refs: pass NULL to resolve_refdup() if hash is not needed
This allows us to get rid of several write-only variables.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 5c202b7..531f772 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1116,9 +1116,8 @@ static int checkout_branch(struct checkout_opts *opts,
if (new->path && !opts->force_detach && !opts->new_branch &&
!opts->ignore_other_worktrees) {
- struct object_id oid;
int flag;
- char *head_ref = resolve_refdup("HEAD", 0, oid.hash, &flag);
+ char *head_ref = resolve_refdup("HEAD", 0, NULL, &flag);
if (head_ref &&
(!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)))
die_if_checked_out(new->path, 1);
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 65d8907..65e38a7 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1458,7 +1458,6 @@ static void execute_commands(struct command *commands,
{
struct check_connected_options opt = CHECK_CONNECTED_INIT;
struct command *cmd;
- struct object_id oid;
struct iterate_data data;
struct async muxer;
int err_fd = 0;
@@ -1515,7 +1514,7 @@ static void execute_commands(struct command *commands,
check_aliased_updates(commands);
free(head_name_to_free);
- head_name = head_name_to_free = resolve_refdup("HEAD", 0, oid.hash, NULL);
+ head_name = head_name_to_free = resolve_refdup("HEAD", 0, NULL, NULL);
if (use_atomic)
execute_commands_atomic(commands, si);
diff --git a/ref-filter.c b/ref-filter.c
index bc591f4..5532362 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -295,9 +295,7 @@ static void if_atom_parser(const struct ref_format *format, struct used_atom *at
static void head_atom_parser(const struct ref_format *format, struct used_atom *atom, const char *arg)
{
- struct object_id unused;
-
- atom->u.head = resolve_refdup("HEAD", RESOLVE_REF_READING, unused.hash, NULL);
+ atom->u.head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL);
}
static struct {
@@ -1317,9 +1315,8 @@ static void populate_value(struct ref_array_item *ref)
ref->value = xcalloc(used_atom_cnt, sizeof(struct atom_value));
if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) {
- struct object_id unused1;
ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING,
- unused1.hash, NULL);
+ NULL, NULL);
if (!ref->symref)
ref->symref = "";
}
diff --git a/reflog-walk.c b/reflog-walk.c
index 74ebe51..842b2f7 100644
--- a/reflog-walk.c
+++ b/reflog-walk.c
@@ -61,11 +61,10 @@ static struct complete_reflogs *read_complete_reflog(const char *ref)
reflogs->ref = xstrdup(ref);
for_each_reflog_ent(ref, read_one_reflog, reflogs);
if (reflogs->nr == 0) {
- struct object_id oid;
const char *name;
void *name_to_free;
name = name_to_free = resolve_refdup(ref, RESOLVE_REF_READING,
- oid.hash, NULL);
+ NULL, NULL);
if (name) {
for_each_reflog_ent(name, read_one_reflog, reflogs);
free(name_to_free);
@@ -151,9 +150,8 @@ int add_reflog_for_walk(struct reflog_walk_info *info,
reflogs = item->util;
else {
if (*branch == '\0') {
- struct object_id oid;
free(branch);
- branch = resolve_refdup("HEAD", 0, oid.hash, NULL);
+ branch = resolve_refdup("HEAD", 0, NULL, NULL);
if (!branch)
die ("No current branch");
diff --git a/transport.c b/transport.c
index fb8c01e..f1e2f61 100644
--- a/transport.c
+++ b/transport.c
@@ -471,11 +471,10 @@ void transport_print_push_status(const char *dest, struct ref *refs,
{
struct ref *ref;
int n = 0;
- struct object_id head_oid;
char *head;
int summary_width = transport_summary_width(refs);
- head = resolve_refdup("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL);
+ head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL);
if (verbose) {
for (ref = refs; ref; ref = ref->next)
diff --git a/wt-status.c b/wt-status.c
index ac972ac..c97282c 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -121,15 +121,13 @@ static void status_printf_more(struct wt_status *s, const char *color,
void wt_status_prepare(struct wt_status *s)
{
- struct object_id oid;
-
memset(s, 0, sizeof(*s));
memcpy(s->color_palette, default_wt_status_colors,
sizeof(default_wt_status_colors));
s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
s->use_color = -1;
s->relative_paths = 1;
- s->branch = resolve_refdup("HEAD", 0, oid.hash, NULL);
+ s->branch = resolve_refdup("HEAD", 0, NULL, NULL);
s->reference = "HEAD";
s->fp = stdout;
s->index_file = get_index_file();
