show_ref(): remove unused "flag" and "cb_data" arguments

diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 261b610d24017557c137d83a9c005b662e795b6a..eb878c57317f80dfc8be332683d2b1ef2a67a35b 100644 (file)
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -114,7 +114,7 @@ static int receive_pack_config(const char *var, const char *value, void *cb)
        return git_default_config(var, value, cb);
 }
 
-static int show_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
+static void show_ref(const char *path, const unsigned char *sha1)
 {
        if (sent_capabilities)
                packet_write(1, "%s %s\n", sha1_to_hex(sha1), path);
@@ -124,10 +124,9 @@ static int show_ref(const char *path, const unsigned char *sha1, int flag, void
                             " report-status delete-refs side-band-64k",
                             prefer_ofs_delta ? " ofs-delta" : "");
        sent_capabilities = 1;
-       return 0;
 }
 
-static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, void *cb_data)
+static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, void *unused)
 {
        path = strip_namespace(path);
        /*
@@ -140,15 +139,34 @@ static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, vo
         */
        if (!path)
                path = ".have";
-       return show_ref(path, sha1, flag, cb_data);
+       show_ref(path, sha1);
+       return 0;
+}
+
+static void add_one_alternate_sha1(const unsigned char sha1[20], void *unused)
+{
+       add_extra_ref(".have", sha1, 0);
+}
+
+static void collect_one_alternate_ref(const struct ref *ref, void *data)
+{
+       struct sha1_array *sa = data;
+       sha1_array_append(sa, ref->old_sha1);
 }
 
 static void write_head_info(void)
 {
+       struct sha1_array sa = SHA1_ARRAY_INIT;
+       for_each_alternate_ref(collect_one_alternate_ref, &sa);
+       sha1_array_for_each_unique(&sa, add_one_alternate_sha1, NULL);
+       sha1_array_clear(&sa);
        for_each_ref(show_ref_cb, NULL);
        if (!sent_capabilities)
-               show_ref("capabilities^{}", null_sha1, 0, NULL);
+               show_ref("capabilities^{}", null_sha1);
+       clear_extra_refs();
 
+       /* EOF */
+       packet_flush(1);
 }
 
 struct command {
@@ -634,7 +652,7 @@ static int command_singleton_iterator(void *cb_data, unsigned char sha1[20])
        struct command **cmd_list = cb_data;
        struct command *cmd = *cmd_list;
 
-       if (!cmd)
+       if (!cmd || is_null_sha1(cmd->new_sha1))
                return -1; /* end of list */
        *cmd_list = NULL; /* this returns only one */
        hashcpy(sha1, cmd->new_sha1);
@@ -659,11 +677,16 @@ static int iterate_receive_command_list(void *cb_data, unsigned char sha1[20])
        struct command **cmd_list = cb_data;
        struct command *cmd = *cmd_list;
 
-       if (!cmd)
-               return -1; /* end of list */
-       *cmd_list = cmd->next;
-       hashcpy(sha1, cmd->new_sha1);
-       return 0;
+       while (cmd) {
+               if (!is_null_sha1(cmd->new_sha1)) {
+                       hashcpy(sha1, cmd->new_sha1);
+                       *cmd_list = cmd->next;
+                       return 0;
+               }
+               cmd = cmd->next;
+       }
+       *cmd_list = NULL;
+       return -1; /* end of list */
 }
 
 static void execute_commands(struct command *commands, const char *unpacker_error)
@@ -690,7 +713,10 @@ static void execute_commands(struct command *commands, const char *unpacker_erro
 
        check_aliased_updates(commands);
 
+       free((char *)head_name);
        head_name = resolve_ref("HEAD", sha1, 0, NULL);
+       if (head_name)
+               head_name = xstrdup(head_name);
 
        for (cmd = commands; cmd; cmd = cmd->next)
                if (!cmd->skip_update)
@@ -862,25 +888,6 @@ static int delete_only(struct command *commands)
        return 1;
 }
 
-static void add_one_alternate_sha1(const unsigned char sha1[20], void *unused)
-{
-       add_extra_ref(".have", sha1, 0);
-}
-
-static void collect_one_alternate_ref(const struct ref *ref, void *data)
-{
-       struct sha1_array *sa = data;
-       sha1_array_append(sa, ref->old_sha1);
-}
-
-static void add_alternate_refs(void)
-{
-       struct sha1_array sa = SHA1_ARRAY_INIT;
-       for_each_alternate_ref(collect_one_alternate_ref, &sa);
-       sha1_array_for_each_unique(&sa, add_one_alternate_sha1, NULL);
-       sha1_array_clear(&sa);
-}
-
 int cmd_receive_pack(int argc, const char **argv, const char *prefix)
 {
        int advertise_refs = 0;
@@ -930,12 +937,7 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix)
                unpack_limit = receive_unpack_limit;
 
        if (advertise_refs || !stateless_rpc) {
-               add_alternate_refs();
                write_head_info();
-               clear_extra_refs();
-
-               /* EOF */
-               packet_flush(1);
        }
        if (advertise_refs)
                return 0;