Error converting P4 repo to Mercurial

[Frank Kingswood]

Ron Gery wrote:
> I am new to Mercurial and know nothing about Python. I am running on 
> Windows XP with the P4 depot hosted on the local machine. I'm trying to 
> convert my P4 repo to Mercurial, and regardless of what variations I've 
> tried for specifying the source (local path, depot address, changelist 
> limitations), I soon get the following error message (about 20 
> changelists, ending with the most recent one, are shown preceding the 
> error):
> 
> ** unknown exception encountered, details follow
> ** report bug details to http://mercurial.selenic.com/bts/
> ** or mercurial at selenic.com
> ** Mercurial Distributed SCM (version 1.3)
> ** Extensions loaded: extdiff, convert
> Traceback (most recent call last):
>   File "hg", line 38, in <module>
>   File "mercurial\dispatch.pyc", line 16, in run
>   File "mercurial\dispatch.pyc", line 27, in dispatch
>   File "mercurial\dispatch.pyc", line 43, in _runcatch
>   File "mercurial\dispatch.pyc", line 449, in _dispatch
>   File "mercurial\dispatch.pyc", line 317, in runcommand
>   File "mercurial\dispatch.pyc", line 501, in _runcommand
>   File "mercurial\dispatch.pyc", line 454, in checkargs
>   File "mercurial\dispatch.pyc", line 448, in <lambda>
>   File "mercurial\util.pyc", line 370, in check
>   File "hgext\convert\__init__.pyc", line 232, in convert
>   File "hgext\convert\convcmd.pyc", line 369, in convert
>   File "hgext\convert\convcmd.pyc", line 54, in convertsource
>   File "hgext\convert\p4.pyc", line 51, in __init__
>   File "hgext\convert\p4.pyc", line 109, in _parse
> EOFError: EOF read where object expected
> 
> My invocation looked like:
> hg convert //depot/gmg/... e:\test
> 
> I would simply love to be able to bring my history with me as I move to 
> Mercurial, but I'm out of my scope (and available time) in trying to 
> track this problem down. Is the above something other people have run 
> into, or is this cause by some sort of corruption in my P4 repo?

Thanks for your report. Can you re-run with -v to get more detail on the 
conversion. In your conversion there was an error while executing a p4 
describe command on the changelist *following* the last one you'll see from 
the conversion with -v.
It would be very helpful if you could post or mail the output from
	p4 describe <nextchangelist>
where you should insert the number of the changelist following the last one 
that was successfully read.

Alternatively, and if you are happy to try, you could put a line (properly 
indented)
	print cmd
immediately before line 109 in hgext\convert\p4.py in your Mercurial 
installation. This will show the changelist that causes the issue.

Frank