Bazaar, Launchpad and Mercurial

[Russel Winder]

On Wed, 2012-06-13 at 20:10 +0200, Gour wrote:
[...]
> Does it mean that end result is that one can forget about mirroring hg
> (bibucket) branches at Launchpad?

Apparently yes, but not for the reason that bzr-hg is missing. Launchpad
clearly has a technique but it finds a problem that the Hg → Git → Bzr
route does not find:

…
2012-06-12 15:18:00 INFO    fetching manifests 2490/2631
2012-06-12 15:19:00 INFO    fetching manifests 2534/2631
2012-06-12 15:19:51 INFO    
Traceback (most recent call last):
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/scripts/code-import-worker.py", line 99, in <module>
    sys.exit(script.main())
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/scripts/code-import-worker.py", line 94, in main
    return import_worker.run()
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/lib/lp/codehosting/codeimport/worker.py", line 591, in run
    return self._doImport()
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/lib/lp/codehosting/codeimport/worker.py", line 745, in _doImport
    inter_branch.fetch(limit=revision_limit)
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/branch.py", line 483, in fetch
    inter.fetch(revision_id=stop_revision, limit=limit)
  File "<string>", line 4, in fetch_write_locked
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/fetch.py", line 766, in fetch
    self.addchangegroup(cg, mapping, limit=limit)
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/fetch.py", line 624, in addchangegroup
    self._target_overlay.remember_manifest_texts(manifests)
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/overlay.py", line 132, in remember_manifest_texts
    ((FulltextContentFactory((revid,), [(p,) for p in parent_revids], None, str(text)) for (revid, parent_revids, text) in entries)))
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/eggs/bzr-2.5.0.lp.2-py2.6-linux-i686.egg/bzrlib/knit.py", line 1589, in insert_record_stream
    for record in stream:
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/overlay.py", line 132, in <genexpr>
    ((FulltextContentFactory((revid,), [(p,) for p in parent_revids], None, str(text)) for (revid, parent_revids, text) in entries)))
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/fetch.py", line 601, in _unpack_manifests
    kind_map)
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/fetch.py", line 569, in _process_manifest
    self.get_parent_map([revid])[revid]))
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/fetch.py", line 386, in _get_inventories_or_manifests
    yield self._target_overlay.get_manifest_and_flags_by_revid(revid)[0]
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/overlay.py", line 272, in get_manifest_and_flags_by_revid
    return self._reconstruct_manifest_and_flags_by_revid(revid)
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/bzrplugins/hg/overlay.py", line 275, in _reconstruct_manifest_and_flags_by_revid
    tree = self.repo.revision_tree(revid)
  File "<string>", line 4, in revision_tree_read_locked
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/eggs/bzr-2.5.0.lp.2-py2.6-linux-i686.egg/bzrlib/vf_repository.py", line 1784, in revision_tree
    inv = self.get_inventory(revision_id)
  File "<string>", line 4, in get_inventory_read_locked
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/eggs/bzr-2.5.0.lp.2-py2.6-linux-i686.egg/bzrlib/vf_repository.py", line 1682, in get_inventory
    return self.iter_inventories([revision_id]).next()
  File "/srv/importd.launchpad.net/production/launchpad-rev-15389/eggs/bzr-2.5.0.lp.2-py2.6-linux-i686.egg/bzrlib/repofmt/groupcompress_repo.py", line 981, in _iter_inventories
    raise errors.NoSuchRevision(self, record.key)
bzrlib.errors.NoSuchRevision: CHKInventoryRepository('file:///srv/importd.launchpad.net/data/worker-for-branch-628527/bzr_branch/.bzr/repository/') has no revision ('hg-v1:089a9ecfbd7f558b20b21ca03e5400c8e69ccf80',)
Import failed:
Traceback (most recent call last):
Failure: twisted.internet.error.ProcessTerminated: A process has ended with a probable error condition: process ended with exit code 1.

-- 
Russel.
=============================================================================
Dr Russel Winder      t: +44 20 7585 2200   voip: sip:russel.winder at ekiga.net
41 Buckmaster Road    m: +44 7770 465 077   xmpp: russel at winder.org.uk
London SW11 1EN, UK   w: www.russel.org.uk  skype: russel_winder
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