Date: Mon, 3 Aug 2009 11:16:46 +0200 From: Emanuel Haupt <ehaupt@FreeBSD.org> To: Garrett Cooper <yanefbsd@gmail.com> Cc: Peter Jeremy <peterjeremy@optushome.com.au>, freebsd-ports@FreeBSD.org Subject: Re: ports/*/jpeg "Thanks a lot guys" Message-ID: <20090803111646.b773447c.ehaupt@FreeBSD.org> In-Reply-To: <7d6fde3d0908030148h3b5a5934lb0ade13d8b095105@mail.gmail.com> References: <20090731121249.538ea7e7.jasonh@DataIX.net> <20090731173636.GA76357@owl.midgard.homeip.net> <4A740679.1020608@infracaninophile.co.uk> <c/bsZ0e9iU@dmeyer.dinoex.sub.org> <4A747C77.1040800@infracaninophile.co.uk> <20090801224323.GA65040@server.vk2pj.dyndns.org> <4A7552C8.7020508@infracaninophile.co.uk> <4A75A813.10307@infracaninophile.co.uk> <7d6fde3d0908030148h3b5a5934lb0ade13d8b095105@mail.gmail.com>
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> On Sun, Aug 2, 2009 at 7:52 AM, Matthew > Seaman<m.seaman@infracaninophile.co.uk> wrote: > > Matthew Seaman wrote: > > > >> Peter Jeremy wrote: > >>> > >>> In this specific case, p5-RT-* depends on www/rt38 depends on > >>> graphics/p5-GD depends on graphics/gd depends on graphics/jpeg. > >>> =A0When jpeg is bumped, gd needs to be bumped because it > >>> LIB_DEPENDS on jpeg. p5-GD then needs to be bumped because it > >>> LIB_DEPENDS on gd. =A0rt38 does not need to be bumped because it > >>> has no LIB_DEPENDS on p5-GD. =A0p5-RT-* does not need to be bumped > >>> because rt38 is not bumped. > >>> > >>> This is slighly more complex than > >>> =A0cd /usr/ports && \ > >>> =A0for i in */*; do [ -d "$i" ] && cd "$i" && make > >>> all-depends-list ; done > >>> | \ > >>> =A0grep jpeg > >>> because you need to actually follow the dependency tree, but is > >>> not impractical. =A0The only issues I can see with this approach > >>> are: > >>> 1) Mapping the shared library reported by 'make lib-depends' back > >>> to the port than installs it. > >>> 2) You are relying on LIB_DEPENDS being correct: =A0In my general > >>> example above, if A is missing a LIB_DEPENDS on C, this may not > >>> be detected in the build process because of the implicit > >>> dependency on C via B. > >>> > >>> No sample script because I'm not sure of the correct approach to > >>> 1) off the top of my head. > > > >> Doing (1) using my p5-FreeBSD-Portindex code is pretty easy. =A0It's > >> about time I released an update anyhow -- I'll code up a little > >> app that processes > >> the LIB_DEPENDS linkages already stored in the cache and lists > >> each port that has a LIB_DEPENDS, together with all the ports it > >> depends on cumulatively. > > > > I've got this working now -- I still need to do some more testing, > > update documentation and stuff before I release version 2.2 of > > p5-FreeBSD-Portindex, > > but as a taster, here's the result of generating this on my machine > > just now: > > > > =A0http://www.infracaninophile.co.uk/SHLIBS.bz2 > > > > (Note that this includes the effect of a number of local settings in > > /etc/make.conf) > > > > It's similar to the ports INDEX file, when decompressed. =A0There's > > one row of the file for each port, and each row contains 3 fields > > separated by '|' characters: > > > > =A0package-name|port/origin|space separated list of lib_depends port > > origins > > > > So, to extract the list of ports depending on www/jpeg: > > > > happy-idiot-talk:/tmp:% grep graphics/jpeg SHLIBS | cut -d '|' -f > > 1-2 | head -10 > > accerciser-1.6.1_1|/usr/ports/accessibility/accerciser > > at-poke-0.2.3_4|/usr/ports/accessibility/at-poke > > at-spi-1.26.0_1|/usr/ports/accessibility/at-spi > > dasher-4.10.1_1,2|/usr/ports/accessibility/dasher > > gnome-mag-0.15.8|/usr/ports/accessibility/gnome-mag > > gnopernicus-1.1.2_6|/usr/ports/accessibility/gnopernicus > > gok-2.26.0_1,1|/usr/ports/accessibility/gok > > kdeaccessibility-3.5.10_2|/usr/ports/accessibility/kdeaccessibility > > kdeaccessibility-4.2.4_1|/usr/ports/accessibility/kdeaccessibility4 > > mousetweaks-2.26.3_1|/usr/ports/accessibility/mousetweaks > > > > Again, this has a number of deficiencies. =A0For instance, programs > > that embed a perl interpreter will link against libperl.so =3D> > > /usr/local/lib/perl5/5.10.0/mach/CORE/libperl.so, but none of them > > register a LIB_DEPENDS on lang/perl5.10. [See for example > > net-mgmt/net-snmpd, www/mod_perl2] > > > > Similarly, programs that declare 'USE_MYSQL=3DNN' will have a > > LIB_DEPENDS on libmysqlclient.so.X added to their dependency mix > > even if they contain no compiled ELF binaries [See net-mgmt/cacti > > databases/phpmyadmin] > > > > However, I think that the deficiencies are not too intractable to > > fix, and this approach shows some promise. >=20 > There actually may be a much easier solution to this problem. >=20 > Gentoo Linux (I know -- Gentoo + Linux -- we're FreeBSD... blah :P) > has a script called `revdep-rebuild' which goes and runs ldd on all > pieces of software that are installed in portage (ok, substitute ports > here). What I'm driving at is that we can use pkg_info and/or the > mtree generated files to determine what files are installed, find out > which packages have been broken up an update, then rebuild the port > and all dependencies (LIB_DEPENDS?). What say you to that :)? sysutils/bsdadminscripts provides a script called pkg_libchk which does a similar thing. Emanuel
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