Date: Sun, 24 Jul 2005 12:28:38 +0200 From: Jeremie Le Hen <jeremie@le-hen.org> To: Simon 'corecode' Schubert <corecode@fs.ei.tum.de> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src ObsoleteFiles.inc Message-ID: <20050724102838.GK74719@obiwan.tataz.chchile.org> In-Reply-To: <f7e3b7d8af2db993d879ca7e11746f01@fs.ei.tum.de> References: <200507231942.j6NJgdks037508@repoman.freebsd.org> <42E2A029.1090404@gmail.com> <42E2DA50.2000205@FreeBSD.org> <20050724011629.GK14567@elvis.mu.org> <f7e3b7d8af2db993d879ca7e11746f01@fs.ei.tum.de>
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Hi Simon,
> I looked into this when I wanted to do this for DragonFly (but I got
> sidetracked). There are few methods in the tree (at least in DragonFly,
> I don't think it's completely different in FreeBSD) by which files get
> installed:
> - mtree
> - ${INSTALL}
> - ln
> - zic (needs more work)
>
> there might be some other things as well, but that's the major part by
> which about 98% of all files are being covered.
>
> This means, after converting all occurences of `ln' to ${LN} (done in
> DragonFly, tho there are some things you can overlook) and `mtree' to
> ${MTREE}, ${INSTALL}, ${LN} and ${MTREE} can be replaced by wrapper
> scripts which parse the parameters and record the created files into
> some kind of log.
>
> Storing these logs in, let's say /var/db/basefiles, let's you find out
> files which were removed just by looking if a file doesn't appear in
> the last log anymore.
>
> I have to agree that wrapping the commands is a bit hackish, but it
> basically works. Oh, of course this system also needs a static list of
> files that were removed previously, so that it can bootstrap (it can
> only catch files that were removed since the last time you ran
> install-with-file-logging).
Just for information, did you make benchmarks of installworld with and
without this feature ? I'm afraid this could lead to a serious penalty
in term of time for slower machine (I personaly use a PII 266).
Regards,
--
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >
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