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Date: Sat, 7 Jul 2007 11:36:10 -0400
From: "Ryan Reich" <ryan.reich@gmail.com>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] Re: Re: Re: Inotify and (f)crontabs
In-Reply-To: <f6kv2a$c6v$1@sea.gmane.org>
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On 7/6/07, Steve Long <slong@rathaus.eclipse.co.uk> wrote:
> Ryan Reich wrote:
> <snip useful discussion that went over my head>
> >
> > If there's interest in incorporating this, I wouldn't mind testing my
> > idea. Once I get past the initial resistance to doing anything at
> > all, it's probably two minutes' compilation time plus two more writing
> > the config files to set up.
> >
> I think I should point out that comments like that really get people's backs
> up; if it's so quick and easy why didn't you implement it first and then
> ask for comments on a working project? If you only wanted discussion then
> cool, you got it ;)
>
> Please do post a follow up with a link to the working code.
>
> (BTW my 5 minute projects always take weeks.. ;)
I don't know if I got anyone else's back up with this, but you got
mine up with your letter :) So I wrote an ebuild for incron (though I
notice that there's an extremely minimal one pending on
bugs.gentoo.org). It includes, in addition to the actual ebuild file,
a boot script, an incrontab similar to the one I conceptualized in one
of my earlier letters, and a little script that handles files in
/etc/cron.{hourly,...}. I've tested it on my machine (indeed, I'm
running it now) and it does work. Basically, the incrontab (called
"fcrontabs" and which goes in /etc/incron.d) runs my little script to
generate a one-line fcrontab which it puts in /etc/cron, whenever it
sees something change in one of the cron.timely directories; the
one-liner just runs the script which changed. It also makes
check_system_crontabs the responsibility of incrond. The net result
is that adding anything to any /etc/cron.timely/ results in a periodic
fcron job, like
@ 1d makewhatis -u
being added to the fcrontab for "systab" immediately. The contents of
/etc/crontab and /etc/fcrontab are redundant under this scheme and the
files should be emptied if this is used.
I've tarred and bzipped the whole ebuild directory and attached it;
it's only four kilobytes so I hope no one minds (this letter is
probably longer). I don't know where the correct forum to submit this
sort of thing for comment is, so if this isn't it I'd be happy to take
it somewhere else. But I thought anyone following this discussion
would like to see it here.
--
Ryan Reich
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