Missing revision error on pushed loom

[David Strauss]

[straussd@web3 ~]$ mkdir loom
[straussd@web3 ~]$ cd loom/
[straussd@web3 loom]$ bzr init
Standalone tree (format: pack-0.92)
Location:
  branch root: .
[straussd@web3 loom]$ bzr nick "My loom"
[straussd@web3 loom]$ bzr loomify
[straussd@web3 loom]$ bzr record "Loomified"
Loom recorded.
[straussd@web3 loom]$ bzr push ../loom2
Created new branch.
[straussd@web3 loom]$ cd ../loom2
[straussd@web3 loom2]$ bzr create-thread "Another thread"
[straussd@web3 loom2]$ bzr record
bzr: ERROR: command 'record' requires argument MESSAGE
[straussd@web3 loom2]$ bzr record "Save this loom."
bzr: ERROR: bzrlib.errors.NoSuchRevision: KnitPackRepository('file:///home/straussd/loom2/.bzr/repository/') has no revision ('<email address hidden>',)

Traceback:

this is a debug log for diagnosing/reporting problems in bzr
you can delete or truncate this file, or include sections in
bug reports to https://bugs.launchpad.net/bzr/+filebug

Thu 2009-01-29 00:42:12 +0000
0.019 bzr arguments: [u'record', u'Hi']
0.022 looking for plugins in /home/straussd/.bazaar/plugins
0.022 looking for plugins in /usr/lib64/python2.4/site-packages/bzrlib/plugins
0.069 looking for plugins in /usr/lib/python2.4/site-packages/bzrlib/plugins
0.069 Plugin name bzrtools already loaded
0.104 encoding stdout as sys.stdout encoding 'UTF-8'
0.138 Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/bzrlib/commands.py", line 893, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib64/python2.4/site-packages/bzrlib/commands.py", line 839, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib64/python2.4/site-packages/bzrlib/commands.py", line 539, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.4/site-packages/bzrlib/plugins/loom/commands.py", line 243, in run
    abranch.record_loom(message)
  File "/usr/lib64/python2.4/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/plugins/loom/branch.py", line 472, in record_loom
    old_threads = self.get_threads(state.get_basis_revision_id())
  File "/usr/lib/python2.4/site-packages/bzrlib/plugins/loom/branch.py", line 343, in get_threads
    content = self._loom_content(rev_id)
  File "/usr/lib/python2.4/site-packages/bzrlib/plugins/loom/branch.py", line 392, in _loom_content
    tree = self.repository.revision_tree(rev_id)
  File "/usr/lib64/python2.4/site-packages/bzrlib/decorators.py", line 138, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib64/python2.4/site-packages/bzrlib/repository.py", line 1809, in revision_tree
    inv = self.get_revision_inventory(revision_id)
  File "/usr/lib64/python2.4/site-packages/bzrlib/decorators.py", line 138, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib64/python2.4/site-packages/bzrlib/repository.py", line 1772, in get_revision_inventory
    return self.get_inventory(revision_id)
  File "/usr/lib64/python2.4/site-packages/bzrlib/decorators.py", line 138, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib64/python2.4/site-packages/bzrlib/repository.py", line 1663, in get_inventory
    return self.iter_inventories([revision_id]).next()
  File "/usr/lib64/python2.4/site-packages/bzrlib/repository.py", line 1681, in _iter_inventories
    for text, revision_id in self._iter_inventory_xmls(revision_ids):
  File "/usr/lib64/python2.4/site-packages/bzrlib/repository.py", line 1692, in _iter_inventory_xmls
    raise errors.NoSuchRevision(self, record.key)

NoSuchRevision: KnitPackRepository('file:///home/straussd/loom3/.bzr/repository/') has no revision ('<email address hidden>',)

0.140 return code 4

[Robert Collins (lifeless)]

Can you run 'bzr cat-revision <email address hidden>' in each of the loom directories please.

-Rob

[David Strauss (davidstrauss)]

[straussd@web3 loom]$ bzr cat-revision <email address hidden>
bzr: ERROR: The repository file:///home/straussd/loom/.bzr/repository/ contains no revision <email address hidden>.
[straussd@web3 loom]$ cd ../loom2
[straussd@web3 loom2]$ bzr cat-revision <email address hidden>
bzr: ERROR: The repository file:///home/straussd/loom2/.bzr/repository/ contains no revision <email address hidden>.

[Robert Collins (lifeless)]

Clearly your loom contains a reference to a revision that doesn't exist [anymore]. Had you been doing things behind bzr's back (moving .bzr dirs around..., restoring backups?) or had disk/file system errors?

[Robert Collins (lifeless)]

I think this was due to the same bug thats caused fetching from bzr+ssh to fail spectacularly, it certainly works with trunk of bzr + trunk of loom.

Sorry for the pain, but it was essentially a stale loom codebase causing the issue.