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Re: Supporting the --targets option more fully

From: C. Michael Pilato <cmpilato_at_collab.net>
Date: 2006-05-31 21:19:02 CEST

C. Michael Pilato wrote:
> Hyrum K. Wright wrote:
>
>>A couple of months ago, there was a short discussion about supporting
>>the --targets option more fully. [1] Julian Foad wrote a proposal
>>regarding how to better handle the --targets option, and I promptly
>>disappeared from the discussion. :)
>>
>>[1] http://svn.haxx.se/dev/archive-2006-04/0748.shtml
>>
>>I've started to do some investigation of my own, and I currently have an
>>improved version of the patch I sent in the previous discussion. I do
>>have the following questions:
>>
>>1) Currently, if multiple --targets options are given, we silently
>>ignores all but the last one. In such a case, should be process each
>>one, or simply throw and error?
>
>
> My vote: process them each/all, additively.
>
>
>>2) In order to have --targets be used to specify only repeatable
>>targets, would it be favorable to prepend the list of targets it
>>generates, rather than append them? In most of the commands I've looked
>>at, the "special" command arguments are last, so prepending would
>>maintain the correct meaning of arguments given by their order. Should
>>such prepending be done for each command individually, or across the board?
>
>
> You're making a false assumption here:
>
> svn update foo bar --targets /path/to/more/targets
>
> is *exactly* the same thing as:
>
> svn update --targets /path/to/more/targets foo bar

This wasn't very clear. Your false assumption is that option positioning
with respect to command arguments matters. The reality is that it doesn't.
 Sorry for the confusion.

> Our option space is global, and option positioning doesn't matter. Options
> are stripped first, leaving command arguments. As with most things, I'd say
> consistency is best -- either always prepend, or always append, and make the
> documentation say clearly which you do.
>

-- 
C. Michael Pilato <cmpilato@collab.net>
CollabNet   <>   www.collab.net   <>   Distributed Development On Demand

Received on Wed May 31 21:20:20 2006

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