blob: 05fefb41adef6185d876d66c8b74f8d9c149dfdc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
# Copyright 2014 Lars Wirzenius
#
# 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/>.
#
# =*= License: GPL-3+ =*=
import logging
import distixlib
class CannotLoadMetadataError(distixlib.StructuredError):
msg = "Couldn't load metadata from {filename}: {errno}: {strerror}"
class MetadataLoader(object):
def load_from_file(self, filename):
try:
with self._open_file(filename) as f:
text = f.read()
except EnvironmentError as e:
logging.error('Opening or reading %s: %s', filename, e)
raise distixlib.CannotLoadMetadataError(
filename=filename, errno=e.errno, strerror=e.strerror)
serialiser = distixlib.MetadataSerialiser()
return serialiser.deserialise(text)
def _open_file(self, filename, mode='r'): # pragma: no cover
return open(filename, mode)
|
