From 9f24f3c719ccb4553f97a861c37cbedcc7357762 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Tue, 7 Feb 2023 00:07:43 +0100 Subject: [PATCH] worktree: fix a trivial leak in prune_worktrees() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We were leaking both the "struct strbuf" in prune_worktrees(), as well as the "path" we got from should_prune_worktree(). Since these were the only two uses of the "struct string_list" let's change it to a "DUP" and push these to it with "string_list_append_nodup()". For the string_list_append_nodup() we could also string_list_append() the main_path.buf, and then strbuf_release(&main_path) right away. But doing it this way avoids an allocation, as we already have the "struct strbuf" prepared for appending to "kept". Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/worktree.c | 6 +++--- t/t2401-worktree-prune.sh | 1 + t/t2406-worktree-repair.sh | 1 + 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/builtin/worktree.c b/builtin/worktree.c index f51c40f1e1..254283aa6f 100644 --- a/builtin/worktree.c +++ b/builtin/worktree.c @@ -173,7 +173,7 @@ static void prune_worktrees(void) { struct strbuf reason = STRBUF_INIT; struct strbuf main_path = STRBUF_INIT; - struct string_list kept = STRING_LIST_INIT_NODUP; + struct string_list kept = STRING_LIST_INIT_DUP; DIR *dir = opendir(git_path("worktrees")); struct dirent *d; if (!dir) @@ -184,14 +184,14 @@ static void prune_worktrees(void) if (should_prune_worktree(d->d_name, &reason, &path, expire)) prune_worktree(d->d_name, reason.buf); else if (path) - string_list_append(&kept, path)->util = xstrdup(d->d_name); + string_list_append_nodup(&kept, path)->util = xstrdup(d->d_name); } closedir(dir); strbuf_add_absolute_path(&main_path, get_git_common_dir()); /* massage main worktree absolute path to match 'gitdir' content */ strbuf_strip_suffix(&main_path, "/."); - string_list_append(&kept, strbuf_detach(&main_path, NULL)); + string_list_append_nodup(&kept, strbuf_detach(&main_path, NULL)); prune_dups(&kept); string_list_clear(&kept, 1); diff --git a/t/t2401-worktree-prune.sh b/t/t2401-worktree-prune.sh index 3d28c7f06b..568a47ec42 100755 --- a/t/t2401-worktree-prune.sh +++ b/t/t2401-worktree-prune.sh @@ -5,6 +5,7 @@ test_description='prune $GIT_DIR/worktrees' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success initialize ' diff --git a/t/t2406-worktree-repair.sh b/t/t2406-worktree-repair.sh index 5c44453e1c..8970780efc 100755 --- a/t/t2406-worktree-repair.sh +++ b/t/t2406-worktree-repair.sh @@ -2,6 +2,7 @@ test_description='test git worktree repair' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup '