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

[ANN] Pharo 8.0 Released!
by Esteban Lorenzano Jan. 21, 2020

Jan. 21, 2020

Dear World and dynamic language lovers: The time has come for Pharo 8.0 <https://pharo.org/>! Pharo is a pure object-oriented programming language and a powerful environment, focused on simplicity and immediate feedback. Here are the key highlights of this release: The 64-bit version has become the recommended version for Windows as it was for Unix and OSX. Iceberg, the git client for Pharo, reached its version 1.6.5 with several improvements and bugfixes. Calypso, Pharoâs system browser has new and better refactoring integrations and AST-based suggestions for class definitions. The unified foreign function interface (UnifiedFFI) has been improved with more support for literal objects, better type coercions, and more documentation. Several speed improvements in code searches and compilation. In addition, this version includes several previews of new tools such as the Spec2 GUI framework with native widget integration and the new DrTests test analysis tool and opens the door for the upcoming headless VMs for servers and non-blocking FFI. These are just the more prominent highlights, but the details are just as important. We have closed a massive amount of issues: 2805 issues! A comprehensive changelog can be found at https://github.com/pharo-project/pharo-changelogs/blob/master/Pharo80Change… <https://github.com/pharo-project/pharo-changelogs/blob/master/Pharo60Change…>). While the technical improvements are significant, still the most impressive fact is that the new code that got in the main Pharo 8.0 image was contributed by more than 100 people. Pharo is more than code. It is an exciting project involving energetic people. We thank all the contributors to this release: Serge Stinckwich, Myroslava Romaniuk, Hilaire Fernandes, Alexandre Bergel, David Bajger, Sean DeNigris, Theodore Moen, Dayne Guerra Calle, Juraj Kubelka, Max Leske, Santiago Jose Dandois, Alistair Grant, Sabine Mana, Chia Yu, Stephan Eggermont, Milton Mamani, Pavel Krivanek, Ben Coman, Marcus Denker, Pierre Misse, Christophe Demarey, Allex Oliveira, Andreina Cota, Theo Rogliano, ClÃ©ment Dutriez, Quentin Ducasse, Cyril Ferlicot, Cameron Bierwagen, Marek Niepieklo, Clotilde Toullec, Esteban Lorenzano, Vincent Blondeau, Danil Osipchuk, Eiichiro Ito, Noury Bouraqadi, Oleksandr Zaytsev, Jason Riggs, Alain Plantec, Kasper Osterbye, Leonardo Cecchi, Chi Huynh, Santiago Bragagnolo, Antonio Pierro, Pablo Tesone, Tim Mackinnon, Wesley Duerksen, Wilfred Hughes, John Brant, Evelyn Cusi Lopez, Manuel Leuenberger, Thomas Dupriez, Norbert Hartl, Torsten Bergmann, Gabriel Omar Cotelli, Carlo Teixeira, Guille Polito, Torsten Bergman, Damien Pollet, Holger Hans Peter Freyther, Julio Ripoll, Carolina Hernandez Phillips, Julien Delplanque, Hugo Lasnier, James Foster, Will Hensel, Erik Stel, Sven Van Caekenberghe, MartÃn Dias, Tomohiro Oda, Konrad Hinsen, SeÌbastien Roccaserra, StÃ©phane Ducasse, Denis Kudriashov, Ellis Harris, Steven Costiou (If you contributed with Pharo 8.0 development in any way and we missed your name, please send us a mail and we will add you). Enjoy! The Pharo Team Try Pharo: http://pharo.org/download <https://pharo.org/download> Learn Pharo: http://pharo.org/documentation <https://pharo.org/documentation> If you cannot see this, follow this link: http://pharo.org/news/pharo8.0-released

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Embedding pharo in C++
by Roland PlÃ¼ss Jan. 21, 2020

Jan. 21, 2020

As the topic title mentions I would like to embed pharo into a GPL/L-GPL licenses software. I experimented before with a PoC based on GnuSmalltalk which allows embedding and this worked but GnuSmalltalk is kinda outdated and even fails to properly compile since some time. For this reason I would like to do another PoC but with Pharo to see if this would be a candidate to use in the project. The application is C++ based but a C interface is fine with me too. Important is that the Pharo VM is fully controlled by the application not running a pharo image with a VM binary or things like that. Is this possible and if yes how does it work? -- Yours sincerely PlÃ¼ss Roland Leader and Head Programmer - Game: Epsylon ( http://www.indiedb.com/games/epsylon ) - Game Engine: Drag[en]gine ( http://www.indiedb.com/engines/dragengine , http://dragengine.rptd.ch/wiki ) - As well as various Blender export scripts und game tools

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[ANN] Pharo TechTalk Jan 23
by Marcus Denker Jan. 21, 2020

Jan. 21, 2020

A regular chat about Pharo. Happens on Discord. â¢ When 23 Jan 2020 â¢ 5:00 PM - 6:00 PM (UTC+01:00) Topic: Contributing to Iceberg (Git support) https://association.pharo.org/event-3697009

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Generate class hierarchy from JSON Schema
by Serge Stinckwich Jan. 21, 2020

Jan. 21, 2020

Hi there, anyone has experience about generating a class hierarchy from a JSON Schema ? Code available somewhere ? Thank you. -- Serge Stinckwic h Int. Research Unit on Modelling/Simulation of Complex Systems (UMMISCO) Sorbonne University (SU) French National Research Institute for Sustainable Development (IRD) U niversity of YaoundÃ© I, Cameroon "Programs must be written for people to read, and only incidentally for machines to execute." https://twitter.com/SergeStinckwich

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Minipedia: Reimagining a Solarpunk Wikipedia from/for Global South
by Offray Vladimir Luna CÃ¡rdenas Jan. 21, 2020

Jan. 21, 2020

Hi all :-), I made a small project last week, as a way to say good bye to my vacations ;-) and I thought you may be interested. We will be making some sparse activities around this project in our local hackerspace. On the technical level, Minipedia reimagines Wikipedia as made with Pharo and Fossil, instead of PHP, MySQL, Apache and so on. Below some teaser texts and images and you can find more at: https://mutabit.com/repos.fossil/minipedia/ Cheers, Offray Luna Minipedia is a project that follows the Grafoscopio <https://mutabit.com/grafoscopio/en.html> Community principle of "/simplifying infrastructure to amplify participation/", reimagining Wikipedia as an enabler of Solarpunk(1 <https://wiki.sunbeam.city/>,2 <https://wiki.sunbeam.city/>) futures where the Global South people are equals in building the Knowledge Commons by helping to blur the distintion between (de)constructing contents and (de)constructing inclusive empowering interactive infrastructures, easier to understand, use, extend, and modify. Our working hypothesis is that will change the way we build Knowledge Commons contents together, when we change the way we build together enabling infrastructures for those contents and the people behind.

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[ANN] Youtube video explaining how to set-up a Pharo project
by Julien Delplanque Jan. 20, 2020

Jan. 20, 2020

Hello, I recorded myself setting up a Pharo project on Github this afternoon. https://www.youtube.com/watch?v=Wnt3OBhR18I The video shows how to: - Create git repository on Github, make Pharo be aware of it via Iceberg - Set-up the CI - Add CI badge and install script to your README (which we should all do systematically... :-) ). This can be useful for newcomers. Cheers, Julien

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Re: [Pharo-users] Pharo connect to PostgreSQL
by Sven Van Caekenberghe Jan. 20, 2020

Jan. 20, 2020

Hi, You are not saying which library/framework you are trying to use. One up to date option is P3, the "lean and mean PostgreSQL client for Pharo " [ https://github.com/svenvc/P3 ]. A connection to your database could then be specified using a URL. To test the connection: (P3Client url: 'psql://postgres:lucian@localhost:5432/mydb') in: [ :client | [ client isWorking ] ensure: [ client close ] ]. To do a query: (P3Client url: 'psql://postgres:lucian@localhost:5432/mydb') in: [ :client | [ (client query: 'SELECT * FROM some_table') recordsAsDictionaries ] ensure: [ client close ] ]. Of course, you first have to make sure external clients can connect to your db (try the psql command line client over TCP first). HTH, Sven Apart from https://postgresql.org, the following site is pretty good: https://www.postgresqltutorial.com. On macOS, I recommend https://postgresapp.com. > On 20 Jan 2020, at 12:37, Macmus via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Macmus <luci.barcan(a)yahoo.com> > Subject: Pharo connect to PostgreSQL > Date: 20 January 2020 at 12:37:13 GMT+1 > To: pharo-users(a)lists.pharo.org > > > I am trying to connect to a PostgreSQL database from Pharo but I keep getting > "SubscriptOutOfBounds: 11" error (I am a beginner). The server is started > and the database is working fine. What am I missing? > > > |connectionArguments connection resultSets resultSet rows firstRow| > > connectionArguments := PG3ConnectionArguments new > hostname: 'localhost'; > port: 5432; > username: 'postgres'; > password: 'lucian'; > databaseName: 'mydb' > yourself. > connection := connectionArguments newConnection. > > connection startup. > > resultSets := connection execute: 'select 3 + 4, now()'. > resultSet := resultSets first. > rows := resultSet rows. > firstRow := rows first. > firstRow at: 1. > firstRow at: 2. > > connection terminate. > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > >

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Pharo connect to PostgreSQL
by Macmus Jan. 20, 2020

Jan. 20, 2020

I am trying to connect to a PostgreSQL database from Pharo but I keep getting "SubscriptOutOfBounds: 11" error (I am a beginner). The server is started and the database is working fine. What am I missing? |connectionArguments connection resultSets resultSet rows firstRow| connectionArguments := PG3ConnectionArguments new hostname: 'localhost'; port: 5432; username: 'postgres'; password: 'lucian'; databaseName: 'mydb' yourself. connection := connectionArguments newConnection. connection startup. resultSets := connection execute: 'select 3 + 4, now()'. resultSet := resultSets first. rows := resultSet rows. firstRow := rows first. firstRow at: 1. firstRow at: 2. connection terminate. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Pharo display bug
by Richard Kenneth Eng Jan. 19, 2020

Jan. 19, 2020

I don't know how to report Pharo bugs, so I'll just mention that the Pharo IDE isn't displaying code properly. For example: [image: image.png] Look at "map cellAt: ". The 'A' and 't" are mashed together. Another example: [image: image.png] Look at ":cellA:cellB | cellA energy ". It's not displaying the space between "cellA" and "energy". This is more than just a display bug because how the hell are you supposed to edit this code??? Richard

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Latest Pharo Update
by Richard Kenneth Eng Jan. 18, 2020

Jan. 18, 2020

The latest update to Pharo causes a "PrimitiveFailed: primitive #newProcess in ProcessWrapper class failed" message??? How did this happen?

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