April 2018 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo Launcher
by Hilaire April 15, 2018

April 15, 2018

Can you make a search for your PharoDebug.log, because I can see, at least on P7 and Linux, this file is not always located nearby the image but at the user root directory. Hilaire Le 15/04/2018 Ã 20:52, Benoit St-Jean via Pharo-users a Ã©critÂ : > Downloaded it.Â Installed it.Â Started it.Â Selected an image.Â Bam.Â > The app vanished. > > Also tried on a > brand-new-and-fresh-Windows-10-machine-with-nothing-previously-installed > and same thing. > > The app doesn't even show in the task manager. > > And no error file was created. > -- Dr. Geo http://drgeo.eu

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Re: [Pharo-users] Where do we go now ?
by Ben Coman April 15, 2018

April 15, 2018

On 13 April 2018 at 17:49, Benoit St-Jean via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: Benoit St-Jean <bstjean(a)yahoo.com> > To: Esteban Lorenzano <estebanlm(a)gmail.com> > Cc: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Bcc: > Date: Fri, 13 Apr 2018 09:49:15 +0000 (UTC) > Subject: Re: [Pharo-users] Where do we go now ? > For those interested. > > Created the issues 21686, 21693, 21695, 21696. > > And more to come... > Thanks for those. I don't much time right to devote, but managed to knock one off. And I learn't something new. I'd not known there was a setting for screen background. The other ones seem related to a problem dealing with user home folders containing non-ascii characters. Currently this seems only to affect a small number of people, but is a show stopper for them, and the numbers will grow with our hoped for growing popularity. As a work around, in the PharoLauncher settings can you set the directories like C:\PharoLauncher\images C:\PharoLaucnher\vms and report if that helps. Note, I bumped into an issue changing that setting myself recently where it tries to migrate the existing images from the old to the new folder, causing a catch-22 when your trying to do that to work around other problems. To work around that, I had to scroll down the debug stack to find where the migration was iterating through the image folders, and short circuit that with "Return entered value" from the context menu. Any value will do when the return value is not used. good luck. @PharoLauncher maintainers, can the change in this setting be made to succeed even if the migration fails. (I need to run right now) cheers -ben

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Re: [Pharo-users] Pharo Launcher
by Marten Feldtmann April 15, 2018

April 15, 2018

After a long time I wanted to have a look at the current Pharo situation. I just downloaded the Linux 64bit version of Pharo from the web site: -> I opened "pharo" (via a double click on the pharo application) and got a list of possible templates I could load. -> I selected Pharo 6.1 template, created an image and wanted to start that image - the initial application disappeared - but nothing happened after that. If I start the initial pharo app from a shell by hand and I want to start the selected image it seems to work. My system: Linux Mint 18.1, 64 bit -- Marten Feldtmann

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Re: [Pharo-users] Where do we go now ?
by Esteban Lorenzano April 15, 2018

April 15, 2018

Hi, > On 13 Apr 2018, at 07:53, Benoit St-Jean via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Benoit St-Jean <bstjean(a)yahoo.com> > Subject: Where do we go now ? > Date: 13 April 2018 at 07:53:46 CEST > To: pharo-users(a)lists.pharo.org > Reply-To: Benoit St-Jean <bstjean(a)yahoo.com> > > > Hello guys, > > Just a quick word to get some things straight because, quite frankly, I really don't know where we're heading. > > When Pharo started, the goal was to depart from Squeak and do a *major clean up* of all the code, especially Morphic. The promise of a new, clean & lean Smalltalk attracted a lot of people. And then... > > I'm looking at the Pharo 7.0 image right now and I just don't get where we're heading. Every Pharo release gets bigger, and bigger, and bigger. I don't mind the environment getting bigger if it adds functionalities or new tools but that's not quite the case here. LOTS of stuff is just duplicated. > > Do we really need 2 code completion classes (NECController, NOCController) ? Do we really need 2 system browsers (Nautilus, Calypso)? Do we really need 2 compilers (OpalCompiler, Compiler) ? Do we really need 8 delay schedulers (DelayMicrosecondScheduler, DelayMillisecondScheduler, DelayNullScheduler, DelayExperimentalSpinScheduler, DelaySpinScheduler, DelayTicklessScheduler, DelayExperimentalCourageousScheduler, DelayExperimentalSemaphoreScheduler) ? Do we really need 2 inspectors (GTInspector, EyeInspector) ? Do we really need 2 workspaces (GTPlayground, Workspace) ? Et cetera. Et cetera. Et cetera. I could go on, and on, and onâ¦ Pharo 7.0 is a development version. Before is releases most duplicated things you mention here will be gone: - Nautilus - Compiler - EyeInspector Workspace could be gone but we need a fallback in case the other more potent tools fail. Schedulers are still necessary. > > Pharo 5.1 had 5885 classes. Pharo 6.1 had 6481 classes. Pharo 7.0 alpha has 7612 classes. Can you see a trend? > > Pharo 5.1 had 416 preference settings. Pharo 6.1 had 494 preference settings. Pharo 7.0 alpha has 662 preference settings. Can you see a trend? > > Pharo 5.1 had a 27.44 MB image. Pharo 6.1 had a 35.18 MB image. Pharo 7.0 alpha has a 47.97 MB image. Can you see a trend? Pharo 5.1 didnât have : - GTTools - Iceberg - Epicea - and many others. > > Add to that the fact that Pharo is a nightmare when you want to port code. Just with the 7.0 release, 61 classes will be deprecated (and lots more to come if you search for the string "deprecated" into the code, most of the time hidden in the comments of the soon-to-be-deprecated-in-Pharo-8-I-guess classes). If you do not want we to remove classes, how do you want we to go âsmaller" and cleaner? > You have code that deals with sockets, should you use the old Socket classes or convert everything to Zodiac? And why do we keep both "frameworks" in the image ? Pharo hasn't been backward compatible with "old socket classes" a looooooong time ago anyway! Zodiac relies on Sockets, there is not duplication there. > You have code that deals with dependencies, should you use the old dependents mechanism or convert everything to announcements? you got me here. but removing takes timeâ¦ you are free to contribute with fixes :) > > UI speaking, what framework should anyone use ? Athens? Something else? yes, I think Athens should not be part of the image but a loadable package. > > You have code that deals with streams, should you use the old stream classes or convert everything to Zinc ? And why do we keep both "frameworks" in the image ? Pharo hasn't been backward compatible with the old stream classes a looooooong time ago anyway! again, you are mixing pearls and apples here. (and btw, there was a HUGE refactor of streams on P7) > So what's the plan? For instance, should I keep using the Nautilus Browser or I should switch to the Calypso browser and get used to it because Nautilus will be deprecated? Or should I just don't care because a third system browser will be added in Pharo 8 just because "it's cool, let's add this one too!â ? The plan is continue improving slowly but steadyâ¦ things takes time. > Couldn't we just decide on what's "official" and what's a goodie or an external optional tool/package/framework the same way all other Smalltalks do? If you say Calypso is the official & supported browser, fine! Then just get Nautilus out of the image, create a nice loadable package for it and if someone prefers Nautilus, they'll just have to load it into the image, the same way VW has a gazillion optional tools/packages/frameworks you can load from a parcel! > > Whenever I get asked a simple question by a newbie like "Oh, which system browser should I use?", quite frankly, I don't know what to answer. Did we include Calypso to deprecate Nautilus later? Is Calypso just a proof of concept? Is it just an optional tool? What about all those delay schedulers? You should read this list with more attention. We told at least 10 times Nautilus is going to be removed. We told it in presentations. We told it in tech talks. I donât know how else we could tell it. Maybe a HUGE banner in our site? âHEY YOU, READER: NAUTILUS WILL BE REMOVED!" > "I loaded this code from SqueakSource and it just doesn't work". Should I help the guy to fix it or just tell him to convert all the code to the corresponding framework in Pharo? if there is a corresponding framework yes. Problem is that people tends to believe a package from squeaksource not loading in P7 is our fault and not the responsibility of the package maintainer (or the one wanting to use it). > > Perhaps a little bit of clarity and details about what's coming and what's the plan would be beneficial to a lot of us. Perhaps a little bit of reading? We told it, several times. You cannot take an alpha version and expect production quality. And you cannot expect that things happens magically: engineering takes a lot of time and efforts and we do our best with the resources we have as a community. This is an open source project. With perks and no so muchâ¦ but the way to change things is contributing. And just to be clear: The goal of Pharo was never to be SMALL. The goal is to do a Smalltalk that is at the same time: - Clean (That DOES NOT MEANS SMALL!) - Modern - Fitting for business Iâm sorry for counter-rant your rant, but while there are somethings were you are right, I find the tone of your commentary not very constructive. cheers! Esteban > > > ----------------- > BenoÃ®t St-Jean > Yahoo! Messenger: bstjean > Twitter: @BenLeChialeux > Pinterest: benoitstjean > Instagram: Chef_Benito > IRC: lamneth > Blogue: endormitoire.wordpress.com > "A standpoint is an intellectual horizon of radius zero". (A. Einstein) > >

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[SmalltalkCI] loading tonel dependencies?
by Bernardo Ezequiel Contreras April 15, 2018

April 15, 2018

peter, are you sure that dependencies of a project in tonel format can be loaded? earley-parser -> linked-list see https://travis-ci.org/vonbecmann/earley-parser/builds/365332549 thanks in advance -- Bernardo E.C. Sent from a cheap desktop computer in South America.

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Going to give 4 days lectures at University of Skikda in Algeria
by Stephane Ducasse April 15, 2018

April 15, 2018

Hi Just to let you know that I will be giving a Pharo lectures and advanced design at the University of Skikda in Algeria to Master and PhD students. Thanks Abdelghani Alidra for the organisation. Stef

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QRCode - A thank you note
by Sven Van Caekenberghe April 15, 2018

April 15, 2018

Hi, Given that the mailing lists are often used to ask questions when we get in trouble, report bugs and other issues, conduct public discussion between strong headed individuals, we quickly forget what a fantastic platform Pharo is. Last month I implemented a rough MVP-style ticket sales platform that was successfully used to sell and validate at the entrance, about 1000 digital, online tickets for a relatively large 3000+ attendance event (a party). It took only a couple of days to build and deploy, and it was a lot of fun - it was even done in 'unstable' Pharo 7. Early on I decided to identify each individual ticket by a unique URL. For easier presentation and scanning purposes, I encoded that URL in a QR code. Although I am grateful for the whole Pharo ecosystem (including Seaside), we all build on top of other people's work, I was especially happy with Jochen Rick's QRCode package (http://smalltalkhub.com/#!/~JochenRick/QRCode/) This is such a great piece of work ! It worked right out of the box in Pharo 7 (even though it is from 2013/2014), was well designed, easy to figure out, was well documented, had unit tests. I can't say anything bad about it, it is as close to perfect as I have ever seen. So: thanks Jochen, you made my day ! Here is how a ticket generates its own QR code: T123Ticket>>#asQRCode ^ self url asString asQRCode formWithQuietZone magnifyBy: 5 Just beautiful. It is also easy (for a non-graphics, non-UI person like me) to combine the QR code with some text: T123Ticket >>#asQRCodeWithText | form font | form := Form extent: 535 @ 185 depth: 1. font := LogicalFont familyName: 'Bitmap DejaVu Sans' pointSize: 14. self asQRCode displayOn: form at: 0 @ 0. form getCanvas drawString: self url asString at: 180 @ 20 font: font color: Color black; drawString: self id36, ' - ', ticketId asString at: 180 @ 45 font: font color: Color black; drawString: (name ifNil: [ 'N.N' ]) at: 180 @ 90 font: font color: Color black; drawString: (email ifNil: [ '@' ]) at: 180 @ 115 font: font color: Color black; drawString: (phone ifNil: [ '+' ]) at: 180 @ 140 font: font color: Color black. ^ form Next we combine this with a nice template designed by a graphics artist: T123Ticket >>#asQRCodeWithTextInTemplate | templateFile form | templateFile := 'tickets123-template-{1}.jpg' format: { self event id }. form := PluginBasedJPEGReadWriter formFromFileNamed: templateFile. self asQRCodeWithText displayOn: form at: 20@540. ^ form And finally, the ticket form is encoded as a JPEG (to be mailed and so on): T123Ticket >>#asJPEGBytes ^ ByteArray streamContents: [ :out | PluginBasedJPEGReadWriter putForm: self asQRCodeWithTextInTemplate onStream: out ] I also found GT Inspector very handy (again) in doing back end work (managing payments and other administration), especially the ability to use Spotter on a collection open in an inspector. Anyway, I know many of you have similar happy experiences, I just wanted to share (one of) mine. Thanks Jochen, thanks everyone. Sven -- Sven Van Caekenberghe Proudly supporting Pharo http://pharo.org http://association.pharo.org http://consortium.pharo.org

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[OT] Reminder about quoting/top-posting
by Esteban A. Maringolo April 14, 2018

April 14, 2018

Hi, Please apologize the digression, but these days there were a lot of interesting threads with LOTS of replies from different members. Can I ask for more trimming of the quoted text and/or emails replied to? The follow up of some replies was hard because they were nested deep into a chain of previous quotes, or in the case of top-posters, they keep the replied emails accumulating in the bottom, causing a scroll down to find nothing else was there. Thanks! -- Esteban A. Maringolo

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IDEA: I will record an Iceberg cast (an "Icecast" ; ) ) every tuesday
by Esteban Lorenzano April 14, 2018

April 14, 2018

hi, The idea is to show a small example of something and to answer questions. First âIcecast" will be next Tuesday. You can send your questions in the iceberg channel or in list. cheers, Esteban ps: Is âevery tuesdayâ until I run out of things to show or time ;)

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[TechTalk] April 12: GIT with Iceberg
by Marcus Denker April 13, 2018

April 13, 2018

Hi, There next TechTalk will be April 12: GIT with Iceberg https://association.pharo.org/event-2797068 A regular chat about Pharo. Happens on Discord. The Tech talks are open to both members and non-members! Topic: GIT with Iceberg. Demo of improved UI We will send an information to all subscribers some hours before the talk starts.

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