Andrew's git / gitweb.git / blobdiff
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Merge branch 'km/empty-repo-is-still-a-repo'
[gitweb.git] / builtin / tag.c
diff --git a/builtin/tag.c b/builtin/tag.c
index ad97595fbfaa25c8ec44efec8ce5f946cf7de184..8399a0ed5414321f9893f94d93dab6788f2175af 100644 (file)
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -22,10 +22,11 @@
 #include "ref-filter.h"
 
 static const char * const git_tag_usage[] = {
-       N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] <tagname> [<head>]"),
+       N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>]\n"
+               "\t\t<tagname> [<head>]"),
        N_("git tag -d <tagname>..."),
-       N_("git tag -l [-n[<num>]] [--contains <commit>] [--no-contains <commit>] [--points-at <object>]"
-               "\n\t\t[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]"),
+       N_("git tag -l [-n[<num>]] [--contains <commit>] [--no-contains <commit>] [--points-at <object>]\n"
+               "\t\t[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]"),
        N_("git tag -v [--format=<format>] <tagname>..."),
        NULL
 };
@@ -205,7 +206,14 @@ struct create_tag_options {
        } cleanup_mode;
 };
 
-static void create_tag(const struct object_id *object, const char *tag,
+static const char message_advice_nested_tag[] =
+       N_("You have created a nested tag. The object referred to by your new is\n"
+          "already a tag. If you meant to tag the object that it points to, use:\n"
+          "\n"
+          "\tgit tag -f %s %s^{}");
+
+static void create_tag(const struct object_id *object, const char *object_ref,
+                      const char *tag,
                       struct strbuf *buf, struct create_tag_options *opt,
                       struct object_id *prev, struct object_id *result)
 {
@@ -215,7 +223,10 @@ static void create_tag(const struct object_id *object, const char *tag,
 
        type = oid_object_info(the_repository, object, NULL);
        if (type <= OBJ_NONE)
-           die(_("bad object type."));
+               die(_("bad object type."));
+
+       if (type == OBJ_TAG && advice_nested_tag)
+               advise(_(message_advice_nested_tag), tag, object_ref);
 
        strbuf_addf(&header,
                    "object %s\n"
@@ -549,7 +560,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        if (create_tag_object) {
                if (force_sign_annotate && !annotate)
                        opt.sign = 1;
-               create_tag(&object, tag, &buf, &opt, &prev, &object);
+               create_tag(&object, object_ref, tag, &buf, &opt, &prev, &object);
        }
 
        transaction = ref_transaction_begin(&err);