Re: [PATCH 3/3] git-p4: improve submit performance on new P4 servers

[Nicolas Pitre <nico@fluxnic.net>]

On Thu, 21 Jan 2010, Pal-Kristian Engstad wrote:

> Improve git-p4 submit performance on newer (from 2009.2) Perforce
> servers by changing "p4 diff -du" to "p4 diff -dub". This change is
> harmless since the output is only used for display purposes.
> 
> Signed-off-by: Pal-Kristian Engstad <pal_engstad@naughtydog.com>

Why is the b flag impacting performance?

And even if for display purposes, why might you wish not to see 
differences in whitespace changes?

> ---
>  contrib/fast-import/git-p4 |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
> index ab538b3..ec26cac 100755
> --- a/contrib/fast-import/git-p4
> +++ b/contrib/fast-import/git-p4
> @@ -715,7 +715,7 @@ class P4Submit(Command):
>              submitTemplate = self.prepareLogMessage(template, logMessage)
>              if os.environ.has_key("P4DIFF"):
>                  del(os.environ["P4DIFF"])
> -            diff = p4_read_pipe("diff -du ...")
> +            diff = p4_read_pipe("diff -dub ...")
>  
>              newdiff = ""
>              for newFile in filesToAdd:
> -- 
> 1.6.5.2.6.gc3c1e.dirty
> 
> 
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