April 2013 - Pharo-users - lists.pharo.org

CI: find user from FogBugz event
by Tommaso Dal Sasso April 24, 2013

April 24, 2013

Hi guys, I was looking at the Continuous Integration services code at http://smalltalkhub.com/#!/~Pharo/ci to extract information from the FogBugz tracker. I noticed that the FogBugzCase and FogBugzEvent classes do not contain the user that performed the action, except for some plain text inside the "description" field. Is there a way to extract the FogBugz user associated with an event? Thank you Tommaso Dal Sasso

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Call for ESUG 2013 presentations
by StÃ©phane Ducasse April 24, 2013

April 24, 2013

Please distribute as widely as possible :) 21st International Smalltalk Joint Conference - Call for Contributions Annecy, France from 9 to 13 September 2013 http://www.esug.org/conferences/2013/ This call includes: Developer Forum Smalltalk Technology Award International Workshop http://www.esug.org/Conferences/2013/InternationalWorkshop Student Volunteer http://www.esug.org/Conferences/2013/StudentVolunteers Camp Smalltalk 8 September 2013 ---------------------------------------------------------------------- For the past 21 years, the European Smalltalk User Group (ESUG) has organised the International Smalltalk Conference, a lively forum on cutting edge software technologies that attract people from both academia and industry for a whole week. The attendees are both engineers using Smalltalk in business and students and teachers using Smalltalk both for research and didactic purposes. As every year, this year's edition of the largest European Smalltalk event will include the regular Smalltalk developers conference with renowned invited speakers, a Smalltalk camp that proves fruitful for interactions and discussions. This year will be held the 9th edition of the Innovation Technology Awards where prizes will be awarded to authors of best pieces of Smalltalk-related projects and an international workshop on Smalltalk and dynamic languages (http://www.esug.org/Conferences/2013/InternationalWorkshop) You can support the ESUG conference in many different ways: * Sponsor the conference. New sponsoring packages are described at http://www.esug.org/supportesug/becomeasponsor/ * Submit a talk, a software or a paper to one of the events. See below. * Attend the conference. We'd like to beat the previous record of attendance (170 people at Amsterdam 2008)! * Students can get free registration and hosting if they enrol into the the Student Volunteers program. See below. Developers Forum: International Smalltalk Developers Conference ------------------------------------------------------------------------ We are looking for YOUR experience on using Smalltalk. You will have 30 min for presentations and 45 min for hand-ons tutorial. The list of topics for the normal talks and tutorials includes, but is not limited to the following: * XP practices, Development tools, Experience reports * Model driven development, Web development, Team management * Meta-Modeling, Security, New libraries & frameworks * Educational material, Embedded systems and robotics * SOA and Web services, Interaction with other programming languages Teaching Pearls --------------- New this year!!! We want two news types of sessions in addition to default talk and show us your projects sessions. - Show your business 10 min session (Get prepared!!) - Teaching pearls : we want some session on how to teach some design aspects. We want your tip and tricks to teach Smalltalk or OOP. We expect to have several 10 to 15 min sessions aggregated. Open Forum: starting with Smalltalk ------------------------------------------------------------------------ New this year!! The event will be held at IAE Savoie Mont-Blanc - University of Savoie. This is an opportunity for students and local professionals to discover Smalltalk. A room will be freely accessible and we would like to propose some talks and workshop for Smalltalk beginners. The list of topics includes, but is not limited to the following: - Why Smalltalk ? - Panorama of Smalltalk solutions - Getting started with Smalltalk - Success stories How to submit? -------------- Submissions due on 15st June 2013 Notification of acceptance will be on done on the fly. More information at http://www.esug.org/conferences/2013 Pay attention: the places are limited so do not wait till the last minute to apply. Prospective presenters should submit a request to Stephane.Ducasse(a)inria.fr AND USE THE following header [ESUG 2013 Developers]. Please follow the template below the email will be automatically processed! Subject: [ESUG 2013 Developers] + your name First Name: Last Name: Email where you can always be reached: Title: Type: Tutorial/Talk/Teaching Pearl/OpenForum Abstract: Bio: Any presentation not respecting this form will be discarded automatically International Workshop on Smalltalk Technologies ------------------------------------------------------------------------ http://www.esug.org/Conferences/2013/InternationalWorkshop Smalltalk is considered as a design pearl and as a beacon in the realm of programming languages and programming environments. We are proud to invite submissions to the International Workshop on Smalltalk Technologies which is held as part of the ESUG 2013 joint event. The goals of the workshop is to create a forum around advances or experience in Smalltalk. We welcome contributions on all aspects, theoretical as well as practical, of Smalltalk related topics such as - aspect-oriented programming, meta-programming, - frameworks, interaction with other languages, - implementation, - new dialects or languages implemented in Smalltalk, tools, - meta-modeling, design patterns, experience reports Technology Award Competition ------------------------------------------------------------------------ The top 3 teams with the most innovative software will receive, respectively, 500 Euros, 300 Euros and 200 Euros during an awards ceremony at the conference. Developers of any Smalltalk-based software are welcome to compete. More information at http://www.esug.org/conferences/2013/ Student Volunteer Program ------------------------------------------------------------------------ If you are a student wanting to attend ESUG, have you considered being a student volunteer? Student volunteers help keep the conference running smoothly; in return, they have free accommodations, while still having most of the time to enjoy the conference. More information at http://www.esug.org/conferences/2013 http://www.esug.org/Conferences/2013/StudentVolunteers We hope to see you there and have fun together.

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Creating Class Objects
by Mohammad Al Houssami (Alumni) April 24, 2013

April 24, 2013

Hello Eveyone, I just filed out a package did some changes and then filed in again. Im getting the error doesNotUnderstand: #CharacterToken and the name of the window says MessageNotUnderstood: receiver of " CharacterToken" is nil. What I have in my code is this characterToken CharacterToken new. characterToken is a variable I have. What is even more confusing is that I have the same thing for other things(endOfFileToken EndOfFileToken new.) but it doesn't complain to these but only this one even though Im doing them in the same exact way. Any ideas what the problem can be ? Thanks Mohammad

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[ANN] Pharo VM for Ubuntu updated
by Damien Cassou April 24, 2013

April 24, 2013

Installing the pharo vm under Ubuntu is just a matter of: sudo add-apt-repository ppa:cassou/pharo sudo apt-get update sudo apt-get install pharo-vm Recent changes: - latest VM packaged - separation between pharo-vm-core (few dependencies) and pharo-vm-desktop (depends on pharo-core + opengl + x11 + cairo) - no more warnings from the packaging systems - pharo man page - no more embedded libraries (pcre and libjpeg) (thanks to Esteban Lorenzano) Todo list: - make Pharo a graphical executable that lets user create and launch images (more on that in my next email) - see if Debian would be interested in including this package -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

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Finalization Documentation
by Sean P. DeNigris April 24, 2013

April 24, 2013

This might be a good addition to PBE2 ;) ----- Cheers, Sean -- View this message in context: http://forum.world.st/Finalization-Documentation-tp4683194.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Terminating a Process when an object dies
by Sean P. DeNigris April 24, 2013

April 24, 2013

If my object is using a process internally that should run only as long as the object is around, how do I do that? I searched the ml's for "Finalization", but couldn't quite make sense of the process. Thanks! ----- Cheers, Sean -- View this message in context: http://forum.world.st/Terminating-a-Process-when-an-object-dies-tp4683036.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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[ANN] Pharo VM for Ubuntu moved!
by Damien Cassou April 24, 2013

April 24, 2013

After a request from Esteban, I changed the Pharo VM PPA location from ppa:cassou/pharo to ppa:pharo/stable. Please issue the following commands to update your system: $ sudo rm -f /etc/apt/sources.list.d/cassou-emacs-quantal.list $ sudo add-apt-repository ppa:pharo/stable $ sudo apt-get update Sorry for the additional effort -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

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Zinc GET request with body in the request.
by Paul DeBruicker April 23, 2013

April 23, 2013

I'm making an elasticsearch client and they utilize JSON bodies in the GET requests to their server to search and do other things. An example of that is the second code block here: http://www.elasticsearch.org/guide/reference/api/search/ Is there a way to include a body with a GET request using Zinc? Making this: ZnClient>>#get:contents: "Execute an HTTP GET request on url with the contents in a body and return the response #contents." ^ self url: url; contents: object; get (unsurprisingly) doesn't work right away. In elasticsearch it is possible to make a URI request for searching but it is a more limited interface than including the JSON body. Thanks Paul

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Open Source OODB's
by Victor Stan April 23, 2013

April 23, 2013

Hi, Are there any open source OODB's out there? Alternatives to GemStone? I've briefly tried searching online, but I haven't found anything yet... Cheers, Victor Stan Schedule me: http://quicklyschedule.quicklyschedule.me/victor Add me to your address book - it's easy! http://contactmonkey.com/victor

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Package load times
by Chris April 22, 2013

April 22, 2013

I've recently upgraded a project to Pharo 2 which went relatively smoothly but thought I'd share my experience with loading times In Pharo 1.4, it used to take about 5-6 minutes to build everything from a base image but I noticed that if I ran the package loads inside a SystemChangeNotifier uniqueInstance doSilently: then the load time went down to like 2 minutes without any other side effects. In Pharo 2, it was taking a lot longer so I ran it through the equivalent SystemAnnouncer uniqueInstance suspendAllWhile: which did the job in terms of speed but all of the classes ended up unpackaged. After a little bit of digging I eventually found that by running MCWorkingCopy unregisterForNotifications before the package load, it came back to a sensible load time and everything seems to work again. My question is can this practice become part of a configuration load? I tried loading Iliad from the package cache just as an example and if you do a ConfigurationOfIliad load it takes 310 seconds, whereas MCWorkingCopy unregisterForNotifications. ConfigurationOfIliad load. MCWorkingCopy registerForNotifications. only takes 42 seconds. The main problem seems to be MCPackageManager>>#methodModified which sets the package modified state is taking about 60m/s to run each time because it is initializing an RPackage for every package in the system. Is there any way this can be cached better? Cheers Chris

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