July 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] Configuration Browser is a mastery

by Lukas Renggli

I played earlier with the "Configuration Browser" and wondered what it was all about ... After the following question on StackOverflow I played with it again: http://stackoverflow.com/questions/6880596/how-to-browse-metacello-reposito… Maybe it should be removed from Pharo 1.3, if the following issues cannot be fixed easily? 1. The windows is empty, refreshing leaves the window empty. This seems to be because <http://www.squeaksource.com/MetaRepoForPharo13> is an empty repository. It would probably be better to point it to <http://www.squeaksource.com/MetacelloRepository> which seems to be the repository with most configurations; or fill the other repository with some tested configurations? 2. The listing lists many packages that are clearly not configurations, e.g. Bogus-cwp.18, Illiad-Core0.1, ... Loading them opens a debugger. 3. The tool doesn't show me what configurations are already loaded (ok, that might not be implemented yet, but would be a key feature and easy to find out). 4. MetacelloConfigurationBrowser>>#refresh and MetacelloConfigurationBrowser>>#loadConfigurationWithLatest: duplicates the manual parsing of package filenames. This is bound to break. Why not use Gofer? Cheers, Lukas -- Lukas Renggli www.lukas-renggli.ch

July 30, 2011

Re: [Pharo-project] CameraPlugin for VM

by StÃ©phane Ducasse

It depends on a dependencies also at the vm level and how they can crip in the system. Stef On Jul 30, 2011, at 12:09 AM, Hilaire Fernandes wrote: > But anyway, I guess you don't want to include it in PharoCore, so the > license issue is not the concern of PharoTeam, right? > In the other hand, if a third party want to use it, it will have to find > its own way to comply with the license. > > Hilaire > > Le 29/07/2011 15:20, Marcus Denker a Ã©crit : >> >> On Jul 29, 2011, at 3:16 PM, Bernat Romagosa wrote: >> >>> Sure, I attach it here. >>> >>> It looks like a standard MIT license with just these extra conditions added. >>> >> And with > > -- > Education 0.2 -- http://blog.ofset.org/hilaire > >

July 30, 2011

Re: [Pharo-project] [Vm-dev] CameraPlugin for VM

by David T. Lewis

On Fri, Jul 29, 2011 at 10:18:51AM +0200, Torsten Bergmann wrote: > > Hi VM developers (CC Squeak and Pharo list), > > anyone know about the state of integrating > the camera plugin from scratch into the Squeak VM sources. > Last discussion I know of is at: > > http://forum.world.st/Camera-plugins-was-Re-Video-Media-in-Squeak-td2020502… > > Any news on this or any progress? Are there plans to integrate > the plugin into Cog as well? This issue has been entered as Mantis 7654: "Add Scratch plugins CameraPlugin and ScratchPlugin to standard VMs". <http://bugs.squeak.org/view.php?id=7654> MIT licensed sources for CameraPlugin, provided by the Scratch development team last year (hence not necessarily fully up to date), are attached to the Mantis report. My understanding is that the ScratchPlugin is available under the same terms (MIT licensed), although I do not have access to the source at this time. Dave

July 29, 2011

Re: [Pharo-project] CameraPlugin for VM

by Hilaire Fernandes

But anyway, I guess you don't want to include it in PharoCore, so the license issue is not the concern of PharoTeam, right? In the other hand, if a third party want to use it, it will have to find its own way to comply with the license. Hilaire Le 29/07/2011 15:20, Marcus Denker a Ã©crit : > > On Jul 29, 2011, at 3:16 PM, Bernat Romagosa wrote: > >> Sure, I attach it here. >> >> It looks like a standard MIT license with just these extra conditions added. >> > And with -- Education 0.2 -- http://blog.ofset.org/hilaire

July 29, 2011

Re: [Pharo-project] CameraPlugin for VM

by StÃ©phane Ducasse

If giving a credit in the class comment is enough then this is something different. We do not have to have a mixture of slighty different but not so quite licenses in Pharo. stef On Jul 29, 2011, at 4:59 PM, Torsten Bergmann wrote: > Stef wrote: >> or you should ask a dual licensing. I'm curious to see if this code will >flow into squeak. > > Did you read the short license discussion at > > http://forum.world.st/Camera-plugins-was-Re-Video-Media-in-Squeak-td2020502… > > and especially the permission given: > > http://tracker.squeakland.org/secure/attachment/13870/ScratchPlugin-Permiss… > > Dont know if this is enough... > > Bye > T. > -- > Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir > belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de >

July 29, 2011

Re: [Pharo-project] CameraPlugin for VM

by StÃ©phane Ducasse

Yes ask them. Dual licensing is always possible. Stef On Jul 29, 2011, at 4:48 PM, Bernat Romagosa wrote: > Couldn't we talk with the Scratch team and see if we can re-license it? > > 2011/7/29 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > or you should ask a dual licensing. I'm curious to see if this code will flow into squeak. > > Stef > > > On Jul 29, 2011, at 3:16 PM, Bernat Romagosa wrote: > > > Sure, I attach it here. > > > > It looks like a standard MIT license with just these extra conditions added. > > > > 2011/7/29 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > > Yet another license syndrom. > > > > The Scratch source code license allows you to distribute derivative works based on the Scratch source code for non-commercial uses subject to the following restrictions: > > â¢ you cannot use the word "Scratch" to refer to derivative works (except in the phrase "Based on Scratch from the MIT Media Laboratory"), > > â¢ you cannot use the Scratch logo or the official (copyrighted) Scratch cat in derivative works, > > â¢ you cannot implement the ability to upload projects to any MIT Scratch website (currently, http://scratch.mit.edu) > > â¢ copies or derivative works must retain the Scratch copyright notice and license, and > > â¢ you must make the source code for derivative works available. > > This is just a summary; the full license is in the file "license.txt" included in the source code download package. > > The purpose of these restrictions is to avoid confusion in the Scratch user community between the official version of Scratch (supported by the Lifelong Kindergarten group) and experimental variations. We are happy the share our source code, but we want to protect the Scratch brand and our user community. > > We hope you will appreciate the reasons for these restrictions. > > > > > > > > I do not want to see code from scratch in Pharo. Bernat do you have the license.txt somewhere? > > > > Stef > > > > > > > > On Jul 29, 2011, at 12:12 PM, Bernat Romagosa wrote: > > > > > Oops sorry, I accidentally sent it twice. > > > > > > The license should be MIT, check out the "The Scratch Source Code License" section: http://info.scratch.mit.edu/Source_Code > > > > > > Although they don't specifically state what's the license for the Camera Plugin, I guess it just applies by extension since it belongs to the project and the whole project is MIT. > > > > > > If we are to include it in Pharo I suppose we should check it thoroughly... > > > > > > Cheers, > > > > > > 2011/7/29 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> > > > Hi Torsten, > > > > > > The plugin works out of the box for me in a Cog machine with no problems, just follow these instructions: > > > > > > * Get Scratch's CameraPlugin (you can get them here http://code.google.com/p/scat/downloads/list) > > > * Depending on your OS, place it in: > > > GNU/Linux and Win32 â The Pharo root directory. That is, where the .sh and .lnk files are. > > > MacOSX â The image path. > > > * FileIn the three .st files I attach (they originally came from the Scratch source, but were modified by us to get them working in Pharo) > > > * DoIt: ScratchCameraDialog new openCamera; openInWorld > > > > > > Of course, you don't need the ScratchCameraDialog class, but it's nice to have it as it's a pretty simple working example. I'm not sure whether you need CameraMedia either, didn't have time to check... > > > > > > Hope it helps! > > > > > > Cheers, > > > > > > 2011/7/29 Torsten Bergmann <astares(a)gmx.de> > > > Bernat Romagosa wrote: > > > > In Scat we've managed, maybe after lunch i can give you some directions > > > > to get it running. > > > > > > Yes, I managed to make it work last year, just with the > > > *.cs and the Win32 DLL from scratch. > > > > > > However feel free to post a short guide for the recent Pharo > > > image to the list so others can profit from it. > > > > > > > > > My post was more oriented towards the VM developers > > > since AFAIK there was a discussion of integrating > > > the plugin back into Squeak VM sources so it is > > > available in general to Squeak/Etoys/forks. > > > > > > As Bert wrote: > > > > > > "but the Scratch folks are interested in having their > > > plugins in the main Squeak VM, so they do not have to > > > package and maintain them themselves for ever." > > > > > > Would be nice if one would be able to use the cam > > > out of the box with a recent VM (standard and cog) and Pharo. > > > > > > Thx > > > Torsten > > > -- > > > NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurÃ¼ck-Garantie! > > > Jetzt informieren: http://www.gmx.net/de/go/freephone > > > > > > > > > > > > > > > -- > > > Bernat Romagosa. > > > > > > > > > > > > -- > > > Bernat Romagosa. > > > > > > > > > > > > -- > > Bernat Romagosa. > > <License.txt> > > > > > > -- > Bernat Romagosa.

July 29, 2011

Re: [Pharo-project] CameraPlugin for VM

by Igor Stasenko

Yes, apparently if Scratch team only concern to not confuse people with experimental forks and not use scratch logo, then they may state that if you using only parts of project which has nothing to do with it, these parts may be covered by just MIT license. (or something like that). On 29 July 2011 15:57, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > or you should ask a dual licensing. I'm curious to see if this code will flow into squeak. > > Stef > > > On Jul 29, 2011, at 3:16 PM, Bernat Romagosa wrote: > >> Sure, I attach it here. >> >> It looks like a standard MIT license with just these extra conditions added. >> >> 2011/7/29 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> Yet another license syndrom. >> >> The Scratch source code license allows you to distribute derivative works based on the Scratch source code for non-commercial uses subject to the following restrictions: >> Â Â Â Â â¢ you cannot use the word "Scratch" to refer to derivative works (except in the phrase "Based on Scratch from the MIT Media Laboratory"), >> Â Â Â Â â¢ you cannot use the Scratch logo or the official (copyrighted) Scratch cat in derivative works, >> Â Â Â Â â¢ you cannot implement the ability to upload projects to any MIT Scratch website (currently, http://scratch.mit.edu) >> Â Â Â Â â¢ copies or derivative works must retain the Scratch copyright notice and license, and >> Â Â Â Â â¢ you must make the source code for derivative works available. >> This is just a summary; the full license is in the file "license.txt" included in the source code download package. >> The purpose of these restrictions is to avoid confusion in the Scratch user community between the official version of Scratch (supported by the Lifelong Kindergarten group) and experimental variations. We are happy the share our source code, but we want to protect the Scratch brand and our user community. >> We hope you will appreciate the reasons for these restrictions. >> >> >> >> I do not want to see code from scratch in Pharo. Bernat do you have the license.txt somewhere? >> >> Stef >> >> >> >> On Jul 29, 2011, at 12:12 PM, Bernat Romagosa wrote: >> >> > Oops sorry, I accidentally sent it twice. >> > >> > The license should be MIT, check out the "The Scratch Source Code License" section: http://info.scratch.mit.edu/Source_Code >> > >> > Although they don't specifically state what's the license for the Camera Plugin, I guess it just applies by extension since it belongs to the project and the whole project is MIT. >> > >> > If we are to include it in Pharo I suppose we should check it thoroughly... >> > >> > Cheers, >> > >> > 2011/7/29 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> >> > Hi Torsten, >> > >> > The plugin works out of the box for me in a Cog machine with no problems, just follow these instructions: >> > >> > * Get Scratch's CameraPlugin (you can get them here http://code.google.com/p/scat/downloads/list) >> > * Depending on your OS, place it in: >> > Â Â GNU/Linux and Win32 â The Pharo root directory. That is, where the .sh and .lnk files are. >> > Â Â MacOSX â The image path. >> > * FileIn the three .st files I attach (they originally came from the Scratch source, but were modified by us to get them working in Pharo) >> > * DoIt: ScratchCameraDialog new openCamera; openInWorld >> > >> > Of course, you don't need the ScratchCameraDialog class, but it's nice to have it as it's a pretty simple working example. I'm not sure whether you need CameraMedia either, didn't have time to check... >> > >> > Hope it helps! >> > >> > Cheers, >> > >> > 2011/7/29 Torsten Bergmann <astares(a)gmx.de> >> > Bernat Romagosa wrote: >> > > In Scat we've managed, maybe after lunch i can give you some directions >> > > to get it running. >> > >> > Yes, I managed to make it work last year, just with the >> > *.cs and the Win32 DLL from scratch. >> > >> > However feel free to post a short guide for the recent Pharo >> > image to the list so others can profit from it. >> > >> > >> > My post was more oriented towards the VM developers >> > since AFAIK there was a discussion of integrating >> > the plugin back into Squeak VM sources so it is >> > available in general to Squeak/Etoys/forks. >> > >> > As Bert wrote: >> > >> > "but the Scratch folks are interested in having their >> > Â plugins in the main Squeak VM, so they do not have to >> > Â package and maintain them themselves for ever." >> > >> > Would be nice if one would be able to use the cam >> > out of the box with a recent VM (standard and cog) and Pharo. >> > >> > Thx >> > Torsten >> > -- >> > NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurÃ¼ck-Garantie! >> > Jetzt informieren: http://www.gmx.net/de/go/freephone >> > >> > >> > >> > >> > -- >> > Bernat Romagosa. >> > >> > >> > >> > -- >> > Bernat Romagosa. >> >> >> >> >> >> -- >> Bernat Romagosa. >> <License.txt> > > > -- Best regards, Igor Stasenko AKA sig.

July 29, 2011

Re: [Pharo-project] cool to see pier, and other running on 1.3

by Norbert Hartl

Am 29.07.2011 um 11:56 schrieb Mariano Martinez Peck: > > > On Fri, Jul 29, 2011 at 11:51 AM, Lukas Renggli <renggli(a)gmail.com> wrote: > >> Zinc can nicely play out the keep-alive. Kom doesn't support > >> keep-alive. With Swazoo a lot of requests fail if keep-alive is > >> enabled (so I disabled it). Details in the attachment. > > > > what is keep-alive? > > The server keeps the socket open after a request-response cycle and > allows clients (browsers) to reuse the same socket for multiple > requests. This is typically faster than to open a new socket for each > request. > > > What is the difference between that and a database connection pool ? > Both are resource reusing techniques. But a database connection lies above a socket connection and is independent from it. You can send database request over an arbitrary socket connection to the database. This way you can't introduce a security problem. Pooling sockets is more difficult. If things communicating over the socket the authentication might going over that wire and authenticates the connection/socket instead of some abstracted session. In this scenario a socket pool would open a huge security problem giving access randomly to restricted sources. Norbert

July 29, 2011

[Pharo-project] CameraPlugin for VM

by Torsten Bergmann

Stef wrote: >or you should ask a dual licensing. I'm curious to see if this code will >flow into squeak. Did you read the short license discussion at http://forum.world.st/Camera-plugins-was-Re-Video-Media-in-Squeak-td2020502… and especially the permission given: http://tracker.squeakland.org/secure/attachment/13870/ScratchPlugin-Permiss… Dont know if this is enough... Bye T. -- Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de

July 29, 2011

Re: [Pharo-project] who is in charge of the web pages?

by laurent laffont

I can do it Laurent. On Fri, Jul 29, 2011 at 10:55 AM, StÃ©phane Ducasse < stephane.ducasse(a)inria.fr> wrote: > Hi > > I would like to be sure that we have a fuse or two when adrian is busy or > in vacation. > Who is in charge of the web page because johannes sent me a better picture > and I would like to put it on the contributors list. > > Stef >

July 29, 2011