CVS migration help

Tue Oct 7 16:04:42 BST 2008

btw...

bzr 1.3.1

Maybe that's the issue... the version on ubuntu is very old considering 1.8
rc1 has been announced...

On Tue, Oct 7, 2008 at 17:03, Thomas Manson <dev.mansonthomas at gmail.com>wrote:

>  Hi Michael,
>
>   I've checkout the trunk version (the version on ubuntu hardy heron is
> quite old : 2.0.1)
>   succeed in cvs2svn conversion,
>
>  unfortunately it crashes in the same way that bzr cvsps-import does :
>
>
> thomas at home:~/temp/bzr$ cat ../cvs2svn-tmp/git-blob.dat
> ../cvs2svn-tmp/git-dump.dat |  bzr fast-import -
> bzr: ERROR: exceptions.UnicodeDecodeError: 'utf8' codec can't decode bytes
> in position 43-45: invalid data
>  Traceback (most recent call last):
>   File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 834, in
> run_bzr_catch_errors
>     return run_bzr(argv)
>   File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 790, in
> run_bzr
>     ret = run(*run_argv)
>   File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 492, in
> run_argv_aliases
>     return self.run(**all_cmd_args)
>   File "/home/thomas/.bazaar/plugins/fastimport/__init__.py", line 199, in
> run
>     params, verbose)
>   File "/home/thomas/.bazaar/plugins/fastimport/__init__.py", line 77, in
> _run
>     return proc.process(p.iter_commands)
>   File "/home/thomas/.bazaar/plugins/fastimport/processor.py", line 83, in
> process
>     self._process(command_iter)
>   File
> "/home/thomas/.bazaar/plugins/fastimport/processors/generic_processor.py",
> line 317, in _process
>     processor.ImportProcessor._process(self, command_iter)
>   File "/home/thomas/.bazaar/plugins/fastimport/processor.py", line 105, in
> _process
>     handler(self, cmd)
>   File
> "/home/thomas/.bazaar/plugins/fastimport/processors/generic_processor.py",
> line 486, in commit_handler
>     handler.process()
>   File "/home/thomas/.bazaar/plugins/fastimport/processor.py", line 164, in
> process
>     for fc in self.command.file_iter():
>   File "/home/thomas/.bazaar/plugins/fastimport/parser.py", line 312, in
> iter_file_commands
>     yield self._parse_file_modify(line[2:])
>   File "/home/thomas/.bazaar/plugins/fastimport/parser.py", line 365, in
> _parse_file_modify
>     path = self._path(params[2])
>   File "/home/thomas/.bazaar/plugins/fastimport/parser.py", line 493, in
> _path
>     return s.decode('utf_8')
>   File "/usr/lib/python2.5/encodings/utf_8.py", line 16, in decode
>     return codecs.utf_8_decode(input, errors, True)
> UnicodeDecodeError: 'utf8' codec can't decode bytes in position 43-45:
> invalid data
> bzr 1.3.1 on python 2.5.2.final.0 (linux2)
> arguments: ['/usr/bin/bzr', 'fast-import', '-']
> encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'en_US.UTF-8'
> plugins:
>   bzrtools
> /usr/lib/python2.5/site-packages/bzrlib/plugins/bzrtools [1.3.0]
>   cvsps_import         /home/thomas/.bazaar/plugins/cvsps_import [unknown]
>   fastimport           /home/thomas/.bazaar/plugins/fastimport [unknown]
>   launchpad
> /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [unknown]
> *** Bazaar has encountered an internal error.
>     Please report a bug at https://bugs.launchpad.net/bzr/+filebug
>     including this traceback, and a description of what you
>     were doing when the error occurred.
>
> I don't think it's related to cvs2svn or cvsps as it fails in both cases.
> It should be a bzr bug.
>
> I've successfully converted my project to git repository format with these
> set of command :
>
> export CVSROOT=/home/thomas/temp/cvs2git/cvs/files
>
> git cvsimport -C /home/thomas/temp/cvs2gitOutput/crf-irp           crf-irp
> git cvsimport -C /home/thomas/temp/cvs2gitOutput/crf-irp-model
> crf-irp-model
> git cvsimport -C /home/thomas/temp/cvs2gitOutput/crf-irp-monitor
> crf-irp-monitor
> git cvsimport -C /home/thomas/temp/cvs2gitOutput/crf-irp-portail
> crf-irp-portail
> git cvsimport -C /home/thomas/temp/cvs2gitOutput/crf-irp-utilities
> crf-irp-utilities
>
>
> Is it possible to convert the git version of my sources to bzr ? maybe it
> would be successfull.
>
>
> Thomas.
>
>
>
> On Tue, Oct 7, 2008 at 12:41, Michael Haggerty <mhagger at alum.mit.edu>wrote:
>
>> Jelmer Vernooij wrote:
>> > Am Dienstag, den 07.10.2008, 00:01 +0200 schrieb Thomas Manson:
>> >> I've look to it... but didn't tryed yet...
>> >>
>> >> It really misses straightforward howto (for all tools except bzr
>> >> cvsimport)
>> > cvsps-import should be the best solution here, we should just fixing
>> > that imho. What's blocking you from using it?
>>
>> No conversion tool that is based on cvsps will be able to do a truly
>> reliable job of migrating from CVS.  cvsps, which was written for
>> another purpose, simply is not robust enough and does not emit enough
>> information for a complete conversion.  I gave many concrete examples of
>> its shortcomings on the Mercurial mailing list [1].
>>
>> Deducing a project's history from CVS's incomplete records is a very
>> tricky thing; cvs2svn's feature list [2] will give you an idea of the
>> kinds of things an industrial-strength converter needs to handle.
>> cvs2svn deduces the CVS changesets itself, using a much more robust
>> algorithm than that used by cvsps.  (The main disadvantage of cvs2svn is
>> that it can only be used for one-time conversions, not for tracking a
>> live CVS repository incrementally.)
>>
>> cvs2svn/cvs2git can create output in git-fast-import format [3], which
>> should also be readable by the bzr fast-import tool.  It hasn't gotten
>> much testing in "cvs2bzr" mode, but given that 90% of the job is
>> inferring CVS's history, it should not be too much work to fix any
>> problems in the "2bzr" part.  Therefore, any feedback would be much
>> appreciated.
>>
>> (By the way, if you want to use cvs2svn to convert to bzr, I suggest
>> that you use the trunk version of cvs2svn, which has several
>> improvements compared to release 2.1.1.)
>>
>> Michael
>>
>> [1]
>> http://selenic.com/pipermail/mercurial-devel/2008-February/004975.html
>>
>> [2] http://cvs2svn.tigris.org/features.html
>>
>> [3] http://cvs2svn.tigris.org/cvs2git.html
>>
>
>
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