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# Copyright 2018-present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from collections import OrderedDict as OD
from itertools import product
try:
# Python 3 abstract base classes.
import collections.abc as abc
except ImportError:
import collections as abc
from evergreen_config_generator import ConfigObject
from evergreen_config_generator.functions import func
class Task(ConfigObject):
def __init__(self, *args, **kwargs):
super(Task, self).__init__(*args, **kwargs)
self.tags = set()
self.options = OD()
self.depends_on = None
self.commands = kwargs.pop('commands', None) or []
tags = kwargs.pop('tags', None)
if tags:
self.add_tags(*tags)
depends_on = kwargs.pop('depends_on', None)
if depends_on:
self.add_dependency(depends_on)
if 'exec_timeout_secs' in kwargs:
self.options['exec_timeout_secs'] = kwargs.pop('exec_timeout_secs')
name_prefix = 'test'
def add_tags(self, *args):
self.tags.update(args)
def has_tags(self, *args):
return bool(self.tags.intersection(args))
def add_dependency(self, dependency):
if not isinstance(dependency, abc.Mapping):
dependency = OD([('name', dependency)])
if self.depends_on is None:
self.depends_on = dependency
elif isinstance(self.depends_on, abc.Mapping):
self.depends_on = [self.depends_on, dependency]
else:
self.depends_on.append(dependency)
def display(self, axis_name):
value = getattr(self, axis_name)
# E.g., if self.auth is False, return 'noauth'.
if value is False:
return 'no' + axis_name
if value is True:
return axis_name
return value
def on_off(self, *args, **kwargs):
assert not (args and kwargs)
if args:
axis_name, = args
return 'on' if getattr(self, axis_name) else 'off'
(axis_name, value), = kwargs.items()
return 'on' if getattr(self, axis_name) == value else 'off'
def to_dict(self):
task = super(Task, self).to_dict()
if self.tags:
task['tags'] = self.tags
task.update(self.options)
if self.depends_on:
task['depends_on'] = self.depends_on
task['commands'] = self.commands
return task
class NamedTask(Task):
def __init__(self, task_name, commands=None, **kwargs):
super(NamedTask, self).__init__(commands=commands, **kwargs)
self._task_name = task_name
@property
def name(self):
return self._task_name
class FuncTask(NamedTask):
def __init__(self, task_name, *args, **kwargs):
commands = [func(func_name) for func_name in args]
super(FuncTask, self).__init__(task_name, commands=commands, **kwargs)
class Prohibited(Exception):
pass
def require(rule):
if not rule:
raise Prohibited()
def prohibit(rule):
if rule:
raise Prohibited()
def both_or_neither(rule0, rule1):
if rule0:
require(rule1)
else:
prohibit(rule1)
class MatrixTask(Task):
axes = OD()
def __init__(self, *args, **kwargs):
axis_dict = OD()
for name, values in self.axes.items():
# First value for each axis is the default value.
axis_dict[name] = kwargs.pop(name, values[0])
super(MatrixTask, self).__init__(*args, **kwargs)
self.__dict__.update(axis_dict)
@classmethod
def matrix(cls):
for cell in product(*cls.axes.values()):
axis_values = dict(zip(cls.axes, cell))
task = cls(**axis_values)
if task.allowed:
yield task
@property
def allowed(self):
try:
self._check_allowed()
return True
except Prohibited:
return False
def _check_allowed(self):
pass
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