Re: [Evms-devel] Snapshots in batch... Another one

[Michel B. <mi...@bo...>]

Le Mardi 10 Décembre 2002 10:20, Frank Lenaerts a écrit :
>
> When using here documents, you really have to simulate what you would
> do interactively. This has nothing to do with the evms interpreter
> itself, it is a shell issue.
>
> > So I preferred to embed the EVMS commands in the script itself.
> >
> > Maybe a "--batch" option or the like could be added to the command-line
> > client, to tell it not to ask any questions and just process the commands
> > it receives in similar situations.
>
> I don't think this is necessary, as you have the -f option as Kevin
> suggested.

Using here documents can make scripts much easier to read and understand 
rather than having to use separate command files just for executing a couple 
of EVMS commands. This is unnecessary complexity, and unnecessary complexity 
must be avoided as much as possible.

If one uses separate EVMS command files, he may have to create 3 or 4 separate 
command files for being called by a single bash script, which is really 
unpractical.

I know that "here documents" in such a situtation must simulate an interactive 
dialog, but when done in batch, you may not always know when you will or will 
not receive warnings and confirmation messages -- this even can vary from one 
batch execution to another.

For this very reason it would be very useful to have a "--batch" option for 
the EVMS command line, that would mean "DON'T ASK. JUST DO IT."

I believe this wouldn't be such a programming issue to implement, as EVMS 
probably already implements this behaviour when using "-f" command files.

The batch option exists in many, many Unix usual commands for this very 
reason.

Regards.

-- 
Michel Bouissou <mi...@bo...> OpenPGP ID 0xDDE8AC6E