def run(self):
queue = self.queue
if not queue:
return
tasks = dict((task.name, task) for task in queue)
while queue:
task = queue.pop(0)
for requirement in task.requires:
if requirement not in tasks:
required_task = Tasks.get(requirement)(self)
tasks[requirement] = required_task
queue.append(required_task)
task.dependencies.add(tasks[requirement])
graph = dict((task, task.dependencies) for task in tasks.itervalues())
self.queue = topological_sort(graph)
while self.queue:
task = self.queue.pop(0)
try:
self.execute(task)
except TaskFailed:
return False
else:
self.completed.append(task)
def run(self):
queue = self.queue
if not queue:
return
tasks = dict((task.name, task) for task in queue)
while queue:
task = queue.pop(0)
for requirement in task.requires:
if requirement not in tasks:
required_task = Tasks.get(requirement)(self)
tasks[requirement] = required_task
queue.append(required_task)
task.dependencies.add(tasks[requirement])
graph = dict((task, task.dependencies) for task in tasks.itervalues())
self.queue = topological_sort(graph)
while self.queue:
task = self.queue.pop(0)
try:
self.execute(task)
except TaskFailed:
return False
else:
self.completed.append(task)
def execute(self, task, environment=None, **params):
if environment or params:
environment = self.environment.overlay(environment, **params)
if isinstance(task, basestring):
task = Tasks.get(task)(self)
if task.independent:
self._reset_path()
self.context.append(task.name)
try:
if task.execute(environment) is False:
raise TaskFailed()
finally:
self.context.pop()
def execute(self, task, environment=None, **params):
if environment or params:
environment = self.environment.overlay(environment, **params)
if isinstance(task, basestring):
task = Tasks.get(task)(self)
if task.independent:
self._reset_path()
self.context.append(task.name)
try:
if task.execute(environment) is False:
raise TaskFailed()
finally:
self.context.pop()
def _find_task(self, name):
try:
task = Tasks.get(name)
except MultipleTasksError, exception:
self.error('multiple tasks!!!')
return False
def _find_task(self, name):
try:
task = Tasks.get(name)
except MultipleTasksError, exception:
self.error('multiple tasks!!!')
return False
