[PATCH 0/3] optimize git-contacts

This patch series aims to make contrib/git-contacts faster by reducing the number of expensive git-blame invocations it makes. It does so by taking advantage of git-blame's new ability to accept multiple -L ranges in a single invocation [1] (es/blame-L-twice in 'next').

Some numbers, given a randomly chosen range of commits:

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

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

[1]: http://thread.gmane.org/gmane.comp.version-control.git/231739

Eric Sunshine (3):
  contacts: validate hunk length earlier
  contacts: gather all blame sources prior to invoking git-blame
  contacts: reduce git-blame invocations

 contrib/contacts/git-contacts | 31 ++++++++++++++++++++++---------
 1 file changed, 22 insertions(+), 9 deletions(-)