[PATCH v5 0/7] Rewrite `git_config()` using config-set API

[PATCH v5]: New patch added (3/7). git_config() now returns void.

[PATCH v4]: One style nit corrected, also added key to error messages.
	Diff with v3 at the bottom for easy review.

[PATCH V3]:All the suggestions in [3] applied. Built on top of [1].

[PATCH V2]: All the suggestions in [2] incorporated. git_config() now follows
	correct parsing order. Reordered the patches. Removed xfuncname patch
	as it was unnecssary.

This series builds on the top of 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/254286
[2]: http://thread.gmane.org/gmane.comp.version-control.git/254101
[3]: http://thread.gmane.org/gmane.comp.version-control.git/254211

Tanay Abhra (7):
  config.c: fix accuracy of line number in errors
  add line number and file name info to `config_set`
  change `git_config()` return value to void
  rewrite git_config() to use the config-set API
  add a test for semantic errors in config files
  config: add `git_die_config()` to the config-set API
  add tests for `git_config_get_string_const()`

 Documentation/technical/api-config.txt |   5 ++
 branch.c                               |   5 +-
 cache.h                                |  27 ++++++-
 config.c                               | 131 +++++++++++++++++++++++++++++----
 t/t1308-config-set.sh                  |  21 ++++++
 t/t4055-diff-context.sh                |   2 +-
 test-config.c                          |  10 +++
 7 files changed, 181 insertions(+), 20 deletions(-)

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1.9.0.GIT