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Re: Emulating old -r functionality.

From: Paolo Bonzini
Subject: Re: Emulating old -r functionality.
Date: Wed, 19 Dec 2012 17:44:28 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0

Il 25/11/2012 10:03, David Wilson ha scritto:
> On 25 November 2012 10:57, Paul Eggert <address@hidden> wrote:
>> On 11/24/2012 10:13 PM, David Wilson wrote:
>>> my very old shell macros no longer function as they once did.
>> There's not much context here, so it's not clear
>> what you're asking for.  Do you want grep to ignore
>> -r when no file names are being passed?
> No, that would imply reverting the change which is unlikely to happen
> (and cause a further breaking change for anyone relying on the new
> behaviour).

But it _is_ the one that is causing problems for you, right?

** New features

  If no file operand is given, and a command-line -r or equivalent
  option is given, grep now searches the working directory.  Formerly
  grep ignored the -r and searched standard input nonrecursively.
  An -r found in GREP_OPTIONS does not have this new effect.

I would be in favor of reverting the patch.  I never liked the idea.


> I want to know how to emulate the old behaviour, as this
> isn't obvious. My only solution is to wrap grep in a macro that parses
> its arguments, and passes -r only if paths have been provided on the
> command line.

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