def add_to_target(self, task, target, *link, check=True):
linkname = slugify(list(link)) if link else None
try:
if check and linkname in self.targets[target]:
error('Link "{}" already in target "{}"'.format(linkname, target))
except TypeError:
error('Target must be a string, not {}'.format(type(target).__name__))
self.targets[target][linkname] = task
task.targets.append((target, linkname))
return task
def add_dependency(self, task, *links, needed=False, escape=True):
if not links:
link = None
else:
link, links = links[0], links[1:]
if self == task:
error('Task cannot depend on itself: {}'.format(self))
self.children.append(task)
if link is not None:
linkname = slugify(link) if escape else link
else:
self.noname_link_counter += 1
linkname = '_{}'.format(self.noname_link_counter)
self.links[linkname] = Task.Link(task, links, needed)
task.parents.append((self, linkname))
return self
