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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 re, types
from buildbot.util import ComparableMixin, NotABranch
class ChangeFilter(ComparableMixin):
# NOTE: If users use a filter_fn, we have no way to determine whether it has
# changed at reconfig, so the scheduler will always be restarted. That's as
# good as Python can do.
compare_attrs = ('filter_fn', 'checks')
def __init__(self,
# gets a Change object, returns boolean
filter_fn=None,
# change attribute comparisons: exact match to PROJECT, member of
# list PROJECTS, regular expression match to PROJECT_RE, or
# PROJECT_FN returns True when called with the project; repository,
# branch, and so on are similar. Note that the regular expressions
# are anchored to the first character of the string. For convenience,
# a list can also be specified to the singular option (e.g,. PROJETS
project=None, project_re=None, project_fn=None,
repository=None, repository_re=None, repository_fn=None,
branch=NotABranch, branch_re=None, branch_fn=None,
category=None, category_re=None, category_fn=None,
codebase=None, codebase_re=None, codebase_fn=None):
def mklist(x):
if x is not None and type(x) is not types.ListType:
return [ x ]
return x
def mklist_br(x): # branch needs to be handled specially
if x is NotABranch:
return None
if type(x) is not types.ListType:
return [ x ]
return x
def mkre(r):
if r is not None and not hasattr(r, 'match'):
r = re.compile(r)
return r
self.filter_fn = filter_fn
self.checks = [
(mklist(project), mkre(project_re), project_fn, "project"),
(mklist(repository), mkre(repository_re), repository_fn, "repository"),
(mklist_br(branch), mkre(branch_re), branch_fn, "branch"),
(mklist(category), mkre(category_re), category_fn, "category"),
(mklist(codebase), mkre(codebase_re), codebase_fn, "codebase"),
]
def filter_change(self, change):
if self.filter_fn is not None and not self.filter_fn(change):
return False
for (filt_list, filt_re, filt_fn, chg_attr) in self.checks:
chg_val = getattr(change, chg_attr, '')
if filt_list is not None and chg_val not in filt_list:
return False
if filt_re is not None and (chg_val is None or not filt_re.match(chg_val)):
return False
if filt_fn is not None and not filt_fn(chg_val):
return False
return True
def __repr__(self):
checks = []
for (filt_list, filt_re, filt_fn, chg_attr) in self.checks:
if filt_list is not None and len(filt_list) == 1:
checks.append('%s == %s' % (chg_attr, filt_list[0]))
elif filt_list is not None:
checks.append('%s in %r' % (chg_attr, filt_list))
if filt_re is not None :
checks.append('%s ~/%s/' % (chg_attr, filt_re))
if filt_fn is not None :
checks.append('%s(%s)' % (filt_fn.__name__, chg_attr))
return "<%s on %s>" % (self.__class__.__name__, ' and '.join(checks))
@staticmethod
def fromSchedulerConstructorArgs(change_filter=None,
branch=NotABranch, categories=None):
"""
Static method to create a filter based on constructor args
change_filter, branch, and categories; use default values @code{None},
@code{NotABranch}, and @code{None}, respectively. These arguments are
interpreted as documented for the
L{buildbot.schedulers.basic.Scheduler} class.
@returns: L{ChangeFilter} instance or None for not filtering
"""
# use a change_filter, if given one
if change_filter:
if (branch is not NotABranch or categories is not None):
raise RuntimeError("cannot specify both change_filter and "
"branch or categories")
return change_filter
elif branch is not NotABranch or categories:
# build a change filter from the deprecated category and branch args
cfargs = {}
if branch is not NotABranch: cfargs['branch'] = branch
if categories: cfargs['category'] = categories
return ChangeFilter(**cfargs)
else:
return None
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