Perl devroom @FOSDEM2012: photos April 27, 2012
Posted by claudio in Uncategorized.Tags: devroom, fosdem, FOSDEM2012, foss, Free Software, ironman, Perl, photography
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Finally I found the time to “develop” my Perl dev-room @ FOSDEM 2012 pictures (convert from camera RAW files to jpg). It was a very nice event. If you missed the Perl dev-room in the past year, you should really visit us in 2013. Or even better, give a talk.
In the pictures above you see Nicholas talking about Moose. He forgot his mac-VGA adaptor (ahum) so he ended up writing code on the blackboard (“the loudest syntax checker on earth”). Marc mixed some Haskell in his talk while Flavio showed some Javascript-powered Perl. Clément presented a Perl SSO solution and Erik showed us a open source accounting solution. Stefan introduced the PerlCommerce platform, while Ævar (a famous guy being the most mentioned name in Programming Perl, 4th ed!) talks about git-deploy (or rather git-undeploy 
). Marius explained the marriage of Moose and MemCached.
As the organizer of the Perl dev-room, I had to attend to a few things during the talks. My excuses for not taking pictures of Mark’s and Guillaume’s talk (I was able to attend most of it, though). Sadly, I didn’t had the time to photograph our fabulous Perl stand (although I have some pictures from last year): Wendy, Liz, Eric and all the other volunteers did a great job.
Thank you for a successful Perl FOSDEM presence.
The Program was as follows:
| Welcome to the Perl devroom | Claudio Ramirez | AW1.121 | 09:00-09:05 |
| Moose Primer | Nicholas Perez | AW1.121 | 09:05-09:25 |
| Advanced Moose Techniques | Nicholas Perez | AW1.121 | 09:35-09:55 |
| Perlude: a taste of Haskell in Perl | Marc Chantreux | AW1.121 | 10:05-10:45 |
| Perlito | Flávio Glock | AW1.121 | 11:05-11:45 |
| The LemonLDAP::NG Project | Clément Oudot | AW1.121 | 11:55-12:15 |
| LedgerSMB: Open source accounting running on Perl | Erik Huelsmann | AW1.121 | 12:25-12:45 |
| Modern PerlCommerce | Stefan Hornburg | AW1.121 | 13:25-14:05 |
| Rapid real-world testing using git-deploy | Ævar Arnfjörð Bjarmason | AW1.121 | 14:15-14:35 |
| POSIX::1003 | Mark Overmeer | AW1.121 | 15:00-15:40 |
| The FusionInventory Project | Guillaume Rousse | AW1.121 | 15:50-16:10 |
| Using Moose objects with Memcached | Marius Olsthoorn | AW1.121 | 16:20-16:40 |
Perl@FOSDEM and some photographic impressions February 8, 2011
Posted by claudio in Uncategorized.Tags: belgium, fosdem, fosdem 2011, foss, Free Software, Modern Perl, Padre, Perl, perl::staff
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All right. FOSDEM was –as always– great. 4 to 5000 Free and Open Source people on the same event has to rock. While I attended many talks about different technologies (Devops aka “System Engineering meets development”, Monitoring, Go Programming language, …), I focussed mainly on the Perl activities (pun intended).
Following Gabor’s initiative (this guy runs on Duracell batteries), last year (2010) we set up the first FOSDEM Perl booth: one table, some volunteers, many visitors and great reactions. This year (2011) everything was even better. We had a big booth at the main hall, attributes (a giant Camel (!) and probably the biggest Perl book collection in the world (!)), books to sell, a packed developer’s room on Sunday, a Perl dinner and many volunteers. There were at any time several people at the booth and sometimes even too many . With so many volunteers it was possible to attend whatever session you wanted and also participate on the Perl developers’ room.
Here follow some pictures I took with some comments:
David Leadbeater’s Tracing Perl with DTrace/SystemTap
Liz and Wendy were to crazy nice enough to bring their giant camel and the biggest Perl book collection in the world. Both attributed really attracted visitors.
We had several books to sell… but not enough. We were sold out of chromatic’s Modern Perl halfway the first day (20 books!) and dams’s Perl Moderne (not the same book) was almost sold out as well!
Wendy and dams (from Dancer and “Perl Moderne” fame).
Although we didn’t have Automating System Administration with Perl at the booth, several people passed and showed us proudly their copy bought at the O’Reilly stand.
The main booth hall.
Those guys had something to celebrate: a new Debian stable was born.
Our perl-friendly neighbours…
We had several self-confessed Perl people: everyone like camels
No pun intended (the text reads “Whinging Bastard”,
DevOps? – More than Marketing by James Turnbull) .
Spike Morelli’s I’m Going M.A.D..
We had 13 people attending the Perl dinner! From left to right: Zeno, Bart, Gabor, Liz, Wendy, Dirk and Balint (the rest arrived later).
Mark Overmeers’s Perl data structures.
David Leadbeater’s Tracing Perl with DTrace/SystemTap: very interesting for a Solaris guy like me.
Introduction to writing readable and maintainable Perl by Alex Balhatchet.
Padre hackers Zeno and Gabor (Padre, the Perl IDE).
Paulo Castro (Packaging Perl and it’s deps…) took us to the Dark Side…
The image integration facilities of WordPress.com are pretty poor. If it wasn’t for some command line Perl foo, I would have given up posting this message. There is no way I would have gone through if I had to click 10 times for each picture…
Build Padre svn easily with perlbrew and cpanm December 10, 2010
Posted by claudio in Uncategorized.Tags: cpanm, Free Software, GNU/Linux, Padre, Perl, perlbrew, UNIX
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Update: March 12, 2011
Because of the fast pace of the development of Padre, the/a Perl IDE, it’s may be nice to run a bleeding edge version. Or even better, as Padre itself is written in Perl, you may like to have a look at the sources and maybe contribute some code or help with the translations.
Follow this howto to build the latest Padre from source with perlbrew and cpanm. This way, you’ll get started in no time and you won’t even touch your system Perl installation (cleanup is just a “rm -rf” away…).
1. Install perlbrew and cpanm. You can follow my howtos here: perlbrew (important: compile perl with thread support!), cpanm.
2. Install subversion (to check out the code), the compilations utils (gcc, g++, make) and the gtk2 header files. On Debian/Ubuntu:
$ sudo apt-get install subversion build-essential libgtk2.0-dev
An interesting -but not required- shortcut is to install the Padre release in your distribution to get binary dependencies: $ sudo apt-get install padre
3. Checkout Padre from svn (I chose to install the sources under ~/Code/Padre, adapt accordingly to your standards):
$ mkdir -p ~/Code/Padre && cd ~/Code/Padre
$ svn co http://svn.perlide.org/padre/trunk
4. Install the modules that Padre needs before building the IDE.
$ cpanm Parse::Yapp Module::Install Locale::Msgfmt Alien::wxWidgets Wx
[... lots of output ...]
5. Build Padre.
$ cd ~/Code/Padre/trunk/Padre
Install the dependencies (thx to Perigrin for the simplified method):
$ cpanm --installdeps .
[... lots of output ...]
$ perl Makefile.PL
[... some output ...]
As said, development is happening fast on Padre and new releases of (external) CPAN modules are required often (some even updated by the authors in order to provide the functionality Padre needs). If a new version of a module is needed that is not yet on your cpan mirror, run cpanm (–mirror) again with a more up-to-date mirror. Run “perl Makefile.PL” again afterwards.
$ make
[... lots of output ...]
$ make test
[... lots of output ...]
6. Install padre (in the active perlbrew dependant directory) or just run the development version without installing it (including all changes to the code even after installation):
$ make install
[... lots of output ...]
or
$ ./dev.pl -a
Here it is:
EDIT: ZenoG’s article is a good followup post giving an step-by-step description of bug fixing is Padre.
App::cpanminus: zero-conf CPAN client December 10, 2010
Posted by claudio in Uncategorized.Tags: cpan, cpanm, Free Software, GNU/Linux, Perl, perlbrew, UNIX
2 comments
App::cpanminus (cpanm) is an other great example of programs inscribed in the Modern Perl philosophy. From the CPAN page of the program:
cpanminus is a script to get, unpack, build and install modules from CPAN.
Why? It’s dependency free, requires zero configuration, and stands alone. When running, it requires only 10MB of RAM.
Zero configuration sounds excellent considering the rather steep learning of the (great!) CPAN tools (the cpan command line utility CPAN.pm and CPANPLUS) for new Perl users.
How does it work? Let try a big module with a lot of dependencies and C++ compiling activity. Install the application through cpan if configured (or with one of the standalone installations options):
$ cpan App::cpanminus
[...]
$ cpanm Moose
--> Working on Moose
Fetching http://search.cpan.org/CPAN/authors/id/D/DR/DROLSKY/Moose-1.21.tar.gz ... OK
Configuring Moose-1.21 ... OK
==> Found dependencies: Try::Tiny, Package::DeprecationManager, Test::Requires, Class::MOP, Sub::Exporter, Test::Fatal, Sub::Name, Data::OptList, Params::Util, List::MoreUtils, Task::Weaken
--> Working on Try::Tiny
[...]
Building and testing Moose-1.21 ... OK
Successfully installed Moose-1.21
$ perl -MMoose -e1
No errors. The modules (and their dependencies) installed just fine. Wow.
Finally some sense on RMS – de Icaza September 30, 2009
Posted by claudio in Uncategorized.Tags: Free Software, Microsoft, Miguel de Icaza, RMS
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The best thing I have read on the subject: background and no FUD. Guess what, RMS is right (and guess again: he’s not talking about Mono).
Firefox 3 Download Day tomorrow^Wtoday June 16, 2008
Posted by claudio in Uncategorized.Tags: firefox, Free Software, open source
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Don’t forget to download firefox tomorrow today (June 17, 2008; release of Firefox 3). I cite from the “Firefox Download day site”:
“Sounds like a good deal, right? All you have to do is get Firefox 3 during Download Day to help set the record for most software downloads in 24 hours – it’s that easy. We’re not asking you to swallow a sword or to balance 30 spoons on your face, although that would be kind of awesome.”
