branch fails with UnicodeDecodeError

[Soren Hansen]

I'm trying to branch http://xenbits.xen.org/hg/xen-4.1-testing.hg/

It's rather big, so it sits there for quite a while before it gets anywhere. I recommend using mercurial to check it out and then try branching that checkout using bzr to reproduce this issue:

I get this error:

 Traceback (most recent call last):
   File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 926, in exception_to_return_code
     return the_callable(*args, **kwargs)
   File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1126, in run_bzr
     ret = run(*run_argv)
   File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 691, in run_argv_aliases
     return self.run(**all_cmd_args)
   File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 713, in run
     return self._operation.run_simple(*args, **kwargs)
   File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 135, in run_simple
     self.cleanups, self.func, *args, **kwargs)
   File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
     result = func(*args, **kwargs)
   File "/usr/lib/python2.7/dist-packages/bzrlib/builtins.py", line 1227, in run
     source_branch=br_from)
   File "/home/username/.bazaar/plugins/hg/dir.py", line 198, in sprout
     interrepo.fetch(revision_id=revision_id)
   File "/usr/lib/python2.7/dist-packages/bzrlib/decorators.py", line 194, in write_locked
     result = unbound(self, *args, **kwargs)
   File "/home/username/.bazaar/plugins/hg/fetch.py", line 752, in fetch
     self.addchangegroup(cg, mapping, limit=limit)
   File "/home/username/.bazaar/plugins/hg/fetch.py", line 599, in addchangegroup
     self._unpack_changesets(changesetchunks, mapping, pb, limit=limit)
   File "/home/username/.bazaar/plugins/hg/fetch.py", line 475, in _unpack_changesets
     parse_changeset(fulltext)
   File "/home/username/.bazaar/plugins/hg/parsers.py", line 87, in parse_changeset
     desc = text[last + 2:].decode("utf-8")
   File "/usr/lib/python2.7/encodings/utf_8.py", line 16, in decode
     return codecs.utf_8_decode(input, errors, True)
 UnicodeDecodeError: 'utf8' codec can't decode byte 0xe4 in position 94: invalid continuation byte

While seemingly similar to Bug #486541, this seems to be caused by commit comment having a non-utf-8 string in it, not a filename, so perhaps this particular bug won't be deemed a Won't Fix :)

This is with bzr-hg revno 478, mercurial 1.7.5 and bzr 2.3.1

[Jelmer Vernooij (jelmer)]

Reproduced with trunk.