[PATCH 0/7] Rewrite `git_config()` using config-set API

This series builds on the top of 5def4132 (ta/config-set) in pu or topic[1] in the mailing list with name "git config cache & special querying API utilizing the cache".

This series aims to do these three things,

* Use the config-set API to rewrite git_config().

* Solve any legacy bugs in the previous system while at it.

* To be feature complete compared to the previous git_config() implementation,
  which I think it is now. (added the line number and file name info just for
  completeness)

Also, I haven't yet checked the exact improvements but still as a teaser, git status now only rereads the configuration files twice instead of four times.

[1]: http://thread.gmane.org/gmane.comp.version-control.git/253862

Tanay Abhra (7):

 Documentation/technical/api-config.txt |  5 ++
 cache.h                                |  1 +
 config.c                               | 93 +++++++++++++++++++++++++++++++---
 t/t1308-config-set.sh                  | 17 +++++++
 test-config.c                          | 10 ++++
 userdiff.c                             | 14 ++++-
 6 files changed, 131 insertions(+), 9 deletions(-)