X-Git-Url: https://git.madduck.net/etc/taskwarrior.git/blobdiff_plain/c7b2d1ec4f3b96ba04b216b1add37f915d1e5399..cef665aa15650de3a3710215d83d6910f046209f:/tasklib/task.py diff --git a/tasklib/task.py b/tasklib/task.py index 330491f..27df12c 100644 --- a/tasklib/task.py +++ b/tasklib/task.py @@ -29,19 +29,48 @@ class TaskResource(object): def _load_data(self, data): self._data = data + # We need to use a copy for original data, so that changes + # are not propagated. Shallow copy is alright, since data dict uses only + # primitive data types + self._original_data = data.copy() + + def _update_data(self, data, update_original=False): + """ + Low level update of the internal _data dict. Data which are coming as + updates should already be serialized. If update_original is True, the + original_data dict is updated as well. + """ + + self._data.update(data) + + if update_original: + self._original_data.update(data) def __getitem__(self, key): - hydrate_func = getattr(self, 'deserialize_{0}'.format(key), - lambda x: x) - return hydrate_func(self._data.get(key)) + # This is a workaround to make TaskResource non-iterable + # over simple index-based iteration + try: + int(key) + raise StopIteration + except ValueError: + pass + + return self._deserialize(key, self._data.get(key)) def __setitem__(self, key, value): if key in self.read_only_fields: raise RuntimeError('Field \'%s\' is read-only' % key) + self._data[key] = self._serialize(key, value) + + def _deserialize(self, key, value): + hydrate_func = getattr(self, 'deserialize_{0}'.format(key), + lambda x: x) + return hydrate_func(value) + + def _serialize(self, key, value): dehydrate_func = getattr(self, 'serialize_{0}'.format(key), lambda x: x) - self._data[key] = dehydrate_func(value) - self._modified_fields.add(key) + return dehydrate_func(value) def __str__(self): s = six.text_type(self.__unicode__()) @@ -76,7 +105,7 @@ class TaskAnnotation(TaskResource): class Task(TaskResource): - read_only_fields = ['id', 'entry', 'urgency', 'uuid'] + read_only_fields = ['id', 'entry', 'urgency', 'uuid', 'modified'] class DoesNotExist(Exception): pass @@ -100,18 +129,44 @@ class Task(TaskResource): """ pass - def __init__(self, warrior, data={}, **kwargs): + def __init__(self, warrior, **kwargs): self.warrior = warrior - # We keep data for backwards compatibility - kwargs.update(data) + # We serialize the data in kwargs so that users of the library + # do not have to pass different data formats via __setitem__ and + # __init__ methods, that would be confusing - self._load_data(kwargs) - self._modified_fields = set() + # Rather unfortunate syntax due to python2.6 comaptiblity + self._load_data(dict((key, self._serialize(key, value)) + for (key, value) in six.iteritems(kwargs))) def __unicode__(self): return self['description'] + def __eq__(self, other): + if self['uuid'] and other['uuid']: + # For saved Tasks, just define equality by equality of uuids + return self['uuid'] == other['uuid'] + else: + # If the tasks are not saved, compare the actual instances + return id(self) == id(other) + + + def __hash__(self): + if self['uuid']: + # For saved Tasks, just define equality by equality of uuids + return self['uuid'].__hash__() + else: + # If the tasks are not saved, return hash of instance id + return id(self).__hash__() + + @property + def _modified_fields(self): + writable_fields = set(self._data.keys()) - set(self.read_only_fields) + for key in writable_fields: + if self._data.get(key) != self._original_data.get(key): + yield key + @property def completed(self): return self['status'] == six.text_type('completed') @@ -133,6 +188,8 @@ class Task(TaskResource): return self['uuid'] is not None or self['id'] is not None def serialize_due(self, date): + if not date: + return None return date.strftime(DATE_FORMAT) def deserialize_due(self, date_str): @@ -140,6 +197,41 @@ class Task(TaskResource): return None return datetime.datetime.strptime(date_str, DATE_FORMAT) + def serialize_depends(self, cur_dependencies): + # Check that all the tasks are saved + for task in cur_dependencies: + if not task.saved: + raise Task.NotSaved('Task \'%s\' needs to be saved before ' + 'it can be set as dependency.' % task) + + # Return the list of uuids + return ','.join(task['uuid'] for task in cur_dependencies) + + def deserialize_depends(self, raw_uuids): + raw_uuids = raw_uuids or '' # Convert None to empty string + uuids = raw_uuids.split(',') + return set(self.warrior.tasks.get(uuid=uuid) for uuid in uuids if uuid) + + def format_depends(self): + # We need to generate added and removed dependencies list, + # since Taskwarrior does not accept redefining dependencies. + + # This cannot be part of serialize_depends, since we need + # to keep a list of all depedencies in the _data dictionary, + # not just currently added/removed ones + + old_dependencies_raw = self._original_data.get('depends','') + old_dependencies = self.deserialize_depends(old_dependencies_raw) + + added = self['depends'] - old_dependencies + removed = old_dependencies - self['depends'] + + # Removed dependencies need to be prefixed with '-' + return 'depends:' + ','.join( + [t['uuid'] for t in added] + + ['-' + t['uuid'] for t in removed] + ) + def deserialize_annotations(self, data): return [TaskAnnotation(self, d) for d in data] if data else [] @@ -151,6 +243,14 @@ class Task(TaskResource): def serialize_tags(self, tags): return ','.join(tags) if tags else '' + def format_description(self): + # Task version older than 2.4.0 ignores first word of the + # task description if description: prefix is used + if self.warrior.version < VERSION_2_4_0: + return self._data['description'] + else: + return "description:'{0}'".format(self._data['description'] or '') + def delete(self): if not self.saved: raise Task.NotSaved("Task needs to be saved before it can be deleted") @@ -204,7 +304,6 @@ class Task(TaskResource): # Circumvent the ID storage, since ID is considered read-only self._data['id'] = int(id_lines[0].split(' ')[2].rstrip('.')) - self._modified_fields.clear() self.refresh() def add_annotation(self, annotation): @@ -229,12 +328,12 @@ class Task(TaskResource): args = [] def add_field(field): - # Task version older than 2.4.0 ignores first word of the - # task description if description: prefix is used - if self.warrior.version < VERSION_2_4_0 and field == 'description': - args.append(self._data[field]) - else: - args.append('{0}:{1}'.format(field, self._data[field])) + # Add the output of format_field method to args list (defaults to + # field:value) + format_default = lambda k: "{0}:'{1}'".format(k, self._data[k] or '') + format_func = getattr(self, 'format_{0}'.format(field), + lambda: format_default(field)) + args.append(format_func()) # If we're modifying saved task, simply pass on all modified fields if self.saved: @@ -262,9 +361,9 @@ class Task(TaskResource): if only_fields: to_update = dict( [(k, new_data.get(k)) for k in only_fields]) - self._data.update(to_update) + self._update_data(to_update, update_original=True) else: - self._data = new_data + self._load_data(new_data) class TaskFilter(object): @@ -284,7 +383,13 @@ class TaskFilter(object): # Replace the value with empty string, since that is the # convention in TW for empty values value = value if value is not None else '' - self.filter_params.append('{0}:{1}'.format(key, value)) + + # If we are filtering by uuid:, do not use uuid keyword + # due to TW-1452 bug + if key == 'uuid': + self.filter_params.insert(0, value) + else: + self.filter_params.append('{0}:{1}'.format(key, value)) def get_filter_params(self): return [f for f in self.filter_params if f] @@ -455,7 +560,9 @@ class TaskWarrior(object): if line: data = line.strip(',') try: - tasks.append(Task(self, json.loads(data))) + filtered_task = Task(self) + filtered_task._load_data(json.loads(data)) + tasks.append(filtered_task) except ValueError: raise TaskWarriorException('Invalid JSON: %s' % data) return tasks