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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
""" Manages a metadata file.
"""
import datetime
import json
import os
from collections.abc import MutableMapping
from condprof.util import logger
METADATA_NAME = "condprofile.json"
class Metadata(MutableMapping):
"""dict-like class that holds metadata for a profile."""
def __init__(self, profile_dir):
self.metadata_file = os.path.join(profile_dir, METADATA_NAME)
logger.info("Reading existing metadata at %s" % self.metadata_file)
if not os.path.exists(self.metadata_file):
logger.info("Could not find the metadata file in that profile")
self._data = {}
else:
with open(self.metadata_file) as f:
self._data = json.loads(f.read())
def __getitem__(self, key):
return self._data[self.__keytransform__(key)]
def __setitem__(self, key, value):
self._data[self.__keytransform__(key)] = value
def __delitem__(self, key):
del self._data[self.__keytransform__(key)]
def __iter__(self):
return iter(self._data)
def __len__(self):
return len(self._data)
def __keytransform__(self, key):
return key
def _days2age(self, days):
if days < 7:
return "days"
if days < 30:
return "weeks"
if days < 30 * 6:
return "months"
return "old" # :)
def _delta(self, created, updated):
created = created[:26]
updated = updated[:26]
# tz..
format = "%Y-%m-%d %H:%M:%S.%f"
created = datetime.datetime.strptime(created, format)
updated = datetime.datetime.strptime(updated, format)
delta = created - updated
return delta.days
def write(self, **extras):
# writing metadata
logger.info("Creating metadata...")
self._data.update(**extras)
ts = str(datetime.datetime.now())
if "created" not in self._data:
self._data["created"] = ts
self._data["updated"] = ts
# XXX need android arch version here
days = self._delta(self._data["created"], self._data["updated"])
self._data["days"] = days
self._data["age"] = self._days2age(days)
# adding info about the firefox version
# XXX build ID ??
# XXX android ??
logger.info("Saving metadata file in %s" % self.metadata_file)
with open(self.metadata_file, "w") as f:
f.write(json.dumps(self._data))
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