From: Pranit Bauva <pranit.bauva@xxxxxxxxx>
Add the subcommand to `git bisect--helper` and call it from
git-bisect.sh.
With the conversion of `bisect_auto_next()` from shell to C in a
previous commit, `bisect_start()` can now be fully ported to C.
So let's complete the `--bisect-start` subcommand of
`git bisect--helper` so that it fully implements `bisect_start()`,
and let's use this subcommand in `git-bisect.sh` instead of
`bisect_start()`.
Note that the `eval` in the changed line of `git-bisect.sh` cannot be
dropped: it is necessary because the `rev` and the `tail`
variables may contain multiple, quoted arguments that need to be
passed to `bisect--helper` (without the quotes, naturally).
Mentored-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
Mentored-by: Johannes Schindelin <Johannes.Schindelin@xxxxxx>
Signed-off-by: Pranit Bauva <pranit.bauva@xxxxxxxxx>
Signed-off-by: Tanushree Tumane <tanushreetumane@xxxxxxxxx>
Signed-off-by: Miriam Rubio <mirucam@xxxxxxxxx>
---
builtin/bisect--helper.c | 41 ++++++++++++++++++++++++++--------------
git-bisect.sh | 26 ++-----------------------
2 files changed, 29 insertions(+), 38 deletions(-)
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index 7512b880f0..8adad68268 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -85,6 +85,19 @@ static int one_of(const char *term, ...)
return res;
}
+/*
+ * return code BISECT_INTERNAL_SUCCESS_MERGE_BASE
+ * and BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND are codes
+ * that indicate special success.
+ */
+
+static int is_bisect_success(enum bisect_error res)
+{
+ return !res ||
+ res == BISECT_INTERNAL_SUCCESS_1ST_BAD_FOUND ||
+ res == BISECT_INTERNAL_SUCCESS_MERGE_BASE;
+}
+
static int write_in_file(const char *path, const char *mode, const char *format, va_list args)
{
FILE *fp = NULL;
@@ -609,12 +622,13 @@ static enum bisect_error bisect_auto_next(struct bisect_terms *terms, const char
return bisect_next(terms, prefix);
}
-static int bisect_start(struct bisect_terms *terms, const char **argv, int argc)
+static enum bisect_error bisect_start(struct bisect_terms *terms, const char **argv, int argc)
{
int no_checkout = 0;
int first_parent_only = 0;
int i, has_double_dash = 0, must_write_terms = 0, bad_seen = 0;
- int flags, pathspec_pos, res = 0;
+ int flags, pathspec_pos;
+ enum bisect_error res = BISECT_OK;
struct string_list revs = STRING_LIST_INIT_DUP;
struct string_list states = STRING_LIST_INIT_DUP;
struct strbuf start_head = STRBUF_INIT;
@@ -753,14 +767,7 @@ static int bisect_start(struct bisect_terms *terms, const char **argv, int argc)
* Get rid of any old bisect state.
*/
if (bisect_clean_state())
- return -1;
-
- /*
- * In case of mistaken revs or checkout error, or signals received,
- * "bisect_auto_next" below may exit or misbehave.
- * We have to trap this to be able to clean up using
- * "bisect_clean_state".
- */
+ return BISECT_FAILED;
/*
* Write new start state
@@ -777,7 +784,7 @@ static int bisect_start(struct bisect_terms *terms, const char **argv, int argc)
}
if (update_ref(NULL, "BISECT_HEAD", &oid, NULL, 0,
UPDATE_REFS_MSG_ON_ERR)) {
- res = -1;
+ res = BISECT_FAILED;
goto finish;
}
}
@@ -789,25 +796,31 @@ static int bisect_start(struct bisect_terms *terms, const char **argv, int argc)
for (i = 0; i < states.nr; i++)
if (bisect_write(states.items[i].string,
revs.items[i].string, terms, 1)) {
- res = -1;
+ res = BISECT_FAILED;
goto finish;
}
if (must_write_terms && write_terms(terms->term_bad,
terms->term_good)) {
- res = -1;
+ res = BISECT_FAILED;
goto finish;
}
res = bisect_append_log_quoted(argv);
if (res)
- res = -1;
+ res = BISECT_FAILED;
finish:
string_list_clear(&revs, 0);
string_list_clear(&states, 0);
strbuf_release(&start_head);
strbuf_release(&bisect_names);
+ if (res)
+ return res;
+
+ res = bisect_auto_next(terms, NULL);
+ if (!is_bisect_success(res))
+ bisect_clean_state();
return res;
}
diff --git a/git-bisect.sh b/git-bisect.sh
index ea7e684ebb..dda386bc3a 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -49,27 +49,6 @@ bisect_head()
fi
}
-bisect_start() {
- git bisect--helper --bisect-start $@ || exit
-
- #
- # Change state.
- # In case of mistaken revs or checkout error, or signals received,
- # "bisect_auto_next" below may exit or misbehave.
- # We have to trap this to be able to clean up using
- # "bisect_clean_state".
- #
- trap 'git bisect--helper --bisect-clean-state' 0
- trap 'exit 255' 1 2 3 15
-
- #
- # Check if we can proceed to the next bisect state.
- #
- git bisect--helper --bisect-auto-next || exit
-
- trap '-' 0
-}
-
bisect_skip() {
all=''
for arg in "$@"
@@ -163,8 +142,7 @@ bisect_replay () {
get_terms
case "$command" in
start)
- cmd="bisect_start $rev $tail"
- eval "$cmd" ;;
+ eval "git bisect--helper --bisect-start $rev $tail" ;;
"$TERM_GOOD"|"$TERM_BAD"|skip)
git bisect--helper --bisect-write "$command" "$rev" "$TERM_GOOD" "$TERM_BAD" || exit;;
terms)
@@ -264,7 +242,7 @@ case "$#" in
help)
git bisect -h ;;
start)
- bisect_start "$@" ;;
+ git bisect--helper --bisect-start "$@" ;;
bad|good|new|old|"$TERM_BAD"|"$TERM_GOOD")
bisect_state "$cmd" "$@" ;;
skip)
--
2.25.0
