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hash-object: fix a trivial leak in --path

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Fix a memory leak that happened when the --path option was
provided. This leak has been with us ever since the option was added
in 3970243150 (add --path option to git hash-object, 2008-08-03).

We can now mark "t1007-hash-object.sh" as passing when git is compiled
with SANITIZE=leak. It'll now run in the the
"GIT_TEST_PASSING_SANITIZE_LEAK=true" test mode (the "linux-leaks" CI
target).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2022-02-05 01:04:29 +01:00 committed by Junio C Hamano
parent 4c53a8c20f
commit d17294a05e
2 changed files with 8 additions and 2 deletions
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9
builtin/hash-object.c
View file

@ -92,6 +92,7 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
int nongit = 0;
unsigned flags = HASH_FORMAT_CHECK;
const char *vpath = NULL;
char *vpath_free = NULL;
const struct option hash_object_options[] = {
OPT_STRING('t', NULL, &type, N_("type"), N_("object type")),
OPT_BIT('w', NULL, &flags, N_("write the object into the object database"),
@ -114,8 +115,10 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
else
prefix = setup_git_directory_gently(&nongit);
if (vpath && prefix)
vpath = prefix_filename(prefix, vpath);
if (vpath && prefix) {
vpath_free = prefix_filename(prefix, vpath);
vpath = vpath_free;
}
git_config(git_default_config, NULL);
@ -156,5 +159,7 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
if (stdin_paths)
hash_stdin_paths(type, no_filters, flags, literally);
free(vpath_free);
return 0;
}

1
t/t1007-hash-object.sh
View file

@ -2,6 +2,7 @@
test_description="git hash-object"
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
echo_without_newline() {