Re: [Monotone-devel] Re: rfc on h: selector behavior

[Emile Snyder]

On Thu, 2005-10-13 at 10:22 +0200, Wim Oudshoorn wrote:
>From a quick look in the manual I get the impression that:
> 
> * All selectors accept globbing except:
>   - date related selectors
>   - ID selector
> 
> This seems reasonable to me, dates and IDs have a very restricted
> format.  So for consistency sake, I would accept globbing.

Thats kind of my lukewarm argument too, and what I went with.
> 
> > erase_ancestors(b:*)
> > or
> > union (erase_ancestors(b:b1), erase_ancestors(b:b2), ...)
> 
> Hm, difficult.  I think I might lean towards the second case.

Ditto, and for most of the same reasons.

> Head selector, how I would like to use it
> -----------------------------------------
> 
> On a related note,  I imagine myself using a head selector
> most often in a situation after monotone sync.
> If after sync I get the message that I am not based on head
> I would like to be able to do some comparision.  
> 
> Scenario I:
> ...........
> I have a checked out copy, without local changes,
> after synchronization I get a new head:
> 
> 
>    Working copy ------> Newly received head
> 
> I would like to type something like:
> 
>   monotone diff --revision=h:  
>
> So somehow you need to be able to specify the head
> of the branch of the current working copy. 

Huh, interesting.  Not sure of the right way to do it, but I can see the
desire to have it ;)

> 
> Scenario II:
> ............
> I have checked out a copy and made local changes, which
> are not commited yet.
> 
>    Working copy  -------> Newly received head
>         .
>          .... working copy is changed on disk!!
> 
> I would like to see the differences between 
> the working copy revision in the DB and the new head.
> 
>    monotone diff --revision=i:$(cat MT/revision) --revision=h:
> 
> Hm, is there a selector matching the current working copy?

Well, if you want the current *contents* of the working copy, diff
assumes that, but I don't think there is one for the revision in
MT/revision.

> Scenario III:
> .............
> I have a working copy and have commited local changes, which
> are commited:
> 
> 
>     Ancestor      -------> Newly received head
>           \
>            \---> Working copy
> 
> I would like to be able to do something like, [fantasy syntax follows]
> 
>    monotone diff --revision=lca:(h:|i:$(cat MT/revision)) --revision=h:
> 
> for the differences between ancestor and newly received head.

Hmmm.  I can see the desire for such a thing here too, but appropriate
syntax totally fails me ;)

Thanks for the feedback,
-emile