- TASK_VERSION=v2.4.2
- TASK_VERSION=v2.4.3
- TASK_VERSION=v2.4.4
- - TASK_VERSION=2.4.5
+ - TASK_VERSION=2.5.0
python:
- "2.6"
- "2.7"
# built documents.
#
# The short X.Y version.
-version = '0.10.0'
+version = '0.11.0'
# The full version, including alpha/beta/rc tags.
-release = '0.10.0'
+release = '0.11.0'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
By default, TaskWarrior uses configuration values stored in your .taskrc.
To see what configuration value overrides are passed to each executed
-task command, have a peek into ``config`` attribute of ``TaskWarrior`` object::
+task command, have a peek into ``overrides`` attribute of ``TaskWarrior`` object::
- >>> tw.config
+ >>> tw.overrides
{'confirmation': 'no', 'data.location': '/home/tbabej/.task'}
To pass your own configuration overrides, you just need to update this dictionary::
- >>> tw.config.update({'hooks': 'off'}) # tasklib will not trigger hooks
+ >>> tw.overrides.update({'hooks': 'off'}) # tasklib will not trigger hooks
Creating hook scripts
---------------------
from setuptools import setup, find_packages
-version = '0.10.0'
+install_requirements = ['six==1.5.2', 'pytz', 'tzlocal']
+
+version = '0.11.0'
+
+try:
+ import importlib
+except ImportError:
+ install_requirements.append('importlib')
setup(
name='tasklib',
packages=find_packages(),
include_package_data=True,
test_suite='tasklib.tests',
- install_requires=['six==1.5.2', 'pytz', 'tzlocal'],
+ install_requires=install_requirements,
classifiers=[
'Development Status :: 4 - Beta',
'Programming Language :: Python',
+from .backends import TaskWarrior
+from .task import Task
+from .serializing import local_zone
--- /dev/null
+import abc
+import copy
+import datetime
+import json
+import logging
+import os
+import re
+import six
+import subprocess
+
+from .task import Task, TaskQuerySet, ReadOnlyDictView
+from .filters import TaskWarriorFilter
+from .serializing import local_zone
+
+DATE_FORMAT_CALC = '%Y-%m-%dT%H:%M:%S'
+
+logger = logging.getLogger(__name__)
+
+
+class Backend(object):
+
+ @abc.abstractproperty
+ def filter_class(self):
+ """Returns the TaskFilter class used by this backend"""
+ pass
+
+ @abc.abstractmethod
+ def filter_tasks(self, filter_obj):
+ """Returns a list of Task objects matching the given filter"""
+ pass
+
+ @abc.abstractmethod
+ def save_task(self, task):
+ pass
+
+ @abc.abstractmethod
+ def delete_task(self, task):
+ pass
+
+ @abc.abstractmethod
+ def start_task(self, task):
+ pass
+
+ @abc.abstractmethod
+ def stop_task(self, task):
+ pass
+
+ @abc.abstractmethod
+ def complete_task(self, task):
+ pass
+
+ @abc.abstractmethod
+ def refresh_task(self, task, after_save=False):
+ """
+ Refreshes the given task. Returns new data dict with serialized
+ attributes.
+ """
+ pass
+
+ @abc.abstractmethod
+ def annotate_task(self, task, annotation):
+ pass
+
+ @abc.abstractmethod
+ def denotate_task(self, task, annotation):
+ pass
+
+ @abc.abstractmethod
+ def sync(self):
+ """Syncs the backend database with the taskd server"""
+ pass
+
+ def convert_datetime_string(self, value):
+ """
+ Converts TW syntax datetime string to a localized datetime
+ object. This method is not mandatory.
+ """
+ raise NotImplemented
+
+
+class TaskWarriorException(Exception):
+ pass
+
+
+class TaskWarrior(Backend):
+
+ VERSION_2_1_0 = six.u('2.1.0')
+ VERSION_2_2_0 = six.u('2.2.0')
+ 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')
+ VERSION_2_4_4 = six.u('2.4.4')
+ VERSION_2_4_5 = six.u('2.4.5')
+
+ 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
+ # dummy .taskrc file by TaskWarrior
+ if not os.path.exists(self.taskrc_location):
+ self.taskrc_location = '/'
+
+ self._config = None
+ self.version = self._get_version()
+ self.overrides = {
+ '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 >= self.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.overrides['data.location'] = data_location
+
+ self.tasks = TaskQuerySet(self)
+
+ def _get_command_args(self, args, config_override=None):
+ command_args = ['task', 'rc:{0}'.format(self.taskrc_location)]
+ overrides = self.overrides.copy()
+ overrides.update(config_override or dict())
+ for item in overrides.items():
+ command_args.append('rc.{0}={1}'.format(*item))
+ command_args.extend(map(six.text_type, args))
+ return command_args
+
+ def _get_version(self):
+ p = subprocess.Popen(
+ ['task', '--version'],
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE)
+ stdout, stderr = [x.decode('utf-8') for x in p.communicate()]
+ return stdout.strip('\n')
+
+ def _get_modified_task_fields_as_args(self, task):
+ args = []
+
+ def add_field(field):
+ # Add the output of format_field method to args list (defaults to
+ # field:value)
+ serialized_value = task._serialize(field, task._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 task: six.u("{0}:{1}").format(
+ field, escaped_serialized_value)
+
+ format_func = getattr(self, 'format_{0}'.format(field),
+ format_default)
+
+ args.append(format_func(task))
+
+ # If we're modifying saved task, simply pass on all modified fields
+ if task.saved:
+ for field in task._modified_fields:
+ add_field(field)
+ # For new tasks, pass all fields that make sense
+ else:
+ for field in task._data.keys():
+ if field in task.read_only_fields:
+ continue
+ add_field(field)
+
+ return args
+
+ def format_depends(self, task):
+ # 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 = task._original_data.get('depends', set())
+
+ added = task['depends'] - old_dependencies
+ removed = old_dependencies - task['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):
+ # Task version older than 2.4.0 ignores first word of the
+ # task description if description: prefix is used
+ if self.version < self.VERSION_2_4_0:
+ return task._data['description']
+ else:
+ return six.u("description:'{0}'").format(task._data['description'] or '')
+
+ def convert_datetime_string(self, value):
+
+ if self.version >= self.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.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
+
+ @property
+ def filter_class(self):
+ return TaskWarriorFilter
+
+ # Public interface
+
+ @property
+ def config(self):
+ # First, check if memoized information is available
+ if self._config:
+ return self._config
+
+ # If not, fetch the config using the 'show' command
+ raw_output = self.execute_command(
+ ['show'],
+ config_override={'verbose': 'nothing'}
+ )
+
+ config = dict()
+ config_regex = re.compile(r'^(?P<key>[^\s]+)\s+(?P<value>[^\s].+$)')
+
+ for line in raw_output:
+ match = config_regex.match(line)
+ if match:
+ config[match.group('key')] = match.group('value').strip()
+
+ # Memoize the config dict
+ self._config = ReadOnlyDictView(config)
+
+ return self._config
+
+ def execute_command(self, args, config_override=None, allow_failure=True,
+ return_all=False):
+ 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('utf-8') for x in p.communicate()]
+ if p.returncode and allow_failure:
+ if stderr.strip():
+ error_msg = stderr.strip()
+ else:
+ error_msg = stdout.strip()
+ raise TaskWarriorException(error_msg)
+
+ # 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
+ # of recurrent tasks.
+
+ # Only necessary for TW up to 2.4.1, fixed in 2.4.2.
+ if self.version < self.VERSION_2_4_2:
+ self.execute_command(['next'], allow_failure=False)
+
+ 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'])
+
+ # Backend interface implementation
+
+ def filter_tasks(self, filter_obj):
+ self.enforce_recurrence()
+ args = ['export'] + filter_obj.get_filter_params()
+ tasks = []
+ for line in self.execute_command(args):
+ if line:
+ data = line.strip(',')
+ try:
+ 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
+
+ def save_task(self, task):
+ """Save a task into TaskWarrior database using add/modify call"""
+
+ args = [task['uuid'], 'modify'] if task.saved else ['add']
+ args.extend(self._get_modified_task_fields_as_args(task))
+ output = self.execute_command(args)
+
+ # Parse out the new ID, if the task is being added for the first time
+ if not task.saved:
+ id_lines = [l for l in output if l.startswith('Created task ')]
+
+ # Complain loudly if it seems that more tasks were created
+ # Should not happen
+ if len(id_lines) != 1 or len(id_lines[0].split(' ')) != 3:
+ raise TaskWarriorException("Unexpected output when creating "
+ "task: %s" % '\n'.join(id_lines))
+
+ # Circumvent the ID storage, since ID is considered read-only
+ identifier = id_lines[0].split(' ')[2].rstrip('.')
+
+ # Identifier can be either ID or UUID for completed tasks
+ try:
+ task._data['id'] = int(identifier)
+ except ValueError:
+ task._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
+ task.refresh(after_save=True)
+
+ def delete_task(self, task):
+ self.execute_command([task['uuid'], 'delete'])
+
+ def start_task(self, task):
+ self.execute_command([task['uuid'], 'start'])
+
+ def stop_task(self, task):
+ self.execute_command([task['uuid'], 'stop'])
+
+ def complete_task(self, task):
+ # Older versions of TW do not stop active task at completion
+ if self.version < self.VERSION_2_4_0 and task.active:
+ task.stop()
+
+ self.execute_command([task['uuid'], 'done'])
+
+ def annotate_task(self, task, annotation):
+ args = [task['uuid'], 'annotate', annotation]
+ self.execute_command(args)
+
+ def denotate_task(self, task, annotation):
+ args = [task['uuid'], 'denotate', annotation]
+ self.execute_command(args)
+
+ def refresh_task(self, task, after_save=False):
+ # 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 = [task['uuid'] or task['id'], 'export']
+ output = self.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.version < self.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(task._data)
+ data.pop('id', None)
+ data.pop('uuid', None)
+
+ taskfilter = self.filter_class(self)
+ for key, value in data.items():
+ taskfilter.add_filter_param(key, value)
+
+ output = self.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(
+ task['uuid'] or task['id'], task['description'], output)
+ )
+
+ return json.loads(output[0])
+
+ def sync(self):
+ self.execute_command(['sync'])
--- /dev/null
+import abc
+import six
+from .serializing import SerializingObject
+
+
+class TaskFilter(object):
+ """
+ Abstract base class that defines interface of a TaskFilter.
+ """
+
+ @abc.abstractmethod
+ def add_filter(self, arg):
+ """
+ Processes an non-keyword filter.
+ """
+ pass
+
+ @abc.abstractmethod
+ def add_filter_param(self, key, value):
+ """
+ Processes a keyword filter.
+ """
+ pass
+
+ @abc.abstractmethod
+ def clone(self):
+ """
+ Returns a new deep copy of itself.
+ """
+ pass
+
+
+class TaskWarriorFilter(TaskFilter, SerializingObject):
+ """
+ A set of parameters to filter the task list with.
+ """
+
+ def __init__(self, backend, filter_params=None):
+ self.filter_params = filter_params or []
+ super(TaskFilter, self).__init__(backend)
+
+ def add_filter(self, filter_str):
+ self.filter_params.append(filter_str)
+
+ def add_filter_param(self, key, value):
+ key = key.replace('__', '.')
+
+ # 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.backend.version < self.backend.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__(self.backend)
+ c.filter_params = list(self.filter_params)
+ return c
--- /dev/null
+import datetime
+import importlib
+import json
+import pytz
+import six
+import tzlocal
+
+DATE_FORMAT = '%Y%m%dT%H%M%SZ'
+local_zone = tzlocal.get_localzone()
+
+
+class SerializingObject(object):
+ """
+ Common ancestor for TaskResource & TaskWarriorFilter, 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, backend):
+ self.backend = backend
+
+ def _deserialize(self, key, value):
+ hydrate_func = getattr(self, 'deserialize_{0}'.format(key),
+ lambda x: x if x != '' else None)
+ return hydrate_func(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)
+
+ 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 timestamp_deserializer(self, date_str):
+ if not date_str:
+ return None
+
+ # 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 serialize_entry(self, value):
+ return self.timestamp_serializer(value)
+
+ 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):
+ task_module = importlib.import_module('tasklib.task')
+ TaskAnnotation = getattr(task_module, 'TaskAnnotation')
+ 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.backend.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):
+ localized = self.backend.convert_datetime_string(value)
+ 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
from __future__ import print_function
import copy
-import datetime
+import importlib
import json
import logging
import os
-import pytz
-import re
import six
import sys
-import subprocess
-import tzlocal
+
+from .serializing import SerializingObject
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'
-VERSION_2_1_0 = six.u('2.1.0')
-VERSION_2_2_0 = six.u('2.2.0')
-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()
-
-
-class TaskWarriorException(Exception):
- pass
class ReadOnlyDictView(object):
def __len__(self):
return len(self.viewed_dict)
+ def __unicode__(self):
+ return six.u('ReadOnlyDictView: {0}'.format(repr(self.viewed_dict)))
+
+ __repr__ = __unicode__
+
def get(self, key, default=None):
return copy.deepcopy(self.viewed_dict.get(key, default))
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 if x != '' else None)
- return hydrate_func(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)
-
- 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 timestamp_deserializer(self, date_str):
- if not date_str:
- return None
-
- # 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 serialize_entry(self, value):
- return self.timestamp_serializer(value)
-
- 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 string
- uuids = raw_uuids.split(',')
- 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 = []
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
# 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=(',',':'))
+ return json.dumps(data, separators=(',', ':'))
@property
def _modified_fields(self):
class TaskAnnotation(TaskResource):
read_only_fields = ['entry', 'description']
- def __init__(self, task, data={}):
+ def __init__(self, task, data=None):
self.task = task
- self._load_data(data)
- super(TaskAnnotation, self).__init__(task.warrior)
+ self._load_data(data or dict())
+ super(TaskAnnotation, self).__init__(task.backend)
def remove(self):
self.task.remove_annotation(self)
pass
@classmethod
- def from_input(cls, input_file=sys.stdin, modify=None, warrior=None):
+ def from_input(cls, input_file=sys.stdin, modify=None, backend=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
modify = name.startswith('on-modify') if modify is None else modify
# Create the TaskWarrior instance if none passed
- if warrior is None:
+ if backend is None:
+ backends = importlib.import_module('tasklib.backends')
hook_parent_dir = os.path.dirname(os.path.dirname(sys.argv[0]))
- warrior = TaskWarrior(data_location=hook_parent_dir)
+ backend = backends.TaskWarrior(data_location=hook_parent_dir)
# TaskWarrior instance is set to None
- task = cls(warrior)
+ task = cls(backend)
# Load the data from the input
task._load_data(json.loads(input_file.readline().strip()))
return task
- def __init__(self, warrior, **kwargs):
- super(Task, self).__init__(warrior)
+ def __init__(self, backend, **kwargs):
+ super(Task, self).__init__(backend)
# Check that user is not able to set read-only value in __init__
for key in kwargs.keys():
# 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 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):
if not self.saved:
raise Task.NotSaved("Task needs to be saved before it can be deleted")
if self.deleted:
raise Task.DeletedTask("Task was already deleted")
- self.warrior.execute_command([self['uuid'], 'delete'])
+ self.backend.delete_task(self)
# Refresh the status again, so that we have updated info stored
self.refresh(only_fields=['status', 'start', 'end'])
elif self.active:
raise Task.ActiveTask("Task is already active")
- self.warrior.execute_command([self['uuid'], 'start'])
+ self.backend.start_task(self)
# Refresh the status again, so that we have updated info stored
self.refresh(only_fields=['status', 'start'])
if not self.active:
raise Task.InactiveTask("Cannot stop an inactive task")
- self.warrior.execute_command([self['uuid'], 'stop'])
+ self.backend.stop_task(self)
# Refresh the status again, so that we have updated info stored
self.refresh(only_fields=['status', 'start'])
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'])
+ self.backend.complete_task(self)
# Refresh the status again, so that we have updated info stored
self.refresh(only_fields=['status', 'start', 'end'])
if self.saved and not self.modified:
return
- args = [self['uuid'], 'modify'] if self.saved else ['add']
- args.extend(self._get_modified_fields_as_args())
- output = self.warrior.execute_command(args)
-
- # Parse out the new ID, if the task is being added for the first time
- if not self.saved:
- id_lines = [l for l in output if l.startswith('Created task ')]
-
- # Complain loudly if it seems that more tasks were created
- # Should not happen
- if len(id_lines) != 1 or len(id_lines[0].split(' ')) != 3:
- raise TaskWarriorException("Unexpected output when creating "
- "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('.'))
-
- # 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()
+ # 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.backend.annotate_task(self, annotation)
self.refresh(only_fields=['annotations'])
def remove_annotation(self, 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 = []
-
- 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)
-
- 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
+ self.backend.denotate_task(self, annotation)
+ self.refresh(only_fields=['annotations'])
- 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")
- # 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']
- new_data = json.loads(self.warrior.execute_command(args)[0])
+ new_data = self.backend.refresh_task(self, after_save=after_save)
+
if only_fields:
to_update = dict(
[(k, new_data.get(k)) for k in only_fields])
else:
self._load_data(new_data)
-class TaskFilter(SerializingObject):
- """
- A set of parameters to filter the task list with.
- """
-
- def __init__(self, warrior, filter_params=[]):
- self.filter_params = filter_params
- 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('__', '.')
-
- # 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
- 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__(self.warrior)
- c.filter_params = list(self.filter_params)
- return c
-
class TaskQuerySet(object):
"""
Represents a lazy lookup for a task objects.
"""
- def __init__(self, warrior=None, filter_obj=None):
- self.warrior = warrior
+ def __init__(self, backend, filter_obj=None):
+ self.backend = backend
self._result_cache = None
- self.filter_obj = filter_obj or TaskFilter(warrior)
+ self.filter_obj = filter_obj or self.backend.filter_class(backend)
def __deepcopy__(self, memo):
"""
Deep copy of a QuerySet doesn't populate the cache
"""
- obj = self.__class__()
+ obj = self.__class__(backend=self.backend)
for k, v in self.__dict__.items():
if k in ('_iter', '_result_cache'):
obj.__dict__[k] = None
if klass is None:
klass = self.__class__
filter_obj = self.filter_obj.clone()
- c = klass(warrior=self.warrior, filter_obj=filter_obj)
+ c = klass(backend=self.backend, filter_obj=filter_obj)
c.__dict__.update(kwargs)
return c
"""
Fetch the tasks which match the current filters.
"""
- return self.warrior.filter_tasks(self.filter_obj)
+ return self.backend.filter_tasks(self.filter_obj)
def all(self):
"""
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=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
- # dummy .taskrc file by TaskWarrior
- if not os.path.exists(self.taskrc_location):
- self.taskrc_location = '/'
-
- self.version = self._get_version()
- self.config = {
- '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)
-
- def _get_command_args(self, args, config_override={}):
- command_args = ['task', 'rc:{0}'.format(self.taskrc_location)]
- 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(six.text_type, args))
- return command_args
-
- def _get_version(self):
- p = subprocess.Popen(
- ['task', '--version'],
- stdout=subprocess.PIPE,
- stderr=subprocess.PIPE)
- stdout, stderr = [x.decode('utf-8') for x in p.communicate()]
- return stdout.strip('\n')
-
- def get_config(self):
- raw_output = self.execute_command(
- ['show'],
- config_override={'verbose': 'nothing'}
- )
-
- config = dict()
- config_regex = re.compile(r'^(?P<key>[^\s]+)\s+(?P<value>[^\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))
- p = subprocess.Popen(command_args, stdout=subprocess.PIPE,
- stderr=subprocess.PIPE)
- stdout, stderr = [x.decode('utf-8') for x in p.communicate()]
- if p.returncode and allow_failure:
- if stderr.strip():
- error_msg = stderr.strip()
- else:
- error_msg = stdout.strip()
- raise TaskWarriorException(error_msg)
-
- # 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
- # of recurrent tasks.
-
- # Only necessary for TW up to 2.4.1, fixed in 2.4.2.
- if self.version < VERSION_2_4_2:
- self.execute_command(['next'], allow_failure=False)
-
- def filter_tasks(self, filter_obj):
- self.enforce_recurrence()
- args = ['export', '--'] + filter_obj.get_filter_params()
- tasks = []
- for line in self.execute_command(args):
- if line:
- data = line.strip(',')
- try:
- 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
-
- 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'])
import tempfile
import unittest
-from .task import TaskWarrior, Task, ReadOnlyDictView, local_zone, DATE_FORMAT
+from .backends import TaskWarrior
+from .task import Task, ReadOnlyDictView
+from .serializing import DATE_FORMAT, local_zone
# http://taskwarrior.org/docs/design/task.html , Section: The Attributes
TASK_STANDARD_ATTRS = (
self.assertRaises(Task.CompletedTask, t.start)
+ def test_add_completed_task(self):
+ t = Task(self.tw, description="test", status="completed",
+ end=datetime.datetime.now())
+ t.save()
+
+ def test_add_multiple_completed_tasks(self):
+ t1 = Task(self.tw, description="test1", status="completed",
+ end=datetime.datetime.now())
+ t2 = Task(self.tw, description="test2", status="completed",
+ end=datetime.datetime.now())
+ t1.save()
+ t2.save()
+
def test_complete_deleted_task(self):
t = Task(self.tw, description="test task")
t.save()
'"description":"test task"}')
def test_setting_up_from_add_hook_input(self):
- t = Task.from_input(input_file=self.input_add_data, warrior=self.tw)
+ t = Task.from_input(input_file=self.input_add_data, backend=self.tw)
self.assertEqual(t['description'], "Buy some milk")
self.assertEqual(t.pending, True)
def test_setting_up_from_modified_hook_input(self):
t = Task.from_input(input_file=self.input_modify_data, modify=True,
- warrior=self.tw)
+ backend=self.tw)
self.assertEqual(t['description'], "Buy some milk finally")
self.assertEqual(t.pending, False)
self.assertEqual(t.completed, True)
projects / etc / taskwarrior.git / commitdiff