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git/contrib/contacts
Eric Sunshine 4c70cfbfbc contacts: reduce git-blame invocations
git-contacts invokes git-blame once for each patch hunk it encounters.
No attempt is made to consolidate invocations for multiple hunks
referencing the same file at the same revision. This can become
expensive quickly.

Reduce the number of git-blame invocations by taking advantage of the
ability to specify multiple -L ranges for a single invocation.

Without this patch, on a randomly chosen range of commits:

  % time git-contacts 25fba78d36be6297^..23c339c0f262aad2 >/dev/null
  real  0m6.142s
  user  0m5.429s
  sys   0m0.356s

With this patch:

  % time git-contacts 25fba78d36be6297^..23c339c0f262aad2 >/dev/null
  real  0m2.285s
  user  0m2.093s
  sys   0m0.165s

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-13 09:09:03 -07:00
..
git-contacts contacts: reduce git-blame invocations 2013-08-13 09:09:03 -07:00
git-contacts.txt contrib: contacts: add documentation 2013-07-21 15:15:20 -07:00