[PATCH v3 0/4] Improve push performance with lots of refs

This series contains patches to address a significant push performance regression in repositories with large amounts of refs. It avoids performing expensive edge marking unless the repository is shallow.

The first patch in the series is a fix for a minor typo I discovered when editing the documentation. The second patch implements git rev-list --objects-edge-aggressive, and the third patch ensures it's used for shallow repos only. The final patch ensures that sending packs to shallow clients use --object-edge-aggressive as well.

The only change from v2 is the addition of a fourth patch, which fixes t5500. It's necessary because the test wants packs for fetches to shallow clones to be minimal.

I'm not especially thrilled with having to provide a --shallow command line argument, but the alternative is to buffer a potentially large amount of data in order to determine whether the remote side is shallow.

The original fix was suggested by Duy Nguyen.

brian m. carlson (4):
  Documentation: add missing article in rev-list-options.txt
  rev-list: add an option to mark fewer edges as uninteresting
  pack-objects: use --objects-edge-aggressive only for shallow repos
  upload-pack: use --objects-edge-aggressive for shallow fetches

 Documentation/git-pack-objects.txt | 7 ++++++-
 Documentation/git-rev-list.txt     | 3 ++-
 Documentation/rev-list-options.txt | 7 ++++++-
 builtin/pack-objects.c             | 7 ++++++-
 list-objects.c                     | 4 ++--
 revision.c                         | 6 ++++++
 revision.h                         | 1 +
 upload-pack.c                      | 4 +++-
 8 files changed, 32 insertions(+), 7 deletions(-)