tag: Check that options are only allowed in the appropriate mode

[git.git] / builtin-tag.c

diff --git a/builtin-tag.c b/builtin-tag.c
index 325b1b2632e44121c23bc6df556bf3aa4e32ba04..50cafc814d3774bf358288c23cafbf2cbcecf673 100644 (file)
--- a/builtin-tag.c
+++ b/builtin-tag.c
@@ -344,9 +344,9 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        const char *object_ref, *tag;
        struct ref_lock *lock;
 
-       int annotate = 0, sign = 0, force = 0, lines = 0,
+       int annotate = 0, sign = 0, force = 0, lines = -1,
                list = 0, delete = 0, verify = 0;
-       char *msgfile = NULL, *keyid = NULL;
+       const char *msgfile = NULL, *keyid = NULL;
        struct msg_arg msg = { 0, STRBUF_INIT };
        struct option options[] = {
                OPT_BOOLEAN('l', NULL, &list, "list tag names"),
@@ -372,6 +372,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        git_config(git_tag_config, NULL);
 
        argc = parse_options(argc, argv, options, git_tag_usage, 0);
+       msgfile = parse_options_fix_filename(prefix, msgfile);
 
        if (keyid) {
                sign = 1;
@@ -379,9 +380,19 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        }
        if (sign)
                annotate = 1;
+       if (argc == 0 && !(delete || verify))
+               list = 1;
 
+       if ((annotate || msg.given || msgfile || force) &&
+           (list || delete || verify))
+               usage_with_options(git_tag_usage, options);
+
+       if (list + delete + verify > 1)
+               usage_with_options(git_tag_usage, options);
        if (list)
-               return list_tags(argv[0], lines);
+               return list_tags(argv[0], lines == -1 ? 0 : lines);
+       if (lines != -1)
+               die("-n option is only allowed with -l.");
        if (delete)
                return for_each_tag_name(argv, delete_tag);
        if (verify)
@@ -406,11 +417,6 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
                }
        }
 
-       if (argc == 0) {
-               if (annotate)
-                       usage_with_options(git_tag_usage, options);
-               return list_tags(NULL, lines);
-       }
        tag = argv[0];
 
        object_ref = argc == 2 ? argv[1] : "HEAD";