X-Git-Url: https://git.madduck.net/etc/taskwarrior.git/blobdiff_plain/ddc0c0cc460e471eca8c067b0748976e042a7607..303c3185205c2f39b2cd19b7f0adaf089ed1c8f7:/tasklib/task.py diff --git a/tasklib/task.py b/tasklib/task.py index 6392b9e..040c15b 100644 --- a/tasklib/task.py +++ b/tasklib/task.py @@ -5,6 +5,7 @@ import json import logging import os import six +import sys import subprocess DATE_FORMAT = '%Y%m%dT%H%M%SZ' @@ -93,9 +94,9 @@ class SerializingObject(object): return ','.join(tags) if tags else '' def deserialize_tags(self, tags): - if isinstance(tags, basestring): + if isinstance(tags, six.string_types): return tags.split(',') if tags else [] - return tags + return tags or [] def serialize_depends(self, cur_dependencies): # Return the list of uuids @@ -111,11 +112,11 @@ class TaskResource(SerializingObject): read_only_fields = [] def _load_data(self, data): - self._data = 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. Shallow copy is alright, since data dict uses only - # primitive data types - self._original_data = data.copy() + # are not propagated. + self._original_data = copy.deepcopy(self._data) def _update_data(self, data, update_original=False): """ @@ -123,11 +124,12 @@ class TaskResource(SerializingObject): updates should already be serialized. If update_original is True, the original_data dict is updated as well. """ - - self._data.update(data) + self._data.update(dict((key, self._deserialize(key, value)) + for key, value in data.items())) if update_original: - self._original_data.update(data) + self._original_data = copy.deepcopy(self._data) + def __getitem__(self, key): # This is a workaround to make TaskResource non-iterable @@ -138,12 +140,15 @@ class TaskResource(SerializingObject): except ValueError: pass - return self._deserialize(key, self._data.get(key)) + 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) - self._data[key] = self._serialize(key, value) + self._data[key] = value def __str__(self): s = six.text_type(self.__unicode__()) @@ -168,6 +173,11 @@ class TaskAnnotation(TaskResource): 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__ @@ -196,6 +206,40 @@ class Task(TaskResource): """ pass + @classmethod + def from_input(cls, input_file=sys.stdin, modify=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. + """ + + # TaskWarrior instance is set to None + task = cls(None) + + # 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 + + # 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())) + + return task + def __init__(self, warrior, **kwargs): self.warrior = warrior @@ -239,6 +283,10 @@ class Task(TaskResource): if self._data.get(key) != self._original_data.get(key): yield key + @property + def modified(self): + return bool(list(self._modified_fields)) + @property def completed(self): return self['status'] == six.text_type('completed') @@ -276,8 +324,7 @@ class Task(TaskResource): # to keep a list of all depedencies in the _data dictionary, # not just currently added/removed ones - old_dependencies_raw = self._original_data.get('depends','') - old_dependencies = self.deserialize_depends(old_dependencies_raw) + old_dependencies = self._original_data.get('depends', set()) added = self['depends'] - old_dependencies removed = old_dependencies - self['depends'] @@ -330,6 +377,9 @@ class Task(TaskResource): self.refresh(only_fields=['status']) def save(self): + 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) @@ -347,6 +397,9 @@ class Task(TaskResource): # 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() def add_annotation(self, annotation): @@ -373,9 +426,13 @@ class Task(TaskResource): def add_field(field): # Add the output of format_field method to args list (defaults to # field:value) - format_default = lambda k: "{0}:'{1}'".format(k, self._data[k] or '') + serialized_value = self._serialize(field, self._data[field]) or '' + format_default = lambda: "{0}:{1}".format( + field, + "'{0}'".format(serialized_value) if serialized_value else '' + ) format_func = getattr(self, 'format_{0}'.format(field), - lambda: format_default(field)) + format_default) args.append(format_func()) # If we're modifying saved task, simply pass on all modified fields @@ -408,6 +465,15 @@ class Task(TaskResource): else: self._load_data(new_data) + 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 = dict((key, self._serialize(key, value)) + for key, value in six.iteritems(self._data)) + return json.dumps(data, separators=(',',':')) class TaskFilter(SerializingObject): """