Re: [PATCH] Add "list" and "rm" sub commands to tg-depend

From: Bert Wesarg <bert.wesarg@googlemail.com>
Date: Apr 9, 2009, 18:01 UTC
Message-ID: <36ca99e90904091101l6dd1685y5be70dd77bf52b57@mail.gmail.com>
In-Reply-To: <20090409091021.5a7ded79.weiny2@llnl.gov>

2009/4/9 Ira Weiny <weiny2@llnl.gov>:

Show 8 quoted lines

> On Thu, 9 Apr 2009 14:43:37 +0200
> Uwe Kleine-König <u.kleine-koenig@pengutronix.de> wrote:
>> You might want to check
>>
>>       http:// thread.gmane.org/gmane.comp.version-control.git/114581
>
> Ah this brings up more issues I had not thought about...  :-(  But perhaps
> Bert's work could be used to help implement "rm".  Thoughts?

No, it wont help. Because the base and tip of the topic should not changed in respect to the old state (expect for .topdeps of course).

If you really want to remove a dependency, you need to revert a merge of this dep from the topic base. which is not possible today, or maybe I have just an idea for this:

  'topic': the topic
  'base':  the base of the topic, i.e. a merge from all dependent
topics dep0, ..., depN

say you want to remove dep0

  1) merge all deps dep1, ..,depN into 'new-base'

  2) merge 'new-base' into base with the merge driver 'theirs', that
would overwrite all changes from dep0 in the 'base'

  3) update 'topic' to the updated 'base'

Any thoughts from someone who knows more than me?

Bert

> Thanks,
> Ira