+from __future__ import print_function
import copy
import datetime
import json
import logging
import os
-import subprocess
+import pytz
+import six
+import sys
+import tzlocal
+
+from backends import TaskWarrior, TaskWarriorException
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'
logger = logging.getLogger(__name__)
+local_zone = tzlocal.get_localzone()
-class TaskWarriorException(Exception):
- pass
+class ReadOnlyDictView(object):
+ """
+ Provides simplified read-only view upon dict object.
+ """
+ def __init__(self, viewed_dict):
+ self.viewed_dict = viewed_dict
-class Task(object):
+ def __getitem__(self, key):
+ return copy.deepcopy(self.viewed_dict.__getitem__(key))
- class DoesNotExist(Exception):
- pass
+ def __contains__(self, k):
+ return self.viewed_dict.__contains__(k)
- def __init__(self, warrior, data={}):
- self.warrior = warrior
- self._data = data
- self._modified_fields = set()
+ def __iter__(self):
+ for value in self.viewed_dict:
+ yield copy.deepcopy(value)
- def __unicode__(self):
- return self['description']
+ def __len__(self):
+ return len(self.viewed_dict)
- def __getitem__(self, key):
+ def get(self, key, default=None):
+ return copy.deepcopy(self.viewed_dict.get(key, default))
+
+ def items(self):
+ return [copy.deepcopy(v) for v in self.viewed_dict.items()]
+
+ def values(self):
+ return [copy.deepcopy(v) for v in self.viewed_dict.values()]
+
+
+class SerializingObject(object):
+ """
+ Common ancestor for TaskResource & TaskFilter, since they both
+ need to serialize arguments.
+
+ Serializing method should hold the following contract:
+ - any empty value (meaning removal of the attribute)
+ is deserialized into a empty string
+ - None denotes a empty value for any attribute
+
+ Deserializing method should hold the following contract:
+ - None denotes a empty value for any attribute (however,
+ this is here as a safeguard, TaskWarrior currently does
+ not export empty-valued attributes) if the attribute
+ is not iterable (e.g. list or set), in which case
+ a empty iterable should be used.
+
+ Normalizing methods should hold the following contract:
+ - They are used to validate and normalize the user input.
+ Any attribute value that comes from the user (during Task
+ initialization, assignign values to Task attributes, or
+ filtering by user-provided values of attributes) is first
+ validated and normalized using the normalize_{key} method.
+ - If validation or normalization fails, normalizer is expected
+ 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)
- return hydrate_func(self._data.get(key))
+ lambda x: x if x != '' else None)
+ return hydrate_func(value)
- def __setitem__(self, key, value):
+ def _serialize(self, key, value):
dehydrate_func = getattr(self, 'serialize_{0}'.format(key),
+ lambda x: x if x is not None else '')
+ return dehydrate_func(value)
+
+ def _normalize(self, key, value):
+ """
+ Use normalize_<key> methods to normalize user input. Any user
+ input will be normalized at the moment it is used as filter,
+ or entered as a value of Task attribute.
+ """
+
+ # None value should not be converted by normalizer
+ if value is None:
+ return None
+
+ normalize_func = getattr(self, 'normalize_{0}'.format(key),
lambda x: x)
- self._data[key] = dehydrate_func(value)
- self._modified_fields.add(key)
- def serialize_due(self, date):
+ return normalize_func(value)
+
+ def timestamp_serializer(self, date):
+ if not date:
+ return ''
+
+ # Any serialized timestamp should be localized, we need to
+ # convert to UTC before converting to string (DATE_FORMAT uses UTC)
+ date = date.astimezone(pytz.utc)
+
return date.strftime(DATE_FORMAT)
- def deserialize_due(self, date_str):
+ def timestamp_deserializer(self, date_str):
if not date_str:
return None
- return datetime.datetime.strptime(date_str, DATE_FORMAT)
- def serialize_annotations(self, annotations):
- ann_list = list(annotations)
- for ann in ann_list:
- ann['entry'] = ann['entry'].strftime(DATE_FORMAT)
- return ann_list
+ # Return timestamp localized in the local zone
+ naive_timestamp = datetime.datetime.strptime(date_str, DATE_FORMAT)
+ localized_timestamp = pytz.utc.localize(naive_timestamp)
+ return localized_timestamp.astimezone(local_zone)
- def deserialize_annotations(self, annotations):
- ann_list = list(annotations)
- for ann in ann_list:
- ann['entry'] = datetime.datetime.strptime(
- ann['entry'], DATE_FORMAT)
- return ann_list
+ def serialize_entry(self, value):
+ return self.timestamp_serializer(value)
- def deserialize_tags(self, tags):
- if isinstance(tags, basestring):
- return tags.split(',') if tags else []
- return tags
+ def deserialize_entry(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_entry(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_modified(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_modified(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_modified(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_start(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_start(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_start(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_end(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_end(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_end(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_due(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_due(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_due(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_scheduled(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_scheduled(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_scheduled(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_until(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_until(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_until(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_wait(self, value):
+ return self.timestamp_serializer(value)
+
+ def deserialize_wait(self, value):
+ return self.timestamp_deserializer(value)
+
+ def normalize_wait(self, value):
+ return self.datetime_normalizer(value)
+
+ def serialize_annotations(self, value):
+ value = value if value is not None else []
+
+ # This may seem weird, but it's correct, we want to export
+ # a list of dicts as serialized value
+ serialized_annotations = [json.loads(annotation.export_data())
+ for annotation in value]
+ return serialized_annotations if serialized_annotations else ''
+
+ def deserialize_annotations(self, data):
+ return [TaskAnnotation(self, d) for d in data] if data else []
def serialize_tags(self, tags):
return ','.join(tags) if tags else ''
+ def deserialize_tags(self, tags):
+ if isinstance(tags, six.string_types):
+ return tags.split(',') if tags else []
+ return tags or []
+
+ def serialize_depends(self, value):
+ # Return the list of uuids
+ value = value if value is not None else set()
+ return ','.join(task['uuid'] for task in value)
+
+ def deserialize_depends(self, raw_uuids):
+ 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):
+ """
+ Normalizes date/datetime value (considered to come from user input)
+ to localized datetime value. Following conversions happen:
+
+ naive date -> localized datetime with the same date, and time=midnight
+ naive datetime -> localized datetime with the same value
+ localized datetime -> localized datetime (no conversion)
+ """
+
+ if (isinstance(value, datetime.date)
+ and not isinstance(value, datetime.datetime)):
+ # Convert to local midnight
+ value_full = datetime.datetime.combine(value, datetime.time.min)
+ localized = local_zone.localize(value_full)
+ 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:
+ raise ValueError("Provided value could not be converted to "
+ "datetime, its type is not supported: {}"
+ .format(type(value)))
+
+ return localized
+
+ def normalize_uuid(self, value):
+ # Enforce sane UUID
+ if not isinstance(value, six.string_types) or value == '':
+ raise ValueError("UUID must be a valid non-empty string, "
+ "not: {}".format(value))
+
+ return value
+
+
+class TaskResource(SerializingObject):
+ read_only_fields = []
+
+ def _load_data(self, data):
+ self._data = dict((key, self._deserialize(key, value))
+ for key, value in data.items())
+ # We need to use a copy for original data, so that changes
+ # are not propagated.
+ self._original_data = copy.deepcopy(self._data)
+
+ 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
+ original_data dict is updated as well.
+ """
+ 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)
+
+
+ def __getitem__(self, key):
+ # This is a workaround to make TaskResource non-iterable
+ # over simple index-based iteration
+ try:
+ int(key)
+ raise StopIteration
+ except ValueError:
+ pass
+
+ if key not in self._data:
+ self._data[key] = self._deserialize(key, None)
+
+ return self._data.get(key)
+
+ def __setitem__(self, key, value):
+ if key in self.read_only_fields:
+ raise RuntimeError('Field \'%s\' is read-only' % key)
+
+ # Normalize the user input before saving it
+ value = self._normalize(key, value)
+ self._data[key] = value
+
+ def __str__(self):
+ s = six.text_type(self.__unicode__())
+ if not six.PY3:
+ s = s.encode('utf-8')
+ return s
+
+ def __repr__(self):
+ return str(self)
+
+ def export_data(self):
+ """
+ Exports current data contained in the Task as JSON
+ """
+
+ # We need to remove spaces for TW-1504, use custom separators
+ data_tuples = ((key, self._serialize(key, value))
+ for key, value in six.iteritems(self._data))
+
+ # Empty string denotes empty serialized value, we do not want
+ # to pass that to TaskWarrior.
+ data_tuples = filter(lambda t: t[1] is not '', data_tuples)
+ data = dict(data_tuples)
+ return json.dumps(data, separators=(',',':'))
+
+ @property
+ def _modified_fields(self):
+ writable_fields = set(self._data.keys()) - set(self.read_only_fields)
+ for key in writable_fields:
+ new_value = self._data.get(key)
+ old_value = self._original_data.get(key)
+
+ # Make sure not to mark data removal as modified field if the
+ # field originally had some empty value
+ if key in self._data and not new_value and not old_value:
+ continue
+
+ if new_value != old_value:
+ yield key
+
+ @property
+ def modified(self):
+ return bool(list(self._modified_fields))
+
+
+class TaskAnnotation(TaskResource):
+ read_only_fields = ['entry', 'description']
+
+ def __init__(self, task, data=None):
+ self.task = task
+ self._load_data(data or dict())
+ super(TaskAnnotation, self).__init__(task.warrior)
+
+ def remove(self):
+ self.task.remove_annotation(self)
+
+ def __unicode__(self):
+ return self['description']
+
+ def __eq__(self, other):
+ # consider 2 annotations equal if they belong to the same task, and
+ # their data dics are the same
+ return self.task == other.task and self._data == other._data
+
+ __repr__ = __unicode__
+
+
+class Task(TaskResource):
+ read_only_fields = ['id', 'entry', 'urgency', 'uuid', 'modified']
+
+ class DoesNotExist(Exception):
+ pass
+
+ class CompletedTask(Exception):
+ """
+ Raised when the operation cannot be performed on the completed task.
+ """
+ pass
+
+ class DeletedTask(Exception):
+ """
+ Raised when the operation cannot be performed on the deleted task.
+ """
+ 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
+ it has not been saved to TaskWarrior yet.
+ """
+ pass
+
+ @classmethod
+ def from_input(cls, input_file=sys.stdin, modify=None, warrior=None):
+ """
+ Creates a Task object, directly from the stdin, by reading one line.
+ If modify=True, two lines are used, first line interpreted as the
+ original state of the Task object, and second line as its new,
+ modified value. This is consistent with the TaskWarrior's hook
+ system.
+
+ Object created by this method should not be saved, deleted
+ or refreshed, as t could create a infinite loop. For this
+ reason, TaskWarrior instance is set to None.
+
+ Input_file argument can be used to specify the input file,
+ but defaults to sys.stdin.
+ """
+
+ # Detect the hook type if not given directly
+ name = os.path.basename(sys.argv[0])
+ modify = name.startswith('on-modify') if modify is None else modify
+
+ # Create the TaskWarrior instance if none passed
+ if warrior is None:
+ hook_parent_dir = os.path.dirname(os.path.dirname(sys.argv[0]))
+ warrior = TaskWarrior(data_location=hook_parent_dir)
+
+ # TaskWarrior instance is set to None
+ task = cls(warrior)
+
+ # Load the data from the input
+ task._load_data(json.loads(input_file.readline().strip()))
+
+ # 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()),
+ remove_missing=True)
+
+ return task
+
+ def __init__(self, warrior, **kwargs):
+ super(Task, self).__init__(warrior)
+
+ # Check that user is not able to set read-only value in __init__
+ for key in kwargs.keys():
+ if key in self.read_only_fields:
+ raise RuntimeError('Field \'%s\' is read-only' % key)
+
+ # 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
+
+ # Rather unfortunate syntax due to python2.6 comaptiblity
+ self._data = dict((key, self._normalize(key, value))
+ for (key, value) in six.iteritems(kwargs))
+ self._original_data = copy.deepcopy(self._data)
+
+ # Provide read only access to the original data
+ self.original = ReadOnlyDictView(self._original_data)
+
+ 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 completed(self):
+ return self['status'] == six.text_type('completed')
+
+ @property
+ def deleted(self):
+ return self['status'] == six.text_type('deleted')
+
+ @property
+ def waiting(self):
+ return self['status'] == six.text_type('waiting')
+
+ @property
+ 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
+
+ def serialize_depends(self, cur_dependencies):
+ # Check that all the tasks are saved
+ for task in (cur_dependencies or set()):
+ if not task.saved:
+ raise Task.NotSaved('Task \'%s\' needs to be saved before '
+ 'it can be set as dependency.' % task)
+
+ return super(Task, self).serialize_depends(cur_dependencies)
+
+ 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 = self._original_data.get('depends', set())
+
+ 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 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 six.u("description:'{0}'").format(self._data['description'] or '')
+
def delete(self):
- self.warrior.execute_command([self['id'], 'delete'], config_override={
- 'confirmation': 'no',
- })
+ if not self.saved:
+ raise Task.NotSaved("Task needs to be saved before it can be deleted")
+
+ # Refresh the status, and raise exception if the task is deleted
+ self.refresh(only_fields=['status'])
+
+ if self.deleted:
+ raise Task.DeletedTask("Task was already deleted")
+
+ self.warrior.execute_command([self['uuid'], 'delete'])
+
+ # Refresh the status again, so that we have updated info stored
+ self.refresh(only_fields=['status', 'start', 'end'])
+
+ def start(self):
+ if not self.saved:
+ raise Task.NotSaved("Task needs to be saved before it can be started")
+
+ # Refresh, and raise exception if task is already completed/deleted
+ self.refresh(only_fields=['status'])
+
+ if self.completed:
+ 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):
- self.warrior.execute_command([self['id'], 'done'])
+ if not self.saved:
+ raise Task.NotSaved("Task needs to be saved before it can be completed")
+
+ # Refresh, and raise exception if task is already completed/deleted
+ self.refresh(only_fields=['status'])
+
+ if self.completed:
+ raise Task.CompletedTask("Cannot complete a completed task")
+ 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
+ self.refresh(only_fields=['status', 'start', 'end'])
def save(self):
- args = [self['id'], 'modify'] if self['id'] else ['add']
- args.extend(self._get_modified_fields_as_args())
+ if self.saved and not self.modified:
+ return
+
+ # All the actual work is done by the backend
+ self.backend.save_task(self)
+
+ def add_annotation(self, annotation):
+ if not self.saved:
+ raise Task.NotSaved("Task needs to be saved to add annotation")
+
+ args = [self['uuid'], 'annotate', annotation]
self.warrior.execute_command(args)
- self._modified_fields.clear()
+ self.refresh(only_fields=['annotations'])
+
+ def remove_annotation(self, annotation):
+ if not self.saved:
+ raise Task.NotSaved("Task needs to be saved to remove annotation")
+
+ if isinstance(annotation, TaskAnnotation):
+ annotation = annotation['description']
+ args = [self['uuid'], 'denotate', annotation]
+ self.warrior.execute_command(args)
+ self.refresh(only_fields=['annotations'])
def _get_modified_fields_as_args(self):
args = []
- for field in self._modified_fields:
- args.append('{}:{}'.format(field, self._data[field]))
- return args
- __repr__ = __unicode__
+ def add_field(field):
+ # Add the output of format_field method to args list (defaults to
+ # field:value)
+ serialized_value = self._serialize(field, self._data[field])
+
+ # Empty values should not be enclosed in quotation marks, see
+ # TW-1510
+ if serialized_value is '':
+ escaped_serialized_value = ''
+ else:
+ escaped_serialized_value = six.u("'{0}'").format(serialized_value)
+ format_default = lambda: six.u("{0}:{1}").format(field,
+ escaped_serialized_value)
-class TaskFilter(object):
+ format_func = getattr(self, 'format_{0}'.format(field),
+ format_default)
+
+ args.append(format_func())
+
+ # If we're modifying saved task, simply pass on all modified fields
+ if self.saved:
+ for field in self._modified_fields:
+ add_field(field)
+ # For new tasks, pass all fields that make sense
+ else:
+ for field in self._data.keys():
+ if field in self.read_only_fields:
+ continue
+ add_field(field)
+
+ return args
+
+ 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")
+
+ # We need to use ID as backup for uuid here for the refreshes
+ # of newly saved tasks. Any other place in the code is fine
+ # with using UUID only.
+ args = [self['uuid'] or self['id'], 'export']
+ 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 < VERSION_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])
+ self._update_data(to_update, update_original=True)
+ else:
+ self._load_data(new_data)
+
+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)
def add_filter_param(self, key, value):
key = key.replace('__', '.')
- self.filter_params.append('{0}:{1}'.format(key, value))
+
+ # Replace the value with empty string, since that is the
+ # convention in TW for empty values
+ attribute_key = key.split('.')[0]
+
+ # Since this is user input, we need to normalize before we serialize
+ value = self._normalize(attribute_key, value)
+ value = self._serialize(attribute_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:
+ # Surround value with aphostrophes unless it's a empty string
+ value = "'%s'" % value if value else ''
+
+ # We enforce equality match by using 'is' (or 'none') modifier
+ # Without using this syntax, filter fails due to TW-1479
+ # which is, however, fixed in 2.4.5
+ if self.warrior.version < VERSION_2_4_5:
+ modifier = '.is' if value else '.none'
+ key = key + modifier if '.' not in key else key
+
+ 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
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):
"""
raise ValueError(
'get() returned more than one Task -- it returned {0}! '
'Lookup parameters were {1}'.format(num, kwargs))
-
-
-class TaskWarrior(object):
- def __init__(self, data_location='~/.task', create=True):
- data_location = os.path.expanduser(data_location)
- if create and not os.path.exists(data_location):
- os.makedirs(data_location)
- self.config = {
- 'data.location': os.path.expanduser(data_location),
- }
- self.tasks = TaskQuerySet(self)
-
- def _get_command_args(self, args, config_override={}):
- command_args = ['task', 'rc:/']
- config = self.config.copy()
- config.update(config_override)
- for item in config.items():
- command_args.append('rc.{0}={1}'.format(*item))
- command_args.extend(map(str, args))
- return command_args
-
- def execute_command(self, args, config_override={}):
- command_args = self._get_command_args(
- args, config_override=config_override)
- logger.debug(' '.join(command_args))
- p = subprocess.Popen(command_args, stdout=subprocess.PIPE,
- stderr=subprocess.PIPE)
- stdout, stderr = [x.decode() for x in p.communicate()]
- if p.returncode:
- if stderr.strip():
- error_msg = stderr.strip().splitlines()[-1]
- else:
- error_msg = stdout.strip()
- raise TaskWarriorException(error_msg)
- return stdout.strip().split('\n')
-
- def filter_tasks(self, filter_obj):
- args = ['export', '--'] + filter_obj.get_filter_params()
- tasks = []
- for line in self.execute_command(args):
- if line:
- data = line.strip(',')
- try:
- tasks.append(Task(self, json.loads(data)))
- except ValueError:
- raise TaskWarriorException('Invalid JSON: %s' % data)
- return tasks
-
- def merge_with(self, path, push=False):
- path = path.rstrip('/') + '/'
- self.execute_command(['merge', path], config_override={
- 'merge.autopush': 'yes' if push else 'no',
- })
-
- def undo(self):
- self.execute_command(['undo'], config_override={
- 'confirmation': 'no',
- })
projects / etc / taskwarrior.git / blobdiff