- Pharo-users - lists.pharo.org

pharo ci account
by Paul DeBruicker Oct. 27, 2013

Oct. 27, 2013

Hi - May I please have an account on the CI? I'd like to set up some project builds. I'd also like to use your Jenkins to trigger builds on Travis. But I'm not yet sure how to do that. Thanks Paul

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Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless
by Srikumar K. S. Oct. 25, 2013

Oct. 25, 2013

Hi Norbert, I don't think it is RFB's fault either. I did give the complete steps I did. Perhaps just a wait loop after each of the steps is all it takes, 'cos since I did those steps using the local vm by hand before the "save and quit". I know how to wait for RFBServer to start (1), but I'm not sure how to wait for the load to finish or whether I need to. Anyway, I'm happy now since RFB is running fine with the manually created image. Thanks! ... and all this is pretty cool! -Kumar (1) [RFBServer current isRunning] whileFalse: [1 second asDelay wait] On 25 Oct, 2013, at 7:51 PM, pharo-users-request(a)lists.pharo.org wrote: > Date: Fri, 25 Oct 2013 16:21:49 +0200 > From: Norbert Hartl <norbert(a)hartl.name> > To: Pharo users users <pharo-users(a)lists.pharo.org> > Subject: Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless > Message-ID: <CCECFED4-ED69-4802-A23D-70DECA2B81A5(a)hartl.name> > Content-Type: text/plain; charset=windows-1252 > > Hi Srikumar, > > can you tell what other software you have installed in your image. I know the effect but I?m still not fully convinced it is RFBs fault. > > Norbert > > Am 25.10.2013 um 05:24 schrieb Srikumar Karaikudi Subramanian <srikumarks(a)gmail.com>: > >> Hi, >> >> Since this is my first post, I'd first like to say Pharo rocks! >> After quite a bit of search for a server-side programming environment >> that I can live with, I landed on Pharo/Zinc+family and went >> "this is it!" for my project which is like a wiki for music >> notation. >> >> I'm trying to setup a pharo+zinc server with RFB installed on a VPS >> so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). >> I'm only get a static image of the pharo environment when I connect >> and I don't get any interactivity at all. One other poster [1] who >> mentioned this also posted that the problem was solved with a >> later version of squeak, which I didn't have any luck with since I don't >> have X configured on my server. >> >> Much appreciate any tips. >> >> I got pharo from get.pharo.org and cloned the image using "save". >> I run the following script on the cloned image with >> the "-headless" flag (I tried with and without the flag.) >> >> "----begin code---" >> Gofer it >> squeaksource: 'MetacelloRepository'; >> package: 'ConfigurationOfRFB'; >> load. >> (Smalltalk at: #ConfigurationOfRFB) load. >> >> (RFBServer current) >> allowEmptyPasswords: false; >> allowRemoteConnections: false; >> allowInteractiveConnections: true; >> allowZRLE: true; >> setFullPassword: 'my password'; >> start: 0. >> >> [1 hour asDelay wait] repeat. >> "----end code----" >> >> One other point - if I save an image after loading the RFB package >> (using "Smalltalk snapshot: true andQuit: true.") and then >> launch with a script that only starts the server, I get a static black screen >> instead and not even the static image. So I don't understand why >> there should be a behaviour difference between the two as well. >> >> Regards to all, >> -Kumar >> >> [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662

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Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless
by Srikumar K. S. Oct. 25, 2013

Oct. 25, 2013

Hi Ben, Thanks for the welcome :) My problem doesn't seem to be related to the semaphore issue and more likely reflects my noob status. I'm up and running now though. I was afraid of having to run xpra or something since it would eat server memory, but thankfully RFBServer seems to work fine now. Best, -Kumar On 25 Oct, 2013, at 7:51 PM, pharo-users-request(a)lists.pharo.org wrote: > Date: Fri, 25 Oct 2013 22:11:33 +0800 > From: btc(a)openinworld.com > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Subject: Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless > Message-ID: <526A7C15.60203(a)openinworld.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Srikumar, > Welcome to the community. Really great to hear you are enjoying Pharo, > and got your problem solved yourself. Hope to see more of you here. > > I don't have a direct answer for your queries. I haven't used RFB like > that before. I remember a thread about RFB and semaphores that might > have related information. Google "RFB on 2.0 + linux - semaphore > primitive failed" > > cheers -ben > > Srikumar Karaikudi Subramanian wrote: >> Hi, >> >> Since this is my first post, I'd first like to say Pharo rocks! >> After quite a bit of search for a server-side programming environment >> that I can live with, I landed on Pharo/Zinc+family and went >> "this is it!" for my project which is like a wiki for music >> notation. >> >> I'm trying to setup a pharo+zinc server with RFB installed on a VPS >> so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). >> I'm only get a static image of the pharo environment when I connect >> and I don't get any interactivity at all. One other poster [1] who >> mentioned this also posted that the problem was solved with a >> later version of squeak, which I didn't have any luck with since I don't >> have X configured on my server. >> >> Much appreciate any tips. >> >> I got pharo from get.pharo.org and cloned the image using "save". >> I run the following script on the cloned image with >> the "-headless" flag (I tried with and without the flag.) >> >> "----begin code---" >> Gofer it >> squeaksource: 'MetacelloRepository'; >> package: 'ConfigurationOfRFB'; >> load. >> (Smalltalk at: #ConfigurationOfRFB) load. >> >> (RFBServer current) >> allowEmptyPasswords: false; >> allowRemoteConnections: false; >> allowInteractiveConnections: true; >> allowZRLE: true; >> setFullPassword: 'my password'; >> start: 0. >> >> [1 hour asDelay wait] repeat. >> "----end code----" >> >> One other point - if I save an image after loading the RFB package >> (using "Smalltalk snapshot: true andQuit: true.") and then >> launch with a script that only starts the server, I get a static black screen >> instead and not even the static image. So I don't understand why >> there should be a behaviour difference between the two as well. >> >> Regards to all, >> -Kumar >> >> [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662

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Pharo 2.0 with RFBServer with -headless
by Srikumar Karaikudi Subramanian Oct. 25, 2013

Oct. 25, 2013

Hi, Since this is my first post, I'd first like to say Pharo rocks! After quite a bit of search for a server-side programming environment that I can live with, I landed on Pharo/Zinc+family and went "this is it!" for my project which is like a wiki for music notation. I'm trying to setup a pharo+zinc server with RFB installed on a VPS so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). I'm only get a static image of the pharo environment when I connect and I don't get any interactivity at all. One other poster [1] who mentioned this also posted that the problem was solved with a later version of squeak, which I didn't have any luck with since I don't have X configured on my server. Much appreciate any tips. I got pharo from get.pharo.org and cloned the image using "save". I run the following script on the cloned image with the "-headless" flag (I tried with and without the flag.) "----begin code---" Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfRFB'; load. (Smalltalk at: #ConfigurationOfRFB) load. (RFBServer current) allowEmptyPasswords: false; allowRemoteConnections: false; allowInteractiveConnections: true; allowZRLE: true; setFullPassword: 'my password'; start: 0. [1 hour asDelay wait] repeat. "----end code----" One other point - if I save an image after loading the RFB package (using "Smalltalk snapshot: true andQuit: true.") and then launch with a script that only starts the server, I get a static black screen instead and not even the static image. So I don't understand why there should be a behaviour difference between the two as well. Regards to all, -Kumar [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662

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Reset Spec #openWorldWithSpec:
by btc＠openinworld.com Oct. 25, 2013

Oct. 25, 2013

Message #openWorldWithSpec: sets a Spec entity to take up the whole World. How can that be reverted? ...to set the World back to the state delivered with a virgin Pharo image? cheers -ben

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Proper way of handling multiple exception sections
by Norbert Hartl Oct. 25, 2013

Oct. 25, 2013

Iâm thinking about what would be the proper/least annoying way of having multiple exception sections. If I have a code block that can emit two different exceptions is the only way doing it [ [ ... ] on: Exception1 do: [ â¦ ] ] on: Exception2 do: [ â¦ ] on:do: just calls a primitive that marks the context being an exception handler. What is called in the image when the stack is scanned to find an exception handler? thanks, Norbert

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Spec Question
by Manfred KrÃ¶hnert Oct. 25, 2013

Oct. 25, 2013

Hi everyone, I finally got around to check back on a Spec question that popped up about two weeks ago. At that time I was giving Spec a first try and gathered information from a couple of sources. One of them was the draft chapter about Spec from the Pharo for the Enterprise book. https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/ws/Spec/Sp… The example has the following method: TestSpec>>initializePresenter example whenTextIsAccepted: [ changes text: 'The text Changed'. acceptChanges enable ]. This should change the text of the 'changes' LabelModel when the text in the 'example' TextModel is accepted. Now, there the issue for me was that the Label text did not change once when I typed text into the presented textfield. Even when I changed the method from 'whenTextIsAccepted:' to 'whenTextChanged:'. Is this intended or is this an issue with Spec? Also, it is not clear to me what 'accepting' text means (maybe I didn't look thoroughly enough). The method comment just states that it is called when the text is accepted. Which is kind of self referential ;-) The OS X Pharo versions I used for testing where newly downloaded Pharo 2.0 and 3.0 from about 2 weeks ago. They were downloaded from here: http://files.pharo.org/platform/Pharo2.0-mac.zip http://files.pharo.org/platform/Pharo3.0-mac.zip Best, Manfred

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Has anyone tried?
by Friedrich Dominicus Oct. 24, 2013

Oct. 24, 2013

To use PetitParser for XSD Parsing and generation of Smalltalk code based on this Parsing? Regards Friedrich

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Tip: Recovering a broken image
by Bernat Romagosa Oct. 24, 2013

Oct. 24, 2013

Hi list, I've just recovered a broken image that crashed upon startup. There was some problem with a SerialPort that stayed open and tried to write/read into a physical port that didn't exist no more, or something of the sort. So here's the magic line: $ bin/myVm shared/MyImage.image eval "SmalltalkImage backupTo: 'recover'" This makes a copy of the image into a new image called "recover.image", but as the documentation states: *Unlike #saveAs: do not transfer the default execution to the new image. * So there you go! Hope it helps someone else. :) -- Bernat Romagosa.

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Zinc: How to use the @ character in an URL
by Olivier Auverlot Oct. 24, 2013

Oct. 24, 2013

Hi, I work actually on a framework to manage a Proxmox server. The Proxmox solution is based on a strange REST APIâ¦ :-( To get informations about an user, I must send a string with the login and the authentication domain. The two values are separated by a character @. For example: GET /api2/extjs/access/users/auverlot@LIFL My first problem with Zinc is that the client find the character @ and the client think that this is an URL with authentication. I tried to use an encoding string with %40 but Proxmox don't find the user. The solution must be to modify the method ZnUrl>>#parseAuthority:from:to: to do a better detection of authentication pattern: parseAuthority: string from: start to: stop | index | index := string indexOf: $@ startingAt: start. (index > 0 and: [ (string indexOf: $: startingAt: start) < index and: [ index < (string indexOf: $/ startingAt: start) ] ]) ifTrue: [ self parseUserInfo: (ReadStream on: string from: start to: index - 1). self parseHostPort: (ReadStream on: string from: index 1 to: stop ) ] ifFalse: [ self parseHostPort: (ReadStream on: string from: start to: stop ) ] But, it's not the end of the road :-( Because in the next steps, Zinc encodes the character @ in the url. How to disabled the automatic encoding and using special characters in the url ? Thanks for your help. Best regards Olivier ;-)

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