| #!/usr/bin/env python3 |
| # Quickie script to estimate mainline release dates. |
| # |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| # |
| # -*- coding: utf-8 -*- |
| # |
| __author__ = 'Konstantin Ryabitsev <konstantin@linuxfoundation.org>' |
| |
| |
| import argparse |
| import requests |
| import datetime |
| import logging |
| import json |
| import sys |
| |
| RELEASES_JSON = 'https://www.kernel.org/releases.json' |
| WINDOW_DAYS = 14 |
| RC_COUNT = 7 |
| CYCLE_DAYS = WINDOW_DAYS + (RC_COUNT * 7) |
| VERSION = '1.0' |
| # This is where the minor version number starts looking "too big" and |
| # we go to the "next major version dot-zero" -- Linus says that it will |
| # likely always be after 19. The only time this went to 20 was for |
| # 4.20, and the only explanation we can give is that everyone was too |
| # high at the time to notice. |
| TOOBIG = 19 |
| |
| logger = logging.getLogger('mainline-when') |
| |
| |
| def parse_version(ver): |
| rcn = None |
| if ver.find('-') > 0: |
| ver, rc = ver.split('-') |
| rcn = int(rc[2:]) |
| jv, nv = ver.split('.') |
| majver = int(jv) |
| minver = int(nv) |
| |
| return majver, minver, rcn |
| |
| |
| def main(estnext=3, forcever=None, rjson=None): |
| if rjson is None: |
| rses = requests.session() |
| headers = {'User-Agent': f'mainline-when/{VERSION}'} |
| rses.headers.update(headers) |
| resp = rses.get(RELEASES_JSON) |
| resp.raise_for_status() |
| rels = json.loads(resp.content) |
| else: |
| with open(rjson, 'r') as fh: |
| content = fh.read() |
| rels = json.loads(content) |
| |
| release = None |
| for release in rels['releases']: |
| if release['moniker'] != 'mainline': |
| continue |
| break |
| if release is None: |
| logger.critical('Could not find mainline release info in %s', RELEASES_JSON) |
| sys.exit(1) |
| |
| ics = list() |
| if forcever: |
| majver, minver, rcn = parse_version(forcever) |
| else: |
| majver, minver, rcn = parse_version(release.get('version')) |
| crel = datetime.datetime.strptime(release['released']['isodate'], '%Y-%m-%d') |
| if rcn: |
| logger.info(f'current status: {majver}.{minver}-rc{rcn}') |
| mrel = crel - datetime.timedelta(days=(7*rcn)+7) |
| if rcn < 8: |
| frel = mrel + datetime.timedelta(days=CYCLE_DAYS) |
| else: |
| # Add 7 days to the latest release and hope for the best |
| frel = crel + datetime.timedelta(days=7) |
| else: |
| # We're currently in a merge window |
| minver += 1 |
| if minver > TOOBIG: |
| majver += 1 |
| minver = 0 |
| logger.info(f'current status: {majver}.{minver} merge window') |
| mrel = crel |
| frel = crel + datetime.timedelta(days=CYCLE_DAYS) |
| logger.info('---') |
| wo = mrel + datetime.timedelta(days=1) |
| wc = mrel + datetime.timedelta(days=WINDOW_DAYS) |
| ics.append((majver, minver, wo, wc, frel)) |
| if rcn: |
| logger.info(f'{majver}.{minver} window open : {wo.strftime("%Y-%m-%d")}') |
| logger.info(f'{majver}.{minver} window close: {wc.strftime("%Y-%m-%d")}') |
| logger.info(f'{majver}.{minver} rc{rcn} : {crel.strftime("%Y-%m-%d")} <-- you are here') |
| else: |
| logger.info(f'{majver}.{minver} window open : {wo.strftime("%Y-%m-%d")} <-- you are here') |
| logger.info(f'{majver}.{minver} window close: {wc.strftime("%Y-%m-%d")}') |
| |
| logger.info(f'{majver}.{minver} final : {frel.strftime("%Y-%m-%d")}') |
| |
| # Estimate next versions |
| for nextver in range(minver+1, minver+estnext+1): |
| if nextver > TOOBIG: |
| estmaj = majver + 1 |
| estmin = nextver - (TOOBIG + 1) |
| else: |
| estmaj = majver |
| estmin = nextver |
| logger.info('---') |
| wo = frel + datetime.timedelta(days=1) |
| wc = frel + datetime.timedelta(days=WINDOW_DAYS) |
| logger.info(f'{estmaj}.{estmin} window open : {wo.strftime("%Y-%m-%d")}') |
| logger.info(f'{estmaj}.{estmin} window close: {wc.strftime("%Y-%m-%d")}') |
| frel = frel + datetime.timedelta(days=CYCLE_DAYS) |
| logger.info(f'{estmaj}.{estmin} final : {frel.strftime("%Y-%m-%d")}') |
| ics.append((estmaj, estmin, wo, wc, frel)) |
| logger.info('---') |
| logger.info('NB: All dates set in the future are estimates.') |
| return ics |
| |
| |
| def write_ics(ics, outfile, domain): |
| if not domain: |
| domain = 'mainline-when.local' |
| now = datetime.datetime.now() |
| admonition = 'NOTE: all dates set in the future are estimates.' |
| with open(outfile, 'w') as fh: |
| fh.write('BEGIN:VCALENDAR\r\n') |
| fh.write('VERSION:2.0\r\n') |
| fh.write(f'PRODID:{domain}\r\n') |
| fh.write('METHOD:PUBLISH\r\n') |
| for majver, minver, wo, wc, frel in ics: |
| # Merge window |
| fh.write('BEGIN:VEVENT\r\n') |
| fh.write(f'UID:kernel-v{majver}.{minver}-merge-window@{domain}\r\n') |
| fh.write(f'SUMMARY:Kernel v{majver}.{minver} merge window\r\n') |
| if wo > now: |
| fh.write(f'DESCRIPTION:{admonition}\r\n') |
| fh.write('CLASS:PUBLIC\r\n') |
| fh.write(f'DTSTART;VALUE=DATE:{wo.strftime("%Y%m%d")}\r\n') |
| fh.write(f'DTEND;VALUE=DATE:{wc.strftime("%Y%m%d")}\r\n') |
| fh.write(f'CREATED:{now.strftime("%Y%m%d")}\r\n') |
| fh.write(f'LAST-MODIFIED:{now.strftime("%Y%m%d")}\r\n') |
| fh.write('END:VEVENT\r\n') |
| # rc1 |
| fh.write('BEGIN:VEVENT\r\n') |
| fh.write(f'UID:kernel-v{majver}.{minver}-rc1@{domain}\r\n') |
| fh.write(f'SUMMARY:Kernel v{majver}.{minver}-rc1 release\r\n') |
| if wc > now: |
| fh.write(f'DESCRIPTION:{admonition}\r\n') |
| fh.write('CLASS:PUBLIC\r\n') |
| fh.write(f'DTSTART;VALUE=DATE:{wc.strftime("%Y%m%d")}\r\n') |
| fh.write(f'CREATED:{now.strftime("%Y%m%d")}\r\n') |
| fh.write(f'LAST-MODIFIED:{now.strftime("%Y%m%d")}\r\n') |
| fh.write('END:VEVENT\r\n') |
| # final |
| fh.write('BEGIN:VEVENT\r\n') |
| fh.write(f'UID:kernel-v{majver}.{minver}-final@{domain}\r\n') |
| fh.write(f'SUMMARY:Kernel v{majver}.{minver} final release\r\n') |
| if frel > now: |
| fh.write(f'DESCRIPTION:{admonition} If deemed necessary, this may end up being another -rc release.') |
| fh.write('\r\n') |
| |
| fh.write('CLASS:PUBLIC\r\n') |
| fh.write(f'DTSTART;VALUE=DATE:{frel.strftime("%Y%m%d")}\r\n') |
| fh.write(f'CREATED:{now.strftime("%Y%m%d")}\r\n') |
| fh.write(f'LAST-MODIFIED:{now.strftime("%Y%m%d")}\r\n') |
| fh.write('END:VEVENT\r\n') |
| fh.write('END:VCALENDAR\r\n') |
| |
| |
| if __name__ == '__main__': |
| parser = argparse.ArgumentParser() |
| parser.add_argument('-n', '--next', type=int, default=3, help='How many versions to estimate') |
| parser.add_argument('-i', '--ics-out', help='Write an .ics file instead') |
| parser.add_argument('-d', '--ics-domain', help='Domain to use for ics generation') |
| parser.add_argument('-r', '--releases-json', help='Use this local copy of releases.json') |
| parser.add_argument('--force-version', help='Force version to be this (testing only)') |
| cmdargs = parser.parse_args() |
| |
| logger.setLevel(logging.DEBUG) |
| ch = logging.StreamHandler() |
| formatter = logging.Formatter('%(message)s') |
| ch.setFormatter(formatter) |
| if cmdargs.ics_out: |
| ch.setLevel(logging.CRITICAL) |
| else: |
| ch.setLevel(logging.INFO) |
| logger.addHandler(ch) |
| |
| icsdata = main(estnext=cmdargs.next, forcever=cmdargs.force_version, rjson=cmdargs.releases_json) |
| if cmdargs.ics_out: |
| write_ics(icsdata, cmdargs.ics_out, cmdargs.ics_domain) |
