[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: Shelving / Checkpointing thoughts

From: Julian Foad <julianfoad_at_apache.org>
Date: Sun, 27 Aug 2017 16:06:56 +0100

Daniel Shahaf wrote:
> Julian Foad wrote on Fri, 25 Aug 2017 21:42 +0100:
>> Let's clarify. We can mean two possible things when we say 'a series of
>> patches':
>>
>> 1. "patch versions": a series of successively better patches, all
>> attempting the same logical thing, all from the same base, and only one
>> of which is applied at any time;
>>
>> 2. a series of patches, each providing a different logical change,
>> where each patch is based on the result of applying the previous one.
>> ("quilt" is a tool for managing path series of this kind. My 'option 3'
>> (local repository) design for checkpointing could also be used in this
>> way, in a primitive way, but would not support revising earlier patches
>> in the series which is a key strength of what "quilt" can do.)
>>
>> I am talking about definition 1 ("patch versions").
>> [...]
>>
>> I propose that we should not attempt to provide any special support for
>> definition 2 within this "shelving" feature; users can manage that
>> themselves by simply remembering which feature names depend on which
>> other ones, or by including some other numbering system within the names.
>
> Could you explain how you see this working? In use-case #2, later patches
> in the series typically depend on earlier patches. I don't see how that use-case
> can be addressed if the patches are all implemented against deltas against
> the same base (for example, because if patch #2 in a 5-patch series is edited,
> all later patches would have to be regenerated).

This kind of shelving (with simple checkpointing add-ons) would *not*
help with use case #2: in particular it would not provide any support
for editing an earlier patch and rebasing the later patches. All I meant
is that you would still be free to use (manually) any naming/numbering
system you wish to help you remember how the patches that you shelve are
related.

- Julian
Received on 2017-08-27 17:07:03 CEST

This is an archived mail posted to the Subversion Dev mailing list.