Follow-up 465028e0e25 (merge: add missing strbuf_release(),
2021-10-07) and address the "msg" memory leak in this block. We could
free "&msg" before the "goto done" here, but even better is to avoid
allocating it in the first place.
By repeating the "Fast-forward" string here we can avoid using a
"struct strbuf" altogether.
Suggested-by: René Scharfe <l.s.r@xxxxxx>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
builtin/merge.c | 11 ++++-------
t/t6439-merge-co-error-msgs.sh | 1 +
2 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/builtin/merge.c b/builtin/merge.c
index 0f093f2a4f2..91dd5435c59 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -1560,7 +1560,9 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
!common->next &&
oideq(&common->item->object.oid, &head_commit->object.oid)) {
/* Again the most common case of merging one remote. */
- struct strbuf msg = STRBUF_INIT;
+ const char *msg = have_message ?
+ "Fast-forward (no commit created; -m option ignored)" :
+ "Fast-forward";
struct commit *commit;
if (verbosity >= 0) {
@@ -1570,10 +1572,6 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
find_unique_abbrev(&remoteheads->item->object.oid,
DEFAULT_ABBREV));
}
- strbuf_addstr(&msg, "Fast-forward");
- if (have_message)
- strbuf_addstr(&msg,
- " (no commit created; -m option ignored)");
commit = remoteheads->item;
if (!commit) {
ret = 1;
@@ -1592,9 +1590,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
goto done;
}
- finish(head_commit, remoteheads, &commit->object.oid, msg.buf);
+ finish(head_commit, remoteheads, &commit->object.oid, msg);
remove_merge_branch_state(the_repository);
- strbuf_release(&msg);
goto done;
} else if (!remoteheads->next && common->next)
;
diff --git a/t/t6439-merge-co-error-msgs.sh b/t/t6439-merge-co-error-msgs.sh
index 52cf0c87690..0cbec57cdab 100755
--- a/t/t6439-merge-co-error-msgs.sh
+++ b/t/t6439-merge-co-error-msgs.sh
@@ -5,6 +5,7 @@ test_description='unpack-trees error messages'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
--
2.39.0.1195.gabc92c078c4
