Bo Yang 83361f5cde Add parent rewriting to line history browser ...

Walking forward through history (i.e., topologically earliest
commits first), we filter the parent list of every commit as
follows. Consider a parent P:
 - If P touches any of the interesting line ranges, we keep it.
 - If P is a merge and it takes all the interesting line ranges
   from one of its parents, P is rewritten to this parent, else
   we keep P.
 - Otherwise, P is rewritten to its (only) parent P^.

Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2010-08-12 19:10:02 -07:00

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