For those that might have been wondering where was that guy speaking about imminent stabilization of gnome 2.26, well I was taking some time off (sort of). The Gnome 2.26 situation got a bit better in the last weeks as due to the production of a release media, a lot of dependencies we were waiting on are finally getting stabilized. You can still see progress on bug #263083, closer than ever !

Since I can't stand working on Gnome 2.26 anymore and since upstream has been kind enough to drop their new almost shiny 2.28, I started doing some QA on ebuilds in overlay before allowing them to move to the tree. Over 92 ebuilds, all of which are not necessarily interesting for gnome 2.28, I've currently reviewed 25 and that's with current 65% of completeness of the ebuild bumps, so there is still quite some work, and don't expect the overlay to be safe for use just yet.

One last word on 2.26, there will be a migration guide, it's still getting a few modifications before it all goes public with stabilization but I'm spreading the word in the hope that we won't see any new bugs concerning what has been documented.

Turned out that xorg-server 1.6 is pretty much ready for stabilization, as only a handful of bugs were reported over the testing period since last week, and they only concerned the stabilization list.

Without further ado, I've asked our faithful Arch Teams (pretty much all of 'em) to stabilize xorg-server 1.6 and friends. amd64 was the first one to the finish line with a stabilization done in under a day!

Gentoo is again back in business for X. Woo!

Now to all stable users, don't forget to read the upgrade guides we wrote :

• server upgrade guide
• libxcb upgrade guide

Don't forget, please file bugs in bugzilla.

So I've been playing with mouse interaction (I stoled some code from Curses::UI, but treid to go the extra mile), and finally I am able to handle mouse interactions within Curses::Toolkit

Curses::Toolkit can now listen to and intercept any mouse button events. You can add a Curses::Toolkit::EventListener::Mouse::Click to any widget, so that it becomes mouse aware.

By default, I think I'll add some mouse interaction to the widgets. For instance Widget::Window already have mouse upport, as I show in the video. I'll add mouse support for Widget::Button, and probably other widgets as well, at least to handle the focus.

The issue is that I fail to catch the events of the mouse moving, I catch only the button events. That's why I can't draw the windows when moving them. Ncurses is supposed to let you catch the mouse positions when moving it, but I failed to get that. Maybe it came from my terminal as well. If you have any idea about that, I could use some help here !

Also, speaking of the terminal, I use Terminal.app usually, but I failed to configure it to catch mouse events (like mouse clicks). I thought it was possible but I had to use iTerm, which in turn I fail to configure to dicplay nice graphical-like borders and corner characters. If you have any clue on either how to configure Terminal.app to catch mouse events, or how to configure iTerm to properly render special characters, please let me know ! :)

Let me introduce a new widget in the Curses::Toolkit world : Widget::Entry.

Nothing much to say about it, have a look at this video. I tried to have the Entry widget to support basic shortcuts, and behave like one would like it to behave. I still to add some stuff to it, but it's in decent shape. Enjoy.

Hello again !

Let's see what's new on the Curses::Toolkit front. Please see the previous posts for the background story.

I have finally worked out a reasonable way to have themes that allow for some advanced customization. Having a theme that defines the colors, if some text should be displayed in bold or in reverse mode is straight forward. However, having themes that can customize the shape of a widget, the way it's placed and drawn is more complicated.

It's hard to find the right balance between on a rigid widget toolkit with a very simple theme engine that allow barely any customization but is very easy to use, and a complicated theming system t hat allows full control on the shape of the widgets but is hard to manage and use, leading to no one willing to expand it.

So I went for a simple pragmatic approach : the basic drawing primitives (drawing a string, a border, a corner, etc) can be themed regarding colors and line style. For the advanced customization, i t's up to the widget classes to declare what can be customized in them. For instance, a Widget::Border declares that its border size can be customized. a Widget::Window inherits from Widget::Border, so if its border size is positive, the border ad the title which is displayed on it will be visible. The Widget::Window itself declares that its title can be placed in the center, right, left, etc.

So the widgets declares what can be customized in them, and their various methods (drawing methods, or coordinates computation) take in account these various parameters, and their parent's ones. Oh it's nothing revolutionary, and if I was implementing a graphical toolkit, it would be unmanageable, because too simple. But because we are in the ncurses world, the possibilities of customization are limited, and the level detail is lower (we are manipulating characters here, not pixels).

So I think this approach is not too bad. Besides it allows me to implement a widget at first without any theming characteristics, then add them later on when I'm polishing its rendering methods.

As soon as I'll have more widgets, I'll see if this way of doing it was a good decision :)

"Aaaaanyway" (as would t0m say), when I started this post I wanted to say that I changed the default theme and the rendering of some widgets, so here is how it looks now. Oh, yes, the yellow on bla ck is horrible, but I'm not a designer. Or a lawyer, for what it takes.

You'll see I've improved the window widget, it can now have a title, that has a nice animation if its title is too long.

Philippe Bruhat (BooK) was kind enough to host me ( and a friend of mine ) yesterday evening and this morning.

BooK is a nice guy, very involved in the Perl community : among other things, member of the YAPC Europe Foundation and YAPC::EU Venue Committee, president of the French Perl Mongers, member of various mongers groups.

He is also a very good cook, we tested his Tiramisu and home-made pizza. Thank you BooK for the stuff you do for Perl, and for being a good friend !

( that was my "loosily Perl related post while coming back from holiday" ). Stay tuned for more soon :)

As you may know, last week the French Perl Workshop 2009 took place in Paris. It was a nice conference in french, where various subjects (mostly Perl related) were presented.

I gave 2 presentations :

• one on how to build a POE::Wheel, using POE::Wheel::GnuPG as example.
• one on Curses::Toolkit. You can watch the video record here. Beware, it's in french ! :)

Hello, it's time again for a small video on Curses::Toolkit.

The first part of the video shows some buttons that can have the focus, and I hit tab to switch focus. Window resizing is also supported.

The second part of the video shows a button that - when clicked using space bar - generates a new buttons, add it to the HBOX. These new buttons can themselves receive focus and be clicked to create a third type of buttons.

What's next ? I'll post about key events and key listeners, I'll try to add more widgets, and at some point publish Curses::Tookkit to CPAN.

In the mean time, enjoy.

It's this time of the year again !

The French Perl Workshop is starting tomorrow for 2 days in the wonderful city of Paris, France. It's organized by the French Perl Mongers.

A bunch of interesting talks, quite a lot of people are planned. I have to say that this year's edition looks very promising, due to a very efficient team that spent a lot of effort to organize it. Of course we'll see how well it was at the end of the two days, but I'm really excited about this edition.

I'll give 2 talks, on POE::Wheel and Curses::Toolkit. Nothing really major (compared to talks on Perl 5.10 or Perl 6...) but every little helps, I guess.

Hm, OK the real reason I'm writing this blog entry is that I'm still missing about 30 slides for my talk that is tomorrow, and it's already late, and I can't motivate my brain to actually do it. Is it the fatality that whatever effort you put in preparing things in advance, you always find yourself writing the slides of your talk the night before ? I guess that's Murphy's law...

Seriously, have you ever given a talk (for the first time) with the slides ready days or weeks ago ? If yes, let me know how you manage that :)

Anyway, if you are in Paris the next days, please head toward the Cité des Sciences and come see us !

1. Focus, the details

Please refer to the previous post for the context about Focus. Basically, Curses::Toolkit is a Perl software toolkit that let's you create nice ncurses based interfaces. It extensively uses widgets, that can have the focus.

As I said in the previous post, not every kind of widgets can have the focus : only a widget that can be interacted by the user should be focusable. For instance, a Label doesn't offer by default any interaction to the user. So a Label widget is not focusable. Likewise, a Border is just displaying a graphical border, and doesn't offer interaction to the user, so same, a Border shouldn't be focusable.

Now let's have a look at the Button widget : it should clearly be focusable, as by default a button is clickable, and do be able to "click" it using the keyboard, the user needs to position the focus on the button and trigger the enter key or the space key. So it's obvious that the Button widget should be focusable

Now let's think about the implementation : the Button widget class is just an nearly empty class that inherits from Border, provides a facility constructor that would add a label in the Border. So a Button widget is basically a Border Widget. But we want to add the focusability concept. That is the situation where you would use words like interfaces, mixins, traits and roles. I like the concept of Role, and I think it suits the purpose here, so I decided to implement the focusability with a Role.

2. Roles

A Role is basically some features (code, attributes), that are injected in the class, but unlike a mixin, it is possible to see from which roles a class has been built from, and change that. Moose offers a great implementation of Roles, as does Perl6. Alas, I haven't yet converted Curses::Toolkit to Moose, so I needed a pure Perl5 solution : multiple inheritance !

Right, multiple inheritance is wrong, it's bad, it's pure evil. That's what you've been told at least. I have to say it's true, multiple inheritance is very rarely a good thing, and it can generate a lot of issues (and make it inherently more difficult to fix them).

However in this case, I thought I could use it, provided I take care of limiting the use of multiple inheritance to implement Roles, and be careful not creating the infamous diamond-of-death structure.

3. Implementation

Here is how the Curses::Toolkit::Widget::Button class look like :

package Curses::Toolkit::Widget::Button;
use parent qw(Curses::Toolkit::Widget::Border Curses::Toolkit::Role::Focusable);

By inheriting from Border, we get all its attributes and methods. By inheriting from the Focusable role, we also signify that this widget can be focused. Let's look at the content of Curses::Toolkit::Role::Focusable :

package Curses::Toolkit::Role::Focusable;
[...]
sub new {
    my ($class) = shift;
    die "role class, has no constructor";
}
[...]
sub is_focusable {
    my ($self) = @_;
        return 1; # in real life it's less trivial 
}
sub is_focused {
        my ($self) = @_;
        return $self->get_property(basic => 'focused');
}
sub set_focus {
        my $self = shift;
        my ($focus) = validate_pos( @_, { type => BOOLEAN } );

        if ($self->is_focusable()) {
                $self->set_property(basic => 'focused', $focus ? 1 : 0);
[...]

As you can see, we protect users from instantiating this class, and then we implement the various role attributes and methods. This implementation is easy to use and flexible : to know if a widget is focusable, just use :

$widget->isa('Curses::Toolkit::Role::Focusable');

Once you know it's focusable, you can use set_focus, is_focused, etc...

One could also imagine needing to remove the focusability at run time on an existing widget. filtering out Curses::Toolkit::Role::Focusable from its @ISA would do the trick, even if it's not very clean.

So, I know all this is not very modern, and it'll disappear when switching to Moose (and Perl 6 soon ?), but in the mean time, I just wanted to share this trick. Eh, it's not everyday you can argue positively about multiple inheritance !

PS : I am by no mean a good OO designer, and what I just exposed might be just plain wrong. I'd be more than happy to be enlightened :) If there is a better way to do this in old-school Perl5 way, drop me a note.

Today let's have a look at a widget I'd like to implement in Curses::Toolkit : a Button widget. That doesn't look very difficult, but in fact you'll see it requires that a lot of things are in place under the hood for the Button widget to be fully usable.

At a first glance a button is very basic : it has a border, a label, and you can click on it. Actually, it can have anything inside, not only a label. So a Button can be designed as a widget that inherits from Border, and that has an additional constructor ( new_with_label ), that would create and add a Curses::Toolkit::Widget::Label in the border. The button class is Curses::Toolkit::Widget::Button.

So far so good. However, a button is not a button if you can't click on it. That means a new concept needs to be added : the "click" event, or something similar. But to be able to click it, the user has to be able to focus the button. So here we go, a new concept : focusability !

When a widget has focus, it means that the user can interact with it. But not all widgets can be focused : a border as no interaction to propose to the user, so a border should not receive the focus. However, a button is something that can be interacted with, so it should be able to be focused. To implement that, I decided to use a Role. I'm not yet using Moose in Curses::Toolkit (I'll switch to Moose at some point), so I'll implement Roles using multiple inheritance, a Role being an abstract class. With some care, I shall avoid multiple inheritance caveats. This new Role is called Curses::Toolkit::Role::Focusable. I'll come to the details a bit later.

So when is a widget (that is, the class of the widget) focusable ? When it has the Curses::Toolkit::Role::Focusable role. AND when it's sensitive. Indeed, I'm sure you remember these "grayed-out" widget in modern graphical user interfaces ? It's the sensitivity of the widget that determines if it's normal or grayed-out. When in non-sensitive state, a widget cannot be focused. So again, a new concept : sensitivity. We'll say that upon creations, widgets are sensitive.

Sensitivity, focusability, that's nice, but the user needs to be able to click on the button, and change the focus. We'll start by implementing "clicking" with "pressing a key on the focused widget". We'll see how to support the mouse a bit later. Curses::Toolkit needs to be aware that the keyboard has been used, and have a mechanism to handle the keystrokes. That implies to have some sort of events to send the information related to the keyboard. And also to have some kind of event listeners that the user can set, to listen to an event and act accordingly.

That's indeed a lot of new concepts introduced. We'll see in the next posts how to implement them.

Today I'd like to present POE::Wheel::GnuPG (source code here ).

I guess you know what GnuPG is. Right, so when you want to encrypt/decrypt data or do other GPG actions in Perl, the best thing to do is to rely on a GnuPG module. I always use GnuPG::Interface because it is very reliable : it's just a wrapper around a fork/exec of the gnupg program installed on your system. Granted, the drawback is that you need gnupg installed and executable, and this is not suitable for all situations. But the benefit is that it's fast, and it's not subject to bugs of pure Perl (or other languages) reimplementation. And it gives you access to all features of GnuPG, like keys management, etc...

So far so good, using GnuPG::Interface is not completely trivial, but it's easy enough. Now, I was trying to solve the following issue : imagine you have a very big encrypted file to decrypt. It's not likely to fit in RAM, but for security (or other reasons), you don't want the decrypted content to be saved in a file. What you want is decrypt the file bits by bits, and process the decrypted file as soon as data are available.

To do that, we'll create a module that interacts with GnuPG::Interface and do non-blocking monitoring of file handles to check when crypted data is needed, and decrypted data is available. I soon realized that this module would be a perfect candidate for a POE::Wheel, as POE provides all necessary tools to monitor file handles and child processes.

Let's see how to use POE::Wheel::GnuPG to do a simple encryption :

  # use POE with the wheel
  use POE qw(Wheel::GnuPG);

  POE::Session->create(
    inline_states => {
      _start => sub {

        # initialize the wheel with the bare minimum
        my $gnupg = POE::Wheel::GnuPG->new(
          ready_to_input_data => 'ready_to_input_data',
          something_on_stdout => 'something_on_stdout',
          end_of_process => 'the_end',
        );
        # Save the gnupg object in the heap for later use
        $_[HEAP]{gnupg} = $gnupg;

        # The Wheel inherits of GnuPG::Interface so
        # it's supports the same options.
        # I indicate that I want an ascii encrypted
        # content, crypted against my gpg key
        $gnupg->options->hash_init(
                        armor   => 1,
                        homedir => '/Users/dams/.gnupg' );
        $gnupg->options->push_recipients('dams@gentoo.org');
        $gnupg->options->meta_interactive( 0 );

        # Let's start the encryption !
        $gnupg->encrypt();
      },

      ready_to_input_data => sub {

        # This is called when gnupg is ready to receive
        # the data to encrypt
        my $input_fh = $_[ARG0];
        print $input_fh "This is the secret data!";

        # This is important to signify gnupg that it should
        # not wait any more data to encrypt
        $_[HEAP]{gnupg}->finished_writing_input();
      },

      something_on_stdout => sub {
          # And now we can read the crypted data
          # from the filehandles
          my $stdout_fh = $_[ARG0];
          return if eof $stdout_fh;
          my @output = <$stdout_fh>;
          print "Received crypted data : @output\n";
      },
      the_end => sub {
          # clean up
          $_[HEAP]{gnupg}->destroy();
          exit();
      },
    }
  );
  POE::Kernel->run();
  exit;

For more detailed usage description, see the POD.

That program performs a simple encryption. In the POD, I provide an example to do asynchronous decryption : check example n°1 in the SYNOPSIS

I used this example to decrypt a big file, printing out the character '.' when sending an encrypted line to the wheel, and printing out 'O' when reading out a decrypted line. Here is the start of the output :

macpro:bin dams$ perl ./test.pl
..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
..................................O.O.O.O.O.O.O.O.
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
[...]
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
[...]

And so on. You can see that the encrypted data is first read to fill up the buffer, then decrypted data is read out at the same time. At some point, there is too much decrypted data to print, that's why there are a lot of 'OOOO's. Then it all starts again :) I think it's a good demonstration of asynchronous GPG decryption !

On Monday 21 September we packed the majority of our belongings into the back of a Penske truck and made the 500 mile drive (in convoy - Louise, William, Dax and myself) from Pittsburgh, PA to Clifton Park, NY. Since then we have been unloading the truck, unpacking our things into our new home and doing all those things you have to do when you move house, and several things necessary when moving between states and jobs.

This is certainly the most rural house I have lived in since I was very young. We found a nice duplex on the outskirts of Clifton Park, it uses well water and I am the proud owner of the contents of two full propane tanks (no natural gas lines run out to the house). We also have a really nice wood fire in the living room, and I snagged the family room and am using it as a large home office! Thankfully they were able to hook up a cable Internet connection on Tuesday last week, and so I was not offline for too long.

Tomorrow is my first day with Kitware, I will be attending a training course being run by Kitware for the remainder of the week and so won't have my first day in the office until next Monday. I will be working in the scientific visualization group on projects such as ParaView, and have had lots of ideas for future Avogadro development over the last few weeks. I am very much looking forward to working in some new areas, but also to enhancing the previous research and development I have done in the area of visualization in chemistry. I am also looking forward to working on CMake.

I found this article on Wired about Netflix, and their plans for global domination, which is stuff I always love reading about.  There's two things about the future of television and movies I would totally love to see:  First, for cable to completely fall on its face, and everything to become on-demand.  Second, for video rental stores to go out of business so that on-demand will be the most efficient way to get stuff.  Fortunately, it seems that the markets are heading that way naturally.

However, while Netflix is certainly the best contender right now, I think it's worth pointing out that the content is still in its infant stages.  Netflix can stream some movies, sure, but it's selection is not anything compared to say, iTunes, in regards to music availability.  One thing Apple did quite well was it got *all* the major studios to sign on to sell their music.  That means that you can expect to find everything mainstream right there without much difficulty.  Compare that to Netflix, who has *zero* major studios signed on right now.  Hopefully that will change, but everytime I see articles like the Wired one, that tout Netflix's library, I feel the need to clarify to people so they don't get suckered in.

For example, here's a quote from the article, "And the devices won't just be streaming remaindered basic-cable or art-house fare: Already, Netflix customers can call up just about any episode of SpongeBob SquarePants, The IT Crowd, or Lost whenever they like. They can watch recent releases like WALL-E and Pineapple Express. In other words, they can get unlimited access to the kinds of programming that previously required a cable subscription." (emphasis mine).

Just reading that, it *sounds* like Netflix is a drop-in replacement for cable access, which is not the case at all.  Rather than trying to read between the lines and saying something like, "Oh, they have everything between Wall-E and Pineapple Express", it's far more accurate to say "Oh, I can watch Wall-E *or* Pineapple Express."  The selection simply isn't there.

A few weeks ago, I bought my brother a Roku Netflix Player for his birthday (I'm such a nice guy, I know).  He has two small kids, and one of the main reasons I got it was because Netflix *does* serve up a lot of children's programming -- quite a lot, actually -- and I figured he would find that useful.  It's all available on demand, simple bookmarking, easy pause and resume, easy interface, etc.  I talked to him about a week later and one of the first things he mentioned about it was that there weren't hardly any new movies on there.

Right now, their only real provider for new movies is Starz Play.  If you have an account for Watch It Now, and want to find the new stuff, that's really the only place to look.  Plus, it's really hard to find stuff as well.  The website for browsing DVD releases on the Netflix site is amazing.  It's intuitive, it's quick and easy to search and find stuff, it's great at recommendations and it gives you lots of info in lots of ways.  Now, compare that to the Watch It Now navigation menus which are *completely* different.  My take on it is that there is so little content there, that they forcibly dumb down the interface to obfuscate the fact that there's really nothing there.  It's just taking the small amount they have, and spreading it around really thin so it looks like it's more than it is.

So, anyway, while I really hope that Netflix does the right thing, and business-wise, they are poised to take over the market -- Hollywood is holding them back.  I wouldn't blame Netflix in the least.  It's impossible to download *all* the new releases from any service anyway (from what I've seen).  For instance, X-Men Origins: Wolverine came out on DVD the other week, and I wanted to check it out.  I didn't really feel like going down to Blockbuster to get it, so I checked to see if any of my online pals were serving it up.  The Playstation Store had it, but you had to buy the movie, in standard definition, for $14.  No thanks.  Amazon's Video on Demand didn't have it, and neither did Netflix.  I realize that's a small sample to choose from, but there's really not many more services out there -- I think iTunes sells / rents new movies now, but I don't have a way to watch them on my TV anyway, so I didn't bother checking.

Once Hollywood gets on board, then things will really take off.  I read in the news how Blockbuster isn't doing well, and they are the last legacy distribution market.  I kind of can't wait for them to stumble, because if they are gone, the studios will have no other medium to even sell / rent new movies through, except through newer, leaner retailers like RedBox, Netflix, and on demand services.  The future can't get here fast enough for me.

Global Financial Derivative trading company, OSTC Poland, uses Gentoo Linux in significant sectors of its IT infrastructure. We spoke with long time Gentoo user and head of OSTC Poland's IT department, Patryk Rządziński, to learn more about how and where Gentoo is used. We discovered, as you will read in the full interview, that Gentoo, and more generally open source software, serves well in the commercial world.

Hee, hee, hee, this was fun.   On Saturday I got to take my little brother out, and I had a great idea this time around.  There's this place in Lindon, Utah (about 20 minutes or so south of Salt Lake) called Jump On It, which is basically an empty warehouse full of all these trampolines joined together.  It's awesome.

I've driven past the place plenty of times and thought, "eh, I should probably go there."  Then I remember my friend Jason wrote about going there one time, and that made a trip even more necessary.  I don't know how I got the idea to go this weekend, it just popped in my head, but I'm glad I did.  I looked it up online, and it's only $8 an hour to go jump around and do whatever you want.

The concept is so incredibly simple, but it is so well done and so much fun.  There are probably at least twenty trampolines just all next to each other, which make this huge, very fun square that you can just jump around in non-stop.  And you can get going fast, really fast, with a lot of momentum.  And you can flip around and hit the sides and just bail and not hurt yourself.  It's awesome.

There are two areas for trampolines, too, there's a smaller one for kids four feet and under, where the tramps are a lot less springy, so you won't go nearly as high.  The other ones are for any size / age group, and the springs there are really tight.  I grew up with a trampoline, so I know all the tricks and how to get really, really high, and I managed to nearly touch the ceiling I was bouncing so high on those things.  Holy crap, that was a feeling.

Here's a pic of the kid's one.  I really, really wish I had taken my camera with me to get some decent shots.  This one is from my cell phone, which is craptacular when it comes to taking action shots, so I had to tell my bro to stop for a second so I could take his pic.  He does not look too thrilled to pause for me.  I can't really blame him.

The other thing that really amazed me is how fast I got worn out.  I didn't think it'd take that much energy, but man, after the first 10 minutes I was about ready to pass out, I was working my body so much.  I had to constantly take a break so I wouldn't throw up / pass out.  The hour sure went by fast, and I'd say I got more than my money's worth.  I gotta get into better shape, and go back.  It's a total blast, and this post hasn't done a great job in the least documenting how much fun it is.

I have still been, for the most part, extremely hesitant to purchase anything on Blu-Ray just yet.  My modus operandi so far has been to rent a lot of them to see how the quality is compared to the DVD to see if a repurchase is justified.  So far, this approach has been serving me rather well, and I've discovered very early on that it's nowhere the same across the board.  Some movies look awesome, some look okay, and some look like they just dumped the DVD transfer onto the new medium without a thought (which is really noticable, too).

Switching from VHS to DVD was an obvious decision, an upgrade that would have been hard not to argue for.  I imagine I'm getting old if I can even reminisce about such times.  I remember right when DVDs first started coming out, and I would keep a watchful eye on how things were progressing (anyone remember DivX?  What a nightmare).  It's really interesting to see how much the tables have turned in some regards.  Disney was a huge holdout on DVD, and eventually came along with feet dragging, but now, they make the best Blu-Ray editions, bar none.  Universal sucks across the board -- their Blu-Rays have been less than impressive (I just watched the Bourne Trilogy the other week, and the first two were nothing to write home about).  And then, there's Paramount ... who distributes Star Trek.

All the movies except Insurrection and Nemesis got released on Blu-Ray last week, and I have been really excited to check them out (edit: okay, actually I can't find the first one on it's own release ... I must have rented the one from the trilogy set, oh well.  I know the other ones are out though).  I've thought about buying them out-right, but I'm a bit cautious considering the studio's past foray into the market.  What they tend to do is create a money grab by releasing the films a few times in different editions.  First, they'll put one edition out, just to have something people can buy, and then later on clean it up, add more special features, and tout that one as a better upgrade.  It can be a bit maddening, and expensive.  So, I added the first few films to my Netflix queue, to see how well these new transfers held up, and I got to watch the first one this weekend: Star Trek: The Motion Picture.

All I can say is, wow, they did a nice job.  The picture is gorgeous.  For a movie that is so old, I was extremely skeptical that they would even be able to do anything with it at all.  But on my HDTV, the picture was just ... more clear and vibrant.  That's the best way I could describe it.  Some films don't hold up to the test of time when being presented in a larger format, but this one looks like it just came out.

I wish I had a Blu-Ray drive so I could rip the disc and get some snapshots, but that'll have to wait.  I keep thinking of a few scenes that showed off the detail so well that they would do a much better job explaining what I'm trying to get across.

I can't say much about the sound, since my setup is 3.1 (no rear speakers).  Besides, my speakers are from an off-the-shelf surround sound setup, and not really good quality.  I've got it in my sights to eventually replace it with something decent, but that's a major hop and a skip away.  I'll just wait on that one.  For what I heard, it did sound really good though.  I really love how in this movie, it opens with the score for a few minutes and you just get to hear the long version of the Star Trek theme.  Great stuff.

There was only a few spots where there were any video issues at all.  Again, if I could take a screenshot, I would.  It's not that they were bad, it's that it was more like "uh, how did you miss *that* big black blotch right on the front of the Enterprise."  It happened twice, briefly, and that was it.  Aside from that, the only parts where the film quality was lacking was a few scenes which were probably just notoriously hard to clean up, so they didn't -- the ones where the probe from V'ger is on the bridge of the Enterprise, and it's zapping it's way around.  The shot was really fuzzy to start with, and you could notice a huge drop in quality and cleanup for the few seconds that the shot took place.  Again, not a dealbreaker, and in fact you'll see the same thing on the DVDs.

Overall, I'd say this one was well worth the price.  I started playing around with the special features, but didn't really get far because I was tired.  It does have this cool on screen index you can access while the movie was playing, that I thought was really innovative.  It'd give you descriptions of certain Star Trek topics related to the film.  There was also an audio commentary track, though I didn't bother listening to it.

I'm definitely gonna get a copy of this one though, given the chance.  I've got the other ones in my queue and I'll write up a review as I watch them in the next couple of days.  Tell you what.

So, apparently the new PSP Go is going to hit shelves soon.  I totally keep forgetting about it.  While it looks pretty freaking cool, there are a couple of things that are keeping me away completely, and I'd have to think long and hard about getting one.

First of all, this sucker is freaking expensive.  $250.  Eek!  That's only $50 less than a PS3, although that'd be a little harder to lug around in your pocket.  I still have a PSP-2000 or whatever the number is, I know it's not the first generation one, and it works really well.  Sure the UMD thing is slow and cumbersome and sucks power like uh ... something, but it works fine.  And it's about $100 less retail.

This is my *real* beef though with the system -- it only has 16 GB onboard memory.  That could arguably be a reasonable amount, except that this PSP is entirely digital.  The only way to get games is to download them to the flash drive.  On top of that they are marketing it as a great portable movie player.  16 gigs is not a lot of space to play with.  If they had 40 in there then I might start thinking about it, but that still brings me to the next point.

It *still* only accepts Sony Memory Stick Pro Duo (man, what a mouthful) for the extended storage.  Normally, I wouldn't care -- Sony has their own format, yay, whatever, good for them.  But they are priced exhorbantly high.  A 16 GB flash card, that would double the system's space, costs $72 right now on Amazon.  Not only that, but that's the highest storage capacity available.  So, you're going to cap out at 32 GB.  That's a lot, I suppose, but if I wanted to tout around movies with me, I'd still want more space than that.  I dunno.  But at this point you're talking $320 to carry around max storage.

The last thing that has me worried is that all the games are digital.  I'm a big believer in the second-hand market for used games, and the new PSP just guts that opportunity completely.  You want the game?  You buy it new, and you pay full retail price.  Normally, I wouldn't have a problem with that, but what happens with digital games is that when there is only one source to get them, I've noticed that the price does not go down.  Ever.  At all.  Games that are listed for sale at launch point that originally start at $40 or so, might eventually go down an extra $10 or so, but after time, it just stays there, and it's always going to be prohibitively expensive.  That's a problem.  What's worse, is that you would think that after five years or so the price would come down, but by then the owner / manufacturer / retailer has completely forgotten about it, so nothing ever gets changed.  It's really going to screw up the economics, I think, when there's only one way to get a copy of the game (well, legally, of course).

So, while I'd love to get one, I think next time I have a spare $250, I'd probably be putting it towards getting something else.  I think the PSP Go is a great idea, in concept, but too expensive and not enough storage.  I could get past the all-digital downloads, eventually, I assume.  I'd still like to see some way to get a second hand market in there though -- it would really drive things along.

Edit: Whoops, apparently it uses a different format -- Memory Stick Micro M2 (or whatever order that goes in).  The pricing is just as bad, though.  $80 for a 16 GB stick.

I watched "Dan In Real Life" again this weekend (on Blu-Ray, wow it looks nice), and it is quickly becoming one of my favorite movies.

What's interesting, that I have noted, is now that my DVD movie collection is pretty much rounded out -- save the consistent three or four I always forget about and are on my wishlist to get someday -- is that now I get to see which ones I watch regularly.  What surprises me is that it's always the dramas.  There's a few classics that I keep returning to, to watch over and over again, and the great thing is that I enjoy them the next time as much as I did the first one.  It's awesome.  This movie is quickly becoming one of those, too ... I think this is the third or fourth time I've seen it, and it's not even close to becoming old.

If there's one type of movie I can never watch again, it's suspense / action movies.  Ones where they have you gripping / guessing what's going to happen in the end.  I don't like the sense of anxiety it creates, and besides, once I figure out what happens (by watching the movie) the feeling can never be recreated, and watching it again is really just torture for me.  So, there's a lot of movies -- really good ones, even -- that I refuse to buy only because I can't possibly sit through it again.  Movies like The Lion King, Finding Nemo and Toy Story come to mind (that's odd, all animated Disney ones ... go figure).

Anyway, dramas are for me.  And this is a great one.  I managed to score a copy on Blu-Ray for only $10 on Amazon which I could not pass up.  I don't remember the actual timeline, but I think this was one of they very first movies on Blu-Ray I saw ... well, I definitely remember that the colors were so gorgeous, and the transfer was so well done, that it convinced me to stop scoffing the format, and instead give it a chance.  It was probably then that I realized that *recent* movies on Blu-Ray look gorgeous.  And they do.  Wow.  Good times.

(For readers on planet.g.o: This one is in German language only, but i do consider this important enough to be published on planet.g.o although.)

Wichtig: Ich schreibe hier als Privatperson, nicht als Vorstandsmitglied des Förderverein Gentoo e.V.!

Die am vergangenen Freitag stattgefundene Mitgliederversammlung hat sich mehrheitlich dafür ausgesprochen, den Förderverein Gentoo e.V. aufzulösen. Entgegen der Tagesordnung wurde mangels Kandidaten kein neuer Vorstand gewählt, so dass der bisherige Vorstand weiterhin geschäftsführend im Amt bleibt. Alle Mitglieder des Vereins werden in den kommenden Tagen angeschrieben und zu einer außerordentlichen Mitgliederversammlung eingeladen, die voraussichtlich am 07.11. in Bottrop stattfinden wird und in welcher über die Auflösung formal beschlossen werden kann.

Vorweg: Auf die Gentoo-Distribution an sich hat dies keinerlei Auswirkungen, Gentoo ist nicht tot und wird weiter bestehen – auch unabhängig von einem Förderverein im deutschsprachigen Raum.

Was ist der Förderverein Gentoo e.V.? Der Verein wurde im Herbst 2003 am Rande der Practical Linux in Gießen mit dem Ziel gegründet, die Verbreitung und Präsenz von Gentoo im deutschsprachigen Raum zu fördern und unterstützen.

Warum will sich der Verein auflösen? Es konnte aus dem – kleinen – Kreis der bei der Mitgliederversammlung anwesenden Mitglieder kein neuer Vorstand gefunden werden. Die Mehrheit der anwesenden Mitglieder sieht keine Perspektive den Verein weiter sinnvoll zu betreiben. Es ist seit Gründung des Vereins im Jahr 2003 nicht gelungen, eine kritische Maße zu erzeugen, die sich und den Verein gegenseitig pusht und weiterbringt, aktiv am Vereinsleben teilnimmt. Realistisch betrachtet war ich in der vergangenen Zeit ein Einzelkämpfer – zu wenig für einen Verein.

Welche Konsequenzen ergeben sich aus der Entscheidung? Die Präsenz von Gentoo auf Messen und Veranstaltungen wird darunter leiden. Auch wenn es um den Verein in der Vergangenheit ruhig war, konnte dieser dennoch über Mitgliedsbeiträge und Zuwendungen die Finanzierung von Flyern und Bannern, Vorfinanzierung von T-Shirts, etc. pp. sicherstellen. Ob sich Privatpersonen finden, die künftig nicht unerhebliche Beträge vorfinanzieren oder für Flyer etc. aufwenden wollen und können, wird sich zeigen müssen. Insgesamt gehe ich davon aus, dass sich die Präsenz auf Veranstaltungen zunächst nicht großartig verändern wird – langfristig mag ich keine Perspektiven abgeben. Was diese Entscheidung für mich persönlich bedeutet, wird sich auch noch zeigen müssen – meiner Motivation sind insbesondere diverse Begleitumstände der Mitgliederversammlung nicht sonderlich zuträglich. Auch fraglich ist zunächst, inwieweit es das Portal gentoo.de künftig noch geben wird, wenn kein Verein zur Finanzierung des Betrieb des Servers bereit steht. Und: Es gibt sicherlich weitere Implikationen einer Vereinsauflösung, die sich erst im Nachhinein zeigen werden.

Schade.

Attention Gentoo Community,

In honor of Gentoo's 10th birthday, we are producing a new livedvd! We need YOU to test it on as many x86 and x86_64 machines as you can and post bugs. Please report your bugs. Feel free to entertain yourself and fellow Gentoo rock stars on our forum.

The livedvd-x86-x86_64 will work on x86 or x86_64. If your arch is x86 boot with the default gentoo. If your arch is amd64 boot with gentoo64. The livedvd-amd64 is for well, amd64 only.

UPDATE: Due to demand, we have moved the files onto the regular mirror infrastructure. Please select your archiecture to be redirected to a mirror: x86amd64

So, give us a hand by testing like crazy AND posting bugs and we'll have the greatest livedvd ever.

Thanks for your continued support,

The Gentoo-Ten Project

David Abbott contributed to the draft for this announcement.

Just sent this to the gentoo-dev@ mailinglist in the hope of getting some excellent propaganda material out of it:

[snip]
Hello everybody!

As Gentoo approaches its 10th birthday I've been wondering how and where it is used. We used to have some great stories from companies in the weekly newsletter, but that one has become very dormant a while ago.

I'd like to collect your success stories, endorsements and case studies so we can present to the rest of the world how using Gentoo makes your life easier and is totally awesome. If you don't want to have that information public I'll gladly anonymize it as long as I can be reasonably certain that you really exist. What is important is that you, if you actively use it in a commercial environment, write me whatever you think is important. Or you motivate someone you know to write it. Do your contribution to making things better :)

Everything from "I use it and it's great!" to a story starting on a rainy day in November 1885 is good. Don't be afraid, I'll work with you on making it into something readable.
And if you have specific criticism I'll take that too - maybe we can find an easy way to improve things. That is in your best interest too, so go ahead. Invest a few minutes of your time so we can save you more time!
[snip]

If you think you can contribute something just send me an email and I'll see what I can do.

Oh boy, it seems like I'm using pirated software on my HTC Magic. I actually never realised that market, Youtube and other Android applications were closed source. So much for all they hype about Android being open source.

When I bought my Android phone a few months back I had my reservations about using Google services, but OTOH I needed a proper PIM solution and since everybody talked about open source Android I bought an Android phone almost as soon as they were available here in .dk.

My initial impression was that it needed more work, however the market application saved the day. Also most PIM tools worked ok, though some had quirks. Furthermore I missed a proper email client and bluetooth tethering. So I ended up rooting the phone and installing Cyanogenmod, which I was more happy with. Though I'm still not highly impressed with Android. However it seems like Google just tried shut down Cyanogenmod:-( I just hope that they will work something out or I might soon be off to find another PIM solution that integrate mobile and laptop properly.

Well, I really didn’t think I’d be writing a post like this.

This is following on from, and indirectly in reply to, an operator who decided to call in on the Australia-Wide Night-Owl and Insomnia net which is held every Friday night at 3595kHz.

Now, this net is pretty laid back… all are welcome. There are however, some things that just are not done on radio. Just as much as they are not done here on the internet. One of them, is to air dirty laundry on air.

Without going into detail… we had an operator call in from Victoria (a VK3V.. call, standard licensee) who then proceeded to make allegations about the off-air activities of another operator (VK2.., advanced licensee), in particular, the allegations involved claims of abusive phone calls and threats. The VK2 station responded pointing out some other misdemeanors allegedly purpotrated by the VK3 station, before (thankfully) moving on with the net. Thank heavens both had the decency to leave it there rather than tie up net time arguing.

Now, undoubtedly, the vast majority (me included) are not privy to all the information. They may be completely false, or there may be some truth to them. That isn’t for me to decide and does not concirn me. What I object to, is the usage of the amateur bands, as the platform for this kind of debate. It does not help any of the participants, or bystanders at all… and perhaps what both sides should realise here, is that by airing this material on-air, they are opening themselves up for a potential defamation case.

It is no different to me for instance, making similar allegations on this site… I could be sued for defamation. This is one of the reasons why I did not reveal the callsigns, or even the names of the guilty culprits. In the past, I recorded the net and provided it as a podcast (and had I done this, the recording would have been up for the world to hear)… but sadly the computer that I used for this is not operational at the moment. In any case, those who were listening, know to whom I refer.

I would ask that all people, who make use of radiocommunications services, whether it be amateur, citizen’s band, marine, airband or any other service out there… please bear this in mind. Your personal squabbles have no place on the air, as I for one (and likely countless others) am not interested in hearing them.

Some people have asked me under what license I published my CodeSwarm video.
Usually I don't care, but to make it clear:

This video is now officially licensed under the Creative Commons Attribution-Share Alike license.
To make things more interesting I've published the CVS log and preprocessed XML used to render the animation. As they are just created by automated scripts I see no creative input worth a copyright, so they are released as-is.

The config file etc. are trivial to create, so just play around and see what happens. It's mostly self-explaining :)

That's all for now.

And yes, I am still here

Military service is really cool so far . Lets hope it will stay this way. Photos can be found here.

Anyway, recently I was assigned to a new project. I am supposed to setup an e-learning platform on a windows XP system.

Because I am really short of time I needed a quick and reliable solution.

So the first step was to download wampserver in order to have a fully operating hosting service on the current machine.

The most crusial issue was to choose the correct e-learning platform.  Having done my research for three days, I ended up using moodle .  It is really cool, with an extremely handy administrating panel, many many misc options about courses, categories, users etc. Pluse there is a huge users’ community all over the Inet.
I strongly suggested it if you need to setup up a similar platform in the future.

If you think that there is a better solution for my problem, please feel free to write it down

See you again soon!!

When I saw people do codeswarms of amarok and banshee and other small projects I thought "Hey, I can do that too!"

Now, after some work, and lots of CPU-cycles used, I have some results to show. And they are quite ... nice? awesome? For you to decide.

It all begins with pulling the data from cvs. Since I was in a hurry I did a naughty thing - do a checkout from anoncvs.gentoo.org, run cvs log > logfile
That is naughty because it causes a huge load on the server. Polite persons will create a local copy of the repository and run their own cvs server.

After ca. 50 minutes I had a logfile of 456926138 bytes, or roughly 450MB. This gets transformed into a list of events for codeswarm. The transformation itself is quite fast, but takes lots of RAM. In this case just over a gigabyte. So there I was with a 220MB XML dump to feed into the renderer ...

The first attempt died nicely because the default of using 1GB RAM cripples the render speed. Well, actually, my first first attempt died a horrible death because some [censored] in the Java world don't check what dynamic objects they load. And this means I had to run it all in a 32bit chroot. Grate phun. Grrr :D

Processing that amount of data looked quite reasonable for the first hour or so. Then it slowed down quite a bit, then even more. Increasing the memory helped a lot - I just let the JVM have 3.5G (it's a crippled 32bit process after all) and it effectively used ~2.5G. I think this shows the limitations of the current approach quite well.

Still it was too slow and too dense. The amount of files overwhelmed the screen so that it was looking very ... crowded

And that's a bit bland. I did notice that you can colour things, so obviously I split by categories. The colours are mostly random, but seem to work well. And in testing things I realized that the drawing time is negligible compared to the physics / preprocessing, so obviously I increased the resolution a bit. Hey, we live in the modern times of Full HD ... why compromise with legacy formats!

real    2876m48.775s
user    2897m44.342s
sys     10m28.831s

That's what "time" had to say about my little experiment. Almost 2 days of CPU-time at 2.6Ghz ... and that's with a naughty tweak. I reduced the amount of items because I realized that it was going to take Too Long (tm). So instead of representing each file ... why not represent each directory as one "thing"?

                    filename = filename.replace('files/','')
                    filename = filename.replace('/var/cvsroot/gentoo-x86/','')
                    filename = filename.replace('Attic','')
                    filename = "/".join(filename.split('/')[:-1])

That's all the mods I needed - strip the repo location at the front, fold files/ and Attic/ away and cut off the filename. Ends up with "category/package" instead, which for the purposes of Gentoo is a much more useful identifier. And the rendering time went down from one frame every 30 minutes worst case to about one frame every 3 minutes worst case. Y'know, the "unmodified" version is still processing after over 118 hours CPU time ... not that nice :)

One positive effect is that it reduces the input from over 200MB to just around 100MB.
Now after 48h CPU I have 13367 single PNGs with a total size of pretty exactly 5GB. Feeding those into mencoder generates 557.8 seconds of video with an average bitrate of 1737.2kB. The encoding takes 22 minutes walltime or 40 minutes CPU-time - in other words mencoder uses two threads properly. Good to know!

So just to warn you, the result of my little experiment is a high-bitrate 1080p video. It is about 116MB in size ...
Get it here
(US mirror)

Enjoy!

Here we go again. This time, we're going for the double sweepstakes as we're trying to stabilize both libxcb 1.4 and xorg-server 1.6!

For once, the server upgrade shouldn't be too hard and the server upgrade guide is remarkably slim. There's been no change in input, nor HAL, nor just about anything else for most users.

Only Intel users might have a few surprises with DRI2 and UXA. But at this point, they should be good surprises

However, the libxcb upgrade is going to cause more troubles for some users. If you are/were using x11-libs/libX11 with USE="xcb", then you might have to rebuild lots of packages. This is why we've taken such a long time to unmask and stabilize libxcb 1.4. But now, we've worked hard to write a proper libxcb upgrade guide, which users are definitely going to want to read.

I would say the libxcb guide is more important than the xorg-server upgrade guide.

Anyhow, right now, I calling out for help among our stable users. If you've always wanted to contribute to Gentoo but didn't know how, here's your chance.

1. Grab the stabilization list from bug #282290
2. Append it to your /etc/portage/package.keywords
3. run : emerge -DuNa world like always to update

Again, don't forget to read both upgrade guides before running the update, just so you don't start panicking when portage is unable to continue the upgrade.

As always, you're more than welcome to CC yourself in the stabilization tracker, but please DO NOT COMMENT IN THE TRACKER if you have issues, you'll just annoy everyone there. Just file a new bug and we'll look at it.

Don't forget that most X maintainers lurk in #gentoo-desktop on FreeNode if you have any questions.

That's all for today

I've just commited PEAR 1.8.1 to the tree (and will do 1.9.0 shortly to get us up to speed), but I wanted to let users know about a change in the way packages are installed.  Actually, it only affects the base packages.  Up until now, the PEAR-PEAR package in portage included all the necessary deps in one ebuild.  With this new version, I've split each package up into its own ebuild.

There's a couple of reasons for this, but the most important is that it will give us flexibility to deal with changes from upstream.  For example, with 1.8.1 and above, PEAR changed it's base XML dependency to XML_Util.  That one was already in the tree, and so the new pear base system relies on that.  If the other base ones change between versions, we can focus on that.

Another nice little change is that the base system ebuild now is just dev-php/pear.  So, "emerge pear" and you're done.

The new versions are all currently marked as unstable across the arches.  I would appreciate any and all feedback on the change.  I'm still a bit skeptical that this is the best approach, and a bit nervous at any fallout that may occur, so please file bug reports and let me know if you have any issues.  Thanks, all.

I'm posting this one hoping that someone can help me out, because it's one of the few remaining reasons I don't use Firefox as my main browser. I still use Seamonkey as my default, but the Javascript parsing is soo much slower than everything else, it'd be nice to switch.

Firefox has this find as you type feature, where if you hit / and then type in some words, it'll search and highlight it on the page. Great. Lots of browsers have that. Spanky. But, the problem with firefox begins with this little toolbar at the bottom of the browser that pops up as you are typing the text. It has a little dialog box titled Quick Find which fills in with whatever you were searching for. The main issue is that that toolbar will close itself automatically, and when it does, it steals focus from X back to Firefox.

That's particularly annoying for me because, in many instances, what will happen is I will search for something in Firefox using quick find, get what I'm looking for, and then switch to another program or window before the default timer has expired. If I start typing in that other window, when Firefox's bar closes, X focuses back on Firefox and part of my text goes in there instead. Kind of frustrating.

I've tinkered around with the about:config page and haven't found anything, and every now and then I check Google to see if I can find anyone else who has discovered a workaround, but I haven't found anything, so now I'm just trying to see if anyone else knows a solution.

I'd be happy with either disabling the toolbar completely or not having it go away, or whatever. The only part that bothers me is it stealing focus again.

For what it's worth, I'm on XFCE 4.4. No idea if it's an issue with other WMs.

To add a new USE flag, that's globally enabled for all Linux profiles, what's the minimum set of profiles that need to change? Deprecated profiles must be handled as well, for users that need to migrate still.

I ran into this today, while working on the USE=modules changes for linux-mod.eclass.

As an attempt to solve this, I munged up some GraphViz work to show profile inheritance, pictures as the end. Both sets have the trailing profiles "/desktop", "/developer", "/server" turned off for the 2008.0 and 10.0 releases, to cut down on the noise.

Graphs and script for download.

My answers as to which profiles:

• default-linux
• default/linux
• base
• embedded

Odd observations

• Several Prefix profiles (linux/{amd64,ia64,x86} link to 2008.0 profiles explicitly instead of the generic architecture)
• default/linux does not bring in base. Some profiles at a glance neglect this and might not have base brought in at all.
• "embedded" is all alone in the tree.

Thumbnail of one graph

Question for any skilled GraphViz users:

If all nodes in a given subgroup/cluster have an edge going to a single destination node, is there any way to get graphviz to replace them with a single fat edge from cluster to destination node?

So I recently was messing around with Opera 64bit on Gentoo and trying to get Java to work. The process was actually a lot easier than I expected. First I made sure I had the latest sun-jdk installed, which was dev-java/sun-jdk-1.6.0.16 in this case. Now to make it work with Opera I did the following:

cd /opt/sun-jdk-1.6.0.16/jre/lib/amd64/

Opera doesn’t seem to work by default like this, probably because it ignores the plugin and uses java directly. Because of this, you need to symlink the libjvm.so so Opera can find it:

ln -s server/libjvm.so .

Set opera to use /opt/sun-jdk-1.6.0.16/jre/lib/amd64/ as the java path and restart opera. All should be working now, you can check by following this test page: http://www.opera.com/media/applets/clock/

If anyone knows a more proper way of doing this, be sure to let me know

So it seems that Ciaran is upset again. Which seems to be quite normal. But he has some good advice, and I thought I'd share some with you too.

Let's start with an easy one. Descriptive error messages. This is good:

$ bash -x foobar.sh
bash: foobar.sh: No such file or directory

This is not:

  ... In program paludis -ip portage:                                                                                                
  ... When performing install action from command line:                                                                              
  ... When adding install target 'portage':                                                                                          
  ... When parsing user package dep spec 'portage':                                                                                  
  ... When parsing generic package dep spec 'portage':                                                                               
  ... When disambiguating package name 'portage':                                                                                    
  ... When finding all versions in some arbitrary order from packages matching */portage with filter all matches filtered through supports action install:                                                                                                                
  ... When loading entries for virtuals repository:                                                                                  
  ... When finding all versions sorted from packages matching sys-kernel/gentoo-sources with filter all matches filtered through supports action install:                                                                                                                 
  ... When generating metadata for ID 'sys-kernel/gentoo-sources-2.6.28-r5::gentoo':                                                 
  ... When running an ebuild command on 'sys-kernel/gentoo-sources-2.6.28-r5::gentoo':                                               
  ... When running ebuild command to generate metadata for 'sys-kernel/gentoo-sources-2.6.28-r5::gentoo':                            
  ... When running command 'sandbox /usr/libexec/paludis/ebuild.bash '/usr/portage/sys-kernel/gentoo-sources/gentoo-sources-2.6.28-r5.ebuild' metadata':                                                                                                                  
  ... In ebuild pipe command handler for 'LOG0qaglobal scope tr':                                                                    
  ... global scope tr                                                                                                                
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] (same context) global scope tr                                                              
paludis@1253390790: [QA e.child.message] In thread ID '19463':

That's about 1/35th of the whole output ... which is just drowning out any reasonable information. Complete output is just under 750 lines, so good luck finding any error. But I guess there's a reason for that.

Now something really neat:

  ... In program paludis -ip portage:                                                                                                
  ... When performing install action from command line:                                                                              
  ... When adding install target 'portage':                                                                                          
  ... When parsing user package dep spec 'portage':                                                                                  
  ... When parsing generic package dep spec 'portage':                                                                               
  ... When disambiguating package name 'portage':                                                                                    
  ... Package name 'portage' is ambiguous, assuming you meant 'sys-apps/portage' (candidates were 'sys-apps/portage', 'virtual/portage')  

Let me say this as clearly as possible. Never assume. If you try to guess what I might have meant to say you may do something I explicitly do not want to happen or even something which breaks things. If your app is unable to unambiguously parse my input quit.
Failure to do so will reduce in lots of tears and you falling on sharp objects. Multiple times.

And of course ...

Fetch error:
  * In program paludis -ip portage:
  * When performing install action from command line:
  * When executing install task:
  * When performing pretend actions:
  * When fetching 'dev-db/sqlite-3.6.18:3::gentoo':
  * Fetch error: Fetch of 'dev-db/sqlite-3.6.18:3::gentoo' failed

I don't think that means what you think it does. A pretend action that doesn't only pretend, but claims to fetch things? That better be a small oopsie in the explanation that doesn't, in any way, describe what actually happens.

Now, Ciaran. You can try to ridicule me through your blog. You can relabel comments as my name if you don't like them (it's your blog after all - even though that's exquisitely rude) and then deny you did it (we call that lying).
But if you have to do so do it directly. Don't try to be funny (you saw what that did in the Funtoo-uses-Internet-Explorer Situation).
Don't label any criticism as FUD (see "Ten Ways PMS Raped your Baby").

And if you fork PMS then do so. You have your own hosting already. Now all you need is your own mailinglist and please leave those that work on the official version alone. And don't command us around, we're not your slaves.

Think you can do that? That would be awesome. Thanks!

If you ever get bored enough (which, on an epic scale from fighting with the Spartans at the Thermopylae to reading the telephone book should be just around counting the grains of rice in a 50kg-bag) and start reading PMS, you might get a few of those "Wait a minute ..." thoughts that happen when things aren't quite right.

One of those is around page 26, where PMS defines that bash 3.0 or higher is to be used. Which actually means "it has to be bash 3.0 compatible, but may be any higher version". Or to be even more precise: Ebuilds are not allowed to use any features not in bash 3.0, but the execution environment may be any higher version if it is compatible. How could we have a straightforward text that doesn't need interpretation! The lack of flamewars! The lack of circular reasoning!

Now if you look around on your installed machines you may notice that:

• The oldest available ebuild is app-shells/bash-3.1_p17
• Portage depends on >=app-shells/bash-3.2
• Current stable on amd64 and x86 is bash4

Which means that you can't even use bash 3.0 anymore. And if you had an install that old you'd run into many upgrade issues - portage blocking bash, bash blocking portage, portage being unable to read EAPI1 ebuilds. A big mess with no clean upgrade path ... apart from injecting binpkgs and pretending that mess never happened.
From bash Changelog:

*bash-3.0-r12 (05 Jul 2005)
*bash-3.1 (10 Dec 2005)
*bash-3.2 (12 Oct 2006)
*bash-4.0 (21 Feb 2009)

So anyone not having bash 3.2 hasn't updated since May 2007. Seriously. That's when bash-3.2_p17 went stable. (October was just when the ebuild was added, the Changelogs are a bit tricky to parse)

So for all intensive purposes (and of course all intents and purposes) we can assume bash 3.2 installed anyway. Plus there's no older ebuild anyway, apart from the 3.1_p17 that is a leftover from a horrible upgrade path.
Even worse, for at least a year there has been a "contamination" of the tree in the form of bash 3.2 features like the "+=" assignment. Which means that some ebuilds won't work with 3.0 anyway. Extra bonus? Many eclasses use it, which means, in short, that you need 3.2 or higher. And it has been tolerated (maybe even encouraged) for such a long time that there's no way to undo that change now.

The obvious thing to do (fix PMS) has been ignored for quite some time. So I thought I'd send an email to the gentoo-pms mailinglist to get it sorted out. Guess what?
The amazing one-character patch was denied.

That's the best way to make PMS irrelevant - refuse to let it document reality.

Today I am pleased to introduce to all of you, Jorge Manuel Vicetto, Gentoo Developer, KDE Lead, and also a member of, Forums, Sparc, UserRel, DevRel, and in his spare time helps run the elections. Jorge is from Terceira island in the Azores.

If you would prefer to read the interview;
http://www.gentoo.org/proj/en/pr/20090918-jmbsvicetto-interview.xml

LINKS:
Gentoo KDE Project
http://www.gentoo.org/proj/en/desktop/kde/index.xml
Jorge's Boxes
http://dev.gentoo.org/~jmbsvicetto/boxes/
Get Involved
http://dev.gentoo.org/~jmbsvicetto/recruiting/default-recruiters.txt
Bugzilla
https://bugs.gentoo.org/

irc network freenode channel #linuxcrazy

Download

Searched high and low to find this silly little info. Finally found it here.

# define a pattern for the host url finding
# %% => % sign
# %0 => domain name + tld
# %1 => tld
# %2 => domain name without tld
# %3 => subdomain 1 name
# %4 => subdomain 2 name

# Set default vhost server location here
evhost.path-pattern = "/www/%0/htdocs"

# If we don't have a %3, default to htdocs
$HTTP["host"] =~ "^[^.]+\.[^.]+$" {
    evhost.path-pattern = "/www/%2.%1/htdocs/"
}

# If we don't have a %4, find the subdomain
$HTTP["host"] =~ "^[^.]+\.[^.]+\.[^.]+$" {
    evhost.path-pattern = "/www/%2.%1/subdomains/%3/"
}

# If we have a %4, find the subdomain2.subdomain1. If we have have %4+, use %4
# anyway. If you have 4+, write a explicit rule for doc-root.
$HTTP["host"] =~ "^.+\.[^.]+\.[^.]+\.[^.]+$" {
    evhost.path-pattern = "/www/%2.%1/subdomains/%4.%3/"
}

Now my only wishlist is to do something similar for var.logdir, but %[1-4] is only set up with evhost. So, do you do anything smarter than this for your server?

Earlier this month, I found myself embarking on a last-minute journey to a One Laptop per Child workshop in Port Harcourt, Nigeria. They are preparing for a 6000 XO laptop deployment in that region of the country. I attended to support the 5-day event, which was coordinated by Michael Tempel and Claudia Urrea.

The laptops were donated by Rusal/Alscom, and the deployment will be primarily run by Schlumberger’s Excellence in Educational Development division. SEED already uses its local staff to run some education projects in Nigeria (and many other countries).

We covered a range of activities including Write, Record and Paint, then spent a decent amount of time on TurtleArt and Scratch. We also handed out 75 sensors and ran some activities around the measurement of humidity, temperature and light.
The abilities of the attendees (the vast majority of which were first-time users) grew very nicely during the workshop.

The group consisted of about 80 teachers and 20 children. Both the size of the group and the wide age range presented some challenges. Usually, such workshops would be run only with the core teams behind the deployments (a smaller group overall), but the way that things are developing in Nigeria meant that it made more sense for us to work with a larger group at this time.

One of the biggest stumbling blocks of the workshop was working with the Scratch activity – while a very valuable activity, its integration with the Sugar desktop environment is damagingly minimal. For example, instead of using Sugar’s simplistic “Journal” storage system, it presents regular-looking Load and Save dialogs which proved very challenging for the new users. Seeing people struggle with interfaces that we see all over the desktop computing world really reminds you just how ground-breaking and significant the simplicity of Sugar is.

We also ran into some problems with the Paint activity regularly freezing the systems, unreliable saving/loading with USB disks, and some confusion relating to Measure’s sensors interface. We were kept on our feet at all times, meaning that I didn’t really have time to sit down and diagnose the issues in detail, but they should not be hard to reproduce at a later date. The issues were not significant enough to cause any major disruption.

I ran a few technical sessions with a few people who will become the basis of the technical team, plus some interested volunteers and teachers. As I’ve seen in other places, this was challenging because prior experience with Linux is low and internet access is scarce, so “look up this topic on the OLPC wiki” is not an answer that everyone is able to work with, and “run this command at the terminal” requires a decent amount of explanation. Nevertheless, the enthusiasm is overwhelming (as always) and I went away feeling confident that the core team is now comfortably in a position to get things moving and pass on knowledge to a wider group.

Our hours were cut short by the high security around us, meaning that we didn’t have much non-workshop time to interact with the attendees (or really see the country at all), but overall it was a lovely group to work with and I’m confident that we’re going to see great things come out of their efforts. I’m now back in Nepal until November.

Currently I use Evolution for my Calendar and Task management needs, but I sometimes seem heavily limited or annoyed at the lack of a feature. Sometimes I pondering writing my own suitable application but I’m lazy and would probably give up half way through. So instead, I’ll just blog about the things I wish Evolution did as it almost fits my entire requirement.

Evolution should show task due dates on the calendar – This is one problem that really annoys me. I think it would be great if I could visually see when a task is to be due on the calendar rather than staring at a list and figuring it out. Currently only ‘events’ can be shown on the calendar, and making an event for every task is a major pain and generally not worth it. Searching around reveals many people desire this feature, but it doesn’t look like any progress has been made in 7 years.

Powerful sorting abilities – I wish I could task a bunch of tasks and sort them by multiple attributes instead of just one. Currently I sort by date due, which works but isn’t that optimal. I mean, how important is that task? The ability to tag an important to a tag and sort by due date and important would be nifty. A quick glance shows that tasks can be given a priority and sorted strictly by that priority, but thats not quite what I would like. Right clicking a task I could be able to give it a priority quickly and have all the tasks ranked accordingly.

Subtasks – This is another feature I believe would be helpful. Subtasks would simplify my havoc of todo’s all over the place often related to a single project thats due or otherwise related. It seems this feature request is even older than the desire for tasks on the calendar appearing.

Colorization of tasks with start dates – This is a minor annoyance, but tasks that have a “start by” date do not have any visual indication that they are different from tasks without a start date. This would be alleviated some if sorting by priority actually worked but alas…

The above are some of the main quirks I have with Evolution currently, and I have yet to find a Calendar/task software that does better than Evolution. If I have missed anything obvious or someone has a recommendation I’d love to hear it. Some will probably say to separate my Calendar and Task needs, but I need that visual link to actually get stuff done on a reasonable time. Otherwise I start slacking off thinking I have time as a bunch of numbers don’t quite make the same link in my head as a graphic does.

I could not sleep last night (taking a 3 hour nap in the afternoon was probably a bad idea, in hindsight), and so I was up real late just bumming around on the internets looking for something to do. I eventually got the idea to go play around on my PS3 and see what I could find. I remembered that there was a new demo for a Star Wars game coming out pretty soon called Republic Heroes that I had gotten on the playstation store, so I checked it out.

The demo has two types of game play you can do -- either as a Clone Trooper or as a Jedi. The controls are different for each one, as well as the goals and, well, game play ... so it's kind of a two-in-one thing, which is original (to me, at least, I'm not a huge gamer) and makes it pretty fun.

I fired up the Clone Trooper one first and at first it just seemed like a run-of-the-mill FPS. What struck me as interesting though is that the controls were really, really simple. I quickly surmised that this games must be for younger kids, because of how easy it is to do stuff.

The demo level was fun, though I was more criticizing it and analyzing it as a potential purchase more than enjoying it, I'd say. Took a few minutes, and I was done, fine. That was interesting, next.

The Jedi route was more fun. Again, the controls are really simple -- you basically have block, jump, attack and force push as your options. Nothing hard to manage at all. And, you fight droids and just bust them up. Oh, one other thing I forgot to mention was that you have an AI character following you around -- in this case, Anakin's padawan whose name I forget right now. Asoka, I think. It's always nice to have a little help, in some games.

Anyway, the first run was pretty annoying as I was trying to figure out how to do things. I didn't think it was that impressive, until I clued in that this game was dumbed down a bit to make things easy for little kids, and once I realized that I stopped trying to do master force pushes and instead just relaxed a bit and started getting into it. Jumping, for example, from one spot to another is practically automated. You just have to kind of position your character in the right direction to go, and then nudge them that way when jumping up and forward. Not hard at all, thank goodness -- if there's one thing I hate about games, it's when you have to perform, what I call, Super Mario jumps. I absolutely suck at timed leaps, and if you've ever seen me play Super Mario Bros., you'd quickly see why -- I get really flustered and upset and crazy and mad and angry and totally, absolutely possessed with the game. I'm sure as an observer it must be pretty entertaining.

So, yah, I think I'll probably get the game when it comes out, which is Oct. 6th. That's gonna make me a bit backlogged on games I'm planning to get -- I still haven't picked up a copy of Overlord II. I can't wait for that one, either.

Along with the good, there's always gotta be some bad. The other week, I finally got a copy of the Star Wars game Clone Wars: Lightsaber Duels. I don't think I've ever seen a game so poorly done, which, for a Star Wars theme, is pretty incredible to see anything this crappy.

I had read plenty of reviews about it online, wondering if I wanted to get it or not ... and then I pretty much ignored them all and got it anyway, since it was only $20 (after it'd only been out a short time, which should have been a huge red flag in itself), and besides ... it was Star Wars! How bad could it be? Ugh.

I really only have two gripes with it, and I can honestly live with them just fine. The first is that the audio sync for the characters is way off. And I don't mean Steve-with-his-psycho-timing-OCD off, but like, a good two or three seconds out of sync with their lips. It's just embarassingly bad.

The game is really hard to control, too. It uses the Nunchuck for the Wii, which immediately makes me realize that it's going to be difficult to start with. I bought this so me and my little brother could play it (who is *really* into Star Wars ... as in, savant level), and he liked it. Well, we played something like six rounds and I won *once* (and I was really trying, too), so yah, he liked it.

I could not figure out the controls for the life of me, so we both just kind of sat there randomly swinging and contorting our bodies in an attempt to move our characters and beat the crap out of each other. I think I was more successful in almost knocking him in the head with the controller than I was with my in-game lightsaber.

Other than it being impossible to control and hard to follow who's talking at what point, the game is pretty cool. The graphics are nice. The game is a lot simpler than I thought it'd be -- it's just a dueling scenario, one on one. I was hoping there'd be a chance there was a bit more to it. Ah, well.

If the controls were a bit more refined, I think it'd be an awesome game to use the Wii to actually control a lightsaber and run around doing some damage. From my point of view though, anything using the Nunchuck controller is notoriously clumsy -- you punch with it and the game responds by just randomly moving in some other direction compared to the one you made. So, I'm not a big fan.

Last, but not least, and probably the third best Star Wars game I've ever played (Knights of the Old Republic 1 and 2 winning top spots), is The Force Unleashed. Man, I love this game.

Dinking around on Amazon last night, I familiarized myself with what other PS3 games are out there. I must be reading all the wrong site feeds, because I never have a freaking *clue* of all the stuff that is out there, or is coming out. Oh well, it makes for some nice surprises. What I didn't realize is coming out though, is a new version of the game (in November) called the Ultimate Sith Edition (you can barely see that in red at the top of the image).

It's the same game, obviously, as the standard edition, but it also has all the downloadable extra content that's been available on the playstation store, plus some other something or other I saw mentioned briefly on the Amazon site. Being the sucker that I am for marketing, Star Wars, and exclusive content, I'll be buying this one. I'll probably give my old one to my little brother to play, who happened to get a PS3 Slim for his 11th birthday. The punk. Nobody ever gave me a console for *my* birthday. Not that I'm bitter or anything. In fact, the only console I ever got as a gift was an Atari when I was like 6 years old for Christmas, and that was "for the family." Yah. The family learned quick that Steve is sucked into such consoles for better or for worse, so I never really had one as a permanent fixture in my life until the PS3. That should give away my age. Yay, generation gaps.

Anyway, I bought about half of the extra content online, and since the other half (about $20 worth at this point) is already included in the new game, it kinda makes sense to me to just buy a new one.

I love this game, though, it is so much fun. I fired it up last night so I could kick some booty. Oh, I might also mention, that this is one of the extremely few console games that I have managed to solve *all the way*. That is really rare for me, since I have a notoriously hard time with bosses, and usually give up when I can't win. Because the way the game is setup, though, it lets you revisit old levels and cumulatively gain more power each time, so that totally helped me. Anyway. I've written about the game before.

When I went to fire it up last night, it said there was an update for it (can I just interject for a moment, how awesome I think it is that consoles have Internet access? And can download updates for games, and content? The PS3 is how I thought a console should have been 15 years ago. Just saying.), and asked if I wanted to download it. Boo-yah! Of course. It was small (26 megs) for the 2.0 update.

While it was downloading, I went back to the intrawebs to try to figure out what was in there, but I wasn't having much luck, so I just waited for it to suck it down and then install (the agony!). Turns out it added support for trophies -- something I'm vaguely becoming interested in / aware of. I don't really care about showing them off to friends (in fact, recently, I cleared out my friends list completely for the PS3, only because I don't really care to chat online or play online games much ... so, no offense if you were on there, it's not you ... it's me), but I think the trophies are cool just to measure your list of accomplishments in-game and stuff.

It wouldn't let me earn the trophies though unless I started with a new set of save games (rant: why are there only four save game slots?), so I just made a new profile and moved them over there in case I ever wanted to load up my old game where I have all but like 5 of the holocrons in the whole game (including the black lightsaber, woo hoo!).

So I got to start over, and I immediately noticed there were some more changes to the game. For one, Darth Vader actually *moves* in that opening sequence. Wow. Thank goodness. In the old one, it was quite annoying as he would ... slowly .... move .... around ...... and .... yet ... be ... really .... powerful ... with ... the ... force. It just made starting a new game a real drag.

It could be my imagination -- I doubt it -- but I think I'm noticing a few other small tweaks and changes to the game as well. I haven't been playing it regularly in a while, but it sure seems a little different. Can't quite put my finger on it though. It seems to be moving at a slightly more clipped pace, and the Apprentice level seems a lot easier. I know the first boss (I forgot his name again ... General Kota?) was much, much easier than before. That, or I'm getting better at the game. Who knows. Either way, it's still an awesome game. And now I wanna go play it some more, dang it.

Hoo momma, I wasn't planning such a long post. Good times. There's a lot more Star Wars games I could write about, too. I have this strange goal of buying every single one that comes out. I'm not really passionate about that one, but I'm not too far away, either ... I can think of maybe two or three I don't have for the PS2 and two for the PC I don't have. I guess that's a lot. Like I said, they are usually a great hit, with a few random misses. Man, what I wouldn't give for a reboot of Tie Fighter. Best. Game. Evar.

I figured I’d blog this so I wouldn’t stop forgetting how to do this and possibly learn a “better” way to do this. I’m going to assume that vanilla x11 forwarding works outside the chroot as a starting point.

The process is relatively simple that I use. First I ssh into my server as a user using the -Y option like so:

ssh -Y ken@fooserver

Then I su to root:

su

Now comes the part that makes the forwarding work. We need to export the magic cookie that our current session is using so that the chroot can import it and use it. We do this like so:

xauth list > /tmp/X

This saves the magic cookie info into a file under /tmp so that we may access it later. Now its time to chroot in:

chroot /mnt/devchroot/ /bin/zsh

and I generally like to set my PS1 to remind me that it’s a chroot but is not necessary:

PS1="dev $PS1"

Now we need to import the magic cookie after chrooting in:

xauth add $(cat /tmp/X)

At this point x11 forwarding should now be working in the chroot. An easy way to test is to simply launch an xterm inside the chroot. xterm&

If the xterm appears everything is in working condition. At this point you should probably delete the /tmp/X file for security.