Date: Tue, 10 Oct 2006 11:40:27 GMT From: Yar Tikhiy <yar@comp.chem.msu.su> To: freebsd-rc@FreeBSD.org Subject: Re: bin/104044: [patch] rc.d/cleartmp works incorrectly Message-ID: <200610101140.k9ABeRwZ018684@freefall.freebsd.org>
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The following reply was made to PR bin/104044; it has been noted by GNATS. From: Yar Tikhiy <yar@comp.chem.msu.su> To: Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua> Cc: Florent Thoumie <flz@xbsd.org>, bug-followup@freebsd.org Subject: Re: bin/104044: [patch] rc.d/cleartmp works incorrectly Date: Tue, 10 Oct 2006 15:31:35 +0400 On Tue, Oct 10, 2006 at 02:34:43PM +0400, Yar Tikhiy wrote: > > > 2. Ignore error code from rm and always run find, that is > > use "rm ... ; find ..." instead of "rm ... && find ...": > > one can create many files with long names and rm will not > > be called because of "Argument list too long" error, so > > find should do all of the work. > > By the way, did you consider omitting the first rm at all and just > using "find ... -print0 | xargs -0 rm -rf" ? The first rm can be > an optimization as long as we use find with -exec. OTOH, xargs -0 > would buy us the same performance and robustness without hacks. > Both find and xargs should be available to cleartmp. Here's the > code. Note "type -d" omitted. > > if checkyesno ${rcvar1}; then > # This is not needed with mfs /tmp, but doesn't hurt anything. > echo "Clearing /tmp." > find -x /tmp/. ! -name . \ > ! \( -name lost+found -type d -user root \) \ > ! \( \( -name quota.user -or -name quota.group \) \ > -type f -user root \) \ > -prune -print0 | xargs -0 rm -rf ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > elif ... It seems we can use just "-delete" here. If run as root, find deletes entries with funny permissions or flags as well as rm does. BTW, find will descend into lost+found and delete its contents in both cases (rm w/ -prune, or -delete), which is good IMHO. -- Yar
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