[MERGE] special case the no-args version of revision-info

[Michael Hudson]

John Arbash Meinel wrote:
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> Michael Hudson wrote:
>> Michael Hudson wrote:
>>> Ian Clatworthy wrote:
>>>> Michael Hudson wrote:
>>>>> Reading this post:
>>>>>
>>>>> http://blog.orebokech.com/2008/03/emacs-in-bzr-initial-impressions.html
>>>>>
>>>>> I was prompted to look at the implementation of version-info.  It seems
>>>>> to be a bit whole-history happy: RevisionSpec.in_branch calls
>>>>> revsion_history() and the command implementation calls
>>>>> get_revid_to_revno_map().
>>>>>
>>>>> This bundle just makes it really fast for the no-arg case.  Perhaps it
>>>>> would be better to improve the interpretation of "revno:-$SMALLINT".
>>>> Trying your patch on bzr.dev, it doesn't seem to make much difference to
>>>> the results of 'time bzr version-info'. Maybe I'm doing something wrong.
>>>> What speed-up are you seeing?
>>> Oh, I should have said: on emacs, 6s -> 0.2s.
>> Sorry for the fast follow-up: I think this is a branch5/branch6 thing.
>> bzr.dev is branch5, the emacs import is branch6.
>>
>> Cheers,
>> mwh
>>
>>
> 
> Is bzr.dev still a branch5? 

Mine was!  Don't know how that happened, the one on bazaar-vcs.org isn't.

Cheers,
mwh