- Pharo-users - lists.pharo.org

Re: [Pharo-users] [ANN] New GoFundMe Campaign

by horrido

Some guy named David Ferrell just donated CAN$6,775 to GoFundMe!!! He must be one f*cking BIG Smalltalk/Pharo fan! Along with GemTalk System's CAN$1,311 and a few other donors, I am more than 58% of the way to reaching my funding goal! This is a huge vote of confidence for JRMPC and my management of it. Please consider donating. Now, I realize some of you may be thinking, "Why should I donate to a */Canadian/* Pharo programming competition?" But the point is, this competition shows the world that Smalltalk has "legs." It doesn't matter what nationality it is. Canada just happens to be a convenient lightning rod. (Which is also why Camp Smalltalk Supreme will be held in Toronto, Canada in 2022.) What other "non-mainstream" programming language enjoys this kind of attention and support? Surely not Ceylon, Clojure, Crystal, Erlang/Elixir, F#, Haskell, Haxe, Julia, Kotlin, Lua, Nim, OCaml, and Racket. None of these languages are used in any national programming competition. Let's show some solidarity. Thanks. horrido wrote > https://www.gofundme.com/f/jrmpc-2?utm_source=customer&utm_medium=copy_link… > > Please give generously! > > Thanks. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

July 18, 2020

UFFI asynchronous callbacks

by ASAM

I use Pharo 8(64bit) UFFI to call a dll(64bit). Over the dll I have access to 1 or more hardware devices. The dll has a function where I can register a call-back function. The callback is invoked whenever a hardware is connected or disconnected from PC. At the moment, Pharo always crashes when the callback is executed by the dll. Before I waste my time trying to find the bug. I wanted to ask firstâ¦ Is Pharo supporting asynchronous callbacks? I also found this old thread but the last entry is from 2017. http://forum.world.st/UFFI-with-asynchronous-callbacks-td4993968.html#a5014… Now I wanted to check the current status. Thanks for your help. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

July 18, 2020

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

by Vitor Medina Cruz

https://github.com/pharo-open-documentation/pharo-wiki/blob/master/General/… On Fri, Jul 17, 2020 at 7:12 AM Francis via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Thank you very much Christophe! > Thanks also for the links on Metacello, I've already seen them, but as you > pointed out, there is no hint on the usage with Github. > > Perhaps it should be an instruction section here: > https://pharo.org/community > > Cheers > Francis > > > demarey wrote > > Hi Francis, > > > >> Le 16 juil. 2020 Ã 16:43, Francis via Pharo-users < > > > pharo-users@.pharo > > > > a Ã©crit : > >> > >> > >> De: Francis < > > > falzonidavide@ > > > > > >> Objet: Metacello, Github and Cryptography > >> Date: 16 juillet 2020 Ã 16:43:34 UTC+2 > >> Ã: > > > pharo-users@.pharo > > >> > >> > >> 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. > > > > Yes, you usually load a project like this. > > > >> and it works, but I can't figure out where is the usage of Metacello > with > >> Github > > > > Metacello allows to define the dependencies of a project. > > If Cryptography relies on other projects (hosted on GitHub or somewhere > > else), then Metacello will load these dependencies so you end with all > > needed packages to get the project (in this case Cryptography) fully > > working. If you load the project directly with iceberg (not using the > > iceberg metacello plugin), you will miss project dependencies and the > code > > will not be runnable. > > If a project has no dependency, Metacello still allows to define > > dependencies of packages inside your project to load them in the right > > order. > > More information on Metacello: > > > http://files.pharo.org/books-pdfs/deep-into-pharo/2013-DeepIntoPharo-EN.pdf > > (chapter Managing projects with Metacello), > > > https://github.com/Metacello/metacello/blob/master/docs/MetacelloUserGuide.… > > and > > > https://github.com/Metacello/metacello/blob/master/docs/GettingStartedWithG… > > > > Regards, > > Christophe. > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

July 17, 2020

Re: Metacello, Github and Cryptography

by Francis

Thank you very much Christophe! Thanks also for the links on Metacello, I've already seen them, but as you pointed out, there is no hint on the usage with Github. Perhaps it should be an instruction section here: https://pharo.org/community Cheers Francis demarey wrote > Hi Francis, > >> Le 16 juil. 2020 Ã 16:43, Francis via Pharo-users < > pharo-users@.pharo > > a Ã©crit : >> >> >> De: Francis < > falzonidavide@ > > >> Objet: Metacello, Github and Cryptography >> Date: 16 juillet 2020 Ã 16:43:34 UTC+2 >> Ã: > pharo-users@.pharo >> >> >> 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. > > Yes, you usually load a project like this. > >> and it works, but I can't figure out where is the usage of Metacello with >> Github > > Metacello allows to define the dependencies of a project. > If Cryptography relies on other projects (hosted on GitHub or somewhere > else), then Metacello will load these dependencies so you end with all > needed packages to get the project (in this case Cryptography) fully > working. If you load the project directly with iceberg (not using the > iceberg metacello plugin), you will miss project dependencies and the code > will not be runnable. > If a project has no dependency, Metacello still allows to define > dependencies of packages inside your project to load them in the right > order. > More information on Metacello: > http://files.pharo.org/books-pdfs/deep-into-pharo/2013-DeepIntoPharo-EN.pdf > (chapter Managing projects with Metacello), > https://github.com/Metacello/metacello/blob/master/docs/MetacelloUserGuide.… > and > https://github.com/Metacello/metacello/blob/master/docs/GettingStartedWithG… > > Regards, > Christophe. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

July 17, 2020

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

by Christophe Demarey

Hi Francis, > Le 16 juil. 2020 Ã 16:43, Francis via Pharo-users <pharo-users(a)lists.pharo.org> a Ã©crit : > > > De: Francis <falzonidavide(a)libero.it> > Objet: Metacello, Github and Cryptography > Date: 16 juillet 2020 Ã 16:43:34 UTC+2 > Ã: 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. Yes, you usually load a project like this. > and it works, but I can't figure out where is the usage of Metacello with > Github Metacello allows to define the dependencies of a project. If Cryptography relies on other projects (hosted on GitHub or somewhere else), then Metacello will load these dependencies so you end with all needed packages to get the project (in this case Cryptography) fully working. If you load the project directly with iceberg (not using the iceberg metacello plugin), you will miss project dependencies and the code will not be runnable. If a project has no dependency, Metacello still allows to define dependencies of packages inside your project to load them in the right order. More information on Metacello: http://files.pharo.org/books-pdfs/deep-into-pharo/2013-DeepIntoPharo-EN.pdf (chapter Managing projects with Metacello), https://github.com/Metacello/metacello/blob/master/docs/MetacelloUserGuide.… and https://github.com/Metacello/metacello/blob/master/docs/GettingStartedWithG… Regards, Christophe.

July 17, 2020

Re: Metacello, Github and Cryptography

by Francis

Nobody? -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

July 17, 2020

Re: [Pharo-users] Iceberg: Installing a baseline from a self hosted Git/Gitea repository branch

by Christophe Demarey

Hi Offray, You can also use something like: location := FileLocator localDirectory / 'iceberg' / 'pharo-contributions' / 'taskit'. (IceRepositoryCreator new location: location; remote: (IceGitRemote url: 'https://github.com/pharo-contributions/taskit.git'); createRepository) register. Metacello new repository: 'gitlocal://', location fullName; baseline: 'TaskIt'; load Regards, Christophe > Le 16 juil. 2020 Ã 20:04, Offray Vladimir Luna CÃ¡rdenas <offray.luna(a)mutabit.com> a Ã©crit : > > Hi Pierce, > > I'm loading the stuff in the self Gitea repositories from local copies > and in the order I know they are needed. So in a sense I following a > similar behavior as yours (but I will use the `tonel:///` trick now when > needed, thanks for it). > > My problem is with sharing my baseline with others to ease their > installation of the packages I develop, without using Git oligopolistic > providers (GitHub, GitLab and Bitbucket), but instead self hosted > community Gitea instances. > > From this thread, I imagine that the path to follow is to extend the > Metacello Git providers to include Gitea instances. I will see how the > current ones are implemented and what can I contribute using them as a > template for new providers and see how to contribute this back to Pharo > as a Metacello "plugin". I will share advances and questions here. > > Cheers, > > Offray > > On 15/07/20 10:19 p. m., Pierce Ng wrote: >> On Wed, Jul 15, 2020 at 08:41:04AM -0500, Offray Vladimir Luna CÃ¡rdenas wrote: >>> So, a better question would be: Is possible to load programatically (via >>> a code snippet) using Iceberg, Monticello or something else a baseline >>> that installs a project and its dependencies and is hosted in an >>> independent Git provider? How can self hosted git repositories >>> containing baselines be loaded? >> Hi Offray, >> >> I don't define dependencies in baselines for stuff in my self-hosted >> Gitea because I work on them myself and I know their interdependencies. >> And since I am working on them, they are all locally checked out. >> >> I load my stuff in the correct order like this: >> >> Metacello new >> baseline: 'StuffOne'; >> repository: 'tonel:///home/pierce/work/git/StuffOne/src'; >> load. >> >> Metacello new >> baseline: 'StuffTwo'; >> repository: 'tonel:///home/pierce/work/git/StuffTwo/src'; >> load. >> >> Here StuffTwo is dependent on StuffOne. To be clear, I have written >> baselines for StuffOne and StuffTwo, which is how I am loading them >> here. I'm just not defining in StuffTwo's baseline that StuffOne is a >> dependency. >> >> For me this is more agile because I only need to edit my load snippet >> and I get immediate feedback by running it. The Git repo roundtripping >> of fixing up dependencies in baselines OTOH feels more like the >> edit-compile-test cycle. Eventually if/when I publish StuffOne and >> StuffTwo, I do have to define the dependencies but it'll be easy because >> then they'll be on Github. >> >> Pierce >> >> > >

July 16, 2020

Re: [Pharo-users] Iceberg: Installing a baseline from a self hosted Git/Gitea repository branch

by Offray Vladimir Luna CÃ¡rdenas

Hi Pierce, I'm loading the stuff in the self Gitea repositories from local copies and in the order I know they are needed. So in a sense I following a similar behavior as yours (but I will use the `tonel:///` trick now when needed, thanks for it). My problem is with sharing my baseline with others to ease their installation of the packages I develop, without using Git oligopolistic providers (GitHub, GitLab and Bitbucket), but instead self hosted community Gitea instances. >From this thread, I imagine that the path to follow is to extend the Metacello Git providers to include Gitea instances. I will see how the current ones are implemented and what can I contribute using them as a template for new providers and see how to contribute this back to Pharo as a Metacello "plugin". I will share advances and questions here. Cheers, Offray On 15/07/20 10:19 p.Â m., Pierce Ng wrote: > On Wed, Jul 15, 2020 at 08:41:04AM -0500, Offray Vladimir Luna CÃ¡rdenas wrote: >> So, a better question would be: Is possible to load programatically (via >> a code snippet) using Iceberg, Monticello or something else a baseline >> that installs a project and its dependencies and is hosted in an >> independent Git provider? How can self hosted git repositories >> containing baselines be loaded? > Hi Offray, > > I don't define dependencies in baselines for stuff in my self-hosted > Gitea because I work on them myself and I know their interdependencies. > And since I am working on them, they are all locally checked out. > > I load my stuff in the correct order like this: > > Metacello new > baseline: 'StuffOne'; > repository: 'tonel:///home/pierce/work/git/StuffOne/src'; > load. > > Metacello new > baseline: 'StuffTwo'; > repository: 'tonel:///home/pierce/work/git/StuffTwo/src'; > load. > > Here StuffTwo is dependent on StuffOne. To be clear, I have written > baselines for StuffOne and StuffTwo, which is how I am loading them > here. I'm just not defining in StuffTwo's baseline that StuffOne is a > dependency. > > For me this is more agile because I only need to edit my load snippet > and I get immediate feedback by running it. The Git repo roundtripping > of fixing up dependencies in baselines OTOH feels more like the > edit-compile-test cycle. Eventually if/when I publish StuffOne and > StuffTwo, I do have to define the dependencies but it'll be easy because > then they'll be on Github. > > Pierce > >

July 16, 2020

Metacello, Github and Cryptography

by Francis

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

July 16, 2020

Re: [Pharo-users] mentor help continued

by Richard O'Keefe

You "have to make a clock where the minutes and seconds should not be above 60." What does that actually *mean*? The *second* part of a UTC time can be 60. The *minute* part cannot. So the limits for minutes and seconds should be different. But what does "should not be above" mean? One approach, given h, m, s is m := s // 60 + m. s := s \\ 60. h := m // 60 + h. m := m \\ 60. h := h \\ 24. In that approach, the interpretation of (h,m,s) is - start with midnight - add h hours m minutes and s seconds of duration Another approach is (s between: 0 and: 60) ifFalse: [s error: 'out of range']. (m between: 0 and: 59) ifFalse: [m error: 'out of range']. (h between: 0 and: 23) ifFalse: [h error: 'out of range']. -- which completely fails to check that s, m, and h are integers. We really want a version of #between:and: that checks that the receiver and arguments are integers. The first approach gets valid leap seconds wrong. The second approach quietly accepts invalid leap seconds. Currently, leap seconds can only occur on December 31 or June 30. And you have to rely on tables to know *which* years have which leap seconds. There is a proleptic formula you can use to fill in leap seconds for years in the past before there was such a thing as leap seconds, but it doesn't help to predict future leap seconds. Let's face it, leap seconds are a major pain in the posterior. Not having leap seconds would also be a pain in the posterior, but different posteriors are involved. Is there a class in the Kernel/Chronology category that might be useful to you? What is the exercise you are trying to work on? On Wed, 15 Jul 2020 at 03:04, Roelof Wobben via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Sorry that you did not hear from me a long time but I was in a dark > place for a long time. > > but im back and have a question > > I have to make a clock so the seconds and minutes schould not be above 60, > > How can I take care of that ? > > and can I put the code here on the class side on this given method > > hour: anInteger minute: anInteger2 > self shouldBeImplemented > > or schould I use that to make a call to the instance side and take care > of there that the seconds and minutes are always valid. > > Roelof > > >

July 16, 2020