]> git.madduck.net Git - etc/taskwarrior.git/blobdiff - tasklib/task.py

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

travis: Updated tested versions
[etc/taskwarrior.git] / tasklib / task.py
index e8e5dfda4a796f789c7696f36c70534cb1bbcebc..4d07fbf4da49c00bd1f1153aa51ced88bb531803 100644 (file)
@@ -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'
@@ -19,6 +21,9 @@ 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()
@@ -86,6 +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)
@@ -149,6 +157,24 @@ class SerializingObject(object):
     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)
 
@@ -230,13 +256,26 @@ 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
 
@@ -259,7 +298,7 @@ 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
@@ -268,6 +307,11 @@ 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)
 
@@ -344,6 +388,7 @@ 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)
@@ -377,6 +422,18 @@ 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
@@ -419,12 +476,13 @@ 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():
@@ -479,6 +537,10 @@ 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
@@ -517,7 +579,7 @@ 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:
@@ -532,8 +594,41 @@ class Task(TaskResource):
         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):
         if not self.saved:
@@ -547,10 +642,14 @@ 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
-        self.refresh(only_fields=['status'])
+        self.refresh(only_fields=['status', 'start', 'end'])
 
     def save(self):
         if self.saved and not self.modified:
@@ -609,9 +708,9 @@ 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),
@@ -654,8 +753,9 @@ class TaskFilter(SerializingObject):
     A set of parameters to filter the task list with.
     """
 
-    def __init__(self, filter_params=[]):
+    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)
@@ -668,7 +768,7 @@ class TaskFilter(SerializingObject):
         attribute_key = key.split('.')[0]
 
         # Since this is user input, we need to normalize before we serialize
-        value = self._normalize(key, value)
+        value = self._normalize(attribute_key, value)
         value = self._serialize(attribute_key, value)
 
         # If we are filtering by uuid:, do not use uuid keyword
@@ -684,13 +784,13 @@ class TaskFilter(SerializingObject):
             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
 
@@ -703,7 +803,7 @@ 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):
         """
@@ -806,26 +906,40 @@ class TaskQuerySet(object):
 
 
 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)
+    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 = {
-            '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
+            # 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:/']
+        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(str, args))
+        command_args.extend(map(six.text_type, args))
         return command_args
 
     def _get_version(self):
@@ -836,7 +950,24 @@ 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<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))
@@ -849,14 +980,22 @@ 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
         # of recurrent tasks.
-        # TODO: Make a version dependant enforcement once
-        #       TW-1531 is handled
-        self.execute_command(['next'], allow_failure=False)
+
+        # 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()