[tahoe-lafs-trac-stream] [tahoe-lafs] #1536: nicely report any errors involving finding and using ifconfig

[tahoe-lafs]

#1536: nicely report any errors involving finding and using ifconfig
-------------------------------------------+---------------------------
 Reporter:  zooko                          |          Owner:
     Type:  defect                         |         Status:  new
 Priority:  major                          |      Milestone:  undecided
Component:  code-network                   |        Version:  1.9.0a1
 Keywords:  error pyutil iputil archlinux  |  Launchpad Bug:
-------------------------------------------+---------------------------
 A couple of users have recently [http://tahoe-lafs.org/pipermail/tahoe-
 dev/2011-September/006676.html reported] errors from [http://tahoe-
 lafs.org/trac/tahoe-
 lafs/browser/trunk/src/allmydata/util/iputil.py?annotate=blame&rev=4971#L177
 iputil] when it couldn't find their {{{ifconfig}}} executable, e.g.:

 {{{
 [Failure instance: Traceback: <type 'exceptions.OSError'>: [Errno 2] No
 such file or directory
 /usr/lib/python2.7/threading.py:525:__bootstrap
 /usr/lib/python2.7/threading.py:552:__bootstrap_inner
 /usr/lib/python2.7/threading.py:505:run
 - --- <exception caught here> ---
 /usr/lib/python2.7/site-packages/twisted/python/threadpool.py:207:_worker
 /usr/lib/python2.7/site-
 packages/twisted/python/context.py:118:callWithContext
 /usr/lib/python2.7/site-
 packages/twisted/python/context.py:81:callWithContext
 /home/kytv/tahoe/allmydata-
 tahoe-1.8.3/src/allmydata/util/iputil.py:222:_synchronously_find_addresses_via_config
 /home/kytv/tahoe/allmydata-
 tahoe-1.8.3/src/allmydata/util/iputil.py:236:_query
 /usr/lib/python2.7/subprocess.py:679:__init__
 /usr/lib/python2.7/subprocess.py:1228:_execute_child
 ]
 calling os.abort()
 }}}
 We should catch this exception and report a useful error message, saying
 what the {{{sys.platform}}} was and asking them to report about their
 {{{ifconfig}}}, like David-Sarah [http://tahoe-lafs.org/pipermail/tahoe-
 dev/2011-September/006677.html did] on the list:
 {{{
 which ifconfig
 ifconfig --help
 ifconfig
 }}}

-- 
Ticket URL: <http://tahoe-lafs.org/trac/tahoe-lafs/ticket/1536>
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