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# This file is part of Buildbot. Buildbot is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members
import time, re, string
import datetime
import calendar
from buildbot.util.misc import deferredLocked, SerializedInvocation
def naturalSort(l):
l = l[:]
def try_int(s):
try:
return int(s)
except ValueError:
return s
def key_func(item):
return [try_int(s) for s in re.split('(\d+)', item)]
# prepend integer keys to each element, sort them, then strip the keys
keyed_l = [ (key_func(i), i) for i in l ]
keyed_l.sort()
l = [ i[1] for i in keyed_l ]
return l
def flatten(l):
if l and type(l[0]) == list:
rv = []
for e in l:
if type(e) == list:
rv.extend(flatten(e))
else:
rv.append(e)
return rv
else:
return l
def now(_reactor=None):
if _reactor and hasattr(_reactor, "seconds"):
return _reactor.seconds()
else:
return time.time()
def formatInterval(eta):
eta_parts = []
if eta > 3600:
eta_parts.append("%d hrs" % (eta / 3600))
eta %= 3600
if eta > 60:
eta_parts.append("%d mins" % (eta / 60))
eta %= 60
eta_parts.append("%d secs" % eta)
return ", ".join(eta_parts)
class ComparableMixin:
compare_attrs = []
class _None:
pass
def __hash__(self):
alist = [self.__class__] + \
[getattr(self, name, self._None) for name in self.compare_attrs]
return hash(tuple(map(str, alist)))
def __cmp__(self, them):
result = cmp(type(self), type(them))
if result:
return result
result = cmp(self.__class__.__name__, them.__class__.__name__)
if result:
return result
result = cmp(self.compare_attrs, them.compare_attrs)
if result:
return result
self_list = [getattr(self, name, self._None)
for name in self.compare_attrs]
them_list = [getattr(them, name, self._None)
for name in self.compare_attrs]
return cmp(self_list, them_list)
def diffSets(old, new):
if not isinstance(old, set):
old = set(old)
if not isinstance(new, set):
new = set(new)
return old - new, new - old
# Remove potentially harmful characters from builder name if it is to be
# used as the build dir.
badchars_map = string.maketrans("\t !#$%&'()*+,./:;<=>?@[\\]^{|}~",
"______________________________")
def safeTranslate(str):
if isinstance(str, unicode):
str = str.encode('utf8')
return str.translate(badchars_map)
def none_or_str(x):
if x is not None and not isinstance(x, str):
return str(x)
return x
# place a working json module at 'buildbot.util.json'. Code is adapted from
# Paul Wise <pabs@debian.org>:
# http://lists.debian.org/debian-python/2010/02/msg00016.html
# json doesn't exist as a standard module until python2.6
# However python2.6's json module is much slower than simplejson, so we prefer
# to use simplejson if available.
try:
import simplejson as json
assert json
except ImportError:
import json # python 2.6 or 2.7
try:
_tmp = json.loads
except AttributeError:
import warnings
import sys
warnings.warn("Use simplejson, not the old json module.")
sys.modules.pop('json') # get rid of the bad json module
import simplejson as json
# changes and schedulers consider None to be a legitimate name for a branch,
# which makes default function keyword arguments hard to handle. This value
# is always false.
class NotABranch:
def __nonzero__(self):
return False
NotABranch = NotABranch()
# time-handling methods
class UTC(datetime.tzinfo):
"""Simple definition of UTC timezone"""
def utcoffset(self, dt):
return datetime.timedelta(0)
def dst(self, dt):
return datetime.timedelta(0)
def tzname(self):
return "UTC"
UTC = UTC()
def epoch2datetime(epoch):
"""Convert a UNIX epoch time to a datetime object, in the UTC timezone"""
if epoch is not None:
return datetime.datetime.fromtimestamp(epoch, tz=UTC)
def datetime2epoch(dt):
"""Convert a non-naive datetime object to a UNIX epoch timestamp"""
if dt is not None:
return calendar.timegm(dt.utctimetuple())
def makeList(input):
if isinstance(input, basestring):
return [ input ]
elif input is None:
return [ ]
else:
return list(input)
def in_reactor(f):
"""decorate a function by running it with maybeDeferred in a reactor"""
def wrap(*args, **kwargs):
from twisted.internet import reactor, defer
result = [ ]
def async():
d = defer.maybeDeferred(f, *args, **kwargs)
def eb(f):
f.printTraceback()
d.addErrback(eb)
def do_stop(r):
result.append(r)
reactor.stop()
d.addBoth(do_stop)
reactor.callWhenRunning(async)
reactor.run()
return result[0]
wrap.__doc__ = f.__doc__
wrap.__name__ = f.__name__
wrap._orig = f # for tests
return wrap
__all__ = [
'naturalSort', 'now', 'formatInterval', 'ComparableMixin', 'json',
'safeTranslate', 'LRUCache', 'none_or_str',
'NotABranch', 'deferredLocked', 'SerializedInvocation', 'UTC',
'diffLists', 'makeList', 'in_reactor' ]
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