Re: [opensuse-buildservice] OBS: Endless loop for openSUSE:Factory?

14 Apr 2012

      On Fri, Apr 13, 2012 at 04:46:25PM -0300, Claudio Freire wrote:
...
On Fri, Apr 13, 2012 at 4:18 PM, Marcus Meissner  wrote:
...
osc triggerreason openSUSE:Factory gcc46 standard  x86_64
to see what triggered a build.
On PowerPC Factory the last bootstrap took 3 days.
I think a patch to priorize builds by how many packages it will
trigger a rebuild for is needed. If you build packages that trigger
the most rebuilds first, then bootstrapping would probably be
substantially faster.
It tries to be algorithmically correct....

Not all of the rebuild can be done in a "tree" form, especially 
for dependency cycles.

The core cycle for openSUSE:Factory is:
	acl , attr , audit , autoconf , automake , bc , binutils , bison , bzip2 ,
	cloog , cracklib , dejagnu , elfutils , expat , expect , fdupes , file ,
	findutils , flex , gcc , gcc46 , gdbm , gettext-runtime , glibc , gmp ,
	gpm , gzip , help2man , intltool , libcap , libdb-4_8 , libgssglue ,
	libselinux , libsemanage , libsepol , libtirpc , libtool , libustr ,
	libzio , linux-glibc-devel , lua51 , make , mpc , mpfr , ncurses , patch ,
	perl , perl-XML-Parser , perl-gettext , pkg-config , popt , ppl , rpm ,
	tar , tcl , tcpd , texinfo , translation-update-upstream , xz , zlib

( https://build.opensuse.org/project/repository_state?project=openSUSE%3AFactory&repository=standard )

In this set of packages it cannot decide easily which package depends on which
other, so it rebuilds them multiple times with some "magic" behind to stabilize
the build results.

Afterwards it goes into the "tree" rebuilding model for the rest of the distribution.

Ciao, Marcus
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