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Archive for the ‘Boosters’ Category

KDE Finance Apps Group Spring Sprint

April 24th, 2010 by

Yesterday started the first ever sprint of the KDE Finance Apps Group. We meet for three days and where could that better happen than in Frankfurt am Main, Germany, which is one of the larger places on the world where financial industry resides. As a matter of fact, the place where we meet is in the direct neighborhood of a quite impressive buildings of Deutsche Bank and german stock exchange 😉

The KDE Finance Apps Group is a group of people who have two commons: First, all of us are working on a KDE application and second the application has something to do with money. Like KMyMoney, which is a personal finance manager and Skrooge, a comparable new star on the KDE finance management sky, Assuma, a membership management software for associations and LemonPOS, a free point of sales system.

Quickly the idea came up to do a sprint to get each other to know and discuss the first concrete steps for the group. Thanks to KDE e.V. and Thomas Baumgart and his company SyroCon hosting us perfectly, that takes place now 🙂

Yesterday we had a great warm up with introductions, get to know each other and an impressive Skrooge introduction, and today we will start dive into more technical details. Great 🙂

Announce: openSUSE Beego

April 1st, 2010 by

the openSUSE distribution is the perfect base for specialized projects focusing on a certain area of application. Today, I am happy to announce the start of the openSUSE Beego project and ask you to join in and help to bring it to a success, because we rely on your support and enthusiasm.

What is openSUSE Beego about? Beego is the perfect customized linux distribution for beekeepers who want to manage their bees on a by today never unreached level. With openSUSE Beego we focus on key features like KHive, the management software for the beeyard, the bluetooth based Weightwatch to monitor the hive weigt and of course GHoney, which takes its users to a new level of honey blending by the latest Computer Aided Honey Blending Technology (CAHBT). The latest release of Queen on Rails, a web based bee queen marking and scheduling software is preinstalled and -configured.

All that relies on a perfectly customized kernel to meet the tough requirements of beekeeping. With solid real time capabilities the Beego kernel is able to process all incoming bees at the hives gate for up to 25,000 bee colonies, which is an outstanding high volume no other system ever reached. Both nectar and pollen of each incoming bee are measured and stored into MyBeeSQL, a tuned MySQL variant. Moreover the kernel needed a huge sting proof patch to give it the needed robustness. We could convince a well known openSUSE kernel developer to work on it, discussions on the kernel lists are ongoing under the subject “Sting Proof Patch”.

This project has a bright future for both openSUSE and the world of beekeeping. Again I like to ask for your help and contribution. Please spread the word, join our mailinglists, test and use openSUSE Beego.

That will make the honey even sweeter this year 🙂

openSUSE @ Chemnitzer Linux Tage 2010

March 18th, 2010 by

Last weekend, I was boosting at Chemnitzer Linux Tage where we ran openSUSE booth with Jan Weber, Kai-Uwe Behrmann and Sirko Kemter. Jan and Sirko already wrote reports at their blogs, so I’ll add just some personal thoughts and remarks.
It all started on Friday at the Greek restaurant. There was about ten of us, including all the guys mentioned above, invis-server people and others (sorry, I suck at remembering names). We had nice evening with some greek food (surprisingly), German beer and free ouzo refill. Yes free. Caused me troubles later…

On Saturday morning, we went to the TU where the event took place and finished the booth with table clothes I brought from Prague. I have to thank my girlfriend’s brother, who work in a restaurant, for providing these (I will rather not thank the restaurant – I doubt they are aware of their contribution). Both touchscreens were ready, running 11.2, one GNOME and the second one KDE 4.4.1 IIRC. We had also bunch of DVDs to hand out, some stickers and similar stuff.

The event officialy started at 9 o’clock. I was surprised that so many people showed up.  Many of them came to the our booth, either just to take the DVD or to ask for help with their openSUSE installation. It was a bit funny when somebody started to talk to me in German (which I have completely forgot since the secondary school), so I always had to ask for switching to English – about 95% of cases this was no problem, and in the rest of cases I simply Fwd:ed the people to Jan or Kai-Uwe.

I have talked to several people doing server solutions based on openSUSE and asked what’s their biggest issue with using openSUSE and what can we do better. There seemed to be a consensus that it’s packages dropped from the distribution without communicating it enough to the community. Perhaps we could think about some centralized place (mailinglist) where packages that are due to be dropped were communicated to the community, so interested people could step in and take over of their maintenance?

Late in the afternoon, I attended Frederic Weisbecker’s talk called Instrumentation with perf events and ftrace, which was AFAIK the only lecture held in English. Frederic gave an overview about recently included tracing subsystem in linux kernel and how can it be used to gather various information from the running system.

On Sunday, things were more quiet as not so many people as on Saturday came. It was quite funny when I talked with some guy from Fedora at our booth when internet connection at the touchscreens broke up. I suspect it was some problem at AP’s side, but he seemed to be quite amused by openSUSE’s “instability” nevertheless. Hmm…

I left at about 15:30 and headed back to Prague.

In general, I think it was nice event and our booth was quite successful, because we handed out about 800 DVDs and also managed to solve most of the problems people asked us to help them with (KDE 4.4 desktop appereance, non working internet connection and VirtualBox installation are just few of them). I was happy to meet new people as well as those I know from IRC or changelog entries.

I took few photos, which can be found at picasaweb.

openSUSE Boosters update: build.opensuse.org improvements

March 16th, 2010 by

In January, the Build Service squad of openSUSE Boosters worked to improve the openSUSE Build Service web client experience.

One focus was to make it easier for project maintainers to review and accept package submissions from contributors.  As explained in detail in the Collaboration article, when a contributor has made a local change to a package in her branch of a project, she then submits a request to merge the changes back to the original project (‘osc submitrequest’).  This request is received by the maintainers of the original project, who review it, and then submit it onwards towards openSUSE:Factory, for example, where it is reviewed again.  This distributes the workload of assembling a distribution by using the ‘many eyes’ typical of Free Software development in a structured way.

Until now, the list of requests waiting to be handled was very basic, only showing that a request was made regarding a particular package.  It was necessary to use the osc command line client to actually review and accept or reject requests.

Accepting a submitrequest from the web client

The Boosters’ sprint resulted in a fully-featured web frontend, where the reviewer can check if a submitted package actually builds, the differences in the request, accept or reject with comment, and also immediately submit the changes onward to openSUSE Factory.

Checking that submitrequests build

Showing the changes in a submitrequest

Showing the changes in a submitrequest

Another focus has been to make the overall process of preparing an openSUSE release easier.  The release manager’s job involves bringing together the output of many Build Service development projects, making sure that they all build, and that they have submitted their latest versions from the development projects to openSUSE:Factory.  This is the Build Service collaboration model.  If packages don’t build for a milestone release, or are not submitted, then the release manager can only take the previous version or choose to exclude a package from the release, which doesn’t help in getting the distribution tested.

Factory Status showing packages from GNOME:Factory

Factory Status showing progress from GNOME:Factory

The new project status page gives a project maintainer, for example the openSUSE release manager, a bird’s eye view of what needs to be done in his project: a list of packages that are currently failing; where there is an outstanding submit request, where there are unsubmitted changes in the development project, and where there is a newer version available upstream.  With quick links to projects and packages of interest, and a powerful set of filters, a project maintainer can quickly see where there are problems then drill down into the details.

Filtering problem packages by development project

A Green Rock

February 28th, 2010 by

Working as a manager sometimes has not so nice days, but tomorrow it will be a really great day. Novell HR has asked me to celebrate a team members ten years anniversary with Novell. That means fun and a present since ten years is a long time, yes, quite a long time for IT industry.

Henne Green RockThe guy who comes in to S.u.S.E, SuSE and Novell every day since exactly ten years now is Henne. You all know him. He is the guy who helps you with your multimedia problem, the man who finally dries your tears when your package does not build and the one who is first at breakfast after he kicked the last hackers to bed the night before. Of course looking fresh like a new born baby and with the energy of a power plant. Whenever there is work to be done in openSUSE, one can rely on Hennes advice and helping hand.

But that is not all. You might have realized that the openSUSE project is not really ten years old. But maybe it is? Might be that before it was officially set up a few years ago, it was already nested in Hennes heart? He is with openSUSE from day one and before, always following the idea of an open, community driven, vibrant and optimistic openSUSE project with space for opinions, ideas and argues. Over that he never looses focus on a practical compromise that works for all.

He gave very valueable direction in the Guiding Principle discussion as well as designing the devel project concept in the Build Service which makes external package maintainance possible. Today he gives important guidance as a member of the openSUSE Board and is of course one of the strong shoulders in the openSUSE Boosters Team.

I think Henne is one of the persons who make our community valueable and enjoyable. openSUSE is so much benefiting from people like him who take up responsibility and drive things forward.

Henne, in the name of Novell and I guess the whole openSUSE community I like to thank you for all your work so far. I am really looking forward to continuing to do crazy stuff with you. There is a lot more the openSUSE project can achieve over the next couple of decades, great that we have you on board as a green rock 🙂

Kraft Document Templating System

February 21st, 2010 by

One of the most important objectives for Kraft is to create business documents of perfect quality. The docs are an important face to the customer and represent the business, so best is just good enough. The old times where invoices got printed on a 24 needle printer in ascii mode should finally be gone 😉

Documents should represent the ‘coorperate identity’, which in small size firms probably comes down to printed stationary with a company logo and some other information on it. Kraft has to print  nicely on it. For that it is important that the layout can be configured at all and without compiling Kraft if the customer address should be printed fife millimeters higher for example.

Currently Kraft uses a document template written in RML for the layout. RML is a XML format which can be converted to PDF utilizing a python based command line tool which is called by Kraft. RML is a open source toolkit, quite powerful and mature. However, it does not solve all problems with flexible document creation and sometimes comes a bit unhandy. As a result our eyes are always open for alternatives.

Here are some requirements a template system must provide:

  • There is a document template in the file system. It can be changed by the user without recompiling Kraft. Kraft picks it up, fills the document values in and processes it to PDF. Other output formats are optional.
  • Layout: Areas where parts of the document are printed can be freely specified, ie. where the address, the date etc. is printed.
  • Graphical elements like lines, fixed text, boxes, colors and images can be placed everywhere.
  • The system knows at least different layouts for the first page, middle pages and the last page.
  • All pages have page header and footer.
  • Loops: Since an invoice for example has an unknown amount of items the system must be able to handle that, including clever space management with  pagebreaks. Nested loops are possible.
  • Maintain areas which must not be split, i.e. an invoice item should be printed completely on one page and not be split by a pagebreak.
  • Text faces, paragraph alignment, width, spacing and these kind of things must be configurable in the template.
  • Some variables are available such as a page counter.
  • Really great would be if the system provides carryover of calculations, like  on the top and bottom of each page the so far accumulated sum is printed.

Which free layouting and PDF generating system is able to provide that, preferably Qt/KDE based? Kugar was striving to solve it but when I tested it it did not work out.

Another idea is to use the ability of KWord to work with templates. If Kraft could read KWord templates, fill them and automatically generate a KWord doc from it, that would be a great solution, because in addition to automatic PDF generation documents could easily be exported as KWord docs and changed manually if needed. A great ‘template editor’ also would be available. This would in the direction of office suit integration that commercial Kraft competitors nowadays have.

I am not sure how far we are away from that. Something to investigate.

Hermes Twittering about openSUSE Factory

February 1st, 2010 by

I'm going to FOSDEM, the Free and Open Source Software Developers' European Meeting

Last week we updated Hermes on our production servers, they’re running a version now which will become a first Hermes release. I hope to get it packaged and released this week to present it on FOSDEM where I’ll give a talk about Hermes. Don’t miss it if you’re interested in this useful technology.

There went in a lot of technical improvement and bugfixes which one gets aware of if a system like Hermes runs in production for quite some time, such as missing indexes here and there which slow down the database and stuff like that. But that is another story.

What I actually wanted to talk about is the the fact that Hermes now is twittering now for you. You can follow it under the OBSHermes Twitter account. Hermes currently twitters about version updates of all packages in the openSUSE Factory project, so this is your tweet if you want to be at the bleading edge of Factory.

It is configurable for the administrator what actually is twittered. Is there other useful information around the openSUSE project which you would like to see twittered about? If so, please let me know.

openSUSE celebrates X-mas in Nürnberg

December 8th, 2009 by

The openSUSE team in Nürnberg invites everybody interested in Linux and in particular in openSUSE to join our Christmas party on Wednesday December 16 in the basement of our office building in Nürnberg. We’ll give some presentation about openSUSE 11.2 in action, GIMP and how to participate at our project. Beside of the presentations we have some machines where especially openSUSE  Education and the openSUSE Build Service will be shown but openSUSE 11.2  is available too, of course. More information
We hope to reach out to many local people in the Nürnberg area.

Usability Symposium

November 27th, 2009 by

On wednesday Will and me visited the Usability Symposium 2009 of the Network for User Oriented Software Design, a group which consists mainly of people from the Georg Simon Ohm University of Applied Sciences here in Nuernberg and people from local companies such as Astrum. It was the first symposium of this group and they gave three presentations about software usability.

One of the presentations were given by Evamaria Fuchs and Dr. Sigi Olschner, both former SUSE employees who worked in the usability lab. They presented about the development of the KDE KickOff menu that we shipped in version 10-something for KDE 3. Its successor became the KDE 4 default menu. Eva and Sigi presented how consequent usability work which goes along with the development effort can improve the quality measurable. They also gave a very good insight on free software and open source development in general, taking into account that most people from the audience did not have any experience with it. It was a very nice talk.

While Will was presenting KDE 4 to some interested people Sigi gave me some lessons on how to set up and use the eye tracking device that we have in the Boosters team now. We certainly need another lesson and much more knowledge about usability in general but that was a good start – thank you Sigi 🙂

Usability experts out there – our Eye Tracker is ready to be used by you for the good of free software! I am wondering when we will have the first session where we try to examine user experience of our software with that device.