bzr 0.19 generate bundle that is not understandable by 0.18

[Alexander Belchenko]

I have no way with bzr 0.19 to generate bundle that will be understandable by bzr 0.18.
I have only bzr 0.18 on my server, and I try to transfer latest changes from my local machine. Unfortunately bzr 0.19 generate new merge-directive format bundle, and I can't see a way to force generation of old format bundle. It's breaks compatibility with older versions of bzr.

When I try to pull bundle I have this error:

[bialix@donkey ~/repo/bzr.easy_install]$ bzr -Derror --no-plugins pull .bundle
bzr: ERROR: bzrlib.errors.NotBranchError: Not a branch: /webhomes/bialix/repo/bzr.easy_install/.bundle/

Traceback (most recent call last):
  File "/usr/local/lib/python2.5/site-packages/bzrlib/commands.py", line 729, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/commands.py", line 691, in run_bzr
    ret = run(*run_argv)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/commands.py", line 389, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/builtins.py", line 610, in run
    branch_from = Branch.open(location)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/branch.py", line 131, in open
    control = bzrdir.BzrDir.open(base, _unsupported)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 529, in open
    return BzrDir.open_from_transport(t, _unsupported=_unsupported)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 566, in open_from_transport
    redirected)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/transport/__init__.py", line 1166, in do_catching_redirections
    return action(transport)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 543, in find_format
    transport, _server_formats=_server_formats)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/bzrdir.py", line 1248, in find_format
    raise errors.NotBranchError(path=transport.base)
NotBranchError: Not a branch: /webhomes/bialix/repo/bzr.easy_install/.bundle/

bzr 0.18.0 on python 2.5.0.final.0 (freebsd5)
arguments: ['/usr/local/bin/bzr', '-Derror', '--no-plugins', 'pull', '.bundle']

** please send this report to <email address hidden>

[John A Meinel (jameinel)]

'bzr bundle' changed to creating merge directives with a new format bundle internally.

They are a lot smaller and more efficient, but older clients will not be able to read them.

As part of the fix for bug #129504, it would be reasonable to change:

'bzr bundle' to be a separate command from 'bzr send'. And we can make it deprecated/hidden.

It should still create Bundle format 8/9, while 'bzr send -o' can generate the new format bundles.

It would be reasonable that 'bzr bundle' to issue a note saying that you can use 'bzr send -o' instead, which will generate a smaller/clearer/etc format.

There are some other incompatibilities. (bzr send *always* requires a target branch, while bzr bundle -r -2..-1 would just generate the bundle to recreate -1 from -2. It is possible that 'bzr send -r -2..-1 .' would do the same)

The new bundle format is pretty clear that you need at least bzr 0.19, since it has that in the header.

[John A Meinel (jameinel)]

I think this should be fixed before 0.19 is released, along with bug #129504

[Aaron Bentley (abentley)]

--format 0.9 will produce output compatible with Bazaar 0.12 and later.