X-Git-Url: https://git.madduck.net/etc/taskwarrior.git/blobdiff_plain/d6732e2b96e9f646510985b780d86c667b5eb879..902229c07a245bd0f27317e74916643a0dc39267:/tasklib/task.py diff --git a/tasklib/task.py b/tasklib/task.py index 23f9277..0451fb0 100644 --- a/tasklib/task.py +++ b/tasklib/task.py @@ -5,12 +5,14 @@ import json import logging import os import pytz +import re import six import sys import subprocess import tzlocal DATE_FORMAT = '%Y%m%dT%H%M%SZ' +DATE_FORMAT_CALC = '%Y-%m-%dT%H:%M:%S' REPR_OUTPUT_SIZE = 10 PENDING = 'pending' COMPLETED = 'completed' @@ -21,6 +23,7 @@ VERSION_2_3_0 = six.u('2.3.0') VERSION_2_4_0 = six.u('2.4.0') VERSION_2_4_1 = six.u('2.4.1') VERSION_2_4_2 = six.u('2.4.2') +VERSION_2_4_3 = six.u('2.4.3') logger = logging.getLogger(__name__) local_zone = tzlocal.get_localzone() @@ -88,6 +91,9 @@ class SerializingObject(object): to raise ValueError. """ + def __init__(self, warrior): + self.warrior = warrior + def _deserialize(self, key, value): hydrate_func = getattr(self, 'deserialize_{0}'.format(key), lambda x: x if x != '' else None) @@ -231,8 +237,15 @@ class SerializingObject(object): return ','.join(task['uuid'] for task in value) def deserialize_depends(self, raw_uuids): - raw_uuids = raw_uuids or '' # Convert None to empty string - uuids = raw_uuids.split(',') + raw_uuids = raw_uuids or [] # Convert None to empty list + + # TW 2.4.4 encodes list of dependencies as a single string + if type(raw_uuids) is not list: + uuids = raw_uuids.split(',') + # TW 2.4.5 and later exports them as a list, no conversion needed + else: + uuids = raw_uuids + return set(self.warrior.tasks.get(uuid=uuid) for uuid in uuids if uuid) def datetime_normalizer(self, value): @@ -250,13 +263,26 @@ class SerializingObject(object): # Convert to local midnight value_full = datetime.datetime.combine(value, datetime.time.min) localized = local_zone.localize(value_full) - elif isinstance(value, datetime.datetime) and value.tzinfo is None: - # Convert to localized datetime object - localized = local_zone.localize(value) + elif isinstance(value, datetime.datetime): + if value.tzinfo is None: + # Convert to localized datetime object + localized = local_zone.localize(value) + else: + # If the value is already localized, there is no need to change + # time zone at this point. Also None is a valid value too. + localized = value + elif (isinstance(value, six.string_types) + and self.warrior.version >= VERSION_2_4_0): + # For strings, use 'task calc' to evaluate the string to datetime + # available since TW 2.4.0 + args = value.split() + result = self.warrior.execute_command(['calc'] + args) + naive = datetime.datetime.strptime(result[0], DATE_FORMAT_CALC) + localized = local_zone.localize(naive) else: - # If the value is already localized, there is no need to change - # time zone at this point. Also None is a valid value too. - localized = value + raise ValueError("Provided value could not be converted to " + "datetime, its type is not supported: {}" + .format(type(value))) return localized @@ -279,7 +305,7 @@ class TaskResource(SerializingObject): # are not propagated. self._original_data = copy.deepcopy(self._data) - def _update_data(self, data, update_original=False): + def _update_data(self, data, update_original=False, remove_missing=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 @@ -288,6 +314,11 @@ class TaskResource(SerializingObject): self._data.update(dict((key, self._deserialize(key, value)) for key, value in data.items())) + # In certain situations, we want to treat missing keys as removals + if remove_missing: + for key in set(self._data.keys()) - set(data.keys()): + self._data[key] = None + if update_original: self._original_data = copy.deepcopy(self._data) @@ -364,6 +395,7 @@ class TaskAnnotation(TaskResource): def __init__(self, task, data={}): self.task = task self._load_data(data) + super(TaskAnnotation, self).__init__(task.warrior) def remove(self): self.task.remove_annotation(self) @@ -397,6 +429,18 @@ class Task(TaskResource): """ pass + class ActiveTask(Exception): + """ + Raised when the operation cannot be performed on the active task. + """ + pass + + class InactiveTask(Exception): + """ + Raised when the operation cannot be performed on an inactive task. + """ + pass + class NotSaved(Exception): """ Raised when the operation cannot be performed on the task, because @@ -439,12 +483,13 @@ class Task(TaskResource): # If this is a on-modify event, we are provided with additional # line of input, which provides updated data if modify: - task._update_data(json.loads(input_file.readline().strip())) + task._update_data(json.loads(input_file.readline().strip()), + remove_missing=True) return task def __init__(self, warrior, **kwargs): - self.warrior = warrior + super(Task, self).__init__(warrior) # Check that user is not able to set read-only value in __init__ for key in kwargs.keys(): @@ -499,6 +544,10 @@ class Task(TaskResource): def pending(self): return self['status'] == six.text_type('pending') + @property + def active(self): + return self['start'] is not None + @property def saved(self): return self['uuid'] is not None or self['id'] is not None @@ -537,7 +586,7 @@ class Task(TaskResource): if self.warrior.version < VERSION_2_4_0: return self._data['description'] else: - return "description:'{0}'".format(self._data['description'] or '') + return six.u("description:'{0}'").format(self._data['description'] or '') def delete(self): if not self.saved: @@ -565,12 +614,29 @@ class Task(TaskResource): raise Task.CompletedTask("Cannot start a completed task") elif self.deleted: raise Task.DeletedTask("Deleted task cannot be started") + elif self.active: + raise Task.ActiveTask("Task is already active") self.warrior.execute_command([self['uuid'], 'start']) # Refresh the status again, so that we have updated info stored self.refresh(only_fields=['status', 'start']) + def stop(self): + if not self.saved: + raise Task.NotSaved("Task needs to be saved before it can be stopped") + + # Refresh, and raise exception if task is already completed/deleted + self.refresh(only_fields=['status']) + + if not self.active: + raise Task.InactiveTask("Cannot stop an inactive task") + + self.warrior.execute_command([self['uuid'], 'stop']) + + # Refresh the status again, so that we have updated info stored + self.refresh(only_fields=['status', 'start']) + def done(self): if not self.saved: raise Task.NotSaved("Task needs to be saved before it can be completed") @@ -583,6 +649,10 @@ class Task(TaskResource): elif self.deleted: raise Task.DeletedTask("Deleted task cannot be completed") + # Older versions of TW do not stop active task at completion + if self.warrior.version < VERSION_2_4_0 and self.active: + self.stop() + self.warrior.execute_command([self['uuid'], 'done']) # Refresh the status again, so that we have updated info stored @@ -607,12 +677,18 @@ class Task(TaskResource): "task: %s" % '\n'.join(id_lines)) # Circumvent the ID storage, since ID is considered read-only - self._data['id'] = int(id_lines[0].split(' ')[2].rstrip('.')) + identifier = id_lines[0].split(' ')[2].rstrip('.') + + # Identifier can be either ID or UUID for completed tasks + try: + self._data['id'] = int(identifier) + except ValueError: + self._data['uuid'] = identifier # Refreshing is very important here, as not only modification time # is updated, but arbitrary attribute may have changed due hooks # altering the data before saving - self.refresh() + self.refresh(after_save=True) def add_annotation(self, annotation): if not self.saved: @@ -645,9 +721,9 @@ class Task(TaskResource): if serialized_value is '': escaped_serialized_value = '' else: - escaped_serialized_value = "'{0}'".format(serialized_value) + escaped_serialized_value = six.u("'{0}'").format(serialized_value) - format_default = lambda: "{0}:{1}".format(field, + format_default = lambda: six.u("{0}:{1}").format(field, escaped_serialized_value) format_func = getattr(self, 'format_{0}'.format(field), @@ -668,7 +744,7 @@ class Task(TaskResource): return args - def refresh(self, only_fields=[]): + def refresh(self, only_fields=None, after_save=False): # Raise error when trying to refresh a task that has not been saved if not self.saved: raise Task.NotSaved("Task needs to be saved to be refreshed") @@ -677,7 +753,39 @@ class Task(TaskResource): # of newly saved tasks. Any other place in the code is fine # with using UUID only. args = [self['uuid'] or self['id'], 'export'] - new_data = json.loads(self.warrior.execute_command(args)[0]) + output = self.warrior.execute_command(args) + + def valid(output): + return len(output) == 1 and output[0].startswith('{') + + # For older TW versions attempt to uniquely locate the task + # using the data we have if it has been just saved. + # This can happen when adding a completed task on older TW versions. + if (not valid(output) and self.warrior.version < six.text_type(u'2.4.5') + and after_save): + + # Make a copy, removing ID and UUID. It's most likely invalid + # (ID 0) if it failed to match a unique task. + data = copy.deepcopy(self._data) + data.pop('id', None) + data.pop('uuid', None) + + taskfilter = TaskFilter(self.warrior) + for key, value in data.items(): + taskfilter.add_filter_param(key, value) + + output = self.warrior.execute_command(['export', '--'] + + taskfilter.get_filter_params()) + + # If more than 1 task has been matched still, raise an exception + if not valid(output): + raise TaskWarriorException( + "Unique identifiers {0} with description: {1} matches " + "multiple tasks: {2}".format( + self['uuid'] or self['id'], self['description'], output) + ) + + new_data = json.loads(output[0]) if only_fields: to_update = dict( [(k, new_data.get(k)) for k in only_fields]) @@ -690,8 +798,9 @@ class TaskFilter(SerializingObject): A set of parameters to filter the task list with. """ - def __init__(self, filter_params=[]): - self.filter_params = filter_params + def __init__(self, warrior, filter_params=None): + self.filter_params = filter_params or [] + super(TaskFilter, self).__init__(warrior) def add_filter(self, filter_str): self.filter_params.append(filter_str) @@ -717,16 +826,18 @@ class TaskFilter(SerializingObject): # We enforce equality match by using 'is' (or 'none') modifier # Without using this syntax, filter fails due to TW-1479 - modifier = '.is' if value else '.none' - key = key + modifier if '.' not in key else key + # which is, however, fixed in 2.4.5 + if self.warrior.version < six.text_type(u'2.5.0'): + modifier = '.is' if value else '.none' + key = key + modifier if '.' not in key else key - self.filter_params.append("{0}:{1}".format(key, value)) + self.filter_params.append(six.u("{0}:{1}").format(key, value)) def get_filter_params(self): return [f for f in self.filter_params if f] def clone(self): - c = self.__class__() + c = self.__class__(self.warrior) c.filter_params = list(self.filter_params) return c @@ -739,7 +850,7 @@ class TaskQuerySet(object): def __init__(self, warrior=None, filter_obj=None): self.warrior = warrior self._result_cache = None - self.filter_obj = filter_obj or TaskFilter() + self.filter_obj = filter_obj or TaskFilter(warrior) def __deepcopy__(self, memo): """ @@ -842,8 +953,7 @@ class TaskQuerySet(object): class TaskWarrior(object): - def __init__(self, data_location='~/.task', create=True, taskrc_location='~/.taskrc'): - data_location = os.path.expanduser(data_location) + def __init__(self, data_location=None, create=True, taskrc_location='~/.taskrc'): self.taskrc_location = os.path.expanduser(taskrc_location) # If taskrc does not exist, pass / to use defaults and avoid creating @@ -851,16 +961,28 @@ class TaskWarrior(object): if not os.path.exists(self.taskrc_location): self.taskrc_location = '/' - if create and not os.path.exists(data_location): - os.makedirs(data_location) + self.version = self._get_version() self.config = { - 'data.location': os.path.expanduser(data_location), 'confirmation': 'no', 'dependency.confirmation': 'no', # See TW-1483 or taskrc man page 'recurrence.confirmation': 'no', # Necessary for modifying R tasks + + # Defaults to on since 2.4.5, we expect off during parsing + 'json.array': 'off', + + # 2.4.3 onwards supports 0 as infite bulk, otherwise set just + # arbitrary big number which is likely to be large enough + 'bulk': 0 if self.version >= VERSION_2_4_3 else 100000, } + + # Set data.location override if passed via kwarg + if data_location is not None: + data_location = os.path.expanduser(data_location) + if create and not os.path.exists(data_location): + os.makedirs(data_location) + self.config['data.location'] = data_location + self.tasks = TaskQuerySet(self) - self.version = self._get_version() def _get_command_args(self, args, config_override={}): command_args = ['task', 'rc:{0}'.format(self.taskrc_location)] @@ -868,7 +990,7 @@ class TaskWarrior(object): config.update(config_override) for item in config.items(): command_args.append('rc.{0}={1}'.format(*item)) - command_args.extend(map(str, args)) + command_args.extend(map(six.text_type, args)) return command_args def _get_version(self): @@ -879,7 +1001,24 @@ class TaskWarrior(object): stdout, stderr = [x.decode('utf-8') for x in p.communicate()] return stdout.strip('\n') - def execute_command(self, args, config_override={}, allow_failure=True): + def get_config(self): + raw_output = self.execute_command( + ['show'], + config_override={'verbose': 'nothing'} + ) + + config = dict() + config_regex = re.compile(r'^(?P[^\s]+)\s+(?P[^\s].+$)') + + for line in raw_output: + match = config_regex.match(line) + if match: + config[match.group('key')] = match.group('value').strip() + + return config + + def execute_command(self, args, config_override={}, allow_failure=True, + return_all=False): command_args = self._get_command_args( args, config_override=config_override) logger.debug(' '.join(command_args)) @@ -892,7 +1031,14 @@ class TaskWarrior(object): else: error_msg = stdout.strip() raise TaskWarriorException(error_msg) - return stdout.strip().split('\n') + + # Return all whole triplet only if explicitly asked for + if not return_all: + return stdout.rstrip().split('\n') + else: + return (stdout.rstrip().split('\n'), + stderr.rstrip().split('\n'), + p.returncode) def enforce_recurrence(self): # Run arbitrary report command which will trigger generation