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tag: --force does not have to warn when creating tags

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"git tag --force" mentions what old tag object is being replaced
when it is used to update an existing tag, but it shows the same
message when creating a new one.  Stop doing that, as it does not
add any information.

Add a test for this and also to ensure --force can replace tags at
all.

Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phil Hord 2013-03-12 19:13:41 -04:00 committed by Junio C Hamano
parent 03a0fb0ccf
commit 3ae851e6fb
2 changed files with 13 additions and 1 deletions
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2
builtin/tag.c
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@ -584,7 +584,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
die(_("%s: cannot lock the ref"), ref.buf);
if (write_ref_sha1(lock, object, NULL) < 0)
die(_("%s: cannot update the ref"), ref.buf);
if (force && hashcmp(prev, object))
if (force && !is_null_sha1(prev) && hashcmp(prev, object))
printf(_("Updated tag '%s' (was %s)\n"), tag, find_unique_abbrev(prev, DEFAULT_ABBREV));
strbuf_release(&buf);

12
t/t7004-tag.sh
View file

@ -104,6 +104,18 @@ test_expect_success 'creating a tag using HEAD directly should succeed' '
tag_exists myhead
'
test_expect_success '--force can create a tag with the name of one existing' '
tag_exists mytag &&
git tag --force mytag &&
tag_exists mytag'
test_expect_success '--force is moot with a non-existing tag name' '
git tag newtag >expect &&
git tag --force forcetag >actual &&
test_cmp expect actual
'
git tag -d newtag forcetag
# deleting tags:
test_expect_success 'trying to delete an unknown tag should fail' '