On 08.03.13 09:15, Junio C Hamano wrote:
> Torsten Bögershausen <tbo...@web.de> writes:
>>> Doesn't this make one wonder why a separate bit and implementation
>>> is necessary to say "I am not interested in untracked files" when
>>> "-uno" option is already there?
>> I need to admit that I wasn't aware about "git status -uno".
> Not so fast. I did not ask you "Why do you need a new one to solve
> the same problem -uno already solves?"
>> Thinking about it, how many git users are aware of the speed penalty
>> when running git status to find out which (tracked) files they had changed?
>> Or to put it the other way, when a developer wants a quick overview
>> about the files she changed, then git status -uno may be a good and fast
>> Does it make sence to stress put that someway in the documentation?
>> diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt
>> index 9f1ef9a..360d813 100644
>> --- a/Documentation/git-status.txt
>> +++ b/Documentation/git-status.txt
>> @@ -51,13 +51,18 @@ default is 'normal', i.e. show untracked files and
>> The possible options are:
>> - - 'no' - Show no untracked files
>> + - 'no' - Show no untracked files (this is fastest)
> There is a trade-off around the use of -uno between safety and
> performance. The default is not to use -uno so that you will not
> forget to add a file you newly created (i.e safety). You would pay
> for the safety with the cost to find such untracked files (i.e.
> I suspect that the documentation was written with the assumption
> that at least for the people who are reading this part of the
> documentation, the trade-off is obvious. In order to find more
> information, you naturally need to spend more cycles.
> If the trade-off is not so obvious, however, I do not object at all
> to describing it. But if we are to do so, I do object to mentioning
> only one side of the trade-off. People who choose "fastest" needs
> to be made very aware that they are disabling "safety".
> That brings us back to the "Why a separate implementation when -uno
> is there?" question.
The short version:
The -uno option does exactly what the -c option intended to do ;-)
(The code path to disable the "expensive" call to read_directory_recursive()
in dir.c is slightly different).
Making benchmarks (again, sorry for the noise) shows that -uno and -c are
making 5 git status on a linux tree, take the best of 5:
git status -uno
(with the patch) git status -c
These are not really scientific numbers, but all in all we have motivation
enough to drop
the "git status -c" patch completely.
My feeling is still that the suggested documentation "this is fastest" is not a
good choice either.
Let me try to come up with a better suggestion.
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