Show More
@@ -1,73 +1,73 b'' | |||
|
1 | 1 | # pointer.py - Git-LFS pointer serialization |
|
2 | 2 | # |
|
3 | 3 | # Copyright 2017 Facebook, Inc. |
|
4 | 4 | # |
|
5 | 5 | # This software may be used and distributed according to the terms of the |
|
6 | 6 | # GNU General Public License version 2 or any later version. |
|
7 | 7 | |
|
8 | 8 | from __future__ import absolute_import |
|
9 | 9 | |
|
10 | 10 | import re |
|
11 | 11 | |
|
12 | 12 | from mercurial.i18n import _ |
|
13 | 13 | |
|
14 | 14 | from mercurial import ( |
|
15 | 15 | error, |
|
16 | 16 | ) |
|
17 | 17 | |
|
18 | 18 | class InvalidPointer(error.RevlogError): |
|
19 | 19 | pass |
|
20 | 20 | |
|
21 | 21 | class gitlfspointer(dict): |
|
22 | 22 | VERSION = 'https://git-lfs.github.com/spec/v1' |
|
23 | 23 | |
|
24 | 24 | def __init__(self, *args, **kwargs): |
|
25 | 25 | self['version'] = self.VERSION |
|
26 | 26 | super(gitlfspointer, self).__init__(*args, **kwargs) |
|
27 | 27 | |
|
28 | 28 | @classmethod |
|
29 | 29 | def deserialize(cls, text): |
|
30 | 30 | try: |
|
31 | 31 | return cls(l.split(' ', 1) for l in text.splitlines()).validate() |
|
32 | 32 | except ValueError: # l.split returns 1 item instead of 2 |
|
33 | 33 | raise InvalidPointer(_('cannot parse git-lfs text: %r') % text) |
|
34 | 34 | |
|
35 | 35 | def serialize(self): |
|
36 | 36 | sortkeyfunc = lambda x: (x[0] != 'version', x) |
|
37 | 37 | items = sorted(self.validate().iteritems(), key=sortkeyfunc) |
|
38 | 38 | return ''.join('%s %s\n' % (k, v) for k, v in items) |
|
39 | 39 | |
|
40 | 40 | def oid(self): |
|
41 | 41 | return self['oid'].split(':')[-1] |
|
42 | 42 | |
|
43 | 43 | def size(self): |
|
44 | 44 | return int(self['size']) |
|
45 | 45 | |
|
46 | 46 | # regular expressions used by _validate |
|
47 | 47 | # see https://github.com/git-lfs/git-lfs/blob/master/docs/spec.md |
|
48 | _keyre = re.compile(r'\A[a-z0-9.-]+\Z') | |
|
49 | _valuere = re.compile(r'\A[^\n]*\Z') | |
|
48 | _keyre = re.compile(br'\A[a-z0-9.-]+\Z') | |
|
49 | _valuere = re.compile(br'\A[^\n]*\Z') | |
|
50 | 50 | _requiredre = { |
|
51 | 'size': re.compile(r'\A[0-9]+\Z'), | |
|
52 | 'oid': re.compile(r'\Asha256:[0-9a-f]{64}\Z'), | |
|
53 | 'version': re.compile(r'\A%s\Z' % re.escape(VERSION)), | |
|
51 | 'size': re.compile(br'\A[0-9]+\Z'), | |
|
52 | 'oid': re.compile(br'\Asha256:[0-9a-f]{64}\Z'), | |
|
53 | 'version': re.compile(br'\A%s\Z' % re.escape(VERSION)), | |
|
54 | 54 | } |
|
55 | 55 | |
|
56 | 56 | def validate(self): |
|
57 | 57 | """raise InvalidPointer on error. return self if there is no error""" |
|
58 | 58 | requiredcount = 0 |
|
59 | 59 | for k, v in self.iteritems(): |
|
60 | 60 | if k in self._requiredre: |
|
61 | 61 | if not self._requiredre[k].match(v): |
|
62 | 62 | raise InvalidPointer(_('unexpected value: %s=%r') % (k, v)) |
|
63 | 63 | requiredcount += 1 |
|
64 | 64 | elif not self._keyre.match(k): |
|
65 | 65 | raise InvalidPointer(_('unexpected key: %s') % k) |
|
66 | 66 | if not self._valuere.match(v): |
|
67 | 67 | raise InvalidPointer(_('unexpected value: %s=%r') % (k, v)) |
|
68 | 68 | if len(self._requiredre) != requiredcount: |
|
69 | 69 | miss = sorted(set(self._requiredre.keys()).difference(self.keys())) |
|
70 | 70 | raise InvalidPointer(_('missed keys: %s') % ', '.join(miss)) |
|
71 | 71 | return self |
|
72 | 72 | |
|
73 | 73 | deserialize = gitlfspointer.deserialize |
General Comments 0
You need to be logged in to leave comments.
Login now