[Gluster-Maintainers] Changing Submit Type on review.gluster.org

[Shyam Ranganathan]

On 09/07/2017 02:20 AM, Nigel Babu wrote:
> Hello folks,
> 
> A few times, we've merged dependent patches out of order because the Submit
> type[1] did not block us from doing so. The last few times we've talked about
> this, we didn't actually take a strong decision either way. In yesterday's
> maintainers meeting, we agreed to change the Submit type to
> Rebase-If-Necessary. This change will happen on 18th September 2017.

Unrelated: We possibly need to document on how to work with dependent 
patches, i.e how to create them? manage intermediate changes, etc.

I state this as it is a useful manner of keeping commits small and 
relevant and easy to review, and building on that practice with better 
instructions can help.

On topic: this would be a welcome change than breaking master when such 
events happen, or chasing dependencies (determining which patch is 
dependent on which) when merging the same.

> 
> What this means:
> * No more metadata flags added by Gerrit. There will only be a Change-Id,
>    Signed-off-by, and BUG (if you've added it). Gerrit itself will not add any
>    metadata.
> * If you push a patch on top of another patch, the Submit button will either be
>    grayed out because the dependent patches cannot be merged or they will be
>    submited in the correct order in one go.
> 
> Some of the concerns that have been raised:
> Q: With the Reviewed-on flag gone, how do we keep track of changesets
>     (especially backports)?
> A: The Change-Id will get you all the data directly on Gerrit. As long you
>     retain the Change-Id, Gerrit will get you the matching changesets.
> 
> Q: Will who-wrote-what continue to work?
> A: As far as I can see, it continues to work. I ran the script against
>     build-jobs repo and it works correctly. Additionally, we'll be setting up an
>     instance of Gerrit Stats[2] to provide more detailed stats.
> 
> Q: Can we have some of the metadata if not all?
> Q: Why can't we have the metadata if we change the submit type?
> A: There's no good answer to this other than, this is how Gerrit works and
>     I can neither change it nor control it.
> 
> [1]: https://review.gluster.org/Documentation/intro-project-owner.html#submit-type
> [2]: http://gerritstats-demo.firebaseapp.com/
> 
> --
> nigelb
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