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# Copyright (C) 2012 Aleksey Lim
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import time
import logging
from os.path import exists, join, isdir, isfile
from sugar_network import local
from sugar_network.toolkit import sugar
from active_toolkit import coroutine
MAP_PROPS = {
# ds_prop: (sn_prop, sn2ds_convert, ds2sn_convert)
'uid': ('guid', lambda x: x, str),
'activity': ('context', lambda x: x, str),
'activity_id': ('activity_id', lambda x: x, str),
'title': ('title', lambda x: x, str),
'description': ('description', lambda x: x, str),
'keep': ('keep', lambda x: str(int(x)), lambda x: x and x != '0'),
'mime_type': ('mime_type', lambda x: x, str),
'tags': ('tags', lambda x: ' '.join(x), lambda x: str(x).split()),
'filesize': ('filesize', lambda x: str(x or 0), lambda x: int(x or 0)),
'creation_time': ('ctime', lambda x: str(x or 0), None),
'timestamp': ('mtime', lambda x: str(x or 0), None),
'mtime': ('mtime', lambda x:
time.strftime('%Y-%m-%dT%H:%M:%S', time.localtime(x or 0)), None),
}
ALL_SN_PROPS = (
'guid', 'context', 'keep', 'mime_type', 'title', 'description',
'activity_id', 'filesize', 'traits', 'tags', 'ctime', 'mtime',
)
_logger = logging.getLogger('local.datastore')
def populate(artifacts):
sn_stamp = local.path('datastore.index_updated')
ds_stamp = sugar.profile_path('datastore', 'index_updated')
if exists(sn_stamp) == exists(ds_stamp) and (not exists(sn_stamp) or
os.stat(sn_stamp).st_mtime == os.stat(ds_stamp).st_mtime):
_logger.debug('No stale changes found in sugar-datastore')
return
if not exists(ds_stamp):
_logger.debug('sugar-datastore index was removed')
os.unlink(sn_stamp)
return
_logger.info('Start populating Artifacts from sugar-datastore')
root = sugar.profile_path('datastore')
for guids_dirname in os.listdir(root):
guids_path = join(root, guids_dirname)
if not isdir(guids_path):
continue
for guid in os.listdir(guids_path):
coroutine.dispatch()
metadata = join(guids_path, guid, 'metadata')
if not isdir(metadata) or artifacts.exists(guid):
continue
props = {'guid': guid,
'traits': {},
}
for ds_prop in os.listdir(metadata):
path = join(metadata, ds_prop)
if not isfile(path):
continue
if ds_prop == 'preview':
artifacts.set_blob(guid, 'preview', path)
else:
with file(path, 'rb') as f:
value = f.read()
if ds_prop in MAP_PROPS:
sn_prop, __, typecast = MAP_PROPS[ds_prop]
if typecast is not None:
props[sn_prop] = typecast(value)
elif ds_prop == 'creation_time':
props['ctime'] = int(value)
elif ds_prop == 'timestamp':
props['mtime'] = int(value)
else:
props['traits'][ds_prop] = value
artifacts.create(props)
data = join(guids_path, guid, 'data')
if isfile(data):
artifacts.set_blob(guid, 'data', data)
with file(sn_stamp, 'w'):
pass
stamp = os.stat(ds_stamp).st_mtime
os.utime(sn_stamp, (stamp, stamp))
def decode_names(names):
result = []
add_traits = False
for ds_prop in names:
ds_prop = str(ds_prop)
if ds_prop in MAP_PROPS:
result.append(MAP_PROPS[ds_prop][0])
else:
add_traits = True
if add_traits:
result.append('traits')
return result
def decode_props(props, process_traits=True):
result = {}
for ds_prop, (sn_prop, __, typecast) in MAP_PROPS.items():
if ds_prop in props:
value = props.pop(ds_prop)
if typecast is not None:
result[sn_prop] = typecast(value)
if process_traits and props:
traits = result['traits'] = {}
for key, value in props.items():
traits[str(key)] = str(value)
return result
def encode_props(props, names):
result = {}
for ds_prop, (sn_prop, typecast, __) in MAP_PROPS.items():
if sn_prop in props:
value = typecast(props[sn_prop])
result[ds_prop] = value
traits = props.get('traits') or {}
if names is None:
result.update(traits)
else:
for key, value in traits.items():
if key in names:
result[key] = value
return result
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