August 2010 - Pharo-users - lists.pharo.org

Invoking external processes/IPC
by Marcin Tustin Aug. 25, 2010

Aug. 25, 2010

Hi all, I'm an occasional squeak/pharo dabbler, and I'm wondering what the recommended way of interacting with external processes is these days? Should I go through the process of getting all the VMMaker and OSProcess stuff, and build the OSProcess plugin, or is there some other way in Pharo to interact with the OS environment? Alternatively, are people doing something (easy) with IPC mechanisms like named sockets or TCP streams? The "project" I'm working on is putting figlet on a website, just for fun. Marcin -- Marcin Tustin Mobile: 07773787105 Office: 020 3400 3259

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Re: [Pharo-users] Invoking external processes/IPC
by Marcin Tustin Aug. 25, 2010

Aug. 25, 2010

I'm not sure that I would class the fact that Alien wants the Special Objects Array to be bigger than it actually is to be a mere installation issue. On Wed, Aug 25, 2010 at 10:13 AM, John McIntosh < johnmci(a)smalltalkconsulting.com> wrote: > Ask on the Pharo list for help or instruction on loading alien into > pharo, I didn't write any of the loader code so I can't deal with the fact > it may or may not be broken. > > Sent from my iPad > > On 2010-08-25, at 1:30 AM, Marcin Tustin <mm3(a)zepler.net> wrote: > > John, > > Do you have any intention of commenting on this, even to confirm that you > are content for Alien to be incompatible with current versions of Pharo? > > Marcin > > On Mon, Aug 23, 2010 at 11:15 PM, Marcin Tustin <mm3(a)zepler.net> wrote: > >> John, >> >> That is the installation recipe I was following, as should have been >> apparent from my description of the process followed given in my previous >> email. My problem occurred on the first step after loading the >> ConfigurationOfAlien package. >> >> For completeness, I tried loading ConfigurationOfAlien using Gofer, and >> the exact same thing occurred. I also note that Gofer>>addPackage is >> deprecated. >> >> Marcin >> >> >> >> >> On Mon, Aug 23, 2010 at 10:40 PM, John M McIntosh < >> johnmci(a)smalltalkconsulting.com> wrote: >> >>> LIkely the installation process is wrong, look at the >>> http://squeaksource.com/@EGv-75Ct7JEKFz5m/rnvjMef8 >>> and follow the instructions for installing there. >>> >>> On 2010-08-23, at 2:08 PM, Marcin Tustin wrote: >>> >>> Following Mariano's advice, I just tried installing Alien (using >>> Pharo-1.1-11406-rc3 with the Seaside RC3 image; this is a sane version, not >>> affected by previous package loading problems). >>> >>> I loaded ConfigurationOfAlien (ConfigurationOfAlien-KenTreis.26) using >>> Monticello, then executed ConfigurationOfAlien loadCore (as per the >>> instructions). That resulted in an error: >>> 'SystemDictionary>>recreateSpecialObjectsArray appears incompatible' raised >>> from ensureInSpecialObjectsArray. The cause appears to be that Alien wants >>> to be in the special objects array at 53, but the array is created to be >>> size 50. >>> >>> Proceeding through the error results in the predictable subscript out of >>> bounds error. >>> >>> running loadCore once more (second time) does the same thing. Doing it a >>> third time results in a message not understood 'initScannerForTokenization' >>> from Parser>>ParseSelector:. >>> >>> Any ideas? >>> >>> >>> On Mon, Aug 23, 2010 at 8:41 PM, Marcin Tustin <mm3(a)zepler.net> wrote: >>> >>>> Mariano, >>>> >>>> Thanks for this. I belive CommandShell depends on OSProcess. I am using >>>> windows, so I guess neither is a runner anyway. I'll try FFI/AlienFFI. >>>> >>>> Marcin >>>> >>>> >>>> On Mon, Aug 23, 2010 at 8:19 PM, Mariano Martinez Peck < >>>> marianopeck(a)gmail.com> wrote: >>>> >>>>> >>>>> >>>>> On Mon, Aug 23, 2010 at 7:45 PM, Marcin Tustin <mm3(a)zepler.net>wrote: >>>>> >>>>>> Hi all, >>>>>> >>>>>> I'm an occasional squeak/pharo dabbler, and I'm wondering what the >>>>>> recommended way of interacting with external processes is these days? >>>>>> >>>>>> Should I go through the process of getting all the VMMaker and >>>>>> OSProcess stuff, and build the OSProcess plugin, or is there some other way >>>>>> in Pharo to interact with the OS environment? >>>>>> >>>>>> >>>>> Hi. Which OS are you? because I think OSProcess is not working on >>>>> Windows. And I also think there are binaries for it, so you don't need to >>>>> generate .c from VMMaker neither compile c code to binary. >>>>> But I may be wrong. >>>>> >>>>> CommandShell ? >>>>> >>>>> Maybe using normal FFI or AlienFFI? They will let you invoke shared >>>>> libraries of the OS from Pharo. >>>>> >>>>> >>>>>> Alternatively, are people doing something (easy) with IPC mechanisms >>>>>> like named sockets or TCP streams? >>>>>> >>>>>> The "project" I'm working on is putting figlet on a website, just for >>>>>> fun. >>>>>> >>>>>> Marcin >>>>>> >>>>>> -- >>>>>> Marcin Tustin >>>>>> Mobile: 07773787105 >>>>>> Office: 020 3400 3259 >>>>>> >>>>>> _______________________________________________ >>>>>> Pharo-users mailing list >>>>>> Pharo-users(a)lists.gforge.inria.fr >>>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> Pharo-users mailing list >>>>> Pharo-users(a)lists.gforge.inria.fr >>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>>>> >>>>> >>>> >>>> >>>> -- >>>> Marcin Tustin >>>> Mobile: 07773787105 >>>> Office: 020 3400 3259 >>>> >>> >>> >>> >>> -- >>> Marcin Tustin >>> Mobile: 07773787105 >>> Office: 020 3400 3259 >>> >>> >>> -- >>> >>> =========================================================================== >>> John M. McIntosh <johnmci(a)smalltalkconsulting.com> Twitter: >>> squeaker68882 >>> Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com >>> >>> =========================================================================== >>> >>> >>> >>> >>> >> >> >> -- >> Marcin Tustin >> Mobile: 07773787105 >> Office: 020 3400 3259 >> > > > > -- > Marcin Tustin > Mobile: 07773787105 > Office: 020 3400 3259 > > -- Marcin Tustin Mobile: 07773787105 Office: 020 3400 3259

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Re: [Pharo-users] Invoking external processes/IPC
by Marcin Tustin Aug. 25, 2010

Aug. 25, 2010

John, That is the installation recipe I was following, as should have been apparent from my description of the process followed given in my previous email. My problem occurred on the first step after loading the ConfigurationOfAlien package. For completeness, I tried loading ConfigurationOfAlien using Gofer, and the exact same thing occurred. I also note that Gofer>>addPackage is deprecated. Marcin On Mon, Aug 23, 2010 at 10:40 PM, John M McIntosh < johnmci(a)smalltalkconsulting.com> wrote: > LIkely the installation process is wrong, look at the > http://squeaksource.com/@EGv-75Ct7JEKFz5m/rnvjMef8 > and follow the instructions for installing there. > > On 2010-08-23, at 2:08 PM, Marcin Tustin wrote: > > Following Mariano's advice, I just tried installing Alien (using > Pharo-1.1-11406-rc3 with the Seaside RC3 image; this is a sane version, not > affected by previous package loading problems). > > I loaded ConfigurationOfAlien (ConfigurationOfAlien-KenTreis.26) using > Monticello, then executed ConfigurationOfAlien loadCore (as per the > instructions). That resulted in an error: > 'SystemDictionary>>recreateSpecialObjectsArray appears incompatible' raised > from ensureInSpecialObjectsArray. The cause appears to be that Alien wants > to be in the special objects array at 53, but the array is created to be > size 50. > > Proceeding through the error results in the predictable subscript out of > bounds error. > > running loadCore once more (second time) does the same thing. Doing it a > third time results in a message not understood 'initScannerForTokenization' > from Parser>>ParseSelector:. > > Any ideas? > > > On Mon, Aug 23, 2010 at 8:41 PM, Marcin Tustin <mm3(a)zepler.net> wrote: > >> Mariano, >> >> Thanks for this. I belive CommandShell depends on OSProcess. I am using >> windows, so I guess neither is a runner anyway. I'll try FFI/AlienFFI. >> >> Marcin >> >> >> On Mon, Aug 23, 2010 at 8:19 PM, Mariano Martinez Peck < >> marianopeck(a)gmail.com> wrote: >> >>> >>> >>> On Mon, Aug 23, 2010 at 7:45 PM, Marcin Tustin <mm3(a)zepler.net> wrote: >>> >>>> Hi all, >>>> >>>> I'm an occasional squeak/pharo dabbler, and I'm wondering what the >>>> recommended way of interacting with external processes is these days? >>>> >>>> Should I go through the process of getting all the VMMaker and OSProcess >>>> stuff, and build the OSProcess plugin, or is there some other way in Pharo >>>> to interact with the OS environment? >>>> >>>> >>> Hi. Which OS are you? because I think OSProcess is not working on >>> Windows. And I also think there are binaries for it, so you don't need to >>> generate .c from VMMaker neither compile c code to binary. >>> But I may be wrong. >>> >>> CommandShell ? >>> >>> Maybe using normal FFI or AlienFFI? They will let you invoke shared >>> libraries of the OS from Pharo. >>> >>> >>>> Alternatively, are people doing something (easy) with IPC mechanisms >>>> like named sockets or TCP streams? >>>> >>>> The "project" I'm working on is putting figlet on a website, just for >>>> fun. >>>> >>>> Marcin >>>> >>>> -- >>>> Marcin Tustin >>>> Mobile: 07773787105 >>>> Office: 020 3400 3259 >>>> >>>> _______________________________________________ >>>> Pharo-users mailing list >>>> Pharo-users(a)lists.gforge.inria.fr >>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>>> >>>> >>> >>> _______________________________________________ >>> Pharo-users mailing list >>> Pharo-users(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >>> >>> >> >> >> -- >> Marcin Tustin >> Mobile: 07773787105 >> Office: 020 3400 3259 >> > > > > -- > Marcin Tustin > Mobile: 07773787105 > Office: 020 3400 3259 > > > -- > =========================================================================== > John M. McIntosh <johnmci(a)smalltalkconsulting.com> Twitter: > squeaker68882 > Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com > =========================================================================== > > > > > -- Marcin Tustin Mobile: 07773787105 Office: 020 3400 3259

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WebClient
by Sven Van Caekenberghe Aug. 24, 2010

Aug. 24, 2010

Hi, Andreas Raab's 'new' WebClient/WebServer seems quite nice, as he says himself: As a result, we now have what I think is a pretty decent HTTP server and client implementation for Squeak 4.1 and hopefully we can nuke HTTPSocket sometime soon. WebClient is superior in every respect. Is this something that will / should fit seamlessly into Pharo ? Or even become preinstalled ? I didn't try his ConfigurationOfWebClient since the last version was unreadable and it seemed like an experiment, while his textual explanation was easy to follow. To load it into and to make the unit tests run in Pharo 1.0 I had to make a couple of fixes (to WebCookie#printOn: and WebServer class#serverString). Who should I sent these changes to ? But even then 1 unit test failed (#testServerDestroy). Furthermore, some the changes in his package WebClient-Pharo seem a bit dangerous, especially a modification to SocketStream#peek (and the failed test was doing a peek) and an override of String#, some others are unneccessary as far as I can see. Sven -- Sven Van Caekenberghe - mailto:sven@beta9.be Beta Nine - software engineering - http://www.beta9.be .Mac - svc(a)mac.com - http://homepage.mac.com/svc

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[update 1.2] #12109
by StÃ©phane Ducasse Aug. 24, 2010

Aug. 24, 2010

12109 ----- - Issue 2856: Use unique URL to core from [Dev image]->World Menu->System>Software update. Thanks Sean De Nigris - Issue 2855: Improve Duration method comments. Gracias Guillermo Polito. - Integrated NullStyler. Thanks Benjamin van Ryseghem. I put it in the same package than the new text editor. Stef (a bit more busy than used and this is sunny and the kids have new rollerblades so we should run together :)

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[Survey] Assess the cycles in your software
by Laval Jannik Aug. 24, 2010

Aug. 24, 2010

Hi Pharoers, and Smalltalkers in general, Have you seen waited to assess the cycles in your software? Now you can :) We request some of you to perform an experiment using DSM to see your software package structure and to fix cycles between packages. Our tool shows dependencies between packages and highlight some bad dependencies generating structure cycles. It also helps to understand dependencies. Your goal is to fill a survey using our tool. I prepared a mini-tutorial about DSM and eDSM. It can help you to understand the visualization tool. To ease the use of our tool, I loaded it in a PharoCore1.2. And there are two archives available: - the first contains an image with our tool with a model of Pharo loaded in it, so you can play with our tool on pharo itself. It can be downloaded here: http://dl.dropbox.com/u/7739334/dsmWithPharo.zip. Pay attention, the image is slow. - the second contains the same thing without the model of Pharo. Here, you have to load your code, then populate a moose model and use the tool. It can be downloaded here: http://dl.dropbox.com/u/7739334/dsmWithoutPharo.zip The two archives contain the tutorial and the survey. If you are a pharo integrator, we suggest you to take the one with Pharo model loaded, else the other. To use our tool, load your tool in Pharo. Then do "MoosePanel open", and import your software in Moose by "import from Smalltalk image". When it is imported, select your project in the list on the left of MoosePanel, and select "all model packages" on the list on center. Then, you have two choices: - you can scan all your project: right click on "all model packages" and do DSM. - or select "all model packages" then select some packages in the next list and right click, do DSM. After that, you can perform the survey (with reading of the tutorial). We need your answers for the end of August. So, you have two months to do it. If you have any question, just let me know. Best regards, Jannik. --- Jannik Laval PhD Student - Rmod Team - INRIA Certified Project Management Associate (IPMA) http://www.jannik-laval.eu http://rmod.lille.inria.fr ---

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Freetype package breaks preferences browser?
by Marcin Tustin Aug. 24, 2010

Aug. 24, 2010

Hi all, Further to my previous email, I decided to install OSProcess/VMMaker. VMMaker installs a version of the freetype package, or rather fails to do so. This appears to be because it use _ for assignment, rather :=. Unfortunately, incompletely installing the package appears to have broken the preferences browser (attempting to launch it from the main menu results in an exception). Is there a way to undo the changes from the various packages loaded, and thus return my image to a sane state, or an alternative way to enable _, so that loading can continue? Marcin -- Marcin Tustin Mobile: 07773787105 Office: 020 3400 3259

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Aug. 23, 2010

3600 seconds seconds = 0 which means that this is a number of seconds in the hour:min:seconds decomposition Now it looks to me that the method comment is wrong seconds "Answer the number of seconds the receiver represents." ^ (seconds rem: SecondsInMinute) 3600 seconds asSeconds = 3600 is what is working may be (Duration seconds: 3600) would be better To me there is something conceptually bogus with such definition of minutes and seconds. (Duration seconds: 3600) minutes = 0 (Duration seconds: 3600) seconds = 0 Stef

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Aug. 23, 2010

12108 ----- - Issue 2653: Editor cursor fix. Thanks Fernando Olivero and Chris Muller. - Issue 1400: Make Question Dialog more usable. Thanks Gary Chambers - Issue 2849: Improve About Dialog (and possibly provide new AlphaImageMorph defaultImage). Thanks Torsten Bergman. Thanks guys! It looks like this is an obvious statement but this is not :) Stef

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Re: [Pharo-users] MethodName
by Benjamin Van Ryseghem Aug. 23, 2010

Aug. 23, 2010

> > Message: 1 > From: Mariano Martinez Peck <marianopeck(a)gmail.com> > > Hi Benjamin. Thanks a lot for all the work you are doing. When we start to > build PharoDev 1.2 I would like to include your new recent submission and > this method finder. > Thank you, it's a good news to hear :) > It is very good idea to merge both, as it was very confusing. > > Here is my feedback > > 1) You have to provide a help text somewhere. Ok, entering a message name > is > easy. For example, if I want to see all messages like #setUp for example. > That's intuitive. But, if I want to search the method that sending to an > object 'aaa' answers me 'AAA', it is not intuitive to type: 'aaa' . 'AAA' . > so....this should be explained somewhere. Maybe you can add a text > explaining this (like it was in the previous tool) in the code panel. > Because when you first open MethodName, the code panel is empy...you can > use > is and write there the text. Of course, an extra button help would be nice > too :) > Now, instead of having an empty text area, the method finder help is diplayed. About the button, I have no idea where to add it in the UI (it's already quite full) > > 2) In addition to 1) writing a HelpSystem chapter / Pharo Collaborative > book > is important. What I mean is that if we are going to include a new tool in > the Pharo mainstream, then it should be easy to use and documented. > I'm agree to try writing one, but I need further informations (and probably some help ) :) > > 3) The scroll of "change search envirorment" is veryyyyyyy slow. I know it > is not "your" fault, but maybe someone can give you an idea of how to > improve this. Maybe Tudor, Alexandre, Lukas, Gary...I don't know. > I've forgotten to initialize a class variable in PackageChooserUI. Now the default behavior is to show only packages. This way, the chooser is quick enough. I worked on a Package->Classes representation but it's slow and I had some trouble with selection so i've choosen to wait until packages be Objects instead of String to resume this part. 4) Most of the buttons are confusing because you don't know when you should > be able to use them. For example, all the button (browse, senders, etc) are > only usable when you select a specific implementor. But > > a) they are not disable at the beginning (before choosing a selector), thus > someone would try to use them just after selecting a method name. > > b) not all of them require an implementor. For example, to search the > senders, I don't need to select a particular implementor. Just having the > selector is enough. > > So...I would put those buttons inside the right panel (where you list the > implementors) or disable (grey) them when not needed. > It's fixed now :) > > 5) This one is difficult to explain....Take method name and type in the > serach inpit: 'aaa' . 'AAA'. Hit serach and you will see 'aaa' asUppercase > -> 'AAA' listed in the left panel. If you click EVERYWHERE inside that > panel, the first one is selected. Thus, it is easy and fast becasue you > DONT > need to go the the first raw and mark it. Ok? > > Now....do the same but write "setUp". You will see several methods that > match that. Select any of them, and in the right panel you will have a > list. > A lot of times, there is one implementor. And of course you want > that....but > doing the same of the previous case doesn't work. You have to go exactly to > that raw in order to select it. > > okok...I know, I am lazy :) > I'm pretty lazy too so now, if it's possible, the first choice isautomaticallychoosen ^^ Moreover, when a Method Name window is open, the focus is already given to the searching text area :) > > Thanks again for this > > Mariano > Thank you for your advice ^^ ----------------------------------------------------------------------------------------------------------------------------------------------------- > > Message: 2 > > > Hi Benjamin. Thanks a lot for all the work you are doing. When we start > to build PharoDev 1.2 I would like to include your new recent submission and > this method finder. > > > I want to integrate recentMessage to replace the default one. > Same for the new Finder once it is ready. > I did not have the time. > I think that this is important to take the time to rethink what we want. > > Stef > Thank you :) Ben

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