[PATCH v4 0/2] Libify rerere: clear and gc

Hi,

This is an alternate version of the v3 patch: Instead of exposing unlink_rr_item, I have chosen to libify "rerere gc" in order to libify "rerere clear", and it may be argued that this is a pleasant side-effect. I've also included another patch to replace the "die_errno" call with a new "error_errno" call, and I hope this will be used in other places as well. Note one more subtle change: I've chosen to pass "flags" as an argument to both functions for the sake of consistency; if and when rerere grows more command-line options, "flags" can be replaced by a struct containing those parsed options.

Cons: This patch is much larger than v3.

Thanks to: Junio and Jonathan.

Ramkumar Ramachandra (2):
  usage: Introduce error_errno corresponding to die_errno
  rerere: Libify "rerere clear" and "rerere gc"

 builtin/rerere.c  |   81 ++-----------------------------------------
 git-compat-util.h |    1 +
 rerere.c          |   99 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 rerere.h          |    2 +
 usage.c           |   10 +++++
 5 files changed, 116 insertions(+), 77 deletions(-)