buildbot/repod.py

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Python
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2019-04-05 00:21:12 +08:00
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# repod.py: Automatic management tool for an arch repo.
# This file is part of Buildbot by JerryXiao
import logging
from multiprocessing.connection import Listener
from time import time, sleep
from pathlib import Path
from subprocess import CalledProcessError
from utils import print_exc_plus
from config import REPOD_BIND_ADDRESS, REPOD_BIND_PASSWD, REPO_PUSH_BANDWIDTH, \
GPG_VERIFY_CMD
from repo import _clean_archive as clean, \
_regenerate as regenerate, \
_remove as remove, \
_update as update
from utils import bash
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
logger = logging.getLogger(__name__)
class pushFm:
def __init__(self):
self.fname = None
self.size = None
self.start_time = None
self.end_time = None
def start(self, fname, size):
'''
size is in MB
'''
if self.is_busy():
return f'busy with {self.fname}'
self.fname = fname
self.start_time = time()
self.size = size
if size <= 7.5:
self.end_time = self.start_time + 120
else:
self.end_time = self.start_time + size / (REPO_PUSH_BANDWIDTH / 8) * 2
return None
def tick(self):
'''
return None means success
else returns an error string
'''
if self.is_busy():
if time() > self.end_time:
ret = f'file {self.fname} is supposed to finish at {self.end_time}'
self.__init__()
logger.error(f'pfm: {ret}')
return ret
else:
return None
else:
return None
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def done(self, fname, overwrite=False):
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'''
return None means success
else returns an error string
'''
if fname == self.fname:
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try:
update_path = Path('updates')
pkg_found = False
sig_found = False
for fpath in update_path.iterdir():
if fpath.is_dir:
continue
if fpath.name == self.fname:
pkg_found = fpath
elif fpath.name == f'{self.fname}.sig':
sig_found = fpath
if pkg_found and sig_found:
try:
bash(f'{GPG_VERIFY_CMD} {sig_found} {pkg_found}')
except CalledProcessError:
print_exc_plus()
return 'GPG verify error'
else:
try:
if update(overwrite=overwrite):
return None
except Exception:
print_exc_plus()
return 'update error'
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else:
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return f'file missing: pkg {pkg_found} sig {sig_found}'
return "unexpected error"
finally:
self.__init__()
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else:
return "Wrong file"
def is_busy(self):
return not (self.fname is None)
pfm = pushFm()
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def push_files(filename, size):
pfm.tick()
return pfm.start(filename, size)
def add_files(filename, overwrite=False):
return pfm.done(filename, overwrite=overwrite)
# server part
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def run(funcname, args=list(), kwargs=dict()):
if funcname in ('clean', 'regenerate', 'remove',
'update', 'push_files', 'add_files'):
logger.info('running: %s %s %s',funcname, args, kwargs)
ret = eval(funcname)(*args, **kwargs)
logger.info('done: %s %s',funcname, ret)
return ret
else:
logger.error('unexpected: %s %s %s',funcname, args, kwargs)
return False
if __name__ == '__main__':
while True:
try:
with Listener(REPOD_BIND_ADDRESS, authkey=REPOD_BIND_PASSWD) as listener:
with listener.accept() as conn:
logger.info('connection accepted from %s', listener.last_accepted)
myrecv = conn.recv()
if type(myrecv) is list and len(myrecv) == 3:
(funcname, args, kwargs) = myrecv
funcname = str(funcname)
conn.send(run(funcname, args=args, kwargs=kwargs))
except Exception:
print_exc_plus()
except KeyboardInterrupt:
logger.info('KeyboardInterrupt')
print_exc_plus()
break