tech-pkg: Re: Smarter make update / pkg_chk algo

Subject: Re: Smarter make update / pkg_chk algo
To: David Brownlee <abs@NetBSD.org>
From: Greg Troxel <gdt@ir.bbn.com>
List: tech-pkg
Date: 05/26/2005 10:44:31

 I've added a tsort phase to the output of 'pkg_chk -l' - is
 that pretty much what you had envisioned at that point?
I had already made a hand-written pkgchk.conf that went from less to
more complicated, so just prepending dependencies was enough for me.
But tsort is even better (and -g should get this too). Probably
obvious to you, but this avoids recursive use of pkg_add, and
therefore needs a lot less PKG_TMPDIR space since only one package
need be unpacked at a time.
 I tend to use pkg_chk with -B, so an updated dependency would
 be cause for a package to also be updated even if its version
 was unchanged, but pkg_add -u would not update in this case.
The man page says "check" about -B, but I think this means "treat as
mismatch if 'pkg_info -b' output differs".
 Hmm - if you did not mind the order in which it ran you could
 just run 'pkg_chk -l | xargs pkg_add -u' and rely on pkg_add
 to skip those that did not need updating. In fact, with your
 change to prepend dependencies to the list that should just
 about cover the order (though ideally a tsort would get it
 completely right)
Would need -f, or perhaps pkg_add needs -b to cause -u to treat
differing build info as differing. Perhaps this should be the
default, although I think PKGREVISION bumps are supposed to address
this. But someone might update tiff, notice a shlib bump, and update
emacs without cvs update, getting a binary package that has the same
version but really does need to be updated.
 I use the output of 'pkg_chk -l' directly as a list of files to
 copy to a remote machine, so the pkg_dir in there would clutter
 it for me. Would you be happy with an option to display the
 pkgdir instead of the pkgname, or would you want both?
Sorry, I meant -i, when generating a list of packages that need
updating, so I get this:
devel/popt popt-1.7nb4: version mismatch - popt-1.7nb5
(which wasn't particularly machine-parsable to start with), and gives
me (and scripts) the directory to cd to for 'make replace'. I don't
want to let pkg_chk kick off make replaces, since I want to bound
lossage, and for cases like this (absent audit-packages complaining) I
don't feel the urge to upgrade. It would also be nice to tsort these.