]> 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:

backends: Move TW-specific annotation logic to TW backend
[etc/taskwarrior.git] / tasklib / task.py
index 0f8d963140949683cc878f9a192a83bf1802bfb4..9ae63d48fe53a15ce5cdb551edd34e49b4002fe6 100644 (file)
@@ -5,34 +5,22 @@ import json
 import logging
 import os
 import pytz
-import re
 import six
 import sys
-import subprocess
 import tzlocal
 
+from backends import TaskWarrior, TaskWarriorException
+
 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):
     """
     Provides simplified read-only view upon dict object.
@@ -237,8 +225,15 @@ class SerializingObject(object):
         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(',')
+        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.warrior.tasks.get(uuid=uuid) for uuid in uuids if uuid)
 
     def datetime_normalizer(self, value):
@@ -385,9 +380,9 @@ class TaskResource(SerializingObject):
 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)
+        self._load_data(data or dict())
         super(TaskAnnotation, self).__init__(task.warrior)
 
     def remove(self):
@@ -591,7 +586,7 @@ class Task(TaskResource):
         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'])
@@ -610,7 +605,7 @@ class Task(TaskResource):
         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'])
@@ -625,7 +620,7 @@ class Task(TaskResource):
         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'])
@@ -642,11 +637,7 @@ 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'])
+        self.backend.complete_task(self)
 
         # Refresh the status again, so that we have updated info stored
         self.refresh(only_fields=['status', 'start', 'end'])
@@ -655,34 +646,14 @@ class Task(TaskResource):
         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):
@@ -691,8 +662,8 @@ class Task(TaskResource):
 
         if isinstance(annotation, TaskAnnotation):
             annotation = annotation['description']
-        args = [self['uuid'], 'denotate', annotation]
-        self.warrior.execute_command(args)
+
+        self.backend.denotate_task(self, annotation)
         self.refresh(only_fields=['annotations'])
 
     def _get_modified_fields_as_args(self):
@@ -731,16 +702,13 @@ class Task(TaskResource):
 
         return args
 
-    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])
@@ -753,8 +721,8 @@ class TaskFilter(SerializingObject):
     A set of parameters to filter the task list with.
     """
 
-    def __init__(self, warrior, filter_params=[]):
-        self.filter_params = filter_params
+    def __init__(self, warrior, filter_params=None):
+        self.filter_params = filter_params or []
         super(TaskFilter, self).__init__(warrior)
 
     def add_filter(self, filter_str):
@@ -781,8 +749,10 @@ class TaskFilter(SerializingObject):
 
             # 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
+            # which is, however, fixed in 2.4.5
+            if self.warrior.version < 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))
 
@@ -903,120 +873,3 @@ class TaskQuerySet(object):
         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
-            # 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>[_a-z\.]+)\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'])