Mercurial > hg
view hgext/lfs/pointer.py @ 50329:3dbc7b1ecaba stable
typing: correct the signature of error.CommandError
There's a place in `mercurial.dispatch._parse()` that passes None if a parse
error happens before the command can be parsed out, and casting the error to
bytes works fine because the command and message fields are apparently ignored.
Likewise, TortoiseHg similarly passes None for the same reason.
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Fri, 24 Mar 2023 02:22:12 -0400 |
parents | 1672c5af1271 |
children |
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# pointer.py - Git-LFS pointer serialization # # Copyright 2017 Facebook, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import re from mercurial.i18n import _ from mercurial import ( error, pycompat, ) from mercurial.utils import stringutil class InvalidPointer(error.StorageError): pass class gitlfspointer(dict): VERSION = b'https://git-lfs.github.com/spec/v1' def __init__(self, *args, **kwargs): self[b'version'] = self.VERSION super(gitlfspointer, self).__init__(*args) self.update(pycompat.byteskwargs(kwargs)) @classmethod def deserialize(cls, text): try: return cls(l.split(b' ', 1) for l in text.splitlines()).validate() except ValueError: # l.split returns 1 item instead of 2 raise InvalidPointer( _(b'cannot parse git-lfs text: %s') % stringutil.pprint(text) ) def serialize(self): sortkeyfunc = lambda x: (x[0] != b'version', x) items = sorted(self.validate().items(), key=sortkeyfunc) return b''.join(b'%s %s\n' % (k, v) for k, v in items) def oid(self): return self[b'oid'].split(b':')[-1] def size(self): return int(self[b'size']) # regular expressions used by _validate # see https://github.com/git-lfs/git-lfs/blob/master/docs/spec.md _keyre = re.compile(br'\A[a-z0-9.-]+\Z') _valuere = re.compile(br'\A[^\n]*\Z') _requiredre = { b'size': re.compile(br'\A[0-9]+\Z'), b'oid': re.compile(br'\Asha256:[0-9a-f]{64}\Z'), b'version': re.compile(br'\A%s\Z' % stringutil.reescape(VERSION)), } def validate(self): """raise InvalidPointer on error. return self if there is no error""" requiredcount = 0 for k, v in self.items(): if k in self._requiredre: if not self._requiredre[k].match(v): raise InvalidPointer( _(b'unexpected lfs pointer value: %s=%s') % (k, stringutil.pprint(v)) ) requiredcount += 1 elif not self._keyre.match(k): raise InvalidPointer(_(b'unexpected lfs pointer key: %s') % k) if not self._valuere.match(v): raise InvalidPointer( _(b'unexpected lfs pointer value: %s=%s') % (k, stringutil.pprint(v)) ) if len(self._requiredre) != requiredcount: miss = sorted(set(self._requiredre.keys()).difference(self.keys())) raise InvalidPointer( _(b'missing lfs pointer keys: %s') % b', '.join(miss) ) return self deserialize = gitlfspointer.deserialize