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tag: Check that options are only allowed in the appropriate mode
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If "git tag -d -l -v ..." is called, only "-l" is honored, which is
arbitrary and wrong. Also, unrecognized options are accepted in the
wrong modes, causing for example "git tag -n 100" to create a tag
named "100" while the user may have wanted to type "git tag -n100".

This patch checks that "git tag" knows in what mode it operates before
performing any operation and accepts only the related options.

Signed-off-by: Samuel Tardieu <sam@rfc1149.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Samuel Tardieu authored and Junio C Hamano committed Nov 4, 2008
1 parent a5a323f commit 6fa8342
Showing 1 changed file with 12 additions and 7 deletions.
19 changes: 12 additions & 7 deletions builtin-tag.c
Original file line number Diff line number Diff line change
Expand Up @@ -344,7 +344,7 @@ 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;
const char *msgfile = NULL, *keyid = NULL;
struct msg_arg msg = { 0, STRBUF_INIT };
Expand Down Expand Up @@ -380,9 +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)
Expand All @@ -407,11 +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";
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