2020-07-08 14:29:55 +03:00
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module main
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2021-04-02 01:57:09 +03:00
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import os
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import log
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import flag
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import time
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import vweb
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import net.urllib
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2019-08-31 17:44:01 +03:00
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// This tool regenerates V's bootstrap .c files
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// every time the V master branch is updated.
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// if run with the --serve flag it will run in webhook
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// server mode awaiting a request to http://host:port/genhook
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// available command line flags:
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// --work-dir gen_vc's working directory
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2019-08-31 19:00:40 +03:00
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// --purge force purge the local repositories
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2019-08-31 17:44:01 +03:00
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// --serve run in webhook server mode
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// --port port for http server to listen on
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// --log-to either 'file' or 'terminal'
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// --log-file path to log file used when --log-to is 'file'
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// --dry-run dont push anything to remote repo
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2020-03-16 16:20:40 +03:00
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// --force force update even if already up to date
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2019-08-31 17:44:01 +03:00
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// git credentials
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2020-10-15 00:39:09 +03:00
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const (
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2019-08-31 17:44:01 +03:00
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git_username = os.getenv('GITUSER')
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git_password = os.getenv('GITPASS')
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)
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// repository
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2020-10-15 00:39:09 +03:00
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const (
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2019-08-31 17:44:01 +03:00
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// git repo
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2020-10-15 00:39:09 +03:00
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git_repo_v = 'github.com/vlang/v'
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git_repo_vc = 'github.com/vlang/vc'
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2019-08-31 17:44:01 +03:00
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// local repo directories
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git_repo_dir_v = 'v'
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git_repo_dir_vc = 'vc'
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)
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// gen_vc
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2020-10-15 00:39:09 +03:00
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const (
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2019-08-31 17:44:01 +03:00
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// name
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2020-10-15 00:39:09 +03:00
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app_name = 'gen_vc'
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2019-08-31 17:44:01 +03:00
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// version
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2020-10-15 00:39:09 +03:00
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app_version = '0.1.2'
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2019-08-31 17:44:01 +03:00
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// description
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2021-03-08 21:52:13 +03:00
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app_description = "This tool regenerates V's bootstrap .c files every time the V master branch is updated."
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2019-08-31 17:44:01 +03:00
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// assume something went wrong if file size less than this
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too_short_file_limit = 5000
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// create a .c file for these os's
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2020-10-15 00:39:09 +03:00
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vc_build_oses = [
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2020-12-31 19:22:47 +03:00
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'nix',
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2021-03-08 21:52:13 +03:00
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// all nix based os
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2020-10-15 00:39:09 +03:00
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'windows',
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2019-08-31 17:44:01 +03:00
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]
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)
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// default options (overridden by flags)
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2020-10-15 00:39:09 +03:00
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const (
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2019-08-31 17:44:01 +03:00
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// gen_vc working directory
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2020-10-15 00:39:09 +03:00
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work_dir = '/tmp/gen_vc'
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2019-08-31 17:44:01 +03:00
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// dont push anything to remote repo
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2020-10-15 00:39:09 +03:00
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dry_run = false
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2019-08-31 17:44:01 +03:00
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// server port
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server_port = 7171
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// log file
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2020-10-15 00:39:09 +03:00
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log_file = '$work_dir/log.txt'
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2019-08-31 17:44:01 +03:00
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// log_to is either 'file' or 'terminal'
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2020-10-15 00:39:09 +03:00
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log_to = 'terminal'
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2019-08-31 17:44:01 +03:00
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)
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// errors
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2020-10-15 00:39:09 +03:00
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const (
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2019-08-31 17:44:01 +03:00
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err_msg_build = 'error building'
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err_msg_make = 'make failed'
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err_msg_gen_c = 'failed to generate .c file'
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err_msg_cmd_x = 'error running cmd'
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)
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struct GenVC {
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// logger
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// flag options
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2021-01-12 12:33:16 +03:00
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options FlagOptions
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2019-08-31 17:44:01 +03:00
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mut:
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2021-01-12 12:33:16 +03:00
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logger &log.Log
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2019-08-31 17:44:01 +03:00
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// true if error was experienced running generate
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gen_error bool
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}
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// webhook server
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2020-06-12 09:22:01 +03:00
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struct WebhookServer {
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2020-12-31 19:22:47 +03:00
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vweb.Context
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mut:
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2021-02-02 16:42:00 +03:00
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gen_vc &GenVC = 0 // initialized in init_once
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2019-08-31 17:44:01 +03:00
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}
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// storage for flag options
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struct FlagOptions {
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work_dir string
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2019-08-31 19:00:40 +03:00
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purge bool
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2019-08-31 17:44:01 +03:00
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serve bool
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port int
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log_to string
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log_file string
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dry_run bool
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2020-03-16 16:17:19 +03:00
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force bool
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2019-08-31 17:44:01 +03:00
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}
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fn main() {
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mut fp := flag.new_flag_parser(os.args.clone())
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fp.application(app_name)
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2020-06-12 09:22:01 +03:00
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fp.version(app_version)
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fp.description(app_description)
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fp.skip_executable()
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2020-10-15 00:39:09 +03:00
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show_help := fp.bool('help', 0, false, 'Show this help screen\n')
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2019-08-31 17:44:01 +03:00
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flag_options := parse_flags(mut fp)
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2020-10-15 00:39:09 +03:00
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if show_help {
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println(fp.usage())
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exit(0)
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}
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2019-12-01 12:50:13 +03:00
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fp.finalize() or {
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2020-10-15 00:39:09 +03:00
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eprintln(err)
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println(fp.usage())
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return
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}
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2019-08-31 17:44:01 +03:00
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// webhook server mode
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if flag_options.serve {
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2019-12-21 05:25:28 +03:00
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vweb.run<WebhookServer>(flag_options.port)
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2020-07-08 14:29:55 +03:00
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} else {
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// cmd mode
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2019-08-31 17:44:01 +03:00
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mut gen_vc := new_gen_vc(flag_options)
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2019-08-31 19:00:40 +03:00
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gen_vc.init()
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2019-08-31 17:44:01 +03:00
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gen_vc.generate()
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}
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}
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// new GenVC
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fn new_gen_vc(flag_options FlagOptions) &GenVC {
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2019-12-01 12:50:13 +03:00
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mut logger := &log.Log{}
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2020-04-06 18:22:53 +03:00
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logger.set_level(.debug)
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2019-12-01 12:50:13 +03:00
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if flag_options.log_to == 'file' {
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2020-10-15 00:39:09 +03:00
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logger.set_full_logpath(flag_options.log_file)
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2019-12-01 12:50:13 +03:00
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}
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2019-08-31 17:44:01 +03:00
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return &GenVC{
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options: flag_options
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2019-12-01 12:50:13 +03:00
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logger: logger
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2019-08-31 17:44:01 +03:00
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}
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}
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// WebhookServer init
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2021-04-15 06:27:24 +03:00
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pub fn (mut ws WebhookServer) init_server() {
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2019-08-31 17:44:01 +03:00
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mut fp := flag.new_flag_parser(os.args.clone())
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flag_options := parse_flags(mut fp)
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ws.gen_vc = new_gen_vc(flag_options)
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2019-08-31 19:00:40 +03:00
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ws.gen_vc.init()
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2020-10-15 00:39:09 +03:00
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// ws.gen_vc = new_gen_vc(flag_options)
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2019-08-31 17:44:01 +03:00
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}
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2021-04-15 06:27:24 +03:00
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/*
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2020-06-12 09:34:19 +03:00
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pub fn (mut ws WebhookServer) init() {
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2020-10-15 00:39:09 +03:00
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// ws.init_once()
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2020-06-12 09:34:19 +03:00
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}
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2021-04-15 06:27:24 +03:00
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*/
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2020-06-12 09:34:19 +03:00
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2020-07-08 14:29:55 +03:00
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pub fn (mut ws WebhookServer) index() {
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eprintln('WebhookServer.index() called')
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}
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2019-08-31 17:44:01 +03:00
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// gen webhook
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2020-05-17 14:51:18 +03:00
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pub fn (mut ws WebhookServer) genhook() {
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2020-06-12 16:10:22 +03:00
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// request data
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// println(ws.vweb.req.data)
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// TODO: parse request. json or urlencoded
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// json.decode or net.urllib.parse
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2019-08-31 17:44:01 +03:00
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ws.gen_vc.generate()
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// error in generate
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if ws.gen_vc.gen_error {
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2020-12-31 19:22:47 +03:00
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ws.json('{status: "failed"}')
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2019-08-31 17:44:01 +03:00
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return
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}
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2020-12-31 19:22:47 +03:00
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ws.json('{status: "ok"}')
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2019-08-31 17:44:01 +03:00
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}
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2019-12-21 05:25:28 +03:00
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pub fn (ws &WebhookServer) reset() {
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}
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2019-08-31 17:44:01 +03:00
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// parse flags to FlagOptions struct
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2020-06-04 11:35:40 +03:00
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fn parse_flags(mut fp flag.FlagParser) FlagOptions {
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2019-08-31 17:44:01 +03:00
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return FlagOptions{
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2020-10-15 00:39:09 +03:00
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serve: fp.bool('serve', 0, false, 'run in webhook server mode')
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work_dir: fp.string('work-dir', 0, work_dir, 'gen_vc working directory')
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purge: fp.bool('purge', 0, false, 'force purge the local repositories')
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port: fp.int('port', 0, server_port, 'port for web server to listen on')
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2021-03-08 21:52:13 +03:00
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log_to: fp.string('log-to', 0, log_to, "log to is 'file' or 'terminal'")
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log_file: fp.string('log-file', 0, log_file, "log file to use when log-to is 'file'")
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2020-10-15 00:39:09 +03:00
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dry_run: fp.bool('dry-run', 0, dry_run, 'when specified dont push anything to remote repo')
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force: fp.bool('force', 0, false, 'force update even if already up to date')
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2019-08-31 17:44:01 +03:00
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}
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}
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2019-08-31 19:00:40 +03:00
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// init
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2020-05-17 14:51:18 +03:00
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fn (mut gen_vc GenVC) init() {
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2019-08-31 19:00:40 +03:00
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// purge repos if flag is passed
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if gen_vc.options.purge {
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gen_vc.purge_repos()
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}
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}
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2019-08-31 17:44:01 +03:00
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// regenerate
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2020-05-17 14:51:18 +03:00
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fn (mut gen_vc GenVC) generate() {
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2019-08-31 17:44:01 +03:00
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// set errors to false
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gen_vc.gen_error = false
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// check if gen_vc dir exists
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2019-12-04 23:03:12 +03:00
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if !os.is_dir(gen_vc.options.work_dir) {
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2019-08-31 17:44:01 +03:00
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// try create
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2021-03-01 02:18:14 +03:00
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os.mkdir(gen_vc.options.work_dir) or { panic(err) }
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2019-08-31 17:44:01 +03:00
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// still dosen't exist... we have a problem
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2019-12-04 23:03:12 +03:00
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if !os.is_dir(gen_vc.options.work_dir) {
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2019-08-31 17:44:01 +03:00
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gen_vc.logger.error('error creating directory: $gen_vc.options.work_dir')
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gen_vc.gen_error = true
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return
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}
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}
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// cd to gen_vc dir
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os.chdir(gen_vc.options.work_dir)
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2019-08-31 19:00:40 +03:00
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// if we are not running with the --serve flag (webhook server)
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2019-08-31 17:44:01 +03:00
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// rather than deleting and re-downloading the repo each time
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// first check to see if the local v repo is behind master
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// if it isn't behind theres no point continuing further
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2019-12-04 23:03:12 +03:00
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if !gen_vc.options.serve && os.is_dir(git_repo_dir_v) {
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2019-08-31 17:44:01 +03:00
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gen_vc.cmd_exec('git -C $git_repo_dir_v checkout master')
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// fetch the remote repo just in case there are newer commits there
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gen_vc.cmd_exec('git -C $git_repo_dir_v fetch')
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git_status := gen_vc.cmd_exec('git -C $git_repo_dir_v status')
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2020-03-16 16:17:19 +03:00
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if !git_status.contains('behind') && !gen_vc.options.force {
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2019-08-31 17:44:01 +03:00
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gen_vc.logger.warn('v repository is already up to date.')
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return
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}
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}
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// delete repos
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2019-08-31 19:00:40 +03:00
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gen_vc.purge_repos()
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2019-08-31 17:44:01 +03:00
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// clone repos
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gen_vc.cmd_exec('git clone --depth 1 https://$git_repo_v $git_repo_dir_v')
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gen_vc.cmd_exec('git clone --depth 1 https://$git_repo_vc $git_repo_dir_vc')
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// get output of git log -1 (last commit)
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2020-02-03 14:57:41 +03:00
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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"')
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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"')
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2019-08-31 17:44:01 +03:00
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// date of last commit in each repo
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ts_v := git_log_v.find_between('Date:', '\n').trim_space()
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ts_vc := git_log_vc.find_between('Date:', '\n').trim_space()
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// parse time as string to time.Time
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2021-03-01 02:18:14 +03:00
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last_commit_time_v := time.parse(ts_v) or { panic(err) }
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last_commit_time_vc := time.parse(ts_vc) or { panic(err) }
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2019-08-31 17:44:01 +03:00
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// git dates are in users local timezone and v time.parse does not parse
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// timezones at the moment, so for now get unix timestamp from output also
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t_unix_v := git_log_v.find_between('Date Unix:', '\n').trim_space().int()
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t_unix_vc := git_log_vc.find_between('Date Unix:', '\n').trim_space().int()
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// last commit hash in v repo
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last_commit_hash_v := git_log_v.find_between('commit', '\n').trim_space()
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2019-10-27 10:03:15 +03:00
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last_commit_hash_v_short := last_commit_hash_v[..7]
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2020-02-03 14:57:41 +03:00
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// subject
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2021-01-12 12:33:16 +03:00
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last_commit_subject := git_log_v.find_between('Subject:', '\n').trim_space().replace("'",
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'"')
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2019-08-31 17:44:01 +03:00
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// log some info
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gen_vc.logger.debug('last commit time ($git_repo_v): ' + last_commit_time_v.format_ss())
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gen_vc.logger.debug('last commit time ($git_repo_vc): ' + last_commit_time_vc.format_ss())
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gen_vc.logger.debug('last commit hash ($git_repo_v): $last_commit_hash_v')
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2020-02-03 14:57:41 +03:00
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gen_vc.logger.debug('last commit subject ($git_repo_v): $last_commit_subject')
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2019-08-31 17:44:01 +03:00
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// if vc repo already has a newer commit than the v repo, assume it's up to date
|
2020-03-16 16:17:19 +03:00
|
|
|
if t_unix_vc >= t_unix_v && !gen_vc.options.force {
|
2019-08-31 17:44:01 +03:00
|
|
|
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 {
|
2019-12-04 11:42:18 +03:00
|
|
|
vc_suffix := if os_name == 'nix' { '' } else { '_${os_name[..3]}' }
|
2020-03-08 21:00:57 +03:00
|
|
|
v_flags := if os_name == 'nix' { '-os cross' } else { '-os $os_name' }
|
2019-08-31 17:44:01 +03:00
|
|
|
c_file := 'v${vc_suffix}.c'
|
|
|
|
// try generate .c file
|
2020-02-09 12:08:04 +03:00
|
|
|
gen_vc.cmd_exec('$v_exec $v_flags -o $c_file $git_repo_dir_v/cmd/v')
|
2019-08-31 17:44:01 +03:00
|
|
|
// check if the c file seems ok
|
|
|
|
gen_vc.assert_file_exists_and_is_not_too_short(c_file, err_msg_gen_c)
|
|
|
|
// embed the latest v commit hash into the c file
|
|
|
|
gen_vc.cmd_exec('sed -i \'1s/^/#define V_COMMIT_HASH "$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
|
2019-12-04 23:03:12 +03:00
|
|
|
git_status := gen_vc.cmd_exec('git -C $git_repo_dir_vc status')
|
2019-08-31 17:44:01 +03:00
|
|
|
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
|
2021-01-12 12:33:16 +03:00
|
|
|
gen_vc.cmd_exec_safe("git -C $git_repo_dir_vc commit -m '[v:master] $last_commit_hash_v_short - $last_commit_subject'")
|
2019-08-31 17:44:01 +03:00
|
|
|
// 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
|
2020-05-17 14:51:18 +03:00
|
|
|
fn (mut gen_vc GenVC) cmd_exec_safe(cmd string) string {
|
2019-08-31 17:44:01 +03:00
|
|
|
return gen_vc.command_execute(cmd, gen_vc.options.dry_run)
|
|
|
|
}
|
|
|
|
|
|
|
|
// always execute command
|
2020-05-17 14:51:18 +03:00
|
|
|
fn (mut gen_vc GenVC) cmd_exec(cmd string) string {
|
2019-08-31 17:44:01 +03:00
|
|
|
return gen_vc.command_execute(cmd, false)
|
|
|
|
}
|
|
|
|
|
|
|
|
// execute command
|
2020-05-17 14:51:18 +03:00
|
|
|
fn (mut gen_vc GenVC) command_execute(cmd string, dry bool) string {
|
2019-08-31 17:44:01 +03:00
|
|
|
// if dry is true then dont execute, just log
|
|
|
|
if dry {
|
|
|
|
return gen_vc.command_execute_dry(cmd)
|
|
|
|
}
|
|
|
|
gen_vc.logger.info('cmd: $cmd')
|
2021-03-08 21:52:13 +03:00
|
|
|
r := os.execute(cmd)
|
|
|
|
if r.exit_code < 0 {
|
2019-08-31 17:44:01 +03:00
|
|
|
gen_vc.logger.error('$err_msg_cmd_x: "$cmd" could not start.')
|
2021-03-08 21:52:13 +03:00
|
|
|
gen_vc.logger.error(r.output)
|
2019-08-31 17:44:01 +03:00
|
|
|
// something went wrong, better start fresh next time
|
2019-08-31 19:00:40 +03:00
|
|
|
gen_vc.purge_repos()
|
2019-08-31 17:44:01 +03:00
|
|
|
gen_vc.gen_error = true
|
|
|
|
return ''
|
|
|
|
}
|
|
|
|
if r.exit_code != 0 {
|
|
|
|
gen_vc.logger.error('$err_msg_cmd_x: "$cmd" failed.')
|
|
|
|
gen_vc.logger.error(r.output)
|
|
|
|
// something went wrong, better start fresh next time
|
2019-08-31 19:00:40 +03:00
|
|
|
gen_vc.purge_repos()
|
2019-08-31 17:44:01 +03:00
|
|
|
gen_vc.gen_error = true
|
|
|
|
return ''
|
|
|
|
}
|
|
|
|
return r.output
|
|
|
|
}
|
|
|
|
|
|
|
|
// just log cmd, dont execute
|
2020-05-17 14:51:18 +03:00
|
|
|
fn (mut gen_vc GenVC) command_execute_dry(cmd string) string {
|
2019-08-31 17:44:01 +03:00
|
|
|
gen_vc.logger.info('cmd (dry): "$cmd"')
|
|
|
|
return ''
|
|
|
|
}
|
|
|
|
|
|
|
|
// delete repo directories
|
2020-05-17 14:51:18 +03:00
|
|
|
fn (mut gen_vc GenVC) purge_repos() {
|
2019-08-31 17:44:01 +03:00
|
|
|
// delete old repos (better to be fully explicit here, since these are destructive operations)
|
2019-08-31 19:00:40 +03:00
|
|
|
mut repo_dir := '$gen_vc.options.work_dir/$git_repo_dir_v'
|
2019-12-04 23:03:12 +03:00
|
|
|
if os.is_dir(repo_dir) {
|
2019-08-31 19:00:40 +03:00
|
|
|
gen_vc.logger.info('purging local repo: "$repo_dir"')
|
|
|
|
gen_vc.cmd_exec('rm -rf $repo_dir')
|
|
|
|
}
|
|
|
|
repo_dir = '$gen_vc.options.work_dir/$git_repo_dir_vc'
|
2019-12-04 23:03:12 +03:00
|
|
|
if os.is_dir(repo_dir) {
|
2019-08-31 19:00:40 +03:00
|
|
|
gen_vc.logger.info('purging local repo: "$repo_dir"')
|
|
|
|
gen_vc.cmd_exec('rm -rf $repo_dir')
|
|
|
|
}
|
2019-08-31 17:44:01 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
// check if file size is too short
|
2020-10-15 16:17:52 +03:00
|
|
|
fn (mut gen_vc GenVC) assert_file_exists_and_is_not_too_short(f string, emsg string) {
|
2019-12-04 23:03:12 +03:00
|
|
|
if !os.exists(f) {
|
2019-08-31 17:44:01 +03:00
|
|
|
gen_vc.logger.error('$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
|
|
|
|
}
|
|
|
|
}
|