threads / discuss / 41664

Git subtree stumbles over annotated tags

Subject: Git subtree stumbles over annotated tags

## tl;dr

3 messages between Mar 10, 2016 and May 21, 2016.

replies: 2people: 2as markdown or json

Gregor Jasny· Mar 10, 2016, 15:51 UTC · lore

Hello,

today I discovered that it's a bad idea to "git subtree pull" from an annotated tag. This issue got discussed in those two threads:

http://comments.gmane.org/gmane.comp.version-control.git/247503 http://comments.gmane.org/gmane.comp.version-control.git/248395

I was under the impression that it is fixed in recent versions of git but my homebrew 2.7.0 still behaves badly. If I run the attached script to reproduce the issue I get the following error message:

> git push using:  sub somebranch
> fatal: 6d621d73ca18dc90424de0929357b5ae62988e00 is not a valid 'commit' object
> Can't copy commit ab38e3fe1ff27f7f87505db37d35adc5c3ceed27

Show 5 quoted lines

> git ls-remote sub
> 99be40f8e3a4c926d45507be53ab6918789b3a52	HEAD
> 99be40f8e3a4c926d45507be53ab6918789b3a52	refs/heads/master
> 6d621d73ca18dc90424de0929357b5ae62988e00	refs/tags/sometag
> 99be40f8e3a4c926d45507be53ab6918789b3a52	refs/tags/sometag^{}

Besides handling this bug could you please give me a hint how to repair my main repository? The problematic subtree pull happened some time ago so I cannot alter the pull itself. I could go the brutal approach and remove, then re-add the subtree but I guess there is a smarter approach. Any help is appreciated!

Thanks, Gregor

Gregor Jasny· Mar 17, 2016, 12:41 UTC · re: Gregor Jasny · lore

Re: Git subtree stumbles over annotated tags

Hello,

On 10/03/16 16:51, Gregor Jasny wrote:

Show 9 quoted lines

> today I discovered that it's a bad idea to "git subtree pull" from an
> annotated tag. This issue got discussed in those two threads:
>
> http://comments.gmane.org/gmane.comp.version-control.git/247503
> http://comments.gmane.org/gmane.comp.version-control.git/248395
>
> I was under the impression that it is fixed in recent versions of git
> but my homebrew 2.7.0 still behaves badly. If I run the attached script
> to reproduce the issue I get the following error message:

For the record: this bug was already fixed in November: https://github.com/git/git/commit/5d65fe312e22594b7fec7349945fb0072987716b#diff-59f70cbe935ec223e3df413b94cab740

Would it make sense to cherry-pick it into 2.7.x?

Thanks, Gregor

David A. Greene· May 21, 2016, 23:02 UTC · re: Gregor Jasny · lore

Re: Git subtree stumbles over annotated tags

Gregor Jasny <gjasny@googlemail.com> writes:

Show 15 quoted lines

> Hello,
>
> On 10/03/16 16:51, Gregor Jasny wrote:
>> today I discovered that it's a bad idea to "git subtree pull" from an
>> annotated tag. This issue got discussed in those two threads:
>>
>> http://comments.gmane.org/gmane.comp.version-control.git/247503> http://comments.gmane.org/gmane.comp.version-control.git/248395>
>> I was under the impression that it is fixed in recent versions of git
>> but my homebrew 2.7.0 still behaves badly. If I run the attached script
>> to reproduce the issue I get the following error message:
>
> For the record: this bug was already fixed in November:
> https://github.com/git/git/commit/5d65fe312e22594b7fec7349945fb0072987716b#diff-59f70cbe935ec223e3df413b94cab740
>
> Would it make sense to cherry-pick it into 2.7.x?

I wouldn't object to it if you can prepare the patch but git-subtree is under heavy development and I don't have the free cycles to maintain a "release" version of it.

                      -David