switch: reject if some operation is in progress

diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 81cc07370022647c6d08eecb95f50ae35a99526e..29f165d8bd3513a6f85667b070e8f157994364bb 100644 (file)
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -694,6 +694,8 @@ static int run_and_feed_hook(const char *hook_name, feed_fn feed,
        proc.argv = argv;
        proc.in = -1;
        proc.stdout_to_stderr = 1;
+       proc.trace2_hook_name = hook_name;
+
        if (feed_state->push_options) {
                int i;
                for (i = 0; i < feed_state->push_options->nr; i++)
@@ -807,6 +809,7 @@ static int run_update_hook(struct command *cmd)
        proc.stdout_to_stderr = 1;
        proc.err = use_sideband ? -1 : 0;
        proc.argv = argv;
+       proc.trace2_hook_name = "update";
 
        code = start_command(&proc);
        if (code)
@@ -1190,6 +1193,7 @@ static void run_update_post_hook(struct command *commands)
        proc.no_stdin = 1;
        proc.stdout_to_stderr = 1;
        proc.err = use_sideband ? -1 : 0;
+       proc.trace2_hook_name = "post-update";
 
        if (!start_command(&proc)) {
                if (use_sideband)
@@ -1198,17 +1202,12 @@ static void run_update_post_hook(struct command *commands)
        }
 }
 
-static void check_aliased_update(struct command *cmd, struct string_list *list)
+static void check_aliased_update_internal(struct command *cmd,
+                                         struct string_list *list,
+                                         const char *dst_name, int flag)
 {
-       struct strbuf buf = STRBUF_INIT;
-       const char *dst_name;
        struct string_list_item *item;
        struct command *dst_cmd;
-       int flag;
-
-       strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name);
-       dst_name = resolve_ref_unsafe(buf.buf, 0, NULL, &flag);
-       strbuf_release(&buf);
 
        if (!(flag & REF_ISSYMREF))
                return;
@@ -1247,6 +1246,18 @@ static void check_aliased_update(struct command *cmd, struct string_list *list)
                "inconsistent aliased update";
 }
 
+static void check_aliased_update(struct command *cmd, struct string_list *list)
+{
+       struct strbuf buf = STRBUF_INIT;
+       const char *dst_name;
+       int flag;
+
+       strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name);
+       dst_name = resolve_ref_unsafe(buf.buf, 0, NULL, &flag);
+       check_aliased_update_internal(cmd, list, dst_name, flag);
+       strbuf_release(&buf);
+}
+
 static void check_aliased_updates(struct command *commands)
 {
        struct command *cmd;
@@ -1986,7 +1997,9 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix)
        if (advertise_refs)
                return 0;
 
-       packet_reader_init(&reader, 0, NULL, 0, PACKET_READ_CHOMP_NEWLINE);
+       packet_reader_init(&reader, 0, NULL, 0,
+                          PACKET_READ_CHOMP_NEWLINE |
+                          PACKET_READ_DIE_ON_ERR_PACKET);
 
        if ((commands = read_head_info(&reader, &shallow)) != NULL) {
                const char *unpack_status = NULL;