February 2019 - Pharo-users

Re: [Pharo-users] How to intercept instvar write - MetaLinks + anonymous subclass problem

by Marcus Denker

> > Thanks for answer! I want to detect instvar writes only for objects (instances), that was previously fetched from external "datastore" (DB like), so I can persist changed objects only back to the datastore at the end of transaction. These objects can be any existing class (Pharo classes, some 3rd party libs classes, everything), so 1) injecting a class is overkill (affects all objects in the image) 2) impossible to rewrite #class method for every existing class. > > Injecting object-centric metalinks via anonymous subclass breaks up many things, when I want to treat injected object like any othres (IMHO). > > If you will be able to avoid this issue, that would be extra cool :-] > > Note: for now, best for my "instvar writes detection" would be probably hack Object>>#attemptToAssign:withIndex: or ProtoObject>>#modificationForbiddenFor:index:value: and make my "datastore fetched objects" read only (via Object>>#setIsReadOnlyObject:). > The read-only approach has the nice property that it works for collections, too. The meta-link model falls short there (you can not âput a link on offset 4 in this arrayâ, but would need to put it on at:put:) I started to play with it to see what is needed to create a generalised change detector with read only: https://github.com/MarcusDenker/ChangeDetector Marcus

Feb. 5, 2019

Re: [Pharo-users] Slots doc

by Marcus Denker

>>> > > Slots are already part of Pharo and are totally useable. > Some example slots are buggy though. > Yes, I have a list of issues to fix. Especially related to instance migration when changing class definitions. (among others). I sometimes wonder how to find the concentrate time to really looks as all this.. there is already so much todo... > Explore Slot and subclasses, their class comments and methods. > > One thing to note is if you change #emitStore: or #emitValue: methods in > your slot class, you need to trigger change in classes that use it. > > Yes, we need to recompile method that use slots with code generation if the code gen methods change. I think there should be even a way to do that automatically. Marcus

Feb. 5, 2019

Re: [Pharo-users] Running test

by john pfersich

On MaxOS Mojave, the bundle is corrupt [image: Screen Shot 2019-02-05 at 01.20.41.png] On Tue, Feb 5, 2019 at 1:04 AM eftomi <tomaz.turk(a)ef.uni-lj.si> wrote: > It works fine on Win 10 Pro (Version 10.0.17134 Build 17134). > > Tomaz > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Feb. 5, 2019

Re: [Pharo-users] Running test

by eftomi

It works fine on Win 10 Pro (Version 10.0.17134 Build 17134). Tomaz -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 5, 2019

Re: [Pharo-users] Why DirectoryIsNotEmpty on FileReference>>deleteAll ?

by Alistair Grant

Hi Albrecht, On Fri, 1 Feb 2019 at 19:50, Albrecht Baur via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > I get a DirectoryIsNotEmpty exception on > FileReference(AbstractFileReference)>>deleteAll. Would you please confirm which version of the VM and Pharo you're using? (copy the output of System -> System Reporter default page) Thanks, Alistair

Feb. 5, 2019

Re: [Pharo-users] Github pharo-* organizations

by Esteban Lorenzano

Hi, Naming the teams âpharo-somethingâ was kind of my idea to improve visibility of pharo. This has been followed by others which means we do not know all organisations nor all pharo contributions are made under a pharo-something team (in fact the less of them). We have in our TODO a new version of the catalog that will be âGitHub basedâ to group all projects. To find projects in GitHub, I have some queries: Tonel/filetree repositories (in .properties): https://github.com/search?q=%22%23format+%3A+%23tonel%22+in%3Afile&type=Code <https://github.com/search?q=%22#format+:+#tonel"+in:file&type=Code> https://github.com/search?q=%22%23format+%3A+%23filetree%22+in%3Afile&type=… <https://github.com/search?q=%22#format+:+#tonel"+in:file&type=Code> Filetree repositories: https://github.com/search?q=.filetree+in%3Apath&type=Code <https://github.com/search?q=.filetree+in:path&type=Code> (Lots of this ones) We should build some tooling around this, Iâm quite sure is possible to do a lot more. Esteban > On 5 Feb 2019, at 02:42, Pierce Ng <pierce(a)samadhiweb.com> wrote: > > Hi all, > > Is there a definitive list of all the pharo-* organizations on GH? Like > pharo-rdbms, pharo-nosql, pharo-vcs, ... Or, a way to query GH to find out? > > Pierce >

Feb. 5, 2019

Re: [Pharo-users] Non-greedy RegEx?

by Thierry Goubier

The Regex engine inside SmaCC allows for non-greedy REs. But it's integrated as a parser first stage, not as an independent RE engine. Regards, Thierry Le mar. 5 fÃ©vr. 2019 Ã 08:34, Esteban Lorenzano <estebanlm(a)gmail.com> a Ã©crit : > > Hi, > > Yes, Pharo regex implementation is very naive. > We will be moving to a PCRE binding to match outside world standards but we have not had the time to work on it :( > > Esteban > > > On 5 Feb 2019, at 00:27, Manuel Leuenberger <leuenberger(a)inf.unibe.ch> wrote: > > > > Hi, > > > > I just noticed that the Pharo regexes do not understand non-greedy matches. A regex engine to be PCRE is kind of essential, not having '.*?' to be a parseable and working regex is a bummer. Are there any more powerful regex engines around for Pharo? I could not find any. > > > > Cheers, > > Manuel > > > > > >

Feb. 5, 2019

Re: [Pharo-users] Non-greedy RegEx?

by Esteban Lorenzano

Hi, Yes, Pharo regex implementation is very naive. We will be moving to a PCRE binding to match outside world standards but we have not had the time to work on it :( Esteban > On 5 Feb 2019, at 00:27, Manuel Leuenberger <leuenberger(a)inf.unibe.ch> wrote: > > Hi, > > I just noticed that the Pharo regexes do not understand non-greedy matches. A regex engine to be PCRE is kind of essential, not having '.*?' to be a parseable and working regex is a bummer. Are there any more powerful regex engines around for Pharo? I could not find any. > > Cheers, > Manuel > >

Feb. 5, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by magicspeller

Ben Coman wrote > On Mon, 4 Feb 2019 at 01:58, magicspeller < > pharo@ > > wrote: > >> I just discovered the window tabs >> at the bottom as well, which would have helped if I'd thought to look >> there. >> >> Hope I didn't cause anyone a lot of frustration. >> >> In a way, I am glad I posed the question, because I have learned a lot in >> the ensuing discussion. I'll respond to a couple of the new replies, but >> thank you, everyone, very, very much. >> > > How would you feel about stretching that learning to submit a PR > updating that text to indicate a window will open? Sorry, Ben, you lost me. What's a PR? Updated what text? Can you please give me an explanation an idiot (me) can understand? Thanks, Keith -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 5, 2019

Re: [Pharo-users] Github pharo-* organizations

by HernÃ¡n Morales Durand

Hi Pierce, I am currently writing a command-line tool which queries pharo repositories using the GitHub API, and based on the repository tag. Maybe not exactly what you asked for but it's a start. You can find the tool at: https://github.com/hernanmd/pi Cheers, HernÃ¡n El lun., 4 feb. 2019 a las 22:43, Pierce Ng (<pierce(a)samadhiweb.com>) escribiÃ³: > Hi all, > > Is there a definitive list of all the pharo-* organizations on GH? Like > pharo-rdbms, pharo-nosql, pharo-vcs, ... Or, a way to query GH to find out? > > Pierce > >

Feb. 5, 2019

Re: [Pharo-users] Github pharo-* organizations

by Esteban Maringolo

+1 to this question The "Pharoverse" is expanding faster every day. Esteban A. Maringolo El lun., 4 feb. 2019 a las 22:43, Pierce Ng (<pierce(a)samadhiweb.com>) escribiÃ³: > > Hi all, > > Is there a definitive list of all the pharo-* organizations on GH? Like > pharo-rdbms, pharo-nosql, pharo-vcs, ... Or, a way to query GH to find out? > > Pierce >

Feb. 5, 2019

Github pharo-* organizations

by Pierce Ng

Hi all, Is there a definitive list of all the pharo-* organizations on GH? Like pharo-rdbms, pharo-nosql, pharo-vcs, ... Or, a way to query GH to find out? Pierce

Feb. 5, 2019

Non-greedy RegEx?

by Manuel Leuenberger

Hi, I just noticed that the Pharo regexes do not understand non-greedy matches. A regex engine to be PCRE is kind of essential, not having '.*?' to be a parseable and working regex is a bummer. Are there any more powerful regex engines around for Pharo? I could not find any. Cheers, Manuel

Feb. 4, 2019

Re: [Pharo-users] Running test

by HernÃ¡n Morales Durand

Windows 8.1 is ok Cheers, HernÃ¡n El lun., 4 feb. 2019 a las 18:46, Hilaire (<hilaire(a)drgeo.eu>) escribiÃ³: > Hi, > > I need some testing on Mac OS and Windows, Linux should be fine, of a > new bundle for drgeo. > > It is there > https://www.dropbox.com/s/z2acnw1yi77q4ps/DrGeo.app-19.03a.zip?dl=0 > > I just need to know if it running or not. > > Thanks > > Hilaire > > -- > Dr. Geo > http://drgeo.eu > > > >

Feb. 4, 2019

Running test

by Hilaire

Hi, I need some testing on Mac OS and Windows, Linux should be fine, of a new bundle for drgeo. It is there https://www.dropbox.com/s/z2acnw1yi77q4ps/DrGeo.app-19.03a.zip?dl=0 I just need to know if it running or not. Thanks Hilaire -- Dr. Geo http://drgeo.eu

Feb. 4, 2019

Re: [Pharo-users] Slots doc

by webwarrior

Vitor Medina Cruz wrote > Thanks, I had already read this paper, which got me interested in the > concept of slots :) . Is it a prototype in Pharo or is ready to use? it > will become as an official part of it? > > > On Sun, Feb 3, 2019 at 10:13 AM Ben Coman < > btc@ > > wrote: > >> >> >> On Sun, 3 Feb 2019 at 17:50, Todd Blanchard via Pharo-users < >> > pharo-users@.pharo >> wrote: >> >>> Seems like an opportunity...I have no idea what the addition of slots >>> does but I would like to learn. >>> >>> On Feb 3, 2019, at 1:33 AM, ducasse < > stepharo@ > > wrote: >>> >>> Hello, >>> >>> Where I can find documentation for slots? >>> >>> I am trying to access the pharo books site but it is unreachable from my >>> network right now, I got a connection time out (It works from my 3G >>> though >>> (??) ), but if I remember correctly the is no slot description in any >>> book. >>> >>> Regards, >>> Vitor >>> >>> >>> Hello victor >>> >>> There is no documentation about slots that I know. Iâm sorry. >>> Marcus may want to write one in the future. >>> >>> Stef >>> >>> >> I believe its an implementation of this paper... >> >> https://rmod.inria.fr/archives/papers/Verw11a-OOSPLA11-FlexibleObjectLayout… >> >> >> cheers -ben >> Slots are already part of Pharo and are totally useable. Some example slots are buggy though. Explore Slot and subclasses, their class comments and methods. One thing to note is if you change #emitStore: or #emitValue: methods in your slot class, you need to trigger change in classes that use it. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 4, 2019

Re: [Pharo-users] Slots doc

by Esteban Lorenzano

> On 4 Feb 2019, at 20:11, Vitor Medina Cruz <vitormcruz(a)gmail.com> wrote: > > Thanks, I had already read this paper, which got me interested in the concept of slots :) . Is it a prototype in Pharo or is ready to use? it will become as an official part of it? Is ready, is official, is there :) Esteban > > > On Sun, Feb 3, 2019 at 10:13 AM Ben Coman <btc(a)openinworld.com <mailto:btc@openinworld.com>> wrote: > > > On Sun, 3 Feb 2019 at 17:50, Todd Blanchard via Pharo-users <pharo-users(a)lists.pharo.org <mailto:pharo-users@lists.pharo.org>> wrote: > Seems like an opportunity...I have no idea what the addition of slots does but I would like to learn. > >> On Feb 3, 2019, at 1:33 AM, ducasse <stepharo(a)netcourrier.com <mailto:stepharo@netcourrier.com>> wrote: >> >>> Hello, >>> >>> Where I can find documentation for slots? >>> >>> I am trying to access the pharo books site but it is unreachable from my >>> network right now, I got a connection time out (It works from my 3G though >>> (??) ), but if I remember correctly the is no slot description in any book. >>> >>> Regards, >>> Vitor >> >> Hello victor >> >> There is no documentation about slots that I know. Iâm sorry. >> Marcus may want to write one in the future. >> >> Stef > > > I believe its an implementation of this paper... > https://rmod.inria.fr/archives/papers/Verw11a-OOSPLA11-FlexibleObjectLayout… <https://rmod.inria.fr/archives/papers/Verw11a-OOSPLA11-FlexibleObjectLayout…> > > cheers -ben

Feb. 4, 2019

Re: [Pharo-users] Slots doc

by Vitor Medina Cruz

Thanks, I had already read this paper, which got me interested in the concept of slots :) . Is it a prototype in Pharo or is ready to use? it will become as an official part of it? On Sun, Feb 3, 2019 at 10:13 AM Ben Coman <btc(a)openinworld.com> wrote: > > > On Sun, 3 Feb 2019 at 17:50, Todd Blanchard via Pharo-users < > pharo-users(a)lists.pharo.org> wrote: > >> Seems like an opportunity...I have no idea what the addition of slots >> does but I would like to learn. >> >> On Feb 3, 2019, at 1:33 AM, ducasse <stepharo(a)netcourrier.com> wrote: >> >> Hello, >> >> Where I can find documentation for slots? >> >> I am trying to access the pharo books site but it is unreachable from my >> network right now, I got a connection time out (It works from my 3G though >> (??) ), but if I remember correctly the is no slot description in any book. >> >> Regards, >> Vitor >> >> >> Hello victor >> >> There is no documentation about slots that I know. Iâm sorry. >> Marcus may want to write one in the future. >> >> Stef >> >> > I believe its an implementation of this paper... > > https://rmod.inria.fr/archives/papers/Verw11a-OOSPLA11-FlexibleObjectLayout… > > > cheers -ben >

Feb. 4, 2019

Re: [Pharo-users] why doesn't this baseline load any package when included in another baseline?

by Paul DeBruicker

There's already an issue on GH. So thats good. https://github.com/Metacello/metacello/issues/400 Paul DeBruicker wrote > Thanks Pierce > > Turns out my problem seems to have been from using a #cacheRepository: > send > in the Metacello load instruction. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 4, 2019

Re: [Pharo-users] Pharo 7 - how to see method author/timestamp n Calypso?

by Esteban Lorenzano

> On 4 Feb 2019, at 16:02, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > Hi > > > > > EstebanLM wrote >> >>> Without >>> having to do anything by hand when a package is loaded, I mean. And >>> also a >>> way to see that info right next to the code pane without having to click >>> anything? Also hopefully senders/implementors count? >> >> Uhm? >> I do not understand thisâ¦ but I think is not related to iceberg but >> calypso, isnât? >> If is calypso, and what you ask is to have the references available (for >> example in another tab) this is not there but is easy to implement. In >> fact, I remember an iteration of calypso that had them, and I think the >> reason while is gone is that It becomes kind of a pain in large images >> (but now we have real lazy tabs so we could review that decision). > > Yeah you're right. Calypso. MY reading of Cyril's response made me think > it was a calypso/iceberg integration I'd have to do/set-up manually for > every package rather than something automatically handled when a package is > loaded into the image. > > > In Nautilus there was the AnnotationPanePlugin that showed > author/timestamp/sender count/implementer count without any intervention on > my part. See attached from Pharo 6. Once you turned the > AnnotationPanePlugin on in any nautilus browser it was on in all the > browsers you create in the future. Omnibrowser did it automatically IIRC. > > > Just wondering if there is something like that already in Pharo 7 or if not > how to get it in Calypso. Ah yes, but it was not default nor widely used (in fact, you are the first one I understand it was using it). And no, there is nothing like that in Calypso for the moment (doable, but not there) Esteban > > > > Paul > > Nautilus_with_annotation_pane.png > <http://forum.world.st/file/t94460/Nautilus_with_annotation_pane.png> > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 4, 2019

Re: [Pharo-users] Pharo 7 - how to see method author/timestamp n Calypso?

by Paul DeBruicker

Hi EstebanLM wrote > >> Without >> having to do anything by hand when a package is loaded, I mean. And >> also a >> way to see that info right next to the code pane without having to click >> anything? Also hopefully senders/implementors count? > > Uhm? > I do not understand thisâ¦ but I think is not related to iceberg but > calypso, isnât? > If is calypso, and what you ask is to have the references available (for > example in another tab) this is not there but is easy to implement. In > fact, I remember an iteration of calypso that had them, and I think the > reason while is gone is that It becomes kind of a pain in large images > (but now we have real lazy tabs so we could review that decision). Yeah you're right. Calypso. MY reading of Cyril's response made me think it was a calypso/iceberg integration I'd have to do/set-up manually for every package rather than something automatically handled when a package is loaded into the image. In Nautilus there was the AnnotationPanePlugin that showed author/timestamp/sender count/implementer count without any intervention on my part. See attached from Pharo 6. Once you turned the AnnotationPanePlugin on in any nautilus browser it was on in all the browsers you create in the future. Omnibrowser did it automatically IIRC. Just wondering if there is something like that already in Pharo 7 or if not how to get it in Calypso. Paul Nautilus_with_annotation_pane.png <http://forum.world.st/file/t94460/Nautilus_with_annotation_pane.png> -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 4, 2019

Re: [Pharo-users] why doesn't this baseline load any package when included in another baseline?

by Paul DeBruicker

Thanks Pierce Turns out my problem seems to have been from using a #cacheRepository: send in the Metacello load instruction. e.g. when I do a Metacello new baseline:'MyProject'; repository:'/my/path/'; cacheRepository: '/my/cache'; load Then the packages aren't loaded but if I do a Metacello new baseline:'MyProject'; repository:'/my/path/'; load then everything is loaded. The cache directory already has the packages in it, from another load into another image in pharo 6. So I'll try to learn what that cacheRepository: send is doing that I don't expect. thanks for looking into this. Paul Pierce Ng-3 wrote > On Sun, Feb 03, 2019 at 01:41:30PM -0800, PAUL DEBRUICKER wrote: >> MCHttpRepository >> location: 'http://www.squeaksource.com/TimeZoneDatabase' > > Hi Paul, > > I see that there is a ConfigurationOfTimeZoneDatabase in the SS repo as > well. > >> spec baseline: 'TimeZoneDatabase' >> with: [ spec repository: >> 'http://www.squeaksource.com/TimeZoneDatabase' ]. > > In your BaselineOfYourProject that is citing TimeZoneDatabase as a > dependency, you could try loading ConfigOfTimeZoneDatabase instead: > > spec project: 'TimeZoneDatabase' with: [ > spec > className: 'ConfigurationOfTimeZoneDatabase'; > version: #stable; > repository: 'http://www.squeaksource.com/TimeZoneDatabase' ]. > > This is known working in my BaselineOfGlorpSQLite which loads > ConfigurationOfUDBC > from STH. > > Pierce -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 4, 2019

Re: [Pharo-users] Pharo MOOC 7.0 image

by eftomi

OK, I successfully loaded Seaside, Bootstrap and Magritte into Pharo 7.0.1 (32 and 64 bit) on Win10. If anybody needs the 'how-to', here's what I did: - Install stable version of Magritte3 from Catalog Browser (marked as Pharo 7.0 compatible) - Install stable version of Bootstrap from Catalog Browser (marked as Pharo 7.0 compatible) Bootstrap project includes Seaside and it takes a couple of minutes to load. The load order - firstly Magritte3 and then Bootstrap - is important, otherwise I am getting this error: Loading 3.5.1 of ConfigurationOfMagritte3...MetacelloConflictingProjectError: Load Conflict between existing BaselineOfGrease [baseline] from github://SeasideSt/Grease:master/repository and ConfigurationOfGrease release1.2 from http://smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main Sometimes, the Bootstrap / Seaside project leads to an error message from Iceberg saying that the path/file name is too long. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 4, 2019

Re: [Pharo-users] Slots docs?

by Marcus Denker

> On 1 Feb 2019, at 14:16, Vitor Medina Cruz <vitormcruz(a)gmail.com> wrote: > > Hello, > > Where I can find documentation for slots? > Sadly notâ¦ It is on the todo for far too long. I will put it on higher priority and hope to have some documentation soon. Marcus

Feb. 4, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Ben Coman

On Mon, 4 Feb 2019 at 01:58, magicspeller <pharo(a)magicspeller.info> wrote: > Ben Coman wrote > > On Sun, 3 Feb 2019 at 19:54, Sven Van Caekenberghe < > > > sven@ > > > > wrote: > >> > >> You are on Windows, are there any other Windows users that can confirm > >> this either way ? > >> > > > > On Win 10 and this works for me in both 32-bit and 64-bit Pharo 7.0.1 > > (build: 146, commit: c48755a) > > 64-bit VM: 201901051900 > > https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Sat Jan 5 > > 20:00:11 2019 CommitHash: 7a3c6b6 Plugins: 201901051900 > > > > cheers -ben > > Thanks, everyone. I think I owe you all an apology. I just tried the 64-bit > version again and it worked perfectly. > If you hare learning and having fun, thats good with me. > > The instructions just say, "You can learn Pharo by clicking on the > following > expression:". I didn't expect a new window to open; I had just finished a > different Pharo course in which everything stayed in the same window. You'd > think I would see a new window opening anyway, but I'm wondering if it > might > have been hidden behind the main window. Its exactly this sort of little niggle that adepts just fly by without noticing. Fresh eyes are really important. I just discovered the window tabs > at the bottom as well, which would have helped if I'd thought to look > there. > > Hope I didn't cause anyone a lot of frustration. > > In a way, I am glad I posed the question, because I have learned a lot in > the ensuing discussion. I'll respond to a couple of the new replies, but > thank you, everyone, very, very much. > How would you feel about stretching that learning to submit a PR updating that text to indicate a window will open? cheers -ben > > Warren > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Feb. 4, 2019

Re: [Pharo-users] Pharo 7 - how to see method author/timestamp n Calypso?

by Esteban Lorenzano

Hi, > On 4 Feb 2019, at 05:29, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > > Thanks Cyril. > > For those projects I don't own/maintain that are stored in MCZ files is > there a way to see who authored the method? Or is Iceberg + git-blame the > only way to go now? Those will show the ts/author as before. > > > If git-blame is the only way is there a way to have all the repos an image > uses brought under git so I can git-blame everything automatically? Answered below :) > Without > having to do anything by hand when a package is loaded, I mean. And also a > way to see that info right next to the code pane without having to click > anything? Also hopefully senders/implementors count? Uhm? I do not understand thisâ¦ but I think is not related to iceberg but calypso, isnât? If is calypso, and what you ask is to have the references available (for example in another tab) this is not there but is easy to implement. In fact, I remember an iteration of calypso that had them, and I think the reason while is gone is that It becomes kind of a pain in large images (but now we have real lazy tabs so we could review that decision). > When I read code I skim code written by other people (especially people with > more experience with the domain, like your MDL package) and assume it's more > correct because they've published it. And more critically review what I've > written in/against those packages. > > > Without the author and timestamp visible next to the method code pane it is > harder to know whether I should trust or be more skeptical of the method. In Pharo this was always after a click. It is still now always after a click. > I don't always remember which parts I wrote and which parts someone else > wrote. Same. A click will tell you :) Esteban > > > Paul > > > > CyrilFerlicot wrote >> On Sun 3 Feb 2019 at 22:02, PAUL DEBRUICKER < > >> pdebruic@ > >> > wrote: >> >>> Hi - >>> >>> >>> How can I see who wrote a method and when they wrote it in Calypso? >> >> >> Hello, >> >> You need to add Calypso to Iceberg and have a locale clone linked. Then an >> Â« history Â» button will appear in Calypso whose info are extracted via git >> blame feature of git. >> >> >>> >>> In Nautilus it was the AnnotationPane plugin IIRC. >>> >>> Thanks >>> >>> Paul >>> >>> -- >> Cyril Ferlicot >> https://ferlicot.fr > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html <http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html>

Feb. 4, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by john pfersich

On a Win 10 Lenovo laptop with a trackpad with no mouse buttons, the 64-bit version took several clicks on âProfStef goâ to register. I suspect it might be the trackpad which isnât sending mouse messages correctly because I also have problems with other apps. /*âââââââââââââââââ-*/ Sent from my iPhone https://boincstats.com/signature/-1/user/51616339056/sig.png See https://objectnets.net and https://objectnets.org > On Feb 3, 2019, at 04:25, Ben Coman <btc(a)openinworld.com> wrote: > > > >> On Sun, 3 Feb 2019 at 19:54, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> Hi, >> >> It would also be quite surprising if this depended on the 32/64 bits difference. >> >> In any case it works for me (macOS 64 bit): it opens a window titled 'Welcome (1/29)' containing step one of the tutorial: >> >> === >> "Hello! I'm Professor Stef. >> >> You must want me to help you learn Pharo. >> >> So let's go to the first lesson. Select the text below, right-click and choose 'Do it'" >> >> ProfStef next. >> === >> >> You are on Windows, are there any other Windows users that can confirm this either way ? > > On Win 10 and this works for me in both 32-bit and 64-bit Pharo 7.0.1 (build: 146, commit: c48755a) > 64-bit VM: 201901051900 https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Sat Jan 5 20:00:11 2019 CommitHash: 7a3c6b6 Plugins: 201901051900 > > cheers -ben

Feb. 4, 2019

Re: [Pharo-users] Pharo 7 - how to see method author/timestamp n Calypso?

by Paul DeBruicker

Thanks Cyril. For those projects I don't own/maintain that are stored in MCZ files is there a way to see who authored the method? Or is Iceberg + git-blame the only way to go now? If git-blame is the only way is there a way to have all the repos an image uses brought under git so I can git-blame everything automatically? Without having to do anything by hand when a package is loaded, I mean. And also a way to see that info right next to the code pane without having to click anything? Also hopefully senders/implementors count? When I read code I skim code written by other people (especially people with more experience with the domain, like your MDL package) and assume it's more correct because they've published it. And more critically review what I've written in/against those packages. Without the author and timestamp visible next to the method code pane it is harder to know whether I should trust or be more skeptical of the method. I don't always remember which parts I wrote and which parts someone else wrote. Paul CyrilFerlicot wrote > On Sun 3 Feb 2019 at 22:02, PAUL DEBRUICKER < > pdebruic@ > > wrote: > >> Hi - >> >> >> How can I see who wrote a method and when they wrote it in Calypso? > > > Hello, > > You need to add Calypso to Iceberg and have a locale clone linked. Then an > Â« history Â» button will appear in Calypso whose info are extracted via git > blame feature of git. > > >> >> In Nautilus it was the AnnotationPane plugin IIRC. >> >> Thanks >> >> Paul >> >> -- > Cyril Ferlicot > https://ferlicot.fr -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 4, 2019

Re: [Pharo-users] why doesn't this baseline load any package when included in another baseline?

by Pierce Ng

On Sun, Feb 03, 2019 at 01:41:30PM -0800, PAUL DEBRUICKER wrote: > MCHttpRepository > location: 'http://www.squeaksource.com/TimeZoneDatabase' Hi Paul, I see that there is a ConfigurationOfTimeZoneDatabase in the SS repo as well. > spec baseline: 'TimeZoneDatabase' > with: [ spec repository: 'http://www.squeaksource.com/TimeZoneDatabase' ]. In your BaselineOfYourProject that is citing TimeZoneDatabase as a dependency, you could try loading ConfigOfTimeZoneDatabase instead: spec project: 'TimeZoneDatabase' with: [ spec className: 'ConfigurationOfTimeZoneDatabase'; version: #stable; repository: 'http://www.squeaksource.com/TimeZoneDatabase' ]. This is known working in my BaselineOfGlorpSQLite which loads ConfigurationOfUDBC from STH. Pierce

Feb. 4, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by pharo＠magicspeller.info

On 2/3/2019 1:35 PM, Richard70nl wrote: > I just checked, the "right click -> do it" only works if at least the > cursor is somewhere on the statement. I normally do a cmd-D (macOS) in > these situations though. But AFAIK itâs not necessary to select the > whole statement. If the cursor is somewhere else in the editor the > âright click -> do itâ does not work as expected. I think the editor > should maybe put the cursor in the position where you right click. But > that is more of a preference. I think if you get used to that > behaviour then you probably donât even think about it. > > Coming from most common coding editors, I find the editors in Pharo a > bit quirky. But I (we?) probably get used to it. I did check online > how some people use external editors and I think itâs not worth the > hassle. Itâs not as straightforward programming as Iâm used to. And, I > think if you use an external editor you miss the âimmersionâ of the > environment. Thanks, Richard!

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by pharo＠magicspeller.info

On 2/3/2019 5:01 AM, Ben Coman wrote: > In general you are correct, but newcomers are more familiar with a > click paradigm that a select &doIt paradigm > so this specific case is different.Â In the interest of teaching how > to fish :), here is how you can discover these sorts of answers for > yourself... > Tools > Finder > Source > then search for... ProfStef go > and you'll see...Â WelcomeHelp-class>>learn > which does...Â Â (self doItFrom: 'ProfStef go.') > Double-clicking "doItFrom:" selects it, then hitting <Ctrl-M> does > "Code search... > implementors of it" > that is commented...Â [left as an exercise for the reader] Thank you. That's really helpful! Keith

Feb. 3, 2019

Re: [Pharo-users] Pharo 7 - how to see method author/timestamp n Calypso?

by Cyril Ferlicot

On Sun 3 Feb 2019 at 22:02, PAUL DEBRUICKER <pdebruic(a)gmail.com> wrote: > Hi - > > > How can I see who wrote a method and when they wrote it in Calypso? Hello, You need to add Calypso to Iceberg and have a locale clone linked. Then an Â« history Â» button will appear in Calypso whose info are extracted via git blame feature of git. > > In Nautilus it was the AnnotationPane plugin IIRC. > > Thanks > > Paul > > -- Cyril Ferlicot https://ferlicot.fr

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by pharo＠magicspeller.info

On 2/3/2019 2:48 AM, ducasse wrote: > > Hi keith > > did you look at the Pharo mooc? > http://mooc.pharo.org > > Because there are many videos explaining interaction. No, I've been to the site but haven't gotten around to looking at much there. I will now, thanks. It's good to know about the videos. > > To execute an expression you should either select or if it is on one line > you can just use command-D or command-P > Learning this is a big revelation. In the course I took, I had to select a command on *every single page* and then enter Ctrl-D. It got to be really tiring and frustrating. I just went back to the course and tried just left clicking on the command before entering Ctrl-D and discovered that it works there as well. Wish I'd known it when I started the course. Thanks very much, Keith

Feb. 3, 2019

why doesn't this baseline load any package when included in another baseline?

by PAUL DEBRUICKER

Hi - In this repo MCHttpRepository location: 'http://www.squeaksource.com/TimeZoneDatabase' user: '' password: '' There is the BaselineOfTimeZoneDatabase If in a Pharo7 playground I run Metacello new baseline: 'TimeZoneDatabase'; repository: 'http://www.squeaksource.com/TimeZoneDatabase'; load It loads into the image fine and seems to work. If I include it in another project like this ... spec baseline: 'TimeZoneDatabase' with: [ spec repository: 'http://www.squeaksource.com/TimeZoneDatabase' ]. spec package: 'MyPackage' with:[ spec requires: #('DependencyA' 'DependencyB' 'DependencyC' 'DependencyD' 'TimeZoneDatabase')] spec group:'default' with:'MyPackage'. and load that project into a different, clean Pharo 7 image with Metacello new baseline: 'MyProject'; repository: '/my/pharo/packages/'; load: 'default' Then none of the TimeZoneDatabase packages are loaded and only the postLoadDoIt from the BaselineOfTimeZoneDatabase is called. (The other dependencies aren't loaded either but I figured to just use this TimeZoneDatabase as an example for this email). In the BaselineOfTimeZoneDatabase the #baseline: method is baseline: spec <baseline> spec for: #common do: [ spec postLoadDoIt: #buildSystemDatabase. spec package: 'Time'. spec group: 'Core' with: #('default') ]. spec for: #squeak do: [ spec package: 'TimeZoneDatabase-Squeak' with: [ spec requires: #('Time') ]. spec group: 'default' with: #('TimeZoneDatabase-Squeak') ]. spec for: #pharo do: [ spec package: 'TimeZoneDatabasePharoPreload'; package: 'Time' with: [ spec requires: #('TimeZoneDatabasePharoPreload') ]; package: 'TimeZoneDatabase-Pharo' with: [ spec requires: #('Time') ]. spec group: 'default' with: #('TimeZoneDatabase-Pharo') ] I'm clearly doing something wrong but don't know what. Any ideas on what to change or try next? Thanks Paul

Feb. 3, 2019

Pharo 7 - how to see method author/timestamp n Calypso?

by PAUL DEBRUICKER

Hi - How can I see who wrote a method and when they wrote it in Calypso? In Nautilus it was the AnnotationPane plugin IIRC. Thanks Paul

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Richard70nl

Feb. 3, 2019

package extensions in Pharo 7.

by PAUL DEBRUICKER

Hi - Is there a way to create the protocol, then convert it to an extension, without adding a method to it between the time I create the protocol and convert it to an extension? Seems like it if the protocol is empty when I convert it to an extension it gets deleted rather than converted. Would anyone be interested in having the thing that parses protocol names automatically create extension protocols from names that start with * instead of rejecting them immediately? IS the new extension stuff cross platform compatible right now or do I have to do anything else to port these methods & protocols to Squeak and GemStone? Thanks Paul

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Sven Van Caekenberghe

> On 3 Feb 2019, at 18:57, magicspeller <pharo(a)magicspeller.info> wrote: > > Ben Coman wrote >> On Sun, 3 Feb 2019 at 19:54, Sven Van Caekenberghe < > >> sven@ > >> > wrote: >>> >>> You are on Windows, are there any other Windows users that can confirm >>> this either way ? >>> >> >> On Win 10 and this works for me in both 32-bit and 64-bit Pharo 7.0.1 >> (build: 146, commit: c48755a) >> 64-bit VM: 201901051900 >> https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Sat Jan 5 >> 20:00:11 2019 CommitHash: 7a3c6b6 Plugins: 201901051900 >> >> cheers -ben > > Thanks, everyone. I think I owe you all an apology. I just tried the 64-bit > version again and it worked perfectly. > > The instructions just say, "You can learn Pharo by clicking on the following > expression:". I didn't expect a new window to open; I had just finished a > different Pharo course in which everything stayed in the same window. You'd > think I would see a new window opening anyway, but I'm wondering if it might > have been hidden behind the main window. I just discovered the window tabs > at the bottom as well, which would have helped if I'd thought to look there. > > Hope I didn't cause anyone a lot of frustration. > > In a way, I am glad I posed the question, because I have learned a lot in > the ensuing discussion. I'll respond to a couple of the new replies, but > thank you, everyone, very, very much. > > Warren No problem, good luck with your further explorations, welcome to Pharo. Sven

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by magicspeller

Ben Coman wrote > On Sun, 3 Feb 2019 at 19:54, Sven Van Caekenberghe < > sven@ > > wrote: >> >> You are on Windows, are there any other Windows users that can confirm >> this either way ? >> > > On Win 10 and this works for me in both 32-bit and 64-bit Pharo 7.0.1 > (build: 146, commit: c48755a) > 64-bit VM: 201901051900 > https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Sat Jan 5 > 20:00:11 2019 CommitHash: 7a3c6b6 Plugins: 201901051900 > > cheers -ben Thanks, everyone. I think I owe you all an apology. I just tried the 64-bit version again and it worked perfectly. The instructions just say, "You can learn Pharo by clicking on the following expression:". I didn't expect a new window to open; I had just finished a different Pharo course in which everything stayed in the same window. You'd think I would see a new window opening anyway, but I'm wondering if it might have been hidden behind the main window. I just discovered the window tabs at the bottom as well, which would have helped if I'd thought to look there. Hope I didn't cause anyone a lot of frustration. In a way, I am glad I posed the question, because I have learned a lot in the ensuing discussion. I'll respond to a couple of the new replies, but thank you, everyone, very, very much. Warren -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 3, 2019

Pharo MOOC 7.0 image

by eftomi

Did someone compile a 7.0 MOOC image yet? Seaside is easy to load, however I got stuck with various packages of Bootstrap / Magritte. When I try to load these either through Metacello, Catalog Browser and through Iceberg there's no success. Catalog Browser usually gives an error message in the status area. QCMagritte seems quite useful and is marked as 7.0 compatible in Catalog Browser. The procedure on Github: Metacello new githubUser: 'Afibre' project: 'QCMagritte' commitish: 'master' path: 'src'; baseline: 'QCMagritte'; load. runs ok, however the majority of Seaside tests are then yellow, some red. As you see, I'm mostly interested in web development :-) -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by eftomi

Just clicking onto ProfStef Go. works for me on both, too. Win 10, Pharo-7.0.1+build.146, VM: 201901051900 https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Sat Jan 5 20:00:11 2019 CommitHash: 7a3c6b6 Plugins: 201901051900 -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Sean P. DeNigris

Tim Mackinnon wrote > doit or printit should find the nearest complete expression (even if > multiline) and evaluate that That would be great! ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Ben Coman

On Sun, 3 Feb 2019 at 19:54, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Hi, > > It would also be quite surprising if this depended on the 32/64 bits > difference. > > In any case it works for me (macOS 64 bit): it opens a window titled > 'Welcome (1/29)' containing step one of the tutorial: > > === > "Hello! I'm Professor Stef. > > You must want me to help you learn Pharo. > > So let's go to the first lesson. Select the text below, right-click and > choose 'Do it'" > > ProfStef next. > === > > You are on Windows, are there any other Windows users that can confirm > this either way ? > On Win 10 and this works for me in both 32-bit and 64-bit Pharo 7.0.1 (build: 146, commit: c48755a) 64-bit VM: 201901051900 https://github.com/OpenSmalltalk/opensmalltalk-vm.git Date: Sat Jan 5 20:00:11 2019 CommitHash: 7a3c6b6 Plugins: 201901051900 cheers -ben

Feb. 3, 2019

Re: [Pharo-users] Slots doc

by Ben Coman

On Sun, 3 Feb 2019 at 17:50, Todd Blanchard via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Seems like an opportunity...I have no idea what the addition of slots does > but I would like to learn. > > On Feb 3, 2019, at 1:33 AM, ducasse <stepharo(a)netcourrier.com> wrote: > > Hello, > > Where I can find documentation for slots? > > I am trying to access the pharo books site but it is unreachable from my > network right now, I got a connection time out (It works from my 3G though > (??) ), but if I remember correctly the is no slot description in any book. > > Regards, > Vitor > > > Hello victor > > There is no documentation about slots that I know. Iâm sorry. > Marcus may want to write one in the future. > > Stef > > I believe its an implementation of this paper... https://rmod.inria.fr/archives/papers/Verw11a-OOSPLA11-FlexibleObjectLayout… cheers -ben

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Ben Coman

On Sun, 3 Feb 2019 at 08:31, magicspeller <pharo(a)magicspeller.info> wrote: > > Can you tell me why you don't have to select "ProfStef go." before right > clicking it. I had gotten the impression that to execute any Smalltalk > statement you always have to select it first. > In general you are correct, but newcomers are more familiar with a click paradigm that a select &doIt paradigm so this specific case is different. In the interest of teaching how to fish :), here is how you can discover these sorts of answers for yourself... Tools > Finder > Source then search for... ProfStef go and you'll see... WelcomeHelp-class>>learn which does... (self doItFrom: 'ProfStef go.') Double-clicking "doItFrom:" selects it, then hitting <Ctrl-M> does "Code search... > implementors of it" that is commented... [left as an exercise for the reader] cheers -ben

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Sven Van Caekenberghe

Hi, I want to come back to the original issue reported. To be clear, you report that in the following screen: Clicking on the blue links like http://mooc.pharo.org or http://books.pharo.org works, but clicking the purple 'ProfStef do.' does not ? That would be very surprising, as internally, I think the mechanism behind the handling of the mouse click in the text and then doing something is the same. It would also be quite surprising if this depended on the 32/64 bits difference. In any case it works for me (macOS 64 bit): it opens a window titled 'Welcome (1/29)' containing step one of the tutorial: === "Hello! I'm Professor Stef. You must want me to help you learn Pharo. So let's go to the first lesson. Select the text below, right-click and choose 'Do it'" ProfStef next. === You are on Windows, are there any other Windows users that can confirm this either way ? Sven > On 2 Feb 2019, at 08:34, magicspeller <pharo(a)magicspeller.info> wrote: > > Hi, everyone. > > I'm an absolute newbie to Pharo, and to Smalltalk, and I'm trying to learn. > I just installed Pharo 7.0.1 (on Windows 10) and I immediately got stuck. > > I selected "Learn Pharo" in the outline, and it gave me a screen saying: > > You can learn Pharo by clicking on the following expression: > > ProfStef go. > > I clicked on ProfStef go and nothing happened. There are three URL links on > the same page that work like they're supposed to, but no matter how many > times I try, clicking on ProfStef go appears to do nothing at all. > > Am I misunderstanding what I'm supposed to do or what's supposed to happen? > > Thanks a lot for your help. > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Tim Mackinnon

Sent from my iPhone > On 3 Feb 2019, at 09:56, ducasse <stepharo(a)netcourrier.com> wrote: > > Now what frustrates me is that Command-B does not automatically select the line. But why would you arbitrarily highlight a line? I was frustrated that with my cursor on a valid selector (or class, or parameter), selecting the whole line often resulted in an error? Or are you simply suggesting that it should highlight the expression itâs identified before doing the evaluation? I didnât think of that, and itâs a good idea. To be clearer - in a playground if you had: 5 + 4. âHelloâ size + 5 (cursor here) What should meta-p do? I would argue - print 10 not give an error? This feels more in line with power of our tools right? Tim

Feb. 3, 2019

Re: [Pharo-users] PharoV50.sources in VM?

by Hilaire

Don't forget, the dll can be stripped too ! I saved about 10MB on Dr. Geo bundle with Linux and Windows VMs stripped. I don't know about Mac OS libraries and excutable, I don't search for tools to remove its symboles from a Linux workstation. Hilaire Le 03/02/2019 Ã 01:34, Pierce Ng a Ã©critÂ : > I just built the 32-bit Windows VM from opensmalltalk-vm on Windows 7. > Here's what I got. Pharo.exe works fine. > > Volume in drive C has no label. > Volume Serial Number is FCE0-E161 > > Directory of C:\pkg\pharo6vm32 > > 03/02/2019 12:54 AM 2,875,628 Pharo.exe > 03/02/2019 12:54 AM 2,875,628 PharoConsole.exe > 03/02/2019 12:54 AM 9,567,149 PharoConsoleUnstripped.exe > 03/02/2019 12:54 AM 9,567,149 PharoUnstripped.exe > 4 File(s) 24,885,554 bytes > 0 Dir(s) 33,491,107,840 bytes free > > I think the stripping comes from build.win32x86/common/Makefile starting > line 309: > > ifneq ($STRIPEXE,) > $(STRIPEXE): $(VMEXE) > $(STRIP) --strip-unneeded -o $(STRIPEXE) $(VMEXE) > $(OBJCOPY) --add-gnu-debuglink=$(VMEXE) $(STRIPEXE) > > $(STRIPCONSOLEEXE): $(CONSOLEVMEXE) > $(STRIP) --strip-unneeded -o $(STRIPCONSOLEEXE) $(CONSOLEVMEXE) > $(OBJCOPY) --add-gnu-debuglink=$(CONSOLEVMEXE) $(STRIPCONSOLEEXE) > endif > > The build output is in build.win32x86/pharo.cog.spur/build/vm. I copied > the *exe and *.dll into c:\pkg\pharo6vm32 and run the VM from there. > > Oh, my Linux VM (also self-built) isn't stripped. > > % file ~/pkg/pharo6vm64/pharo > /home/pierce/pkg/pharo6vm64/pharo: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=79f0524e9ecda9a3a3143fb6ba4ff45f552e05dd, with debug_info, not stripped > -- Dr. Geo http://drgeo.eu

Feb. 3, 2019

Learn Pharo - Not Working

by ducasse

> Sent from my iPhone > > On 3 Feb 2019, at 02:42, Sean P. DeNigris <sean at clipperadams.com <http://lists.pharo.org/mailman/listinfo/pharo-users_lists.pharo.org>> wrote: > > > > believe the default is to evaluate the whole line where the cursor is if > > nothing is selected. > > That reminds me - while I fixed the senders/implementers search commands to intelligently look for the nearest selector to the cursor (in pharo7), I forgot about workspace evaluation - doit or printit should find the nearest complete expression (even if multiline) and evaluate that - unless you specifically highlight something. It makes it much more efficient to then examine things quickly. > > Tim I like the way is work now because I can super execute one line or multiple line. Now what frustrates me is that Command-B does not automatically select the line. I always wanted that Command-B looks for implementors when the symbol is not a class (if it is a class we get the class definition) Command-M when the symbol is a class should do a Command-B else a look for implementors I think that now denis reintroduced the behavior I added long time ago and that was removed. The glitch left is the missing automatic selection of the line :) Stef

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by john pfersich

Heâs on Windows, so it wold be Ctrl-D and Ctrl-P. /*âââââââââââââââââ-*/ Sent from my iPhone https://boincstats.com/signature/-1/user/51616339056/sig.png See https://objectnets.net and https://objectnets.org > On Feb 3, 2019, at 01:48, ducasse <stepharo(a)netcourrier.com> wrote: > > Hi keith > > did you look at the Pharo mooc? > http://mooc.pharo.org > > Because there are many videos explaining interaction. > > To execute an expression you should either select or if it is on one line > you can just use command-D or command-P > > Stef

Feb. 3, 2019

favorite way to migrate from mczs to git?

by ducasse

Hi Paul When you commit your changes to your fork you can cherry pick what you want to save. On the left you have a item list with tick and you can untick them. Only the selected items will be committed. Let us know if this is not working for you. Stef

Feb. 3, 2019

Re: [Pharo-users] Slots doc

by Todd Blanchard

Seems like an opportunity...I have no idea what the addition of slots does but I would like to learn. > On Feb 3, 2019, at 1:33 AM, ducasse <stepharo(a)netcourrier.com> wrote: > >> Hello, >> >> Where I can find documentation for slots? >> >> I am trying to access the pharo books site but it is unreachable from my >> network right now, I got a connection time out (It works from my 3G though >> (??) ), but if I remember correctly the is no slot description in any book. >> >> Regards, >> Vitor > > Hello victor > > There is no documentation about slots that I know. Iâm sorry. > Marcus may want to write one in the future. > > Stef >

Feb. 3, 2019

Learn Pharo - Not Working

by ducasse

Hi keith did you look at the Pharo mooc? http://mooc.pharo.org <http://mooc.pharo.org/> Because there are many videos explaining interaction. To execute an expression you should either select or if it is on one line you can just use command-D or command-P Stef

Feb. 3, 2019

Slots doc

by ducasse

> Hello, > > Where I can find documentation for slots? > > I am trying to access the pharo books site but it is unreachable from my > network right now, I got a connection time out (It works from my 3G though > (??) ), but if I remember correctly the is no slot description in any book. > > Regards, > Vitor Hello victor There is no documentation about slots that I know. Iâm sorry. Marcus may want to write one in the future. Stef

Feb. 3, 2019

back to this mailing-list

by ducasse

Hi I was not registered to this mail list so I registered so that I can reply to questions. Stef

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Tim Mackinnon

Sent from my iPhone > On 3 Feb 2019, at 02:42, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > > believe the default is to evaluate the whole line where the cursor is if > nothing is selected. That reminds me - while I fixed the senders/implementers search commands to intelligently look for the nearest selector to the cursor (in pharo7), I forgot about workspace evaluation - doit or printit should find the nearest complete expression (even if multiline) and evaluate that - unless you specifically highlight something. It makes it much more efficient to then examine things quickly. Tim

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Sean P. DeNigris

magicspeller wrote > Can you tell me why you don't have to select "ProfStef go." before right > clicking it. I had gotten the impression that to execute any Smalltalk > statement you always have to select it first. I believe the default is to evaluate the whole line where the cursor is if nothing is selected. ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by john pfersich

In Pharo, my impression is that the cu /*âââââââââââââââââ-*/ Sent from my iPhone https://boincstats.com/signature/-1/user/51616339056/sig.png See https://objectnets.net and https://objectnets.org > On Feb 2, 2019, at 16:30, magicspeller <pharo(a)magicspeller.info> wrote: > > Richard70NL wrote >> For me it works, but what you can also try is: >> 1) Click the menu Tools -> Playground >> 2) Type: ProfStef go. >> 3) Right click what you just typed and click "Do It" >> >> BTW, I'm also new with Pharo (not with programming) and I really enjoy the >> book at http://books.pharo.org/pharo-by-example/. > > Hi Richard, > > Like you, I have a programming background, but Pharo and Smalltalk are quite > a new experience. I downloaded /Pharo By Example/ but haven't gotten around > to reading any of it yet. > > Thank you for the Playground suggestion! That's a great idea, and it works > really well. That means I should be able to go back to the 64-bit version. > > Can you tell me why you don't have to select "ProfStef go." before right > clicking it. I had gotten the impression that to execute any Smalltalk > statement you always have to select it first. > > Thanks again, > Keith > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by john pfersich

I think they call the 64-bit stuff âexperimentalâ so it best to learn on the 32-bit stuff. Then you can help the developers debug the 64-bit stuff. /*âââââââââââââââââ-*/ Sent from my iPhone https://boincstats.com/signature/-1/user/51616339056/sig.png See https://objectnets.net and https://objectnets.org > On Feb 2, 2019, at 11:59, magicspeller <pharo(a)magicspeller.info> wrote: > > John Pfersich wrote >> Did you use the 32-bit version or the 64-bit version? I just used Pharo >> Launcher to start a 32-bit image. I clicked on âProfStef goâ and got a >> separate window with the tutorial. I didnât try the 64-bit version; itâs >> still beta software. > > Thanks again, John. I went to the download site and discovered that both 7.0 > versions are labeled development versions. I downloaded and ran the 32-bit > version. It works fine. > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 3, 2019

Re: [Pharo-users] PharoV50.sources in VM?

by Pierce Ng

On Sat, Feb 02, 2019 at 12:54:13PM +0100, Alistair Grant wrote: > On Sat, 2 Feb 2019 at 09:32, Hilaire <hilaire(a)drgeo.eu> wrote: > > By the way, is there any reason to not remove the symbols in the Windows > > and Linux VM libraries? It saves several MB. At least for DrGeo > > distribution, there is no use. > > I'm not sure what the impact of this would be, so would prefer others > to comment. I just built the 32-bit Windows VM from opensmalltalk-vm on Windows 7. Here's what I got. Pharo.exe works fine. Volume in drive C has no label. Volume Serial Number is FCE0-E161 Directory of C:\pkg\pharo6vm32 03/02/2019 12:54 AM 2,875,628 Pharo.exe 03/02/2019 12:54 AM 2,875,628 PharoConsole.exe 03/02/2019 12:54 AM 9,567,149 PharoConsoleUnstripped.exe 03/02/2019 12:54 AM 9,567,149 PharoUnstripped.exe 4 File(s) 24,885,554 bytes 0 Dir(s) 33,491,107,840 bytes free I think the stripping comes from build.win32x86/common/Makefile starting line 309: ifneq ($STRIPEXE,) $(STRIPEXE): $(VMEXE) $(STRIP) --strip-unneeded -o $(STRIPEXE) $(VMEXE) $(OBJCOPY) --add-gnu-debuglink=$(VMEXE) $(STRIPEXE) $(STRIPCONSOLEEXE): $(CONSOLEVMEXE) $(STRIP) --strip-unneeded -o $(STRIPCONSOLEEXE) $(CONSOLEVMEXE) $(OBJCOPY) --add-gnu-debuglink=$(CONSOLEVMEXE) $(STRIPCONSOLEEXE) endif The build output is in build.win32x86/pharo.cog.spur/build/vm. I copied the *exe and *.dll into c:\pkg\pharo6vm32 and run the VM from there. Oh, my Linux VM (also self-built) isn't stripped. % file ~/pkg/pharo6vm64/pharo /home/pierce/pkg/pharo6vm64/pharo: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=79f0524e9ecda9a3a3143fb6ba4ff45f552e05dd, with debug_info, not stripped

Feb. 3, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by magicspeller

Richard70NL wrote > For me it works, but what you can also try is: > 1) Click the menu Tools -> Playground > 2) Type: ProfStef go. > 3) Right click what you just typed and click "Do It" > > BTW, I'm also new with Pharo (not with programming) and I really enjoy the > book at http://books.pharo.org/pharo-by-example/. Hi Richard, Like you, I have a programming background, but Pharo and Smalltalk are quite a new experience. I downloaded /Pharo By Example/ but haven't gotten around to reading any of it yet. Thank you for the Playground suggestion! That's a great idea, and it works really well. That means I should be able to go back to the 64-bit version. Can you tell me why you don't have to select "ProfStef go." before right clicking it. I had gotten the impression that to execute any Smalltalk statement you always have to select it first. Thanks again, Keith -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 3, 2019

Re: [Pharo-users] favorite way to migrate from mczs to git?

by Paul DeBruicker

Thanks Sean. I get a couple different errors, depending on which Pharo I'm using. I had more time today and for 7.0, I think I fixed it. I don't think the #ignoredFileNames: method was working because when I added corrupted MCZs as in the example pasted below, it seems to continue to try to analyze those files when running #allAuthors and hit encoding errors. Skipping the #allAuthors send and just running the #fastImportCodeToDirectory:initialCommit:to: code gives the same encoding errors. Changing GitMigration>>#versions to versions versionsCache ifNil: [ | versions | versions := OrderedCollection new. self versionsWithPackageNames do: [ :quad | | fileName | fileName := quad last. (ignoredFileNames includes: (fileName allButLast: 4)) ifFalse: [ versions add: (self versionFromFileNamed: quad last) ] ] displayingProgress: [ :quad | 'Loading versions metadata... ' , quad last ]. versionsCache := versions ]. ^ versionsCache fixes my problem, but I can't seem to create a PR that doesn't include every line of every file as having changed. In 6.1 git-migration doesn't have a problem with the bad MCZs but instead gives an "Empty message requested" error when doing the #fastImportCodeToDirectory:initialCommit:to: In 6.0 it gives a DNU for GitMigrationMemoryTreeGitRepository>>#writeGitFileTreeProperties: (I made an issue for that one here: https://github.com/peteruhnak/git-migration/issues/19 The script I'm using is: migration:=GitMigration on:'Seaside/SeasideDynamicSVG'. migration ignoredFileNames: #('SeasideDynamicSVG-Core-hkl.86' 'SeasideDynamicSVG-Core-hkl.3' 'SeasideDynamicSVG-Tests-obi.7'). migration cacheAllVersions. migration populateCaches. migration allAuthors. migration authors:{ 'MaxBareis'-> #('Max Bareis' '<max(a)bareis.name>'). 'JohanBrichau' -> #('Johan Brichau' '<johanbrichau(a)me.com>'). 'hkl' -> #('Holger Kleinsorgen' '<h.kleinsorgen(a)gmail.com>'). 'go' -> #('Gerhard Obermann' '<obi068(a)gmail.com>'). 'obi' -> #('Gerhard Obermann' '<obi068(a)gmail.com>'). 'ThomasCleenewerck' -> #('ThomasCleenewerck' '<thomas(a)inceptive.be>'). 'TC' -> #('ThomasCleenewerck' '<thomas(a)inceptive.be>'). 'PaulDeBruicker' -> #('Paul DeBruicker' '<pdebruic(a)gmail.com>') }. "I change the SHA and the target file for each Pharo version" migration fastImportCodeToDirectory: 'gitmigration-repo' initialCommit:'a8d9d4c981f4e8aff4728b3ab84d296ebe77b4d5' to: '/Users/paul/Downloads/seaside-svg-pharo-7.txt' In pharo 7 to load git-migration I'm using Metacello new baseline: 'GitMigration'; repository: 'github://peteruhnak/git-migration/repository'; load. and in 6.1 & 6 I'm using Metacello new baseline: 'GitMigration'; repository: 'github://peteruhnak/git-migration:pharo6/repository'; load. Let me know if you have any ideas on what I should do to fix those errors in Pharo 6 & 6.1. If you have a copy of GitMigrationMemoryTreeGitRepository>>#writeGitFileTreeProperties: in one of your images I'd be happy to get a version of it and keep trying. It seems to me that I'll be better off porting everything to Pharo 7 then doing the migration to git. Sean P. DeNigris wrote > Paul DeBruicker wrote >> https://github.com/peteruhnak/git-migration seems to be broken on Pharo 6 > > Could you say more about your error(s)? I migrated many projects in Pharo > 6.1 with this tool > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 2, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by Richard70NL

magicspeller wrote > You can learn Pharo by clicking on the following expression: > > ProfStef go. > > I clicked on ProfStef go and nothing happened. There are three URL links > on > the same page that work like they're supposed to, but no matter how many > times I try, clicking on ProfStef go appears to do nothing at all. For me it works, but what you can also try is: 1) Click the menu Tools -> Playground 2) Type: ProfStef go. 3) Right click what you just typed and click "Do It" BTW, I'm also new with Pharo (not with programming) and I really enjoy the book at http://books.pharo.org/pharo-by-example/. Cheers, Richard -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 2, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by magicspeller

John Pfersich wrote > Did you use the 32-bit version or the 64-bit version? I just used Pharo > Launcher to start a 32-bit image. I clicked on âProfStef goâ and got a > separate window with the tutorial. I didnât try the 64-bit version; itâs > still beta software. Thanks again, John. I went to the download site and discovered that both 7.0 versions are labeled development versions. I downloaded and ran the 32-bit version. It works fine. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 2, 2019

Re: [Pharo-users] [vwnc] Falsehoods programmers believe about Smalltalk

by HernÃ¡n Morales Durand

Hi Cesar, El vie., 1 feb. 2019 a las 20:23, Cesar Rabak (<cesar.rabak(a)gmail.com>) escribiÃ³: > I'm having a good time reading to all those diatribes turned into > admonitions to 'non initiated' into the arcane art of Smalltalk. > > However, I see the need to inform you that as presented so far, the > phrases bring too much emotional content instead of intelligent down to > Earth updated to XXI century information! > > I know, and I mostly agree with you. The emotional part is totally on purpose, at least from my side, because these kind of articles are meant to shock readers, and motion curiosity. I won't see them as "admonitions" but a compilation of false or dubious perceptions about Smalltalk. As this is WIP we could also add specific examples supporting the claims, although I didn't seen it too much in other articles of this type. > For example, all the mentions to adverbs like *slow*, l*ess* and so on, > are subject to an analysis that only in a concrete context and specific > case can be correctly assayed. > > Again agreed. However I should say I need to see a backup yet to one of the greatest lies in software developement: "Python is easy" (which doesn't release smalltalkers from nothing, but is a nice reminder of rethoric power). One of my ideas behind asking in mailing-lists to well-known experts is to avoid ex silentio fallacy, but also is difficult to escape half-truth phrases. > Other class of objectionable arguments are about the implementations, they > bring an enthymeme that the specific feature or approach is not desirable > (e.g. fixed size bytecodes, etc.) without showing the reason for the need > to "defend" the position it seems to me that we are at a bar counter > discussing the tone of the color of the adversaries' sport teams uniforms... > > The fixed size bytecodes is a bad example, I should remove it. > Even the "General Myths" compiled in github would need to be better > addressed. > > For each of them, in the proper realm they are more than acceptable as a > reasonable proxy for the truth, notwithstanding disgust. > > For example: for what "real world" "real time" application can an example > be given that is not a convoluted "demonstration" of one vendor or an > application developed for academic research that is abandonware or > conversely was done in an earlier version of its Smalltalk environment? > > Bonus point if an example is used in production (meaning people is > collecting money due is use, and has been developed as recent need and not > a decision of not redo/recode a legacy application. > > Please note there are people which doesn't focus solely on industry goals, for example whatever you develop in academics today is to focus an extremely specific problem, and mostly impossible to measure in terms of money-making at least at scientific journal publication time. Factors of success in academic research software tools are completely different than industry, so yes it is very common to find "abandonware" there, but they weren't thought as a "adoptware" in the first place. Even if you do today a state-of-the-art genomic aligner, you can only measure real adoption after a few years (and citation factor is not a measure of adoption), and your users will be a few guys in laboratories and bioengineering niches. > My counter examples: > > IBM dropped its Smalltalk business. > > Interesting to see IBM mentioned as a referring player, here in Argentina is seen as one of the worst enterprises after the "IBM affair" [1] scandal. Tektronix used to employ Smalltalk in their intelligent instruments, no > longer: they follow another (industry standard) approach. > > We ourselves migrated to non smalltalk solutions for the code repos... > > Sad to read about your migration. I imagine wasn't something you did gladly. You know there are many articles and forums where Smalltalk is totally destroyed, without anyone to contend claims. And they aren't even "claims"... is just plain insulting without any experience to back up. Isn't any news anymore to read about weakness of Smalltalk implementations, lack of community support, quality, etc. That could be done with almost any developement tool, but strangely one cannot find so fierce criticism against bash, or R, when it's almost 2020 and debugging or testing with them is a complete nightmare. That doesn't mean we should support or reject any myths. I like to read both supports and constructive criticism. This is a complex subject and collecting experience samples/reports is something the community could use more. > *For every specific problem a specialized language would overperform all > others. However certain languages are inherently broad scope enough to keep > being mainstream.* > > Smalltalk currently can only be considered as niche > language/environment/whatever the purists would like to call it, but has > not caught the World. . . > True, but I'm not sure that catching the World is a reasonable goal. Making life easier for those now working with Smalltalk as a means of living could be more reasonable, at least for this age. It doesn't mean current-generation smalltalkers hasn't learnt nothing or cannot share any knowledge. Cheers, HernÃ¡n [1] https://medium.com/worm-capital/the-ibm-hall-of-shame-a-semi-complete-list-… > > My 0.019999 > > -- > Cesar Rabak > > > > > > On Fri, Feb 1, 2019 at 5:15 PM HernÃ¡n Morales Durand < > hernan.morales(a)gmail.com> wrote: > >> Added to the list. >> Nice catch! >> >> Cheers, >> >> HernÃ¡n >> >> >> El vie., 1 feb. 2019 a las 2:33, stephen(a)heaveneverywhere.com (< >> stephen(a)heaveneverywhere.com>) escribiÃ³: >> >>> >>> How about: >>> >>> Smalltalk is less efficient than "low-level" languages. >>> >>> Smalltalk can't do "real time." >>> >>> Garbage collection is less efficient than manual memory management. >>> >>> Garbage collection is really slow if you use complex data structures. >>> >>> >>> stp >>> >>> >>> -- >>> >>> Stephen Travis Pope Santa Barbara, California, USA >>> >>> http://HeavenEverywhere.com http://FASTLabInc.com >>> https://vimeo.com/user19434036/videos *http://heaveneverywhere.com/Reflections >>> <http://heaveneverywhere.com/Reflections>* >>> >>> -- >>> >>> >>> >>> On Jan 28, 2019, at 5:22 AM, Reinout Heeck <vwnclist(a)soops.nl> wrote: >>> >>> >>> Smalltalk is a programming language. >>> >>> >>> >>> R >>> >>> - >>> >>> >>> >>> On 20-1-2019 23:31, HernÃ¡n Morales Durand wrote: >>> >>> Hi there, >>> >>> I just created a GitHub repo to collect myths around Smalltalk-based >>> technologies: Pharo, Squeak, VW, VAST, Smalltalk/X, GNU/ST, etc. in the >>> spirit of the Falsehoods lists [1-4]. >>> >>> This is just a draft now but please feel free to add falsehoods based on >>> your own experiences. Examples are greatly appreciated. >>> >>> https://github.com/hernanmd/falsehoods_smalltalk >>> >>> Cheers, >>> >>> HernÃ¡n >>> >>> [1] >>> https://infiniteundo.com/post/25326999628/falsehoods-programmers-believe-ab… >>> [2] >>> https://chiselapp.com/user/ttmrichter/repository/gng/doc/trunk/output/false… >>> [3] >>> https://github.com/googlei18n/libphonenumber/blob/master/FALSEHOODS.md >>> [4] >>> https://meta-package-manager.readthedocs.io/en/develop/falsehoods.html >>> >>> >>>

Feb. 2, 2019

Re: [Pharo-users] Why DirectoryIsNotEmpty on FileReference>>deleteAll ?

by Alistair Grant

Hi Albrecht, On Fri, 1 Feb 2019 at 19:50, Albrecht Baur via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > I get a DirectoryIsNotEmpty exception on > FileReference(AbstractFileReference)>>deleteAll. > > But deleteAll is supposed to delete children too. -> So why the exception ? This is a bug in the FilePlugin. When deleting directories it is leaving the deleted directory open. On Unix this is OK, the entry is removed from the parent directory and actually deleted when the file is closed. I assume that because CIFS is a windows protocol it doesn't handle it, and leaves the entry there until closed, causing the problems later on. The problem can be reduced to the following code: | root deleteMeFolder | root := '/path/to/cifs' asFileReference. deleteMeFolder := root / 'delme'. deleteMeFolder ensureCreateDirectory. deleteMeFolder delete. Then execute: $ sudo lsof | grep delme and you'll see the deleted entries. Issue: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/368 Cheers, Alistair

Feb. 2, 2019

Re: [Pharo-users] How to intercept instvar write - MetaLinks + anonymous subclass problem

by Steven Costiou

> Le 2019-02-02 16:26, Petr Fischer via Pharo-users a Ã©crit : > > Thanks for answer! I want to detect instvar writes only for objects (instances), that was previously fetched from external "datastore" (DB like), so I can persist changed objects only back to the datastore at the end of transaction. These objects can be any existing class (Pharo classes, some 3rd party libs classes, everything), so 1) injecting a class is overkill (affects all objects in the image) 2) impossible to rewrite #class method for every existing class. > > Injecting object-centric metalinks via anonymous subclass breaks up many things, when I want to treat injected object like any othres (IMHO). > > If you will be able to avoid this issue, that would be extra cool :-] > > Note: for now, best for my "instvar writes detection" would be probably hack Object>>#attemptToAssign:withIndex: or ProtoObject>>#modificationForbiddenFor:index:value: and make my "datastore fetched objects" read only (via Object>>#setIsReadOnlyObject. > > pf I will look into that yes, however object-centric metalinks are not really meant to affect all instnces, only specific ones. That is more the purpose of "standard" metalinks. Could standard metalinks not work? Since in any case you have to have your hand on those objects, so instead of putting an object-centric metalink you could ask for the class and install a normal metalink on write access there, which would affect all instances of that class. You would also have to keep some kind of record of which class you instrumented, so you do not install the link multiple times. Steven.

Feb. 2, 2019

Re: [Pharo-users] How to intercept instvar write - MetaLinks + anonymous subclass problem

by Petr Fischer

> > is possible to intercept (before writeÃº all instance variable writes on every existing objects? > > > > Ok, I learned more about MetaLinks and it's perfectly possible to intercept instance variable writes via. installing MetaLink into object instance (cool) - then I can intercept instvar write, but one problem immediately occurs: > > when installing MetaLink into object instance, an original object class is exchanged to anonymous subclass of the original class - and because typical #= method is implemented like: > > > > = > > self == anObject > > ifTrue: [ ^ true ]. > > self class = anObject class > > ifFalse: [ ^ false ]. > > ... > > > > then most of #= comparisons in application logic is broken due to "self class = anObject class" part. > > > > Is there any way to solve this problem? > > Hi, > > the anonymous class thing only happen when you install an object-centric > metalink, i.e. on only one specific object. I also wanted to hide the > anonymous class, or maybe to only make it visible for environment tools. > I need to talk about that with Marcus. > > Why not installing your metalink on the classes of your objects, so that > all instances are affected but in that case there is no anonymous class > migration? > > If that is not possible, in your case maybe a (temporary) hack would be, > in your case, to add a test in the #class method in Object (or wherever > it is defined): > > class > > |myClass| > > myClass := self class. > > ^myClass isAnonymous ifTrue:[myClass superclass] ifFalse:[myClass] > > But i did not test that and i have no idea of the overall impact. > > Steven. Thanks for answer! I want to detect instvar writes only for objects (instances), that was previously fetched from external "datastore" (DB like), so I can persist changed objects only back to the datastore at the end of transaction. These objects can be any existing class (Pharo classes, some 3rd party libs classes, everything), so 1) injecting a class is overkill (affects all objects in the image) 2) impossible to rewrite #class method for every existing class. Injecting object-centric metalinks via anonymous subclass breaks up many things, when I want to treat injected object like any othres (IMHO). If you will be able to avoid this issue, that would be extra cool :-] Note: for now, best for my "instvar writes detection" would be probably hack Object>>#attemptToAssign:withIndex: or ProtoObject>>#modificationForbiddenFor:index:value: and make my "datastore fetched objects" read only (via Object>>#setIsReadOnlyObject:). pf

Feb. 2, 2019

Re: [Pharo-users] How to intercept every instance variable write on all objects

by Peter Uhnak

Hi, 3) Metalinks - it's based on intercepting method calls, right? But I need to intercept direct instance variable write, so probably not possible no, you can attach metalink to any AST node, including an Assignment Node. Some years ago I've made a small utility for this that also auto-reinstalled when the method has changed. Should work with P6, not sure about the current P7 https://github.com/peteruhnak/metalinks-toolkit . But of course you can attach the MetaLink directly. P On Fri, Feb 1, 2019 at 12:43 AM Petr Fischer via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Hello, > > is possible to intercept (before writeÃº all instance variable writes on > every existing objects? > > I found a discussion here: > > http://forum.world.st/Is-it-possible-to-follow-an-object-through-a-computat… > > Known solutions: > > 1) jugglery with object read only state + ModificationForbidden - not > ideal, it's probably slow via exceptions and every nested on:do: stop > change detection > > 2) it's possible to do it via slots - but it does not work on any existing > object (only on my specially prepared objects with slots) > > 3) Metalinks - it's based on intercepting method calls, right? But I need > to intercept direct instance variable write, so probably not possible > > Is there any way? Thanks! pf > > > >

Feb. 2, 2019

Re: [Pharo-users] PharoV50.sources in VM?

by Alistair Grant

On Sat, 2 Feb 2019 at 09:32, Hilaire <hilaire(a)drgeo.eu> wrote: > > Thanks for the update. > > By the way, is there any reason to not remove the symbols in the Windows > and Linux VM libraries? It saves several MB. At least for DrGeo > distribution, there is no use. I'm not sure what the impact of this would be, so would prefer others to comment. > Hilaire > > Le 02/02/2019 Ã 09:01, Alistair Grant a Ã©crit : > > I can't see any reason for keeping this. The sources file is now > > generated for each image, so it doesn't make sense to distribute it > > with the VM. > > > > I'll remove this in a few days if there aren't any other objections. It looks like this is a linux only issue (I downloaded Win and Mac VMs and the sources aren't present). Issue: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/365 PR: https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/366 Cheers, Alistair

Feb. 2, 2019

Re: [Pharo-users] How to intercept instvar write - MetaLinks + anonymous subclass problem

by Steven Costiou

> is possible to intercept (before writeÃº all instance variable writes on every existing objects? > > Ok, I learned more about MetaLinks and it's perfectly possible to intercept instance variable writes via. installing MetaLink into object instance (cool) - then I can intercept instvar write, but one problem immediately occurs: > when installing MetaLink into object instance, an original object class is exchanged to anonymous subclass of the original class - and because typical #= method is implemented like: > > = > self == anObject > ifTrue: [ ^ true ]. > self class = anObject class > ifFalse: [ ^ false ]. > ... > > then most of #= comparisons in application logic is broken due to "self class = anObject class" part. > > Is there any way to solve this problem? Hi, the anonymous class thing only happen when you install an object-centric metalink, i.e. on only one specific object. I also wanted to hide the anonymous class, or maybe to only make it visible for environment tools. I need to talk about that with Marcus. Why not installing your metalink on the classes of your objects, so that all instances are affected but in that case there is no anonymous class migration? If that is not possible, in your case maybe a (temporary) hack would be, in your case, to add a test in the #class method in Object (or wherever it is defined): class |myClass| myClass := self class. ^myClass isAnonymous ifTrue:[myClass superclass] ifFalse:[myClass] But i did not test that and i have no idea of the overall impact. Steven.

Feb. 2, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by magicspeller

Thanks, John. It is the 64-bit version. I didn't know it was beta software. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 2, 2019

Re: [Pharo-users] Learn Pharo - Not Working

by john pfersich

Did you use the 32-bit version or the 64-bit version? I just used Pharo Launcher to start a 32-bit image. I clicked on âProfStef goâ and got a separate window with the tutorial. I didnât try the 64-bit version; itâs still beta software. /*âââââââââââââââââ-*/ Sent from my iPhone https://boincstats.com/signature/-1/user/51616339056/sig.png See https://objectnets.net and https://objectnets.org > On Feb 1, 2019, at 23:34, magicspeller <pharo(a)magicspeller.info> wrote: > > Hi, everyone. > > I'm an absolute newbie to Pharo, and to Smalltalk, and I'm trying to learn. > I just installed Pharo 7.0.1 (on Windows 10) and I immediately got stuck. > > I selected "Learn Pharo" in the outline, and it gave me a screen saying: > > You can learn Pharo by clicking on the following expression: > > ProfStef go. > > I clicked on ProfStef go and nothing happened. There are three URL links on > the same page that work like they're supposed to, but no matter how many > times I try, clicking on ProfStef go appears to do nothing at all. > > Am I misunderstanding what I'm supposed to do or what's supposed to happen? > > Thanks a lot for your help. > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Feb. 2, 2019

Re: [Pharo-users] PharoV50.sources in VM?

by Hilaire

Thanks for the update. By the way, is there any reason to not remove the symbols in the Windows and Linux VM libraries? It saves several MB. At least for DrGeo distribution, there is no use. Hilaire Le 02/02/2019 Ã 09:01, Alistair Grant a Ã©critÂ : > I can't see any reason for keeping this. The sources file is now > generated for each image, so it doesn't make sense to distribute it > with the VM. > > I'll remove this in a few days if there aren't any other objections. -- Dr. Geo http://drgeo.eu

Feb. 2, 2019

Re: [Pharo-users] PharoV50.sources in VM?

by Alistair Grant

Hi Hilaire, On Fri, 1 Feb 2019 at 21:38, Hilaire <hilaire(a)drgeo.eu> wrote: > > Hi, > > In the Linux distributed VM, I noted the file > lib/pharo/5.xxxx/PharoV50.sources. > > Can it be removed safely? What is its purpose? I can't see any reason for keeping this. The sources file is now generated for each image, so it doesn't make sense to distribute it with the VM. I'll remove this in a few days if there aren't any other objections. Cheers, Alistair

Feb. 2, 2019

Learn Pharo - Not Working

by magicspeller

Hi, everyone. I'm an absolute newbie to Pharo, and to Smalltalk, and I'm trying to learn. I just installed Pharo 7.0.1 (on Windows 10) and I immediately got stuck. I selected "Learn Pharo" in the outline, and it gave me a screen saying: You can learn Pharo by clicking on the following expression: ProfStef go. I clicked on ProfStef go and nothing happened. There are three URL links on the same page that work like they're supposed to, but no matter how many times I try, clicking on ProfStef go appears to do nothing at all. Am I misunderstanding what I'm supposed to do or what's supposed to happen? Thanks a lot for your help. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 2, 2019

Re: [Pharo-users] Porting Github packages to Pharo 7

by HernÃ¡n Morales Durand

Hi Tomo, Nice to know I wasn't so wrong :) Thank you for sharing your experience. Since we are few (than other techs) it is important to communicate and let others know. Cheers, HernÃ¡n El jue., 31 ene. 2019 a las 7:06, tomo (<tomohiro.tomo.oda(a)gmail.com>) escribiÃ³: > Hernan, > > > Yes, ideally my package will work on both versions, Pharo 6 and Pharo 7. > > The first option was about splitting MyPackage into MyPackage-Common, > > MyPackage-Pharo6 and > > MyPackage-Pharo7 with corresponding methods/classes moved. > > In my project, I migrated MyPackage into Pharo 7, and create > MyPackage-Pharo6 for compatibility. > Then updated BaselineOf to conditionally load MyPackage-Pharo6. > At some point, I will drop MyPackage-Pharo6 to make migration to Pharo 8 > easier :-) > > I haven't used branch or tag to support different platform versions. > I'd prefer branch over tag if I want to keep maintaining codes for older > platforms. > I'd like to hear how people are dealing with this issue, too. > > Best Regards, > --- > tomo > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Feb. 2, 2019

Re: [Pharo-users] Porting Github packages to Pharo 7

by HernÃ¡n Morales Durand

Yes I've concluded this is the "easiest" way. Sadly it is hard to automate the porting. Thank you Guille. El jue., 31 ene. 2019 a las 6:49, Guillermo Polito (< guillermopolito(a)gmail.com>) escribiÃ³: > Well, I've said it somewhere in the mail, probably got lost in all my > blablbla, so I'll summarize. > > - I use tags to identify releases. > - A same release works in Pharo6 and Pharo7 > - In the baseline I have defined some conditional package that is loaded > in Pharo6 that provides compatibility from Pharo6 to Pharo7. > Of course, depending on the change you're doing you may want to have > one package per platform besides the core. > > When I was talking about a single branch I was talking about the so-called > master branch, not about creating a new branch (which was case 2) > > On Thu, Jan 31, 2019 at 10:29 AM HernÃ¡n Morales Durand < > hernan.morales(a)gmail.com> wrote: > >> Hi Guillermo >> >> El jue., 31 ene. 2019 a las 6:08, Guillermo Polito (< >> guillermopolito(a)gmail.com>) escribiÃ³: >> >>> Hi HernÃ¡n, >>> >>> On Thu, Jan 31, 2019 at 8:20 AM HernÃ¡n Morales Durand < >>> hernan.morales(a)gmail.com> wrote: >>> >>>> I would like your advice on this: What's the effortless way to migrate >>>> Github repository from Pharo 6 to Pharo 7? >>>> >>> >>> Can you give us some more detail? Do you already have your project in >>> github working for Pharo6? Or is it in Smalltalkhub and you are willing to >>> move it to github? >>> >>> >> Most of my packages are working on Pharo 6 already, and they are on >> GitHub. >> >> >> >>> I'll assume the first below :) >>> >>> >>>> >>>> I thought in the following solutions: >>>> >>>> 1) In a Pharo 6 image modify my BaselineOf, add & push a new package >>>> MyPackage-Pharo6, then load it into a Pharo 7 image, create >>>> MyPackage-Pharo7 and port as needed. The same Metacello installation script >>>> is preserved for all versions. >>>> >>>> 2) Tag repository as x.x in a Pharo 6 image, load my package & do port >>>> in a Pharo 7 image and push to master. Previous Pharo 6 version could be >>>> loaded referring to a tag (or branch maybe?) in the Metacello installation >>>> script. >>>> >>> >>> Well, it depends on what you want to provide as "support". >>> - Do you want your package to keep working on both versions? >>> >> >> Yes, ideally my package will work on both versions, Pharo 6 and Pharo 7. >> The first option was about splitting MyPackage into MyPackage-Common, >> MyPackage-Pharo6 and MyPackage-Pharo7 with corresponding methods/classes >> moved. >> >> >>> - Do you want your new features to be available also in the old version? >>> >>> >> I'm not really interested in backward compatibiilty. >> >> >>> Case 1) Usually I try (if context agrees :) to keep a single branch. And >>> I try that my project in that branch is compatible with both Pharo >>> versions. Having a single branch if possible removes part of the >>> bureaucracy of thinking about backports, patches, and so on... >>> Releases are marked as tags, but they are shared between the different >>> platforms. >>> >>> >> You're talking about branches but I've used branches for a different >> purpose (providing features for example). Wouldn't be more appropriate to >> use tags in this case? >> >> >>> We were able to do it with Iceberg for a long time (and it is an example >>> that relies on Spec, File stuff, FFI..). >>> We have lost that compatibility in the last weeks because we made a fix >>> for win64 that was not compatible with Pharo6, but I'm thinking in getting >>> that compatibility back at lest for Iceberg 1.5.*. >>> >>> >> I will check those Baselines because I need to see examples of how does >> it work. >> >> >>> To keep a single branch compatible with many Pharo versions there is no >>> magic: >>> 1) we have a forward compatibility package to Pharo 7. The idea is that >>> we write code for Pharo7 but in Pharo6 we can load a package with some >>> extensions/additions that make it compatible with Pharo7. >>> 2) we try to use compatible APIs. For example, we use FileSystem as >>> much as possible. Another example is that Iceberg relies a lot in the Path >>> class to manipulate the directory tree, and the nicest API of that class >>> changed a lot so for simplicity we used the low level API that is a bit >>> uglier and verbose, but compatible. >>> >>> Case 2) At the same time, just to set an example, we were thinking >>> version 1.5.* was going to be the last iceberg version supported for >>> Pharo6, so pharo7 and 8 were going to use 1.6.*. This means we will have >>> two different versions running side by side. >>> >>> If we want to continue applying patches and critical bugfixes in the >>> 1.5.* version, we should have two branches. >>> Notice that here I'm assuming that my 1.5.* branch will move much more >>> slowly than 1.6.*, since no real active development will be done with it. >>> >>> >> Thank you Guillermo >> >> >> >>> Probably other people can share their workflows. >>> >>> HTH, >>> Guille >>> >>> >>>> Any recommendations? Alternative paths? >>>> >>>> Cheers, >>>> >>>> HernÃ¡n >>>> >>>> >>>> >>>> >>> >>> -- >>> >>> >>> >>> Guille Polito >>> >>> Research Engineer >>> >>> Centre de Recherche en Informatique, Signal et Automatique de Lille >>> >>> CRIStAL - UMR 9189 >>> >>> French National Center for Scientific Research - *http://www.cnrs.fr >>> <http://www.cnrs.fr>* >>> >>> >>> *Web:* *http://guillep.github.io* <http://guillep.github.io> >>> >>> *Phone: *+33 06 52 70 66 13 >>> >> > > -- > > > > Guille Polito > > Research Engineer > > Centre de Recherche en Informatique, Signal et Automatique de Lille > > CRIStAL - UMR 9189 > > French National Center for Scientific Research - *http://www.cnrs.fr > <http://www.cnrs.fr>* > > > *Web:* *http://guillep.github.io* <http://guillep.github.io> > > *Phone: *+33 06 52 70 66 13 >

Feb. 2, 2019

Re: [Pharo-users] favorite way to migrate from mczs to git?

by Sean P. DeNigris

Paul DeBruicker wrote > https://github.com/peteruhnak/git-migration seems to be broken on Pharo 6 Could you say more about your error(s)? I migrated many projects in Pharo 6.1 with this tool ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Feb. 2, 2019

Re: How to intercept instvar write - MetaLinks + anonymous subclass problem

by Petr Fischer

> is possible to intercept (before writeÃº all instance variable writes on every existing objects? > > I found a discussion here: > http://forum.world.st/Is-it-possible-to-follow-an-object-through-a-computat… > > Known solutions: > .... > 3) Metalinks - it's based on intercepting method calls, right? But I need to intercept direct instance variable write, so probably not possible Ok, I learned more about MetaLinks and it's perfectly possible to intercept instance variable writes via. installing MetaLink into object instance (cool) - then I can intercept instvar write, but one problem immediately occurs: when installing MetaLink into object instance, an original object class is exchanged to anonymous subclass of the original class - and because typical #= method is implemented like: = self == anObject ifTrue: [ ^ true ]. self class = anObject class ifFalse: [ ^ false ]. ... then most of #= comparisons in application logic is broken due to "self class = anObject class" part. Is there any way to solve this problem? Thanks! pf

Feb. 2, 2019

PharoV50.sources in VM?

by Hilaire

Hi, In the Linux distributed VM, I noted the file lib/pharo/5.xxxx/PharoV50.sources. Can it be removed safely? What is its purpose? Thanks Hilaire -- Dr. Geo http://drgeo.eu

Feb. 1, 2019

Re: [Pharo-users] LibGit error at start up

by Hilaire

I have determined the Linux 32 bits VM proposed for download is the faulty. No idea about the 64bits versions. You can download the Pharo VM and image as separated packages. * Pharo image:Â 64bit (default) <https://files.pharo.org/get-files/70/pharo64.zip>Â |Â 32bit <https://files.pharo.org/get-files/70/pharo.zip> * Â PharoVM 7.0 for Windows:Â 64bit <https://files.pharo.org/get-files/70/pharo64-win-stable.zip>Â |Â 32bit (default) <https://files.pharo.org/get-files/70/pharo-win-stable.zip> * Â PharoVM 7.0 for macOS:Â 64bit (default) <https://files.pharo.org/get-files/70/pharo64-mac-stable.zip>Â |Â 32bit <https://files.pharo.org/get-files/70/pharo-mac-stable.zip> * Â PharoVM 7.0 for Linux:Â 64bit (default) <https://files.pharo.org/get-files/70/pharo64-linux-stable.zip>Â |Â 32bit <https://files.pharo.org/get-files/70/pharo-linux-stable.zip> Le 31/01/2019 Ã 11:43, Hilaire a Ã©critÂ : > I should add the host is Linux 64bits, configured with 32 bits > libraries, and DrGeo/32bits was running fine so far (version of June > 2018 with P7 32bits image and VM of then). It should not be related to > the issue. -- Dr. Geo http://drgeo.eu

Feb. 1, 2019

favorite way to migrate from mczs to git?

by PAUL DEBRUICKER

Hi - Whats the best way to migrate a few dozen projects to git, some with ConfigurationOfXXX and some without? https://github.com/peteruhnak/git-migration seems to be broken on Pharo 6 & 7. Thanks Paul

Feb. 1, 2019

Re: [Pharo-users] Class name with diacritic character and Pharo

by Sven Van Caekenberghe

https://github.com/pharo-project/pharo/pull/2433 > On 29 Jan 2019, at 15:36, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > https://github.com/pharo-project/pharo/issues/2395 > >> On 27 Jan 2019, at 17:03, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> >> Hi Dominique, >> >>> On 27 Jan 2019, at 11:40, Dominique Dartois <dom(a)dartois.org> wrote: >>> >>> Hello all. >>> If a use french diacritic character in a class name, the code runs but I canât fileout the package nor save it with Monticello. >>> For example, the C cedilla in the class name drive me to an âZnInvalidUTF8:Illegal byte for utf-8 encoding' when filing out. >>> >>> Is it a bug or a feature? >>> Thank you >>> >>> <image.png>--- >>> Dominique Dartois >> >> Thanks for reporting this. This is most definitely a bug, I can confirm its occurrence. >> >> I'm CC pharo-dev as this is quite important. This will be a long mail. >> >> >> This is one manifestation of a problem that has been present for quite a while. >> >> I'll start by describing what I did, what went well and where/how this fails, some generic points, and two conceptual solutions (that need further verification). >> >> Like you, I created a new subclass: >> >> Object subclass: #ClasseFranÃ§aise >> instanceVariableNames: '' >> classVariableNames: '' >> package: '_UnpackagedPackage' >> >> With comment: >> >> I am ClasseFranÃ§aise. >> >> Try: >> >> ClasseFranÃ§aise new Ã©lÃ¨ve. >> ClasseFranÃ§aise new euro. >> >> And two methods (in the 'test' protocol): >> >> Ã©lÃ¨ve >> ^ 'Ã©lÃ¨ve' >> >> euro >> ^ 'â¬' >> >> I added the euro sign (because that is encoded in UTF-8 with 3 bytes, not 2 like Ã§). >> Like you said, the system can cope with such class and method names and seems to function fine. >> >> Looking at the .changes file, the correct source code was appended: >> >> ----SNAPSHOT----2019-01-26T23:36:18.548555+01:00 work.image priorSource: 339848! >> >> Object subclass: #ClasseFranÃ§aise >> instanceVariableNames: '' >> classVariableNames: '' >> package: '_UnpackagedPackage'! >> !ClasseFranÃ§aise commentStamp: 'SvenVanCaekenberghe 1/27/2019 12:25' prior: 0! >> I am ClasseFranÃ§aise.! >> !ClasseFranÃ§aise methodsFor: 'test' stamp: 'SvenVanCaekenberghe 1/27/2019 12:26'! >> Ã©lÃ¨ve >> ^ 'Ã©lÃ¨ve'! ! >> !ClasseFranÃ§aise commentStamp: 'SvenVanCaekenberghe 1/27/2019 12:27' prior: 33898360! >> I am ClasseFranÃ§aise. >> >> Try: >> >> ClasseFranÃ§aise new Ã©lÃ¨ve. >> ClasseFranÃ§aise new euro. >> ! >> !ClasseFranÃ§aise methodsFor: 'test' stamp: 'SvenVanCaekenberghe 1/27/2019 12:27'! >> euro >> ^ 'â¬'! ! >> >> >> Doing a file out (or otherwise saving the source code) fails. The reason is an incorrect manipulation of this source file while looking for what is called the method preamble, in SourcFileArray>>#getPreambleFrom:at: position >> >> An programmatic way to invoke the same error is by doing >> >> (ClasseFranÃ§aise>>#Ã©lÃ¨ve) timeStamp. >> (ClasseFranÃ§aise>>#Ã©lÃ¨ve) author. >> >> Both fail with the same error. >> >> >> The source code of methods is (currently) stored in a .sources or .changes file. CompiledMethods know their source pointer, an offset in one of these files. Right before the place where the source starts is a preamble that contains some meta information (including the author and timestamp). To access that preamble, the source code pointer is moved backwards to the beginning of the preamble (which begins and ends with a !). >> >> >> The current approach fails in the presence of non-ASCII characters. More specifically because of a mixup between the concept of byte position and character position when using UTF-8, a variable length encoding (both the .changes and the .sources are UTF-8 encoded). >> >> For example, consider >> >> 'Ã partir de 10 â¬' size. "16" >> 'Ã partir de 10 â¬' utf8Encoded size. "19" >> >> So although the string contains 16 characters, it is encoded as 19 bytes, Ã using 2 bytes and â¬ using 3 bytes. In general, moving backwards or forwards in UTF-8 encoded bytes cannot be done without understanding UTF-8 itself. >> >> ZnUTF8Encoder can do both (moving forward is #nextFromStream: while moving backwards is #backOnStream:). However, ZnUTF8Encoder is also strict: it will signal an error when forced to operate in between encoded characters, which is what happens here. >> >> It is thus not possible to move to arbitrary bytes positions and assume/hope to always arrive on the correct character boundaries and it is also wrong to take the difference between two byte positions as the count of characters present (since their encoding is of variable length). >> >> SourcFileArray>>#getPreambleFrom:at: is doing both of these wrong (but gets away with it in 99.99% of all cases since very few people name their classes like that). >> >> There are two solutions: operate mostly on the byte level or operate correctly on the character level. Here are two conceptual solutions (you must execute either solution 1 or 2, not both), with two different inputs. >> >> >> src := '!ClasseFranÃ§aise methodsFor: ''test'' stamp: ''SvenVanCaekenberghe 1/27/2019 12:27''! >> euro >> ^ ''â¬''! !'. >> >> "startPosition := 83" >> >> str := ZnCharacterReadStream on: (src utf8Encoded readStream). >> str position: 83. "at start of euro, the methods source string" >> str upToEnd. >> >> str position: (83 - 3). "before ! before euro" >> >> "find the previous ! before position" >> position := str position. >> binary := str wrappedStream. >> encoder := str encoder. >> >> "solution 1" >> [ position >= 0 and: [ binary position: position. binary next ~= 33 ] ] whileTrue: [ position := position - 1 ]. >> position. >> encoder decodeBytes: (binary next: 80 - position). >> >> "solution 2" >> count := 0. >> [ str position >= 0 and: [ str next ~= $! ] ] whileTrue: [ >> encoder backOnStream: binary; backOnStream: binary. count := count + 1 ]. >> str position. >> str next: count. >> >> >> Same code, different input (and starting position): >> >> >> src := '!ABC!ClasseFranÃ§aise methodsFor: ''test'' stamp: ''SvenVanCaekenberghe 1/27/2019 12:27''! >> euro >> ^ ''â¬''! !'. >> >> "startPosition := 87" >> >> str := ZnCharacterReadStream on: (src utf8Encoded readStream). >> str position: 87. "at start of euro, the methods source string" >> str upToEnd. >> >> str position: (87 - 3). "before ! before euro" >> >> "find the previous ! before position" >> position := str position. >> binary := str wrappedStream. >> encoder := str encoder. >> >> "solution 1" >> [ position >= 0 and: [ binary position: position. binary next ~= 33 ] ] whileTrue: [ position := position - 1 ]. >> position. >> encoder decodeBytes: (binary next: 80 - position). >> >> "solution 2" >> count := 0. >> [ str position >= 0 and: [ str next ~= $! ] ] whileTrue: [ >> encoder backOnStream: binary; backOnStream: binary. count := count + 1 ]. >> str position. >> str next: count. >> >> >> Solution 1 (at the byte level) works because $! (ASCII code 33) is also encoded as such in UTF-8 and this byte pattern cannot be part of a 2, 3 or 4 byte UTF-8 encoded character. The final byte segment must then be given to the proper encoder to turn it into characters. >> >> Solution 2 (at the character level) works because it essentially counts characters while moving backwards correctly (it moves back 2 steps each time because #next moves 1 step forward, while #peek would not help). >> >> Note that in Solution 1 the moving position is held in an external variable, while in Solution 2 it is held inside the stream. >> >> >> Implementing either solution requires more internal access of the streams (#wrappedStream), so SourcFileArray>>#getPreambleFrom:at: should at least be moved to SourceFile, IMHO. >> >> Obviously this is a sensitive/critical area to touch. >> >> We will also need a regression unit test. >> >> On a higher design level, I think that CompiledMethod>>#timeStamp and CompiledMethod>>#author should be cached at the instance level (a unix timestamp and a symbol would cost very little). >> >> Sven >> >> >> >> >> >> >

Feb. 1, 2019

[ANN] Pharo Launcher 1.6 released

by Christophe Demarey

Hi all, Pharo Launcher 1.6 has just been released! It is available from http://pharo.org/download. This new version introduces two major changes: the list of template sources is now externalized as a Ston file. Pharo Launcher will check regularly (at startup and each day) if there are changes between your local source of templates and the one hosted in Pharo file server. If so, Pharo Launcher will propose you to update your template sources. It is a way to automatically get new official sources or to keep stable, dev versions up to date. a small UI is now available to manage VMs of PharoLauncher (update, remove, list). Also, this is the first release done with all sources coming from GitHub (https://github.com/pharo-project/pharo-launcher) Big thanks to all contributors, including issue reports. Here is the changelog: Pharo Launcher v1.6 <https://github.com/pharo-project/pharo-launcher/releases/tag/1.6> New features: #283 <https://github.com/pharo-project/pharo-launcher/issues/283> Template sources should be editable without modifying PL code #172 <https://github.com/pharo-project/pharo-launcher/issues/172> Provide a way to update / remove VMs #131 <https://github.com/pharo-project/pharo-launcher/issues/131> Display date for "Last Modified" on the form of "X day/month/year ago" Improvements: #295 <https://github.com/pharo-project/pharo-launcher/issues/295> Pharo 7 marked as (development version) #290 <https://github.com/pharo-project/pharo-launcher/issues/290> Add "latest" to indicate dynamic version development versions for Pharo 7.0 #299 <https://github.com/pharo-project/pharo-launcher/issues/299> About hot (more recently used) coloring schema #287 <https://github.com/pharo-project/pharo-launcher/issues/287> Launch button is enabled despite no Current image being selected (or present) #274 <https://github.com/pharo-project/pharo-launcher/issues/274> Copy and Rename command should not add a "-01" Bug fixes: #293 <https://github.com/pharo-project/pharo-launcher/issues/293> zipfile from 85bebb7 <https://github.com/pharo-project/pharo-launcher/commit/85bebb7dc75e7e78fac0…> has no source file #291 <https://github.com/pharo-project/pharo-launcher/issues/291> FileDoesNotExist error at Launcher startup #286 <https://github.com/pharo-project/pharo-launcher/issues/286> Buttons (Import > Launch an image...) are cut off in Windows 10 #281 <https://github.com/pharo-project/pharo-launcher/issues/281> Pharo Launcher does not go beyond Pharo 7 #1384 image Regards, The Pharo team.

Feb. 1, 2019

Slots docs?

by Vitor Medina Cruz

Hello, Where I can find documentation for slots? I am trying to access the pharo books site but it is unreachable from my network right now, I got a connection time out (It works from my 3G though (??) ), but if I remember correctly the is no slot description in any book. Regards, Vitor

Feb. 1, 2019

Why DirectoryIsNotEmpty on FileReference>>deleteAll ?

by Albrecht Baur

I get a DirectoryIsNotEmpty exception on FileReference(AbstractFileReference)>>deleteAll. But deleteAll is supposed to delete children too. -> So why the exception ? I can reproduce it with: --- | sourceFolder deleteMeFolder numberOfRetries | sourceFolder := '/network-drive-mounted-via-cifs/delme-tmpl/'. deleteMeFolder := '/network-drive-mounted-via-cifs/delme/'. "copy sourceFolder to deleteMeFolder:" sourceFolder asFileReference copyAllTo: deleteMeFolder asFileReference . "delete deleteMeFolder again:" numberOfRetries := 0. [Â Â Â deleteMeFolder asFileReference deleteAll ] on: DirectoryIsNotEmpty do: [:ex| Â Â Â (numberOfRetries := numberOfRetries + 1) < 5 Â Â Â Â Â Â ifTrue: [ ex retry ]Â Â Â ]. Transcript crLog . Transcript show: 'Retries: ', numberOfRetries asString . --- ---> numberOfRetries is now = 1 ! BUT: this only happens when sourceFolder and deleteMeFolder are on a network drive mounted via cifs. (linux fstab entry like: //host/share /network-drive-mounted-via-cifs/ cifs credentials=...,uid=... 0 0 ) How do I handle such situations when working with the file library on network drives? (My "retry on exception" workaround seems hackish to me.) Thanks, Albrecht

Feb. 1, 2019

Re: [Pharo-users] Seaside or Iliad for business applications?

by Siemen Baader

Thanks to you both, Cyril and Esteban! On 23 Jan 2019, at 14:22, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> wrote: You can use JQuery with ajax to refresh part of the page. You can check for example this component in MDL that is working with ajax: https://mdl.ferlicot.fr/mdl/Widgets/DatePicker Nice demo! Ok, so it is possible but seems to be more low-level than what Iliad does - there every WAComponent is re-rendered in the client by the framework when marked dirty. Good to see the alternative! On 23 Jan 2019, at 14.28, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: There is also Willow (a framework on top of Seaside): https://github.com/ba-st/Willow Thanks, this looks interesting. I'll have to consider if it does what I need and if the fact that it is based on Seaside means that there is good community support. On 23 Jan 2019, at 14:22, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> wrote: We talked with Johan not long ago about clean URLs. It's possible to have them by storing the fields in cookies, but it mean that you can only have one session by browser. But this is what everyone else I know does, including Iliad. Try to log into Facebook or Gmail and open a new tab, you will be logged in to your session. To get a new session people open a private browser tab. And if users copy the URL and share it with someone else, they wouldn't want to give away their session ID. Or am I missing something? As I said, I don't know Seaside and my be misunderstanding why it does things the way it does. best, Siemen

Feb. 1, 2019

Smalltalkhub server maintenance planned February, 5th

by Christophe Demarey

Hello, A maintenance of smalltalkhub server is planned next Tuesday: February, 5th starting at 7:30 UTC time. The service should be back a few minutes later. The Pharo team.

Feb. 1, 2019