(again because the mailing list rejected it) (Gmal switched interface
and HTML is the default)
On Wed, Oct 31, 2012 at 6:37 AM, Chris Rorvick <ch...@rorvick.com> wrote:
> References are allowed to update from one commit-ish to another if the
> former is a ancestor of the latter. This behavior is oriented to
> branches which are expected to move with commits. Tag references are
> expected to be static in a repository, though, thus an update to a
> tag (lightweight and annotated) should be rejected unless the update is
> To enable this functionality, the following checks have been added to
> set_ref_status_for_push() for updating refs (i.e, not new or deletion)
> to restrict fast-forwarding in pushes:
> 1) The old and new references must be commits. If this fails,
> it is not a valid update for a branch.
> 2) The reference name cannot start with "refs/tags/". This
> catches lightweight tags which (usually) point to commits
> and therefore would not be caught by (1).
> If either of these checks fails, then it is flagged (by default) with a
> status indicating the update is being rejected due to the reference
> already existing in the remote. This can be overridden by passing
> --force to git push.
> The new status has the added benefit of being able to provide accurate
> feedback as to why the ref update failed and what can be done.
> Currently all ref update rejections are assumed to be for branches.
Makes sense to me. I've believe I've been hit by this a couple of
times when tags were updated, and a colleague did 'git push' and they
went all back, or something like that. To handle that case properly
probably more changes are needed, but this is a change in the right
> +test_expect_success 'push tag requires --force to update remote tag' '
> + mk_test heads/master &&
> + mk_child child1 &&
> + mk_child child2 &&
> + (
> + cd child1 &&
> + git tag lw_tag &&
> + git tag -a -m "message 1" ann_tag &&
> + git push ../child2 lw_tag &&
> + git push ../child2 ann_tag &&
> + >file1 &&
> + git add file1 &&
> + git commit -m "file1" &&
> + git tag -f lw_tag &&
> + git tag -f -a -m "message 2" ann_tag &&
> + ! git push ../child2 lw_tag &&
You probably should use test_must_fail.
I don't see anything wrong with the patch, but I wonder if it might be
possible to split it to ease the review.
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