def _cachify(self, config, temp=False, nosync=False):
'''
Return a config of a cached repository from an orignal config file
:param config: repository configuration
:param temp: repository db should be stored in a temporary location
:param nosync: if a cache exists, don't try to update it
'''
# if cache is disable => temp =True
if self.cache_path is None:
temp = True
try:
original_dbpath = config.dbpath
if temp and nosync:
raise ISError("sync is disabled")
elif temp:
# this is a temporary cached repository
tempfd, config.dbpath = tempfile.mkstemp()
os.close(tempfd)
self.tempfiles.append(config.dbpath)
else:
config.dbpath = os.path.join(self.cache_path, config.name)
if not nosync:
# Open remote database
rdb = PipeFile(original_dbpath, timeout=self.timeout)
# get remote last modification
if rdb.mtime is None:
# We doesn't have modification time, we use the last file
try:
rlast = int(PipeFile(config.lastpath, mode='r',
timeout=self.timeout).read().strip())
except ISError:
rlast = -1
else:
rlast = rdb.mtime
# get local last value
if os.path.exists(config.dbpath):
llast = int(os.stat(config.dbpath).st_mtime)
else:
llast = -2
# if repo is out of date, download it
if rlast != llast:
try:
arrow(u"Downloading %s" % original_dbpath)
rdb.progressbar = True
ldb = open(config.dbpath, "wb")
rdb.consume(ldb)
ldb.close()
rdb.close()
istools.chrights(config.dbpath,
uid=config.uid,
gid=config.gid,
mode=config.fmod,
mtime=rlast)
except:
if os.path.exists(config.dbpath):
os.unlink(config.dbpath)
raise
except ISError as e :
# if something append bad during caching, we mark repo as offline
debug(u"Unable to cache repository %s: %s" % (config.name, e))
config.offline = True
return self.factory.create(config)
