On Thursday, August 13, 2015 04:13:43 PM Slawa Olhovchenkov wrote:
> On Tue, Aug 04, 2015 at 10:00:06PM -0700, John Baldwin wrote:
> > On Sunday, July 26, 2015 03:26:22 AM Baptiste Daroussin wrote:
> > > Hi all,
> > >
> > > I was botherd to not have the merge(1) utility available in base (for
> > > etcupdate)
> > > when building base WITHOUT_RCS.
> > >
> > > So I have rewritten a merge(1) utility which should be compatible.
> > >
> > > I used the 3-way merge code from the fossil VCS instead of making it call
> > > diff3.
> > > All I have done from the fossil code is adapting it to use sbuf(9).
> > >
> > > The bonus for end users is the merge from fossil can resolve situation
> > > where the
> > > diff3 in base cannot. (which explains a "failure" with the GNU RCS test
> > > suite)
> > >
> > > meaning etcupdate will be more happy merge configuration files.
> > Thanks! This will save me from having to hack etcupdate to use diff3
> > instead
> > of merge.
> Hi, can I use etcupdate to update /etc w/o source tree?
> I.e. I take from new distro /var/db/etcupdate and try to update /etc?
etcupdate does a 3-way merge of an "old" stock /etc and a "new" stock /etc
into /etc. The "old" stock /etc is always stored in /var/db/etcupdate.
The "new" stock /etc has to come from somewhere. One option is to generate
it from /usr/src (e.g. after a buildworld). However, you can also pregenerate
tarballs from a /usr/src tree on one machine and then use those tarballs
instead of generating an /etc tree from /usr/src on another machine. I've
used this for upgrades of a cluster of machines where a single machine would
build release "images" that were basically a buildworld + an 'etcupdate build'
from the corresponding src tree. I then used 'etcupdate -t /path/to/tarball'
to update /etc after installing the new world.
The idea is that for something like freebsd-update one could ship the latest
etcupdate build tarball on each update to do a full 3-way merge of /etc.
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