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