X-Git-Url: https://git.madduck.net/etc/taskwarrior.git/blobdiff_plain/73cb96ecbbcaf43f05dc825a1017c2680b79f5a9..e1027fe29d12cbb32e50cf7927f13d5c4b0c8225:/tasklib/backends.py?ds=sidebyside diff --git a/tasklib/backends.py b/tasklib/backends.py index 2a00dee..fbe3ba3 100644 --- a/tasklib/backends.py +++ b/tasklib/backends.py @@ -1,25 +1,29 @@ import abc +import copy +import datetime import json +import logging import os import re +import six import subprocess +import copy -from tasklib.filters import TaskWarriorFilter +from .task import Task, TaskQuerySet +from .filters import TaskWarriorFilter +from .serializing import local_zone -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') +DATE_FORMAT_CALC = '%Y-%m-%dT%H:%M:%S' + +logger = logging.getLogger(__name__) class Backend(object): - filter_class = TaskWarriorFilter + @abc.abstractproperty + def filter_class(self): + """Returns the TaskFilter class used by this backend""" + pass @abc.abstractmethod def filter_tasks(self, filter_obj): @@ -79,7 +83,18 @@ class TaskWarriorException(Exception): pass -class TaskWarrior(object): +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) @@ -88,6 +103,7 @@ class TaskWarrior(object): if not os.path.exists(self.taskrc_location): self.taskrc_location = '/' + self._config = None self.version = self._get_version() self.config = { 'confirmation': 'no', @@ -99,7 +115,7 @@ class TaskWarrior(object): # 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, + 'bulk': 0 if self.version >= self.VERSION_2_4_3 else 100000, } # Set data.location override if passed via kwarg @@ -122,9 +138,9 @@ class TaskWarrior(object): def _get_version(self): p = subprocess.Popen( - ['task', '--version'], - stdout=subprocess.PIPE, - stderr=subprocess.PIPE) + ['task', '--version'], + stdout=subprocess.PIPE, + stderr=subprocess.PIPE) stdout, stderr = [x.decode('utf-8') for x in p.communicate()] return stdout.strip('\n') @@ -141,10 +157,11 @@ class TaskWarrior(object): if serialized_value is '': escaped_serialized_value = '' else: - escaped_serialized_value = six.u("'{0}'").format(serialized_value) + escaped_serialized_value = six.u("'{0}'").format( + serialized_value) - format_default = lambda: six.u("{0}:{1}").format(field, - escaped_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) @@ -174,26 +191,26 @@ class TaskWarrior(object): old_dependencies = task._original_data.get('depends', set()) - added = self['depends'] - old_dependencies - removed = old_dependencies - self['depends'] + 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] - ) + [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 < VERSION_2_4_0: + 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 >= VERSION_2_4_0: + 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() @@ -205,13 +222,25 @@ class TaskWarrior(object): "datetime, its type is not supported: {}" .format(type(value))) + return localized + + @property + def filter_class(self): + return TaskWarriorFilter + # Public interface - def get_config(self): + @property + def config(self): + # First, check if memoized information is available + if self._config: + return copy.deepcopy(self._config) + + # If not, fetch the config using the 'show' command raw_output = self.execute_command( - ['show'], - config_override={'verbose': 'nothing'} - ) + ['show'], + config_override={'verbose': 'nothing'} + ) config = dict() config_regex = re.compile(r'^(?P[^\s]+)\s+(?P[^\s].+$)') @@ -221,7 +250,10 @@ class TaskWarrior(object): if match: config[match.group('key')] = match.group('value').strip() - return config + # Memoize the config dict + self._config = config + + return copy.deepcopy(config) def execute_command(self, args, config_override=None, allow_failure=True, return_all=False): @@ -251,7 +283,7 @@ class TaskWarrior(object): # of recurrent tasks. # Only necessary for TW up to 2.4.1, fixed in 2.4.2. - if self.version < VERSION_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): @@ -322,7 +354,7 @@ class TaskWarrior(object): def complete_task(self, task): # Older versions of TW do not stop active task at completion - if self.version < VERSION_2_4_0 and task.active: + if self.version < self.VERSION_2_4_0 and task.active: task.stop() self.execute_command([task['uuid'], 'done']) @@ -348,7 +380,7 @@ class TaskWarrior(object): # 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 < VERSION_2_4_5 + 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 @@ -362,14 +394,14 @@ class TaskWarrior(object): taskfilter.add_filter_param(key, value) output = self.execute_command(['export', '--'] + - taskfilter.get_filter_params()) + 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) + task['uuid'] or task['id'], task['description'], output) ) return json.loads(output[0])