[PATCH 00/18] Search and set up repository early for builtin commands

This is a simpler part of my Git setup cleanup WIP [1], to introduce RUN_SETUP_GENTLY and make most of commands use it.

The commands that do not have RUN_SETUP* are:
 - Init/Clone commands
 - Server commands
 - Helpers that have nothing to do with repositories
 - git-rev-parse

[1] http://mid.gmane.org/1266336317-607-1-git-send-email-pclouds@gmail.com

Nguyễn Thái Ngọc Duy (18):
  builtin: introduce startup_info struct
  builtin: Support RUN_SETUP_GENTLY to set up repository early if found
  config: use RUN_SETUP_GENTLY
  hash-object: use RUN_SETUP_GENTLY
  shortlog: use RUN_SETUP_GENTLY
  grep: use RUN_SETUP_GENTLY
  builtin: USE_PAGER should not be used without RUN_SETUP*
  archive: use RUN_SETUP_GENTLY
  mailinfo: use RUN_SETUP_GENTLY
  check-ref-format: use RUN_SETUP_GENTLY
  verify-pack: use RUN_SETUP_GENTLY
  apply: use RUN_SETUP_GENTLY
  bundle: use RUN_SETUP_GENTLY
  diff: use RUN_SETUP_GENTLY
  help: use RUN_SETUP_GENTLY
  ls-remote: use RUN_SETUP_GENTLY
  var: use RUN_SETUP_GENTLY
  merge-file: use RUN_SETUP_GENTLY

 builtin/apply.c       |    7 ++---
 builtin/archive.c     |    2 +-
 builtin/bundle.c      |    6 +---
 builtin/config.c      |    6 +---
 builtin/diff.c        |    6 +---
 builtin/grep.c        |    9 ++-----
 builtin/hash-object.c |    9 ++++---
 builtin/help.c        |    2 -
 builtin/ls-remote.c   |    3 --
 builtin/mailinfo.c    |    3 --
 builtin/merge-file.c  |    4 +--
 builtin/shortlog.c    |    4 +--
 builtin/var.c         |    2 -
 cache.h               |    7 +++++
 environment.c         |    1 +
 git.c                 |   61 ++++++++++++++++++++++++++++---------------------
 setup.c               |   14 ++++++++++-
 17 files changed, 76 insertions(+), 70 deletions(-)