GNU bug report logs - #30938
27.0; `dired-do-create-files' etc.: do NOT always raise error if no files

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From: Juri Linkov <juri <at> linkov.net>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 30938 <at> debbugs.gnu.org
Subject: bug#30938: 27.0; `dired-do-create-files' etc.: do NOT always raise error if no files
Date: Mon, 02 Apr 2018 22:30:50 +0300

> I'm open to other ways to do what is needed, if they
> are better.  Feel free to propose something.

I still don't see why raising the error should depend on command's
interactivity, i.e. why these commands should not signal a user-error
in the non-interactive case.

We have thousands calls of such core functions as
(search-forward STRING &optional BOUND NOERROR COUNT)
and none of them binds the NOERROR arg to the command INTERACTIVE arg.
That's because it would make the control flow unmanageable in
a chain of commands, i.e. when a command that invokes a command
that invokes such core functions.

In very rare cases when you absolutely need to ignore errors,
just use (ignore-errors (dired-do-chmod))

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