March 2015 - Pharo-dev - lists.pharo.org

Nautilus: Display custom subclassing template

by Torsten Bergmann

Hi, as we know in Smalltalk we use the concept of "messages" even to create new classes. Beside the regular #subclass:instanceVariableNames:classVariableNames:category: message there are other flavours and one even can implement such methods on his own easily. Just wondering: Is it easily possible already that one can define (for instance for a common superclass) that Nautilus displays the custom class creation message when a class is clicked: Something like: HTMLTag subclass: HTMLAnchorTag tagName: 'a' category: 'HTML-Markup' HTMLTag subclass: HTMLFormTag tagName: 'form' category: 'HTML-Markup' ... Animal subclass: Cat genome: 'Felis catus' category: 'Pets' I guess that would be highly useful for own custom DSL's and make modeling the real world in standard Pharo tools like the browser even more attractive. Any comments, use cases or code? Thanks T.

March 6, 2015

[pharo-project/pharo-core] a20530: 40538

by GitHub

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: a20530223df3edd3935aaa8dbe7e2088dafc62fa https://github.com/pharo-project/pharo-core/commit/a20530223df3edd3935aaa8d… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2015-03-06 (Fri, 06 Mar 2015) Changed paths: R Collections-Weak.package/WeakFinalizationList.class/README.md R Collections-Weak.package/WeakFinalizationList.class/class/class initialization/initialize.st R Collections-Weak.package/WeakFinalizationList.class/class/system startup/startUp_.st R Collections-Weak.package/WeakFinalizationList.class/class/vm capability test/hasNewFinalization.st R Collections-Weak.package/WeakFinalizationList.class/definition.st R Collections-Weak.package/WeakFinalizationList.class/instance/accessing/first.st R Collections-Weak.package/WeakFinalizationList.class/instance/accessing/swapWithNil.st R Collections-Weak.package/WeakFinalizerItem.class/README.md R Collections-Weak.package/WeakFinalizerItem.class/class/as yet unclassified/new.st R Collections-Weak.package/WeakFinalizerItem.class/definition.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/add_.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/clear.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/executor.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/list.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/list_.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/next.st R Collections-Weak.package/WeakFinalizerItem.class/instance/accessing/object.st R Collections-Weak.package/WeakFinalizerItem.class/instance/copying/copyWithList_.st R Collections-Weak.package/WeakFinalizerItem.class/instance/copying/postCopy.st R Collections-Weak.package/WeakFinalizerItem.class/instance/finalizing/finalizeValues.st R Collections-Weak.package/WeakFinalizerItem.class/instance/initialize-release/list_object_.st R Collections-Weak.package/WeakFinalizerItem.class/instance/initialize-release/list_object_executor_.st A Reflectivity.package/extension/LiteralVariable/instance/asWrapperFor_.st R ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script537.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script538.st R ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40537.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40538.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st R Slot.package/LiteralVariable.class/instance/wrapping/asWrapperFor_.st M Slot.package/OldClassBuilderAdapter.class/instance/adapted api/becomeCompact_.st M Slot.package/OldClassBuilderAdapter.class/instance/adapted api/becomeCompact_simplyAt_.st M Slot.package/OldClassBuilderAdapter.class/instance/adapted api/becomeUncompact_.st M Slot.package/PharoClassInstaller.class/instance/migrating/updateClass_to_.st R Slot.package/PharoClassInstaller.class/instance/migrating/updateInstancesFrom_to_.st A System-Finalization.package/WeakFinalizationList.class/README.md A System-Finalization.package/WeakFinalizationList.class/class/class initialization/initialize.st A System-Finalization.package/WeakFinalizationList.class/class/system startup/startUp_.st A System-Finalization.package/WeakFinalizationList.class/class/vm capability test/hasNewFinalization.st A System-Finalization.package/WeakFinalizationList.class/definition.st A System-Finalization.package/WeakFinalizationList.class/instance/accessing/first.st A System-Finalization.package/WeakFinalizationList.class/instance/accessing/swapWithNil.st A System-Finalization.package/WeakFinalizerItem.class/README.md A System-Finalization.package/WeakFinalizerItem.class/class/as yet unclassified/new.st A System-Finalization.package/WeakFinalizerItem.class/definition.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/add_.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/clear.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/executor.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/list.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/list_.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/next.st A System-Finalization.package/WeakFinalizerItem.class/instance/accessing/object.st A System-Finalization.package/WeakFinalizerItem.class/instance/copying/copyWithList_.st A System-Finalization.package/WeakFinalizerItem.class/instance/copying/postCopy.st A System-Finalization.package/WeakFinalizerItem.class/instance/finalizing/finalizeValues.st A System-Finalization.package/WeakFinalizerItem.class/instance/initialize-release/list_object_.st A System-Finalization.package/WeakFinalizerItem.class/instance/initialize-release/list_object_executor_.st M Traits.package/TBehavior.class/instance/private/becomeCompact.st M Traits.package/TBehavior.class/instance/private/becomeCompactSimplyAt_.st M Traits.package/TBehavior.class/instance/private/becomeUncompact.st M Traits.package/TClassDescription.class/instance/initialize-release/updateInstances_from_isMeta_.st Log Message: ----------- 40538 15054 Move Finalization Classes in Collections Weak to System-Finalization https://pharo.fogbugz.com/f/cases/15054 15073 Merge ClassInstaller>>updateInstancesFrom:to: and TClassDescription>>updateInstances:from: https://pharo.fogbugz.com/f/cases/15073 15056 Moving dependency Slot -> Reflectivity https://pharo.fogbugz.com/f/cases/15056 http://files.pharo.org/image/40/40538.zip

March 6, 2015

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/40538 Home: https://github.com/pharo-project/pharo-core

March 6, 2015

[ANN AthensSketch] A playground for drawings with Athens.

by Nicolai Hess

The main purpose of this packages is to ease the creation of simple drawings and provide a rich set of examples for Athens drawing API. -------------- Gofer new smalltalkhubUser: 'NicolaiHess' project: 'AthensSketch'; configuration; load. ConfigurationOfAthensSketch loadDevelopment. AthensSketchBrowser open. ----------------- This is a simple playground for Athens drawings. Just subclass AthensSketch and define your own sketch drawing in the #drawStepOn: method. It provides basic frame based animation (play/pause/stop). Open a player with ASketchExampleColors openPlayer', or a simple viewer morph with ASketchExampleColors openView (start and stop rendering from the morph menu) The AthensSketchBrowser lists all defined AthensSketch subclasses. (Basic examples from package AthensSketch and some more examples from package ASketchExamples). You can step through the list of examples, start and stop the drawing, or view and edit the drawing code. It is great that we have now a vector based drawing API. The (old) Canvas API is already great for pixel based drawings. A rich API and many good things if you discover it. And Athens is a addition that can increase our possibilities. There were some questions about Athens, what it is and what it is used for, maybe this helps. nicolai

March 6, 2015

files.pharo.org now cached close to you

by Marcus Denker

Hi, Yesterday we have set up a caching infrastructure for http://files.pharo.org This means that files that are requested multiple times from your location will be served from a server close to you. There are e.g. servers in Chile, Argentine, Brazil, Dallas, LA, Franfurt, Paris, Hongkong, Sydneyâ¦. This will cost us around $1-2 per day. This is not a lot but more that someone (e.g. me) could spend from their own pocket. As such, this is only possible due to the funds of the Pharo Association: http://association.pharo.org Thanks a lot to all the members! If you like this and want to support things like this, please consider joining the association! fMarcus

March 6, 2015

Re: [Pharo-dev] URL

by Sven Van Caekenberghe

OK, thanks! > On 06 Mar 2015, at 08:12, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > >> On 06 Mar 2015, at 08:09, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> >> Is https://ci.inria.fr/pharo/job/Pharo-3.0/lastSuccessfulBuild/api/xml?xpath=/… gone or not ? >> >> It is part of Zn tests and it started failing ... > > > I get that Service Temporarily Unavailable for the whole https://ci.inria.fr/pharo/ > > I have restarted it. > > now why does my watchdog does not tell me this? > > Marcus

March 6, 2015

Re: [Pharo-dev] URL

by Marcus Denker

> On 06 Mar 2015, at 08:09, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Is https://ci.inria.fr/pharo/job/Pharo-3.0/lastSuccessfulBuild/api/xml?xpath=/… gone or not ? > > It is part of Zn tests and it started failing ... I get that Service Temporarily Unavailable for the whole https://ci.inria.fr/pharo/ <https://ci.inria.fr/pharo/> I have restarted it. now why does my watchdog does not tell me this? Marcus

March 6, 2015

URL

by Sven Van Caekenberghe

Is https://ci.inria.fr/pharo/job/Pharo-3.0/lastSuccessfulBuild/api/xml?xpath=/… gone or not ? It is part of Zn tests and it started failing ...

March 6, 2015

Re: [Pharo-dev] [Pharo4] Image size now 23.2MB

by phil＠highoctane.be

Le 5 mars 2015 22:54, "Eliot Miranda" <eliot.miranda(a)gmail.com> a Ã©crit : > > > > On Thu, Mar 5, 2015 at 4:45 AM, phil(a)highoctane.be <phil(a)highoctane.be> wrote: >> >> On Thu, Mar 5, 2015 at 12:05 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> > Phil, >> > >> >> On 05 Mar 2015, at 11:44, phil(a)highoctane.be wrote: >> >> >> >> Images are starting slow, that's my experience. Here, a Pharo3 on >> >> Windows with quite a bunch of things in it takes six seconds to load >> >> on first launch and three after that. >> >> >> >> And that's on a i7 4770K clocked 3.85GHz with SSD drives. >> >> >> >> It takes less time to revive a VMWare VM :-( >> > >> > Maybe it is Windows ? Or certain extra stuff that you have in your image that does work at startup ? Because you should see sub second startup times. >> > >> > (This is on the smallest Digital Ocean instance, 1 virtual CPU, 512 Mb RAM, SSD) >> > >> > root@stfx:~/experiments/pharo4# curl get.pharo.org/40+vm | bash >> > % Total % Received % Xferd Average Speed Time Time Time Current >> > Dload Upload Total Spent Left Speed >> > 100 2885 100 2885 0 0 17974 0 --:--:-- --:--:-- --:--:-- 18031 >> > Downloading the latest 40 Image: >> > http://files.pharo.org/image/40/latest.zip >> > Pharo.image >> > Downloading the latest pharoVM: >> > http://files.pharo.org/vm/pharo/linux/stable.zip >> > pharo-vm/pharo >> > Downloading PharoV10.sources: >> > http://files.pharo.org/sources//PharoV10.sources.zip >> > Downloading PharoV20.sources: >> > http://files.pharo.org/sources//PharoV20.sources.zip >> > Downloading PharoV30.sources: >> > http://files.pharo.org/sources//PharoV30.sources.zip >> > Creating starter scripts pharo and pharo-ui >> > >> > root@stfx:~/experiments/pharo4# ./pharo Pharo.image printVersion >> > [version] 4.0 #40535 >> > >> > root@stfx:~/experiments/pharo4# ls -lah Pharo.image >> > -rw-rw-r-- 1 root root 22M Mar 4 14:51 Pharo.image >> > >> > root@stfx:~/experiments/pharo4# time ./pharo Pharo.image eval '100 factorial' >> > 93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000 >> > >> > real 0m0.386s >> > user 0m0.184s >> > sys 0m0.028s >> > >> > root@stfx:~/experiments/pharo4# time ./pharo Pharo.image eval '100 factorial' >> > 93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000 >> > >> > real 0m0.422s >> > user 0m0.192s >> > sys 0m0.032s >> > >> > root@stfx:~/experiments/pharo4# time ./pharo Pharo.image eval '100 factorial' >> > 93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000 >> > >> > real 0m0.863s >> > user 0m0.404s >> > sys 0m0.064s >> > >> > It is the latest (smaller) image, but that should not make much difference. >> >> On my CentOS Linux, headless tests are fast as well. >> >> Granted, my Windows image was super large. 300Megs or something. >> I cleaned the Monticello things with flush cache, which removed 41 megs. >> >> I can't test the CLI version on Windows, as I do get a window opening. >> >> There are a ton of windows and morphs open in there and I've run a >> couple of experiments. >> >> Now, the Linux image was large too. 200Megs or so. >> And the window showed immediately, then it took a second and a half or >> so to show the images back. >> There is a black background before. >> Maybe the system is processing its startUp list, unhibernating forms, >> I don't know what's going on but it takes that 1.5 secs. >> >> The image gets large because of Monticello caches, and TWM (Tiling >> Window Manager) keeping a handle on browsers etc over time. So, I >> cleaned the caches, closed TWM, gc'ed a time or two and then got the >> image back to 90 megs. >> >> Then the image opens in like 0.5 sec. It is hard to measure as what I >> want is the time between issuing the pharo-ui XYZ.image and the fact >> that I can actually see the UI. >> >> How would one do that? >> >> Sorry for the rant but generally speaking, the Pharo UI seems slower >> than the Squeak 4.5 ui. >> Or the EToys UI for that matter. >> I am using those for little educational programs and they feel faster. >> I'd like to know why. Both systems have morphic. Is it because of >> aliased fonts? Squeak 4.5 also has that. >> >> Is there any way to monitor what's going on during image startup? > > > I modifier the AndreasSystemProfiler in the Squeak code base at Cadence to allow profiling across snapshot; you see both save and startup profiles. That's not showing e.g. disc activity from VM reads, but it does help track down tike spent in the SMalltalk start-up. IIRC this is in te Saueak code base. But if you're interested I can dig it out. The changes are minor; to do with correctly offsetting delays across snapshot. Definitely! Phil > >> >> Phil >> >> >> >> >> >> > >> > Sven >> > >> > >> > -- >> > Sven Van Caekenberghe >> > Proudly supporting Pharo >> > http://pharo.org >> > http://association.pharo.org >> > http://consortium.pharo.org >> > >> > >> > >> > >> > > > > -- > best, > Eliot

March 6, 2015

Re: [Pharo-dev] [squeak-dev] New Cog VMs available

by Chris Muller

> I have one last > modification to do with free space handling on start-up in Spur (the current > VMs over-allocate free space), ... If its on start-up, does that mean I'll need to start and then immediately save my image for the free-space to be freed in the saved-state of the image? I assume not. :)

March 6, 2015