August 2020 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo-Mars on Ubuntu

by StÃ©phane Ducasse

Esteban is on vacation and Iâm not sure that he is reading emails. Now can you check the path that is used by the FFI call and put your path? may be look at ffiLibrary and ffiLibrary: I do not have an image with Mars at hand. Stef > On 22 Jul 2020, at 11:11, kmo <voxkmp(a)gmail.com> wrote: > > Thanks for the suggestion but everything is 64 bit. > > I added this problem to the mars github issues list (there's an existing > issue for linux problems) and Esteban is now looking at it, so we're getting > somewhere. > > The problem was I had no libgit-3.so in the folder only a libgit.so.0. > > Unfortunately adding a symbolic link hasn't solved my problems. I now get a > VM crash. I've reported this along with the crash dump. > > I'm sure it will be sorted eventually but I've been trying to get mars to > run on ubuntu since May - so progress is slow. Iâm sorry for this. -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 3, 2020

Re: [Pharo-users] Metacello, Github and Cryptography

by StÃ©phane Ducasse

Hi francis did you look at the booklet on iceberg available at http://books.pharo.org? S > On 16 Jul 2020, at 16:43, Francis <falzonidavide(a)libero.it> wrote: > > > From: Francis <falzonidavide(a)libero.it> > Subject: Metacello, Github and Cryptography > Date: 16 July 2020 at 16:43:34 CEST > To: pharo-users(a)lists.pharo.org > > > Hi Guys, > > I'm looking for a guide on how to load a project from github but I can't > find anything. > Specifically I want to load the Cryptography package. Udo, told me it is on > https://github.com/pharo-contributions/Cryptography, so I went to > https://github.com/pharo-contributions/Cryptography but there is no > documentation on how to load it. > > Then after some attempts, I evaluated this code: > > Metacello new > baseline: 'Cryptography'; > repository: 'github://pharo-contributions/Cryptography'; > load. > > and it works, but I can't figure out where is the usage of Metacello with > Github > > Thanks > Francis > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > > -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 3, 2020

Re: [Pharo-users] Text-Editing UI

by tbrunz

If you do, send me a message about what you're considering, and I can help you choose. I'm much more knowledgeable about CBs that the average person -- especially about programming on them & using Linux on them. Another nice thing about Chromebooks is that they're inexpensive. Meaning, you get a lot for the price. They used to all be fairly low-performance "budget" devices, but they've been catching on, and now pretty much all the manufacturers make a variety of models. What's really interesting are the "power user" models. Google started the trend by selling the "Pixel" model to attendees of their "Google I/O" conferences, starting in 2013. They did it again in 2015. Both have touchscreens -- they were the only ones at the time with T/S. The 2015 model was available as an i5/8GB/32GB (cpu/ram/ssd -- they don't have a lot of disk space because you're encouraged to save things in "the cloud"; you get a lot of free Google Drive space as part of buying a CB). Then there was the "LS" (Ludicrous Speed) model that's an i7/16GB/64GB. (The CPU is a dual-core Broadwell mobile with HT enabled -- it's no slouch.) The hardware, for the time, was second-to-none. It was Google's way of showing the world, "Look what you can do!" as well as a perk for power users. Now many of the mfgrs have high-end models, many of which are really nice systems. And for "content consumption", they're just as much an "appliance" as iPads. Turn them on & go... You can't break them. Perfect for "the parents" or anyone who's not tech-savvy. But unlike iPad devices, you can conveniently create content, such as emails, etc. So the 2015 Pixel was too much for me to pass up... I didn't go to Google I/O, but you can always count on a percentage of recipients to flip them on eBay. Which they did, so I bought one. It's been a good value, and the hardware really is top-notch. Of course I wasted no time in learning how to run Linux apps on them. First was "Crouton", a side project of a Google engineer. That gave way to "Crostini", an official Google project to add Linux, but in a container -- and a supported feature. (Like many things Google, it's "in beta", but it works well, so 'who cares?') My wife got the 2015 Pixel LS when I got the base model of the Pixelbook (i7/8GB/128GB) when it came out a couple of years ago -- Google gave them more SSD so you can add your Linux development environments. So I added all my Ubuntu tools, and Pharo Launcher, and my images... Everything works, including file & network access. (Linux containers share a directory with the ChromeOS file system that's visible from the Chrome environment.) The only thing I needed to do was write a bash script that will enlarge the cursor (because the Pixel/Pixelbook screens are hi-dpi, like my 7710) and set the font size in my images to "Large". That script is here: https://github.com/tbrunz/pharo-support -t -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 2, 2020

Re: [Pharo-users] Text-Editing UI

by Russ Whaley

Wow! Nice to know there are success stories like yours. When we were having issues and trying to determine which way we should go to, we just couldnât find good answers on the CB side. Perhaps we should give it another go! On Sun, Aug 2, 2020 at 5:34 PM tbrunz <wild.ideas(a)gmail.com> wrote: > Of course, ask a half-dozen people about this subject and you'll get 6 > different responses... > > Between myself, my wife, my daughter, family, friends, we've had at least 8 > CBs. None have failed. My wife is still using (and loving) the 2015 Pixel > LS CB I got 5 years ago. Not even the battery has degraded. > > My daughter used one CB for her entire undergrad program. (I offered to > get > her a "real laptop" before she started as a Freshman, but she insisted she > wanted a CB). The only thing I needed to do was add Eclipse and the Java > JDK to it for one of her classes. (The programming nerds in her class were > impressed that she was developing Java on a CB.) > > For graduation, I upgraded her to a Pixelbook CB. I rebuilt her original > CB > with GalliumOS -- a Linux distro optimized to run CB hardware. It's still > running... > > Chromebooks run Android, Linux, Chrome apps, Windows apps... All except > Mac > apps. > > First-world problems indeed... And mostly a religious issue. I'm fine if > you use Apple products. But I haven't a solution to suggest in that case! > > For the record, I have a Pixelbook (the photo), but I also have a DIY tower > and a Dell 7710. The CB gives me portability + Pharo. > > (If you do go back to a CB, just be sure you check the specs: Intel CPU > only, and be sure it can run "Crostini" so you get Linux containers.) > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > -- Russ Whaley whaley.russ(a)gmail.com

Aug. 2, 2020

Re: [Pharo-users] Intermediate-Level Tutorials for Pharo

by StÃ©phane Ducasse

Hi Thanks I was planning to implement it. I asked Esteban to take the time to integrate my PR. Now can you send some PRs to the version of esteban like that we will get a better version. And you can open issues on his repo We will fix them. S > On 2 Aug 2020, at 20:22, Russ Whaley <whaley.russ(a)gmail.com> wrote: > > Here are a couple of items with my first 5 minutes with the TODO tutorial... > TODOListPresenter >> initializePresenters > > todoListPresenter := self newTable > addColumn: ((SpCheckBoxTableColumn evaluated: [:task | task isDone]) width: 20); > addColumn: (SpStringTableColumn title: 'Title' evaluated: [:task | task title]); > yourself. > > self layout: (SpBoxLayout newVertical > add: todoListPresenter; > yourself) > > In this portion (Showing Tasks) - it does not define todoListPresenter.... is it a local or a missed instVar. I tried it first as a local to enable save, but then... > TODOListPresenter >> updatePresenter > > todoListPresenter items: TODOTask selectAll asOrderedCollection > > todoListPresenter isn't available for updatePresenter... so I'm assuming it must be an instvar? I created accessors, then changed all the todoListPresenter references to use the accessors (below). > TODOListPresenter >> initializePresenters > > self todoListPresenter: (self newTable > addColumn: ((SpCheckBoxTableColumn evaluated: [:task | task isDone]) width: 20); > addColumn: (SpStringTableColumn title: 'Title' evaluated: [:task | task title]); > yourself). > > self layout: (SpBoxLayout newVertical > add: self todoListPresenter; > yourself) > and... > TODOListPresenter >> updatePresenter > > self todoListPresenter items: TODOTask selectAll asOrderedCollection > > Also, in the first example - task isDone needs to be defined (and might be defined later in the tutorial) - I'm assuming SpCheckBoxTableColumn>>evaluated: is expecting a boolean, or do I need to convert this somehow? I can check all these things out - but just curious if I'm missing something? > TODOTask >> done > > ^ done > TODOTask >> isDone > > ^ self done > > I'll go through a bit more and update you on my progress. Ted, I also hope to get to take a look at Zebra today :) > > > > > On Sun, Aug 2, 2020 at 2:07 PM StÃ©phane Ducasse <stephane.ducasse(a)inria.fr <mailto:stephane.ducasse@inria.fr>> wrote: > > >> On 2 Aug 2020, at 19:51, tbrunz <wild.ideas(a)gmail.com <mailto:wild.ideas@gmail.com>> wrote: >> >>>> I've been thinking lately that it would be nice to expand the number of >>>> Pharo tutorials we have available. But rather than (or along with) >>>> creating >>>> more "beginner" level tutorials, I'd like to see some good "intermediate" >>>> level Pharo tutorials. >>> >>> Me too :) >> >> Let's do it, then. I'll volunteer to do most of the work. :^) > > I will review anything you write :) >> >> My hope is that participating in this will make me capable of creating >> advanced tutorials all by myself. > > I usually like to write to learn and dump what I learned. >> >>>> I think that programmers who already know the Pharo >>>> syntax and messaging semantics could benefit from more advanced tutorials >>>> that demonstrate how to develop "real world" Pharo code for "real world" >>>> processing needs. >>> >>> Yes yes I would love that. >> >> That was part of my motivation for creating a Pharo app to solve the Zebra >> Puzzle. First, of course, I wanted to solve it. ;^) > > I will send you some feeedback and PR. >> >>>> What I'm talking about is something that assumes you know the language, >>>> the >>>> basics of the IDE (but not necessarily how to leverage its capabilities >>>> to >>>> aid development), and the basics of the foundation classes (but not its >>>> details). I'd like a tutorial for intermediate Pharo programmers who >>>> want >>>> to become experts with Pharo. Something that can show you how to apply >>>> the >>>> tools of the IDE and the features of the language and base classes to >>>> create >>>> solutions that solve complex problems. >>> >>> do you have ideas? >> >> I do! >> >> As I started building the Logic Puzzle app, it occurred to me that I could >> probably find several different, common structures in OOP (specifically, >> Pharo) to add to the solution. And then each would be its own example of >> "what real Pharo code looks like". I.e., be good examples. >> >> But first, I needed to explore "how to do it in Pharo" for myself, which >> naturally would have me working the IDE strongly. >> >> Then I thought, the entire application can/should be an example, so it >> should be a tutorial. >> >> That means that I need more than just a completed application (that's "just >> an example"). To be a *tutorial*, it means starting from scratch, showing >> how to approach the solution, how to start a Pharo app, how to use the IDE, >> how to write tests, how to refactor code, etc. >> >> Then I thought, this needs a GUI. Either a Spec2 UI or a web app UI (with >> Seaside or Teapot). But I would need help with that! So I'll start by >> creating a message-based solution, and maybe get help to add a UI later. >> >> I did some prototyping, then got what I think might be a good code structure >> (by version 4; it took a while to "think pure OOP"; old habits are hard to >> fight against). It runs, it works. >> >> But.. Is it "good Pharo code"? I'm not experienced enough to answer that >> question. I need a code review, criticism, guidance. Point me in the right >> direction and I'll keep working on it, and start thinking about how to >> express the "meta" elements (how to use the IDE to make/test the code, >> etc.). >> >>>> What does the community think of this idea? >>> >>> I love it. I did Pharo by example so that I can get of rid of the beginner >> parts. >>> After I did learning OOP and Pharo with style so that I do not have to talk >> about it >>> again. >>> >>> So definitively. >> >> Okay, great. I'll do most of the work. But I need help... >> >> I don't want to go any further without someone much more experienced than I >> am to review what I have and let me know what I'm doing right & what I'm >> doing "no quite so right". Yes, it runs, it works -- but that's *not* good >> enough. The goal here isn't to "hack out a solution and move on", the goal >> is to "create an example and tutorial that's high enough quality to use to >> teach Pharo to other people". I don't want to be teaching *my* bad habits! >> >> Also, I know next to nothing about Spec2 or Seaside/Teapot. I just know >> that I need to learn it, and I need to use it to give my tutorial a UI (or >> two). Newcomers will show up wanting to learn Pharo, and they need to be >> reassured that they can create nice (enough) UIs without a huge effort. >> (Not everyone is a command line hacker, and end-users certainly don't want >> to be.) >> >> The more I learn (from you), the more I can be independent, and the more >> tutorials I could produce -- without a lot of help. I'm willing to do the >> work, because that will help make me a Pharo "master programmer". (I don't >> want to be a hack, and I can't really be a trainer if I'm just a hack >> myself.) >> >> I'll pay back the community by helping to attract and advance more >> developers' skills. I just have to have the more advanced knowledge & >> skills myself. So, train the (future) trainer, anyone?? >> >> -Ted >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html <http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html> >> > > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr <http://stephane.ducasse.free.fr/> / http://www.pharo.org <http://www.pharo.org/> > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley, > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France > > > > -- > Russ Whaley > whaley.russ(a)gmail.com <mailto:whaley.russ@gmail.com> -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

Aug. 2, 2020

Re: [Pharo-users] A warning under PharoLauncher 1.8-2019.03.27

by Rene Paul Mages (ramix)

Le 02/08/2020 Ã 22:44, tbrunz a Ã©critÂ : > Hi Rene, > > Are you running Pharo Launcher 2.0? > > I saw these under 2.0, then upgraded to 2.2 and I haven't seen it since. > > -Ted Thanks a lot Ted. After your recommended upgrade the issue is gone. -- All the best Rene Paul Mages (ramix) GnuPG key 0x9840A6F7 http://www.pharo.fr http://www.linux-azur.org/ramix http://twitter.com/RenePaulMages

Aug. 2, 2020

Re: [Pharo-users] Text-Editing UI

by tbrunz

Of course, ask a half-dozen people about this subject and you'll get 6 different responses... Between myself, my wife, my daughter, family, friends, we've had at least 8 CBs. None have failed. My wife is still using (and loving) the 2015 Pixel LS CB I got 5 years ago. Not even the battery has degraded. My daughter used one CB for her entire undergrad program. (I offered to get her a "real laptop" before she started as a Freshman, but she insisted she wanted a CB). The only thing I needed to do was add Eclipse and the Java JDK to it for one of her classes. (The programming nerds in her class were impressed that she was developing Java on a CB.) For graduation, I upgraded her to a Pixelbook CB. I rebuilt her original CB with GalliumOS -- a Linux distro optimized to run CB hardware. It's still running... Chromebooks run Android, Linux, Chrome apps, Windows apps... All except Mac apps. First-world problems indeed... And mostly a religious issue. I'm fine if you use Apple products. But I haven't a solution to suggest in that case! For the record, I have a Pixelbook (the photo), but I also have a DIY tower and a Dell 7710. The CB gives me portability + Pharo. (If you do go back to a CB, just be sure you check the specs: Intel CPU only, and be sure it can run "Crostini" so you get Linux containers.) -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 2, 2020

Re: [Pharo-users] A warning under PharoLauncher 1.8-2019.03.27

by tbrunz

Hi Rene, Are you running Pharo Launcher 2.0? I saw these under 2.0, then upgraded to 2.2 and I haven't seen it since. -Ted -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 2, 2020

A warning under PharoLauncher 1.8-2019.03.27

by Rene Paul Mages (ramix)

Hello, When the following command is launched : ./pharolauncher/pharo-launcher we can see this warning : http://ramix.org/pharo/version-8.0/InstanceVariableNotFound.png Nota Bene : my laptop in running under Linux Mint 18.3 _Sylvia_ - Release amd64 20171124]/ xenial contrib main non-free -- Thanks for your help. Rene Paul Mages ( GnuPG_key 0x9840A6F7 ) http://www.pharo.fr http://www.linux-azur.org/ramix http://twitter.com/RenePaulMages

Aug. 2, 2020

Re: [Pharo-users] Text-Editing UI

by Russ Whaley

:) indeed it is On Sun, Aug 2, 2020 at 4:27 PM tbrunz <wild.ideas(a)gmail.com> wrote: > Look at the keyboard -- that's a Chromebook, not a WinTel or Linux laptop. > > <http://forum.world.st/file/t372161/Pharo-on-Chromebook_2019-0127.jpg> > > That was about a year & a half ago. > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > -- Russ Whaley whaley.russ(a)gmail.com

Aug. 2, 2020