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# -*- coding: utf-8 -*-
# __init__.py
# Copyright (C) 2013 LEAP
#
# 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/>.
"""
Some small and handy functions.
"""
import datetime
import os
from leap.bitmask.config import flags
from leap.common.config import get_path_prefix as common_get_path_prefix
def get_path_prefix():
return common_get_path_prefix(flags.STANDALONE)
def first(things):
"""
Return the head of a collection.
"""
try:
return things[0]
except (IndexError, TypeError):
return None
def get_modification_ts(path):
"""
Gets modification time of a file.
:param path: the path to get ts from
:type path: str
:returns: modification time
:rtype: datetime object
"""
ts = os.path.getmtime(path)
return datetime.datetime.fromtimestamp(ts)
def update_modification_ts(path):
"""
Sets modification time of a file to current time.
:param path: the path to set ts to.
:type path: str
:returns: modification time
:rtype: datetime object
"""
os.utime(path, None)
return get_modification_ts(path)
def is_file(path):
"""
Returns True if the path exists and is a file.
"""
return os.path.isfile(path)
def is_empty_file(path):
"""
Returns True if the file at path is empty.
"""
return os.stat(path).st_size is 0
def make_address(user, provider):
"""
Return a full identifier for an user, as a email-like
identifier.
:param user: the username
:type user: basestring
:param provider: the provider domain
:type provider: basestring
"""
return "%s@%s" % (user, provider)
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