Time to say goodbye

So, time has come for me to realize that my time with Gentoo is over. I
haven’t actually been doing much Gentoo work over the last months due
to personal reasons (nothing Gentoo related), and I don’t see that
situation changing in the near future. In fact I’ve already reassigned
or dropped most of my responsibilites in Gentoo a while ago, so there
are just a few pet projects left to give away:
– my gentoo-stats project (in the portage/gentoo-stats svn repository).
I know quite a few people are interested in the idea of collecting
various statistic data from gentoo user systems, and I’d encourage
everyone who wants to implement such a system to at least look at it (I
may have even finished it if I wouldn’t have wasted my time focusing on
the wrong problems). There is quite a bit of documentation also that
should help to get you started
– a graphical security update tool (see bug #190397)

So if anyone wants to adopt those, complete or just parts, just take
them. As for Portage, Zac has practically already filled my role.

So I guess that wraps it up. It’s been a nice ride most of the time,
but now it’s time for me to leave the Gentoo train.

More extensions to package set support

After writing my previous post about set operators I’ve added a few more things related to package sets to portage. First, operators can now also be used inside sets.conf files using the extend, remove and intersect options, each taking a whitespace separated list of set names (without the @ prefix), working analog to the operators in set expressions described in the previous post. The main difference is that the evaluation order is fixed now (unions come first, differences second and intersections last) while in expressions it’s left-to-right.

The second new feature is that package sets can now be (re)defined on the emerge command line. This is done using the following syntax:
emerge '@setname{key1=value1,key2=value2}'
where setname can either be an existing package set, or a new one to define a set without having to modify any files. Note the quotes that are necessary to ensure that emerge gets the argument as-is without interference from the shell. The nice thing is this syntax also works inside set expressions. The not-so-nice thing is that for now there are a few restrictions about the values you can use, as there is no quoting mechanism implemented yet (this is planned however). So using any of the following characters or whitespace inside the braces will lead to undefined behavior: { } @ = ,
Another restriction is that you may not redefine package sets that are created by a multiset section in sets.conf (as those use different options that only make sense when defining multiple sets at once).
Note that for redefining existing package sets you only have to pass those options that should be different from the sets.conf definition.

And last but not least, to make the above features a bit easier to use there is also a new DummyPackageSet class that can be used to build a package set only by using operators, and/or to include a few packages without having to edit an external file. So it’s even easier than before to define a new set @world-without-system, using

Package set operators

Ok, just a quick notice that portage 2.2_rc10 (or 2.2 final if there isn’t another RC) will not only support package sets as defined in sets.conf, but also expressions to generate unions, intersections and differences of multiple package sets. This for example allow you to temporarily exclude @system from @world (assuming you have @system in your world_sets file) by running emerge @world-@system.
Other operators are / for intersections (select only atoms included in both sets) and + for unions. The latter is useful as expressions can contain more than one operator, e.g. emerge @kde+@gnome/@installed to reinstall all kde and gnome packages that are already installed (assuming kde and gnome sets are defined somewhere).

This feature is just a few minutes old, so it will probably be extended or otherwise changed in the future. Current restrictions include

  • strict left-to-right evaluation order
  • only defined package sets can be used as operands (no package names)
  • feature is currently only available on the commandline, not via sets.conf

And while I’m on it, I’ve also added a new AgeSet class to select installed packages that are older/newer than a given number of days.

Making the switch

So a few days ago fiefox-3 was pulled in during the regular system updates, and after a few hours of using it I must say: it sucks even more than firefox-2, which IMHO was already a regression from earlier versions. Actually I think that since they changed the name from phoenix [i]my[/i] user experience has gotten worse with each new version. Now I have to admit I’m probably not a typical user, so firefox-3 might be an improvement for the majority, but I’m really fed up with it.
As neither konqueror (kde-centric) nor opera (binary-only) are alternatives for me I looked out for other broswers out there today and noticed Arora, a new qt-webkit based browser and decided to try it out. And I must say I really like it so far, though I’ve only used it for a few hours so far. It feels a lot like older firefox versions, just without much of the “user-friendly” bloat they’ve added over time (e.g. the new fancy addressbar in firefox-3). It’s still a very early version, so obviously it’s lacking some features (like no flash support, though I consider that more as a feature :>) and probably has a few bugs, but at the moment I like it (much) better than what has become of firefox.

Portage-2.2_pre2 is in the tree

As of a few minutes ago a portage-2.2 test release is finally available
for public consumption. This is a test release (somewhere between
alpha and beta I’d say), NOT a release candidate, so expect a few rough
edges and not always up2date/complete documentation.

Please see the shipped NEWS and RELEASE-NOTES for changes from the 2.1
series, and check bugs.gentoo.org before reporting issues in

Note for Ebuild developers: This test release includes a partially
rewritten version of repoman that’s not heavily tested, so do not use
it for committing anything to the tree and double check its reports
with other tools or a 2.1 version.


Portage-2.2 preview

So, while Zac has been keeping everyone distracted with new portage-2.1 releases over the last months I’ve been mostly working on the new features in trunk, which will become portage-2.2, and I think it’s time to give a short preview about things to expect as we plan to release it before the end of the year, so the feature set probably won’t change much from now on:

  • The most important new things will be package sets. Sounds boring at first, I know, but due to a flexible framework they allow us (and you) to do interesting things, like eventually replacing glsa-check and revdep-rebuild (while the security set is pretty much identical to what glsa-check did, the set for rebuilding packages with broken linkage is very experimental, incomplete and not enabled by default yet). Or simply update or remerge all packages in a specific category. And that’s not even touching the power of the CommandOutputSet class 😉
  • Support for GLEP 42 news, as an alternative for package maintainers to the elog framework
  • Visibility filtering based on licenses, aka ACCEPT_LICENSE, which allows you for example to build a RMS-approved system and will render the interactive license prompts currently found in some packages obsolete
  • A new FEATURES flag to keep libraries that are still used on a soname change, including a simply way to rebuild all packages using the old library (using another package set). A bit too late for the expat issue, but hopefully it helps to prevent future incidents of that kind
  • And of course all the things that already appeared in portage-2.1.3

But no light without darkness, there will be some important changes requiring your attention:

  • While not set in stone yet, the behavior of system and world will likely change to match that of other package set and single packages. Currently emerge world is the same as emerge --noreplace world, meaning that installed packages aren’t rebuilt (unlike emerge $foo which will rebuild $foo). With 2.2 emerge world is likely going to be the same as emerge $(< /var/lib/portage/world), if you want the old behavior you’ll have to use –noreplace. That change also has other benefits beyond consistency, like removing the restriction that world/system could not be combined with other packages on the commandline.
  • “world” will likely no longer include “system”, if you want to update both you’ll have to specify both
  • Due to a change in the namespace many portage related tools will require an update or generate a lot of deprecation warnings.

As said, it’s just a preview, and some things are still work in progress, but it should give you a first impression what portage-2.2 will be about. I think we might create the first test releases in late November, but that’s no promise. Though if you want to test it you don’t have to wait that long, just install subversion and read http://www.gentoo.org/proj/en/portage/doc/testing.xml (that’s especially recommended for maintainers of portage related tools), just don’t expect everything to work perfectly yet.

[RFC] Properties of package sets

One missing feature in portage is the lack of package sets. Before we
(re)start working on that however I’d like to get some feedback about
what properties/features people would expect from portage package set
Some key questions:

– should they simply act like aliases for multiple packages? E.g.
should `emerge -C sets/kde` be equivalent to `emerge -C kdepkg1 kdepkg2
kdepkg3 …`? Or does the behavior need to be “smarter” in some ways?

– what kind of atoms should be supported in sets? Simple and versioned
atoms for sure, but what about complex atoms (use-conditional, any-of,

– should sets be supported everywhere, or only in selected use cases?
(everywhere would include depstrings for example)

– what use cases are there for package sets? Other than the established
“system” and “world”, and the planned “all” and “security” sets.

– how/where should sets be stored/distributed?

News on the portage front

So, it’s been a while since my last post, so people may wonder what happened since then within portage. Well, besides the usual maintenance releases of 2.1.2 there hasn’t been a lot of exciting stuff as I’ve been mostly inactive, but there are still a number of interesting things:
– We’ve decided that trunk will be released as 2.2, not 2.1.3, due to the structural changes in the codebase (which aren’t complete yet)
– I’ve finished Alecs work on the portage implementation of Glep 42 and added Portage support to the eselect module that was shipped with Paludis and made it compliant with the Glep, now we just have to wait for the eselect and Paludis people to get their act together for the module to be released (bug 179064)
– The new preserve-libs feature is now more or less complete except for the support in revdep-rebuild (more on this in a later post)
– KEYWORDS=”-*” is now completely unsupported, gvisible() will throw a warning if it encounters packages using it (see KEYWORDS.stupid for reasons)
– Zac merged the license visibility code (aka ACCEPT_LICENSE)
– lots of other minor things Zac merged that I don’t remember now, but most of those are also in 2.1.2
– I’ve added some basic instructions to our project page how interested people can use/test portage versions or svn without having to install them system-wide

There are still a lot of things I’d like to do, but most of those have been on the todo list for so long that it’s unlikely to get them into 2.2, as my time and motivation is quite limited these days.