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bisect: libify bisect_next_all

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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.

All the functions calling `bisect_next_all()` are already able to
handle return values from it.

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>
This commit is contained in:
Pranit Bauva
2020-02-17 09:40:39 +01:00
committed by Junio C Hamano
parent 9ec598e0d5
commit 6c69f22233
2 changed files with 27 additions and 12 deletions
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10
bisect.h
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@@ -39,16 +39,22 @@ struct rev_list_info {
* BISECT_FAILED error code: default error code.
* BISECT_ONLY_SKIPPED_LEFT error code: only skipped
* commits left to be tested.
* BISECT_MERGE_BASE_CHECK error code: merge base check failed.
* BISECT_NO_TESTABLE_COMMIT error code: no testable commit found.
* BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND early success code:
* first term_bad commit found.
* BISECT_INTERNAL_SUCCESS_MERGE_BASE early success
* code: found merge base that should be tested.
* Early success code BISECT_INTERNAL_SUCCESS_MERGE_BASE
* should be only an internal code.
* Early success codes BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND and
* BISECT_INTERNAL_SUCCESS_MERGE_BASE should be only internal codes.
*/
enum bisect_error {
BISECT_OK = 0,
BISECT_FAILED = -1,
BISECT_ONLY_SKIPPED_LEFT = -2,
BISECT_MERGE_BASE_CHECK = -3,
BISECT_NO_TESTABLE_COMMIT = -4,
BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND = -10,
BISECT_INTERNAL_SUCCESS_MERGE_BASE = -11
};