Re: clean numbered backups with convert-ly

[Eluze]

David Kastrup wrote
> Eluze <

> eluzew@

> > writes:
> 
>> carried away by my success in contributing a little patch for convert-ly
>> in
>> Python and inspired by dak's sentence "numbered backups tend to
>> accumulate"
>> (sorry I can't remember exactly where that was) I tried a new patch to
>> get
>> rid of these numerous backups:
>>
>> -k --clean-numbered-backup - "clean numbered backups
>> [filename.ext.~number~]"
>>
>> surely it's also not difficult to find these backups with an explorer and
>> an
>> appropriate regex and to delete them manually.
>>
>> for me it was an occasion to learn more about Python and regex. and tbh
>> it
>> took me much more time than the result would let you think.
>>
>> if somebody feels this is usable or useful please add it to convert-ly.
> 
> As you said: this is easy to do with shell patterns anyway.  Easier to
> look up a rarely used option, and more flexible (you can do it for one
> or multiple files).  

that's possible, too.

eg. you can write convert-ly -beck *.ly
or
convert-ly --clean-numbered-backup test1.ly test5.ly


> So I'd lean towards not doing anything here.
> 
>> another (not really related) topic:
>>
>> during the discussion about numbered backups I discovered that you can
>> easily write "convert-ly -beck" whereas I used to write  -b -e -c -k   -
>> I
>> don't think I've seen this is mentioned in the AU but it is much easier
>> to
>> write!
> 
> convert -ed is frequently mentioned on the list.

.
on the list but not in the doc

>> so I suggest to add a short note like:
>>
>> boolean parameters like e, c, d, b … can be collected after a single "-",
>> eg. -bec
> 
> It's usually not just booleans, though some utilities differ how they
> accumulate options with parameters.  So sometimes you can write
> 
> -xyz paramx paramy paramz
> 
> but sometimes the interpretation instead leads to
> 
> -xparamx -yparamy -zparamz
> 
>> in the end of the chapter *2.3 Command line options for convert-ly*
> 
> This is usually assumed to be common knowledge, but of course it's
> "common knowledge" mostly with people accustomed to Unix.

and I'm not one of those 

altogether I'm not insisting in adding this feature, it's just a proposal.

Eluze



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