January 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] OneClick on website's first page?

by Norbert Hartl

Am 30.01.2012 um 17:06 schrieb Janko MivÅ¡ek: > My intention was dragged into downloads of Shortcuts section and I'm > also blind to "marketing" images outside the central area, this is > probably a reason :) But it is only me? yes! Norbert

Jan. 30, 2012

Re: [Pharo-project] [squeak-dev] Re: [Smalltalk for small projects only?

by StÃ©phane Ducasse

On Jan 30, 2012, at 12:40 PM, Otto Behrens wrote: > Hi, > >> how to you deal with conflict due to the for example move of methods due to file out? > > If someone edited a method that I moved to another class git picks it > up and does not see a conflict, it includes the change on the new > class. If both of us changed the method and I moved it, then git picks > up a conflict and I have to edit the file. If the method was renamed > by me and edited by someone else, it does not pick up a conflict, it > sees it as a delete and modify conflict. > > I am sometimes quite amazed how it picks up what happened, but it > does; we have not had problems that are in the way. I think it has to > do with the nice object model git has, as well as the fact that it > does not store deltas, but objects indexed by hashes. ok I understand non textual handling would help for that. With svn of textualâ¦ this could be another story. > > Cheers > Otto >

Jan. 30, 2012

Re: [Pharo-project] pharo vision

by Nicolas Cellier

I think the best option with Xtreams (http://code.google.com/p/xtreams/ ) is to rewrite client code. This is why the designers have chosen a set of new selectors. If we think it's time to remove some cruft, but still have late client adopters, we could also write a wrapper providing old Stream API in Xtreams Something like: 'foo' reading withStreamAPI Then replace ReadStream/WriteStream with such factory... Of course, replicating the whole zoo of specialized selectors of current Stream library is not an option IMO. Nicolas 2012/1/30 Henrik Johansen <henrik.s.johansen(a)veloxit.no>: > > On Jan 30, 2012, at 9:24 14AM, StÃ©phane Ducasse wrote: > > <main.pdf> > > Nice! > > Some comments on the parts I'm most familiar with: > 3.2 > I agree, the nice parts in FS to me is the path manipulation API. > Going back to pure ANSI-streams as provided by FSFileStream is not really an > option. > Since it's a clean break from FileDirectory & friends though, it might be > the perfect time to introduce XTreams; -or it might be too much hassle to > have to change both parts in existing code at once. > > A good compromise would be to make it pluggable, using the existing > Standard/MultiByteFileStreams by default, but making XStreams pluggable (on > a use--by-use basis, so you can write new code with XStreams while > maintaining old code where you have only had time to rewrite the path > handling) > > 3.3 > "Using ephemerons we can then simplify the Announcement and make sure that > clients do not have to worry about weak or not registration." > You still have to worry about whether you want weak or strong registration. > "Do I have strict requirements for when the announcement should stop being > delivered in relation to subscriber lifespan?" is still a valid question. > What you don't have to worry about, is what _type_ of subscription (action > blocks or message sends), you are allowed to use when registering weakly. > > Ends with "In addition, " then nothing :) > > Cheers, > Henry

Jan. 30, 2012

Re: [Pharo-project] pharo vision

by Serge Stinckwich

On Mon, Jan 30, 2012 at 3:24 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > Thank you for this nice vision. I think "Language and Remote IDEs for small devices" and "robotics" could be merge in the same section about "embedded system", because they share more or less the same concerns: small kernel, C/C++ integration, headless system, reliable networking support, remote debugging, customizable real-time gc, ... Having the possibility of mixing several domain-specific languages is also quite interesting in robotics, see for the example the recent series of workshop i organize recently: http://www.doesnotunderstand.org/wikka.php?wakka=DSLRob11 I try to push Smalltalk use in robotics in several projects: 1) SqueakBot (http://wiki.laptop.org/go/Projects/SqueakBot) 2) PlayerST to control Player/Stage robotic simulation (http://www1.ifi.auf.org/mediawiki/index.php/Smalltalk_Player_Client) 3) ROSTalk to connect Smalltalk and ROS (https://github.com/SergeStinckwich/rostalk) but this is still difficult because most of the robotic stuff are written in C/C++ and also the lack of manpower ... It's easier at the moment to use Python or Lua for robots than Smalltalk. Look here: https://github.com/timn/roslua Regards, -- Serge Stinckwich UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam Matsuno Laboratory, Kyoto University, Japan (until 12/2011) http://www.mechatronics.me.kyoto-u.ac.jp/ Every DSL ends up being Smalltalk http://doesnotunderstand.org/

Jan. 30, 2012

Re: [Pharo-project] OneClick on website's first page?

by Sven Van Caekenberghe

Janko, On 30 Jan 2012, at 17:06, Janko MivÅ¡ek wrote: > S, Sven Van Caekenberghe piÅ¡e: >> >> On 30 Jan 2012, at 16:40, Janko MivÅ¡ek wrote: >> >>> This is a second level page while current trend is to have most useful >>> download for newcomers on a first page. >> >> ?? >> >> If I click on the 'Download Pharo' badge top right on the home page my download starts immediately. >> >> This is perfect. > > Ah, this is a link to OneClick! BTW: maybe a word 'OneClick' would be > good to add in the Download logo. > > My intention was dragged into downloads of Shortcuts section and I'm > also blind to "marketing" images outside the central area, this is > probably a reason :) But it is only me? > > Janko Well, actually it is pretty clear and contains all the right words: But I have to admit that even though it is big, somehow one overlooks it ;-) I am no UX expert, but maybe we could add a big, downwards pointing 'download arrow', like http://www.dropbox.com http://www.apple.com/itunes/ As long as it does not blink or flash. Sven

Jan. 30, 2012

Re: [Pharo-project] against paranoid programming [WAS: Re: pharo vision]

by Frank Shearar

On 30 January 2012 16:06, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > a little digression here: nobody knows that steps towards systems security is needed and always welcome, even more in this internet days... but I always found that by "security", most security systems are being constructed against the programmers, not against the possible violations. IMHO, things like "don't touch this class behavior", as a way to ensure system security is oppressive, and is against the paradigm enforced by smalltalk. > I don't think a programmer should be in a jail to program secure things... when we (pharoers) start this task, please, please, take this into account. > > yep... always someone mentions security, I run to see if my rights are being violated :P And you can't even start addressing security until you have a threat model against which to secure! frank > best, > Esteban > > El 30/01/2012, a las 12:45p.m., Igor Stasenko escribiÃ³: > >> a comment on Mariano's comment: >> "I am not sure if Pharo could be the best language for security....the fact >> of being able to play as god goes in contrary to security also. I >> would let all this >> security stuff for the javascript guys. >> " >> >> in fact, straightly opposite. >> think in terms that you want to develop/model/research a secure system >> on top of Pharo. >> And you're a God, of course, and you should be able to do that, and >> Pharo should help you investigating your problem space. >> Now, if pharo is underpowered, so you as well, and then you leave >> "security stuff for the javascript guys." >> :) >> >> -- >> Best regards, >> Igor Stasenko. >> > >

Jan. 30, 2012

Re: [Pharo-project] How to disable development tools on Pharo 1.3

by Mariano Martinez Peck

Some stuff I recover form Esteban and some old code: cleanUpEnvironment Smalltalk cleanUp: true. ScriptLoader new cleanUpForDesktopProduction. cleanUpForDesktopProduction "This is same as cleanUpForProduction, but it does not remove DejaVu fonts" SmalltalkImage checkChangesFileAvailability: false; checkSourcesFileAvailability: false. "No user-interrupt-into-debugger" UserInterruptHandler cmdDotEnabled: false. "turn off shift-click editing" StringMorph editableStringMorph: false. "No halos, etc." Morph cmdGesturesEnabled: false. "No user commands invokable via cmd-key combos in text editor" ParagraphEditor cmdKeysInText: false. Editor cmdKeysInText: false. And then if you have a morphic app: prepareMorph: aMorph World color: Color lightGray lighter lighter. World removeAllMorphs. World layoutPolicy: ProportionalLayout new. World addMorph: aMorph fullFrame: (LayoutFrame fractions: (0@0 corner: 1@1)). aMorph bounds: World bounds. aMorph sticky: true On Mon, Jan 30, 2012 at 5:16 PM, Noury Bouraqadi <bouraqadi(a)gmail.com>wrote: > I remember having seen some time in the past a menu that allows to shrink > the image and disable the world menu. > But, I can't retrieve any thing related. > I don't care about the menu per se. I'd be happy with a message to send to > some object that does the job. > > > Noury > -- > http://twitter.com/#!/NouryBouraqadi > http://www.kroobe.com/profile/noury > > > Afin de contribuer au respect de l'environnement, > merci de n'imprimer ce courriel qu'en cas de necessite > > Please consider the environment before you print > > > > > -- Mariano http://marianopeck.wordpress.com

Jan. 30, 2012

Re: [Pharo-project] NonInteractiveUIManager

by StÃ©phane Ducasse

Seems so because I do not understand anything. Stef On Jan 30, 2012, at 12:23 PM, Sven Van Caekenberghe wrote: > When making syntax errors in a startup script you get > > SubclassResponsibility: a NonInteractiveUIManager had the subclass responsibility to implement #syntaxErrorNotificationDefaultAction: > > Would it not be a better idea to just handle and print the syntax error ? > > Sven

Jan. 30, 2012

[Pharo-project] How to disable development tools on Pharo 1.3

by Noury Bouraqadi

I remember having seen some time in the past a menu that allows to shrink the image and disable the world menu. But, I can't retrieve any thing related. I don't care about the menu per se. I'd be happy with a message to send to some object that does the job. Noury -- http://twitter.com/#!/NouryBouraqadi http://www.kroobe.com/profile/noury Afin de contribuer au respect de l'environnement, merci de n'imprimer ce courriel qu'en cas de necessite Please consider the environment before you print

Jan. 30, 2012

[Pharo-project] Headless HTTPS Usage on Linux

by Sven Van Caekenberghe

I have the impression that there is still some confusion around using Zodiac to do HTTPS access. The easiest way to try this for yourself is to download the customized one-click image: http://dl.dropbox.com/u/16235440/Pharo-1.3-Zodiac-OneClick.app.zip (~25Mb) Now, next is some code that shows how do a command line google search using HTTPS on Linux. Let's build a curl like tool that can do this: $ ./query-google.sh 'Pharo Smalltalk' | less [â¦] $ cat query-google.sh #!/bin/bash script_home=$(dirname $0) script_home=$(cd $script_home && pwd) image=$script_home/experimental.image script=$script_home/query-google.st args=$* vm=$script_home/bin/CogVM options="-vm-display-null -vm-sound-null" #echo $vm $options $image $script $args $vm $options $image $script $args $ cat query-google.st | result | result := ZnClient new systemPolicy; beOneShot; https; host: 'encrypted.google.com'; addPath: 'search'; queryAt: 'q' put: Smalltalk commandLine arguments first; get. FileStream stdout nextPutAll: result. Smalltalk quitPrimitive. $ cat build.st "Script to update a stock Pharo 1.3 image with application specific code" Gofer new squeaksource: 'ZincHTTPComponents'; package: 'Zinc-HTTP'; package: 'Zinc-AWS'; load. Gofer new squeaksource: 'Zodiac'; package: 'Zodiac-Core'; load. Gofer new squeaksource: 'ZincHTTPComponents'; package: 'Zinc-Zodiac'; load. SmalltalkImage current saveAs: 'experimental'; snapshot: false andQuit: true. Using this VM http://gforge.inria.fr/frs/download.php/29042/CogVM-Unix-13307.zip Add SqueakSSL.so next to your VM $ ls -la bin total 1480 drwxr-xr-x 2 ubuntu ubuntu 4096 2012-01-30 15:32 . drwxr-xr-x 4 ubuntu ubuntu 4096 2012-01-30 15:41 .. -rwxr-xr-x 1 ubuntu ubuntu 1148103 2011-08-31 12:51 CogVM -rwxr-xr-x 1 ubuntu ubuntu 63490 2011-08-31 12:51 libB3DAcceleratorPlugin.so -rwxr-xr-x 1 ubuntu ubuntu 28829 2011-08-31 12:51 libFT2Plugin.so -rwxr-xr-x 1 ubuntu ubuntu 29708 2011-08-31 12:51 libSqueakFFIPrims.so -rwxr-xr-x 1 ubuntu ubuntu 67498 2012-01-30 15:31 SqueakSSL.so -rwxr-xr-x 1 ubuntu ubuntu 10765 2011-08-31 12:51 vm-display-null -rwxr-xr-x 1 ubuntu ubuntu 109674 2011-08-31 12:51 vm-display-X11 -rwxr-xr-x 1 ubuntu ubuntu 23322 2011-08-31 12:51 vm-sound-ALSA -rwxr-xr-x 1 ubuntu ubuntu 6221 2011-08-31 12:51 vm-sound-null And everything should be fine. Sven

Jan. 30, 2012