+from __future__ import print_function
import copy
import datetime
import json
+import logging
import os
+import six
import subprocess
-import tempfile
-import uuid
-
DATE_FORMAT = '%Y%m%dT%H%M%SZ'
-
REPR_OUTPUT_SIZE = 10
-
PENDING = 'pending'
+COMPLETED = 'completed'
+
+logger = logging.getLogger(__name__)
class TaskWarriorException(Exception):
pass
-class Task(object):
+class TaskResource(object):
+ read_only_fields = []
+
+ def _load_data(self, data):
+ self._data = data
+
+ def __getitem__(self, key):
+ hydrate_func = getattr(self, 'deserialize_{0}'.format(key),
+ lambda x: x)
+ return hydrate_func(self._data.get(key))
+
+ def __setitem__(self, key, value):
+ if key in self.read_only_fields:
+ raise RuntimeError('Field \'%s\' is read-only' % key)
+ dehydrate_func = getattr(self, 'serialize_{0}'.format(key),
+ lambda x: x)
+ self._data[key] = dehydrate_func(value)
+ self._modified_fields.add(key)
+
+ 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)
+
+
+class TaskAnnotation(TaskResource):
+ read_only_fields = ['entry', 'description']
+
+ def __init__(self, task, data={}):
+ self.task = task
+ self._load_data(data)
+
+ def deserialize_entry(self, data):
+ return datetime.datetime.strptime(data, DATE_FORMAT) if data else None
+
+ def serialize_entry(self, date):
+ return date.strftime(DATE_FORMAT) if date else ''
+
+ def remove(self):
+ self.task.remove_annotation(self)
+
+ def __unicode__(self):
+ return self['description']
+
+ __repr__ = __unicode__
+
+
+class Task(TaskResource):
+ read_only_fields = ['id', 'entry', 'urgency', 'uuid']
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 NotSaved(Exception):
+ """
+ Raised when the operation cannot be performed on the task, because
+ it has not been saved to TaskWarrior yet.
+ """
+ pass
+
def __init__(self, warrior, data={}):
self.warrior = warrior
- self._data = data
+ self._load_data(data)
+ self._modified_fields = set()
- def __getitem__(self, key):
- return self._get_field(key)
+ def __unicode__(self):
+ return self['description']
- def __setitem__(self, key, val):
- self._data[key] = val
+ @property
+ def completed(self):
+ return self['status'] == six.text_type('completed')
- def __unicode__(self):
- return self._data.get('description')
+ @property
+ def deleted(self):
+ return self['status'] == six.text_type('deleted')
- def _get_field(self, key):
- hydrate_func = getattr(self, 'deserialize_{0}'.format(key), lambda x:x)
- return hydrate_func(self._data.get(key))
+ @property
+ def waiting(self):
+ return self['status'] == six.text_type('waiting')
- def _set_field(self, key, value):
- dehydrate_func = getattr(self, 'serialize_{0}'.format(key), lambda x:x)
- self._data[key] = dehydrate_func(value)
+ @property
+ def pending(self):
+ return self['status'] == six.text_type('pending')
+
+ @property
+ def saved(self):
+ return self['uuid'] is not None or self['id'] is not None
def serialize_due(self, date):
return date.strftime(DATE_FORMAT)
return None
return datetime.datetime.strptime(date_str, DATE_FORMAT)
- def regenerate_uuid(self):
- self['uuid'] = str(uuid.uuid4())
+ def deserialize_annotations(self, data):
+ return [TaskAnnotation(self, d) for d in data] if data else []
+
+ def deserialize_tags(self, tags):
+ if isinstance(tags, basestring):
+ return tags.split(',') if tags else []
+ return tags
+
+ def serialize_tags(self, tags):
+ return ','.join(tags) if tags else ''
def delete(self):
- self.warrior.delete_task(self['uuid'])
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved before it can be deleted")
- def done(self):
- self.warrior.complete_task(self['uuid'])
+ # Refresh the status, and raise exception if the task is deleted
+ self.refresh(only_fields=['status'])
- def save(self, delete_first=True):
- if self['uuid'] and delete_first:
- self.delete()
- if not self['uuid'] or delete_first:
- self.regenerate_uuid()
- self.warrior.import_tasks([self._data])
+ if self.deleted:
+ raise self.DeletedTask("Task was already deleted")
+
+ self.warrior.execute_command([self['uuid'], 'delete'], config_override={
+ 'confirmation': 'no',
+ })
+
+ # Refresh the status again, so that we have updated info stored
+ self.refresh(only_fields=['status'])
- __repr__ = __unicode__
+
+ def done(self):
+ if not self.saved:
+ raise self.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 self.CompletedTask("Cannot complete a completed task")
+ elif self.deleted:
+ raise self.DeletedTask("Deleted task cannot be completed")
+
+ self.warrior.execute_command([self['uuid'], 'done'])
+
+ # Refresh the status again, so that we have updated info stored
+ self.refresh(only_fields=['status'])
+
+ def save(self):
+ 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('.'))
+
+ self._modified_fields.clear()
+ self.refresh()
+
+ def add_annotation(self, annotation):
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved to add annotation")
+
+ args = [self['uuid'], 'annotate', annotation]
+ self.warrior.execute_command(args)
+ self.refresh(only_fields=['annotations'])
+
+ def remove_annotation(self, annotation):
+ if not self.saved:
+ raise self.NotSaved("Task needs to be saved to add 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 = []
+
+ # If we're modifying saved task, simply pass on all modified fields
+ if self.saved:
+ for field in self._modified_fields:
+ args.append('{0}:{1}'.format(field, self._data[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
+ args.append('{0}:{1}'.format(field, self._data[field]))
+
+ return args
+
+ def refresh(self, only_fields=[]):
+ # Raise error when trying to refresh a task that has not been saved
+ if not self.saved:
+ raise self.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])
+ if only_fields:
+ to_update = dict(
+ [(k, new_data.get(k)) for k in only_fields])
+ self._data.update(to_update)
+ else:
+ self._data = new_data
class TaskFilter(object):
A set of parameters to filter the task list with.
"""
- def __init__(self, filter_params=()):
+ def __init__(self, filter_params=[]):
self.filter_params = filter_params
- def add_filter(self, param, value):
- self.filter_params += ((param, value),)
+ 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
+ value = value if value is not None else ''
+ self.filter_params.append('{0}:{1}'.format(key, value))
def get_filter_params(self):
- return self.filter_params
+ return [f for f in self.filter_params if f]
def clone(self):
c = self.__class__()
- c.filter_params = tuple(self.filter_params)
+ c.filter_params = list(self.filter_params)
return c
Deep copy of a QuerySet doesn't populate the cache
"""
obj = self.__class__()
- for k,v in self.__dict__.items():
- if k in ('_iter','_result_cache'):
+ for k, v in self.__dict__.items():
+ if k in ('_iter', '_result_cache'):
obj.__dict__[k] = None
else:
obj.__dict__[k] = copy.deepcopy(v, memo)
"""
Fetch the tasks which match the current filters.
"""
- return self.warrior._execute_filter(self.filter_obj)
+ return self.warrior.filter_tasks(self.filter_obj)
def all(self):
"""
def pending(self):
return self.filter(status=PENDING)
- def filter(self, **kwargs):
+ def completed(self):
+ return self.filter(status=COMPLETED)
+
+ def filter(self, *args, **kwargs):
"""
Returns a new TaskQuerySet with the given filters added.
"""
clone = self._clone()
- for param, value in kwargs.items():
- clone.filter_obj.add_filter(param, value)
+ for f in args:
+ clone.filter_obj.add_filter(f)
+ for key, value in kwargs.items():
+ clone.filter_obj.add_filter_param(key, value)
return clone
def get(self, **kwargs):
class TaskWarrior(object):
- DEFAULT_FILTERS = {
- 'status': 'pending',
- }
-
def __init__(self, data_location='~/.task', create=True):
- if not os.path.exists(data_location):
+ 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 _generate_command(self, command):
- args = ['task', 'rc:/']
- for item in self.config.items():
- args.append('rc.{0}={1}'.format(*item))
- args.append(command)
- return ' '.join(args)
-
- def _execute_command(self, command):
- p = subprocess.Popen(self._generate_command(command), shell=True,
- stdout=subprocess.PIPE, stderr=subprocess.PIPE)
- stdout, stderr = p.communicate()
+ 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('utf-8') for x in p.communicate()]
if p.returncode:
- raise TaskWarriorException(stderr.strip())
+ if stderr.strip():
+ error_msg = stderr.strip().splitlines()[-1]
+ else:
+ error_msg = stdout.strip()
+ raise TaskWarriorException(error_msg)
return stdout.strip().split('\n')
- def _format_filter_kwarg(self, kwarg):
- key, val = kwarg[0], kwarg[1]
- key = key.replace('__', '.')
- return '{0}:{1}'.format(key, val)
-
- def _execute_filter(self, filter_obj):
- filter_commands = ' '.join(map(self._format_filter_kwarg,
- filter_obj.get_filter_params()))
- command = '{0} export'.format(filter_commands)
+ def filter_tasks(self, filter_obj):
+ args = ['export', '--'] + filter_obj.get_filter_params()
tasks = []
- for line in self._execute_command(command):
+ for line in self.execute_command(args):
if line:
- tasks.append(Task(self, json.loads(line.strip(','))))
+ data = line.strip(',')
+ try:
+ tasks.append(Task(self, json.loads(data)))
+ except ValueError:
+ raise TaskWarriorException('Invalid JSON: %s' % data)
return tasks
- def add_task(self, description, project=None):
- args = ['add', description]
- if project is not None:
- args.append('project:{0}'.format(project))
- self._execute_command(' '.join(args))
-
- def delete_task(self, task_id):
- self._execute_command('{0} rc.confirmation:no delete'.format(task_id))
-
- def complete_task(self, task_id):
- self._execute_command('{0} done'.format(task_id))
+ 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 import_tasks(self, tasks):
- fd, path = tempfile.mkstemp()
- with open(path, 'w') as f:
- f.write(json.dumps(tasks))
- self._execute_command('import {0}'.format(path))
+ def undo(self):
+ self.execute_command(['undo'], config_override={
+ 'confirmation': 'no',
+ })
projects / etc / taskwarrior.git / blobdiff