|
gen_vc.logger.error(err)
|
|
// something went wrong, better start fresh next time
|
|
gen_vc.purge_repos()
|
|
gen_vc.gen_error = true
|
|
return ''
|
|
}
|
|
if r.exit_code != 0 {
|
|
gen_vc.logger.error('$err_msg_cmd_x: "$cmd" failed.')
|
|
gen_vc.logger.error(r.output)
|
|
// something went wrong, better start fresh next time
|
|
gen_vc.purge_repos()
|
|
gen_vc.gen_error = true
|
|
return ''
|
|
}
|
|
return r.output
|
|
}
|
|
|
|
// just log cmd, dont execute
|
|
fn (mut gen_vc GenVC) command_execute_dry(cmd string) string {
|
|
gen_vc.logger.info('cmd (dry): "$cmd"')
|
|
return ''
|
|
}
|
|
|
|
// delete repo directories
|
|
fn (mut gen_vc GenVC) purge_repos() {
|
|
// delete old repos (better to be fully explicit here, since these are destructive operations)
|
|
mut repo_dir := '$gen_vc.options.work_dir/$git_repo_dir_v'
|
|
if os.is_dir(repo_dir) {
|
|
gen_vc.logger.info('purging local repo: "$repo_dir"')
|
|
gen_vc.cmd_exec('rm -rf $repo_dir')
|
|
}
|
|
repo_dir = '$gen_vc.options.work_dir/$git_repo_dir_vc'
|
|
if os.is_dir(repo_dir) {
|
|
gen_vc.logger.info('purging local repo: "$repo_dir"')
|
|
gen_vc.cmd_exec('rm -rf $repo_dir')
|
|
}
|
|
}
|
|
|
|
// check if file size is too short
|
|
fn (mut gen_vc GenVC) assert_file_exists_and_is_not_too_short(f, emsg string) {
|
|
if !os.exists(f) {
|
|
gen_vc.logger.error('$err_msg_build: $emsg .')
|
|
gen_vc.gen_error = true
|
|
return
|
|
}
|
|
fsize := os.file_size(f)
|
|
if fsize < too_short_file_limit {
|
|
gen_vc.logger.error('$err_msg_build: $f exists, but is too short: only $fsize bytes.')
|
|
gen_vc.gen_error = true
|
|
return
|
|
}
|
|
}
|