bisect: libify `handle_bad_merge_base` and its dependents
Since we want to get rid of git-bisect.sh, it would be necessary to
convert those exit() calls to return statements so that errors can be
reported.
Emulate try catch in C by converting `exit(<positive-value>)` to
`return <negative-value>`. Follow POSIX conventions to return
<negative-value> to indicate error.
Update all callers to handle the error returns.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com>
Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com>
Signed-off-by: Miriam Rubio <mirucam@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/bisect.h b/bisect.h
index f68ae85..0d97581 100644
--- a/bisect.h
+++ b/bisect.h
@@ -48,6 +48,7 @@ enum bisect_error {
BISECT_OK = 0,
BISECT_FAILED = -1,
BISECT_ONLY_SKIPPED_LEFT = -2,
+ BISECT_MERGE_BASE_CHECK = -3,
BISECT_INTERNAL_SUCCESS_MERGE_BASE = -11
};
