[tahoe-lafs-trac-stream] [tahoe-lafs] #1643: presence of MDMF in aliases break the CLI < v1.9.0

[tahoe-lafs]

#1643: presence of MDMF in aliases break the CLI < v1.9.0
-------------------------------------------------+-------------------------
 Reporter:  zooko                                |          Owner:
     Type:  defect                               |         Status:  new
 Priority:  major                                |      Milestone:
Component:  code-mutable                         |  undecided
 Keywords:  versioning forward-compatibility     |        Version:  1.9.0
  backward-compatibility mutable mdmf aliases    |  Launchpad Bug:
-------------------------------------------------+-------------------------
 I created some MDMF dirs and put them into {{{~/.tahoe/private/aliases}}}
 with a recent trunk snapshot (very likely it behaves the same as 1.9.0
 does in this respect). Later I switched to Tahoe-LAFS v.1.8.3, and the CLI
 stopped working. Moving the {{{aliases}}} file aside fixes it, and putting
 the {{{aliases}}} file back breaks it again
 {{{
 $ tahoe mkdir
 Traceback (most recent call last):
   File "/home/zooko/playground/tahoe-lafs/1.8.3/support/bin/tahoe", line
 9, in <module>
     load_entry_point('allmydata-tahoe==1.8.3', 'console_scripts',
 'tahoe')()
   File "/home/zooko/playground/tahoe-
 lafs/1.8.3/src/allmydata/scripts/runner.py", line 113, in run
     rc = runner(sys.argv[1:], install_node_control=install_node_control)
   File "/home/zooko/playground/tahoe-
 lafs/1.8.3/src/allmydata/scripts/runner.py", line 67, in runner
     config.parseOptions(argv)
   File "/usr/local/lib/python2.7/dist-packages/Twisted-11.0.0-py2.7-linux-
 x86_64.egg/twisted/python/usage.py", line 231, in parseOptions
     self.subOptions.parseOptions(rest)
   File "/usr/local/lib/python2.7/dist-packages/Twisted-11.0.0-py2.7-linux-
 x86_64.egg/twisted/python/usage.py", line 241, in parseOptions
     self.postOptions()
   File "/home/zooko/playground/tahoe-
 lafs/1.8.3/src/allmydata/scripts/cli.py", line 46, in postOptions
     aliases = get_aliases(self['node-directory'])
   File "/home/zooko/playground/tahoe-
 lafs/1.8.3/src/allmydata/scripts/common.py", line 105, in get_aliases
     aliases[name] = uri.from_string_dirnode(cap).to_string()
   File "/home/zooko/playground/tahoe-lafs/1.8.3/src/allmydata/uri.py",
 line 692, in from_string_dirnode
     assert IDirnodeURI.providedBy(u)
 AssertionError
 $ mv ~/.tahoe/private/aliases ~/.tahoe/private/1.9-aliases
 $ tahoe mkdir
 URI:DIR2:CENSORED
 $ tahoe --version
 allmydata-tahoe: 1.8.3,
 foolscap: 0.6.1,
 pycryptopp: 0.5.29-r774,
 zfec: 1.4.5,
 Twisted: 11.0.0,
 Nevow: 0.10.0,
 zope.interface: unknown,
 python: 2.7.1+,
 platform: Linux-Ubuntu_11.04-x86_64-64bit_ELF,
 pyOpenSSL: 0.10,
 simplejson: 2.1.2,
 pycrypto: 2.4.1,
 pyasn1: unknown,
 mock: 0.8.0beta3,
 sqlite3: 2.6.0 [sqlite 3.7.4],
 setuptools: 0.6c16dev3
 }}}

-- 
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1643>
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