16:37 flz 

Remove portbuild scripts from pcvs, as they now live in svn/projects.

06:24 linimon 

Allow the top-level build to be destroyed.  This is useless for
pointyhat, but is intended for pointyhat-[west|east] to be able to
remove no longer needed specialized -exp runs.  (They remain in the
errorlog archive; they can merely be removed from zfs.)

Replace this test with an anti-foot-shooting measure so that you cannot
remove 'latest' unless you have already removed 'previous'.

02:24 linimon 

Rename internal variables to correspond to their actual uses; automatically
create the links for the webserver; add some comments.

09:16 linimon 

Handle yet another error case.

22:55 linimon 

Generalize the packge building scripts to be able to be run on more than
one 'head' node, rather than just pointyhat itself.

Constants are factored out into installation-specific files known as
portbuild/conf/server.conf and portbuild/conf/client.conf.  There is
only one server.conf file.  Individual <arch> directories may have
their own client.conf files, or may symlink to ../conf/client.conf.

Several bugs are fixed and improvements are made:

 - archive directories are created  if they do not exist.
 - the location of ZFS-based directories is generalized.
 - the special string "-exp" disappears.
 - handling of buildid is made more robust.

Feature safe:   yes

06:47 linimon 

A few more loose ends.

Testing by:     miwi

03:25 linimon 

Make the create command more robust by making even more directories
and checking more error results.

07:54 linimon 

Remove a trailing slash on a directory name, that merely gets doubled
later in the code.

00:18 linimon 

Finally fix the 'build create' command to DTRT by reusing some already-
working code.  While here, clean up a bit.

09:09 linimon 

Fix permissions and 'latest' link.

08:52 linimon 

Remove a doubled slash.

08:37 linimon 

Implement the "build create" command.

11:01 linimon 

Reflect RELENG_9.

16:17 pav 

- Update to reflect a reality on pointyhat

16:24 kris 

Add a new script for performing high-level administration of a build.

   list : lists available builds
   clone : creates a new build by cloning a previous one
   portsupdate : update a ports tree to the latest ZFS snapshot
   srcupdate : update a src tree to the latest ZFS snapshot
   cleanup : clean up or remove a build on the clients
   destroy : remove a build on the server

There is some trickiness here in that various commands either expect
to run as root, or expect to run as a ports-* user.  For the latter
case we can easily use su to proxy as the ports user when running as
root; for the former we use the buildproxy to validate and re-execute
the command as root.

13:22 kris 

NNew build scheduler written in python to replace the make+sh job
ordering, which had become too limited.

We now build packages ordered by those that are part of the longest
dependency chains first.  This has the effect of building the deepest
parts of the tree first and levelling out the tree height, hopefully
avoiding the situation we currently face where there appear
bottlenecks late in the build where the cluster becomes mostly idle
while waiting for a few long dependency chains to finish building
before the cluster can become fully loaded again.

The algorithm is that we sort the list of remaining packages according
to height (longest dependency chain), then add leaf packages from each
in order until we have filled a queue of length between 100 and 200,
to amortise the cost of this queue rebalancing while not losing the

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