[PATCH v2 0/6] convert various shell functions in git-bisect to C

A previous version is available here[1].

Changes wrt previous version:
 * Use STRING_LIST_INIT_NODUP to avoid leaks in bisect_clean_state()
 * Use test_path_is_missing in the patch 2/6
 * drop file_size()
 * move is_empty_file() method from builtin/am.c to wrapper.c
 * use static for methods
 * remove the variable status in bisect_reset() altogether and put the whole
   thing inside the if block.
 * one more method converted namely bisect_write().

An important thing to be discussed: In shell script while reading/writing files, no error is reported but we can actually report it in C. In this series I have tried to output error wherever possible. What are your views?

[1]: http://thread.gmane.org/gmane.comp.version-control.git/296717

Pranit Bauva (6):
  bisect--helper: `bisect_clean_state` shell function in C
  t6030: explicitly test for bisection cleanup
  wrapper: move is_empty_file() from builtin/am.c
  bisect--helper: `bisect_reset` shell function in C
  bisect--helper: `is_expected_rev` & `check_expected_revs` shell
    function in C
  bisect--helper: `bisect_write` shell function in C

 builtin/am.c                |  16 ----
 builtin/bisect--helper.c    | 194 +++++++++++++++++++++++++++++++++++++++++++-
 cache.h                     |   3 +
 git-bisect.sh               |  97 +++-------------------
 t/t6030-bisect-porcelain.sh |  17 ++++
 wrapper.c                   |  13 +++
 6 files changed, 236 insertions(+), 104 deletions(-)