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To: gentoo-user@lists.gentoo.org
From: Michael Orlitzky <mjo@gentoo.org>
Subject: [gentoo-user] Safe systemd "reload" command
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Date: Sat, 4 Jun 2016 18:48:29 -0400
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I'm planning on adding USE=cron to mail-filter/spamassassin to perform
nightly updates. I have a script that works for OpenRC,

  https://wiki.gentoo.org/wiki/SpamAssassin#Daily_updates

but I've commented where I would like to have something similar for
systemd users. Anybody know how to do that?

We can't count on systemd being installed, so we need to...

  1. Test that systemd is installed.

  2. Check if e.g. spamd is running (depends on #1 for the commands).

  3. Reload or restart the daemon if #1 and #2 hold; or do nothing if
     one of them doesn't.