how to suppress warning about gpg-agent?

[Alex Efros]

Hi!

Looks like we need an option to suppress warning about gpg-agent.


> Long story:

I've a lot of projects (each has separate user account) which use gpg for
encrypting daily backups (from cron) in this way:

  gpg --batch --cipher-algo AES256 -c --passphrase-file PASSFILE BACKUP.tar

The problem is, after switching to gpg2 I start receiving a lot of emails
every day with same warning:

  "can't connect to `/home/USER/.gnupg/S.gpg-agent': No such file or directory"

I don't like to redirect STDERR output of gpg to /dev/null because I wanna
receive emails in case of problems with backup process. But I don't wanna
receive dozens of useless emails with this warning every day.

I don't like to run gpg-agent as a daemon on all these user accounts just
to suppress this warning message (and there may be additional issues to
make it accessible from cron scripts, too).

I can try to run gpg-agent from same cron script just before using gpg,
and then kill gpg-agent, but this may lead to race conditions in case
gpg-agent already started by that user for other needs.

Looks like there only two real solutions: implement pipe filter for gpg's
STDERR to strip just this message (ugly), and patch gpg to add an option
to suppress this warning.

P.S. I use Gentoo Linux and app-crypt/gnupg-2.0.14.

-- 
			WBR, Alex.