GNU bug report logs - #68666
warning if --exclude-dir arg contains /?

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Message #8 received at 68666 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Karl Berry <karl <at> freefriends.org>, 68666 <at> debbugs.gnu.org
Subject: Re: bug#68666: warning if --exclude-dir arg contains /?
Date: Mon, 22 Jan 2024 21:37:26 -0800

On 2024-01-22 15:48, Karl Berry wrote:
> Would it be crazy for  grep --exclude-dir=foo/bar  to give a warning?
> 
> Since, as I understand it, any non-trailing / in the arg can never match
> since the arg is matched against the basename.

That's not quite true, as it can match command-line arguments. For example:

  $ grep -rl . lib/* | grep '^lib/unictype/\.gitignore$'
  lib/unictype/.gitignore
  $ grep --exclude-dir=lib/unictype -rl . lib/* | grep 
'^lib/unictype/\.gitignore$'
  $

It should be possible to give useful warnings in some cases, though.

It's too bad the rules are so complicated - that's partly my fault, as 
the various options were added at different times and I didn't think 
things through as suggestions were made. Probably too late to change the 
meaning of existing options now, though.

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