Thread (3 messages) flat view 3 messages, 3 authors, 2016-06-15

Re: [PATCH v2 1/3] diffcore-pickaxe: remove unnecessary call to get_textconv()

From: Simon Ruderich <hidden>
Date: 2016-06-15 22:56:42

On Thu, Apr 04, 2013 at 01:48:52PM -0700, Junio C Hamano wrote:
If I am reading the code correctly, it is has_changes(), which is
used for "log -S" (not "log -G" that uses diff_grep()), that does
the unnecessary get_textconv() unconditionally.  The way diff_grep()
divides the work to make fill_one() responsible for filling the
textconv as necessary is internally consistent, and there is no
unnecessary call.
Yes, of course. I meant has_changes() which has the unnecessary
call.
Perhaps...

	The fill_one() function is responsible for finding and
	filling the textconv filter as necessary, and is called by
	diff_grep() function that implements "git log -G<pattern>".

	The has_changes() function calls get_textconv() for two
	sides being compared, before it checks to see if it was
	asked to perform the pickaxe limiting with the -S option.
	Move the code around to avoid this wastage.  After that,
	fill_one() is called to use the textconv.

	By adding get_textconv() to diff_grep() and relieving
	fill_one() of responsibility to find the textconv filter, we
	can avoid calling get_textconv() twice.
Sounds good to me.

Regards
Simon
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