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

Re: [Pharo-users] Please rejoin Discord

by Peter UhnÃ¡k

Maybe it would be better to flip it around: have http://pharo.org/discord which would automatically redirect to the proper pharo invite link On Sun, Mar 11, 2018 at 9:25 PM, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > Because I posted a new link it was misinterpreted that the old one did not > work which is not the case. Yeah changing it back to the old one is the > right choice. I created the new one only for convenience but as I said we > already have a ton of invite links. > > In any case the old one will remain and wont bet changed, unless > Dicscord decides something stupid which I doubt will do because already too > many people (outside our community) that use Discord depend on the invite > links not to change and remain the same. > > So all is good :) > > > On Sun, Mar 11, 2018 at 9:43 PM Stephane Ducasse <stepharo.self(a)gmail.com> > wrote: > >> Ok now I do not understand why the invite changed on the pharo web >> site (and I do not like the here instead of the full name) because we >> have to hover to get the information. >> >> On Sun, Mar 11, 2018 at 7:30 PM, Dimitris Chloupis >> <kilon.alios(a)gmail.com> wrote: >> > if you provide me the specific link of the invitation you are referring >> to, >> > I can verify it for you that has not changed >> > >> > Our server currently has 26 invites with no expiration date. 2 of them >> are >> > created by me. >> > >> > But yes if an invite is without expiration date it means it won't get >> > deleted. >> > >> > The most likely scenario is that you are using an invite created by >> Esteban >> > (@Estebanlm), because it has been used 871 times. That invite has not >> > changed and is the invite ending with "Sj2rhxn" and indeed it has no >> > expiration date, which means it will "never" change. Neither any other >> of >> > the 26 invites. >> > >> > >> > >> > >> > On Sun, Mar 11, 2018 at 8:07 PM Stephane Ducasse < >> stepharo.self(a)gmail.com> >> > wrote: >> >> >> >> did the invitation changed? >> >> Because we will have to update books flyers and others. >> >> So is there a way to keep the invitation link stable? >> >> >> >> Stef >> >> >> >> On Sat, Mar 10, 2018 at 11:48 AM, Dimitris Chloupis >> >> <kilon.alios(a)gmail.com> wrote: >> >> > Hey guys after my mistake we got "hacked" and someone banned all our >> >> > members >> >> > in Discord >> >> > >> >> > I have revoked all the bans but you will have to rejoin . Existing >> join >> >> > links are still valid , if you dont have one here is one >> >> > >> >> > https://discord.gg/gtKeHne >> >> > >> >> > My apologies for this inconvenience, I am still exploring all >> possible >> >> > threats to make sure this never happens again. >> >> >> > >> >>

March 12, 2018

Re: [Pharo-users] How do I make sure a directory exists?

by Sven Van Caekenberghe

> On 12 Mar 2018, at 10:11, Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > You can also do: > > FileSystem disk workingDirectory parent / 'public'. > > I feel it cleaner :) Indeed, the power of messages. > On Sun, Mar 11, 2018 at 10:27 AM, john pfersich <jpfersich(a)gmail.com> wrote: > Works on Ubuntu 16.04 > > Sent from my iPhone > Encrypted email at jgpfersich(a)protonmail.com > > On Mar 10, 2018, at 12:38, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> wrote: > >> >> On sam. 10 mars 2018 at 21:36, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: >> Yes, #ensureCreateDirectory is available. >> >> I'd like to make sure a directory 'public' is available as a sibling >> directory of the working directory (the directory where the Pharo >> image is in) >> >> However >> >> FileSystem disk workingDirectory / '../public' ensureCreateDirectory >> >> does not work as >> >> FileSystem disk workingDirectory / '../public' >> >> Try `(FileSystem workingDirectory / '..' / 'public') ensureCreateDirectory` >> >> >> is an instance of ByteStream. Seemingly there is no conversion to a >> directory object. >> >> I wonder what is needed in addition? >> >> >> >> >> >> >> >> On 3/10/18, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> wrote: >> > On sam. 10 mars 2018 at 21:02, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: >> > >> >> Hello >> >> >> >> In Squeak and the dialect independent FileMan [1] there is >> >> >> >> >> >> FileDirectory >> >> assureExistence >> >> "Make sure the current directory exists. If necessary, create >> >> all >> >> parts in between" >> >> >> >> >> >> What is the equivalent Pharo method? BTW is there a cheat sheet for >> >> FileSystem operations in Pharo? >> >> >> > >> > Hi, >> > >> > There is #ensureCreateDirectory in Pharo but I don't know if it will check >> > the parents exists. (And I don't have a Pharo image to check. >> > >> > >> >> Thanks in advance >> >> Hannes >> >> >> >> >> >> >> >> --------------------------------------------------------- >> >> [1] http://wiki.squeak.org/squeak/6333 >> >> >> >> https://github.com/mumez/FileMan >> >> >> >> FileMan provides an API to file and directory tasks. >> >> FileMan is a thin wrapper for various Smalltalk file libraries. It >> >> provides simple, portable interfaces for manipulating files and >> >> directories. >> >> ... >> >> Since 2015 FileMan is the default file library in Cuis Smalltalk. >> >> >> >> -- >> > Cyril Ferlicot >> > https://ferlicot.fr >> > >> > http://www.synectique.eu >> > 2 rue Jacques PrÃ©vert 01, >> > 59650 Villeneuve d'ascq France >> > >> >> -- >> Cyril Ferlicot >> https://ferlicot.fr >> >> http://www.synectique.eu >> 2 rue Jacques PrÃ©vert 01, >> 59650 Villeneuve d'ascq France > > > > -- > > Guille Polito > Research Engineer > > Centre de Recherche en Informatique, Signal et Automatique de Lille > CRIStAL - UMR 9189 > French National Center for Scientific Research - http://www.cnrs.fr > > Web: http://guillep.github.io > Phone: +33 06 52 70 66 13

March 12, 2018

Re: [Pharo-users] Ever growing image

by Guillermo Polito

On Sat, Mar 10, 2018 at 11:44 AM, Hilaire <hilaire(a)drgeo.eu> wrote: > Le 06/03/2018 Ã 11:55, Guillermo Polito a Ã©crit : > >> >> In any case, I only wanted to say that it is unfair to say that Pharo is >> big when "you only load your packages". >> And I feel that's not true, if you're using the graphical environment, >> you need display, bitblt, morphic, widgets. >> As soon as you need to dynamically run scripts you need the compiler and >> parsing machinery. >> As soon as you write any program you mostly need many core libraries >> (just think about collections). >> > > It is not unfair, it is just a reality. First version of DrGeo image on > Pharo, including display, bitblt, morphic, widgets, compiler, parser was > bellow 10MB (including DrGeo code)[1]. > Now the question that matter for me, can I get back toward this fair size > or close to? > What is unfair is that building the same environment on other technology will get closer to the hundreds of MBs, or in the Java/Eclipse case more closer to the GB(s). > > I don't buy on the argument we have plenty of place, who cares. It is > wrong. It is with this kind of argument we will lead to the exhaustion of > the planet Earth resources[2]. > We are still far from being a space eater environment... Please let's not exaggerate. That said, I would also like to have a smaller and more malleable system, in that I agree with you, but that takes time and work, and I see few people that is diving in the insides of Pharo to help get us something in that direction. Not because they don't care but because it is difficult and time consuming. > > Hilaire > > > [1] https://gforge.inria.fr/frs/download.php/file/28307/DrGeo.ap > p-11.03.zip > [2] https://en.wikipedia.org/wiki/Rebound_effect_(conservation) > > -- > Dr. Geo > http://drgeo.eu > > > > -- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13

March 12, 2018

Re: [Pharo-users] How do I make sure a directory exists?

by Guillermo Polito

You can also do: FileSystem disk workingDirectory parent / 'public'. I feel it cleaner :) On Sun, Mar 11, 2018 at 10:27 AM, john pfersich <jpfersich(a)gmail.com> wrote: > Works on Ubuntu 16.04 > > Sent from my iPhone > Encrypted email at jgpfersich(a)protonmail.com > > On Mar 10, 2018, at 12:38, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> > wrote: > > > On sam. 10 mars 2018 at 21:36, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> Yes, #ensureCreateDirectory is available. >> >> I'd like to make sure a directory 'public' is available as a sibling >> directory of the working directory (the directory where the Pharo >> image is in) >> >> However >> >> FileSystem disk workingDirectory / '../public' ensureCreateDirectory >> >> does not work as >> >> FileSystem disk workingDirectory / '../public' >> > > Try `(FileSystem workingDirectory / '..' / 'public') ensureCreateDirectory` > > >> is an instance of ByteStream. Seemingly there is no conversion to a >> directory object. >> >> I wonder what is needed in addition? >> >> >> >> >> >> >> >> On 3/10/18, Cyril Ferlicot <cyril.ferlicot(a)gmail.com> wrote: >> > On sam. 10 mars 2018 at 21:02, H. Hirzel <hannes.hirzel(a)gmail.com> >> wrote: >> > >> >> Hello >> >> >> >> In Squeak and the dialect independent FileMan [1] there is >> >> >> >> >> >> FileDirectory >> >> assureExistence >> >> "Make sure the current directory exists. If necessary, >> create >> >> all >> >> parts in between" >> >> >> >> >> >> What is the equivalent Pharo method? BTW is there a cheat sheet for >> >> FileSystem operations in Pharo? >> >> >> > >> > Hi, >> > >> > There is #ensureCreateDirectory in Pharo but I don't know if it will >> check >> > the parents exists. (And I don't have a Pharo image to check. >> > >> > >> >> Thanks in advance >> >> Hannes >> >> >> >> >> >> >> >> --------------------------------------------------------- >> >> [1] http://wiki.squeak.org/squeak/6333 >> >> >> >> https://github.com/mumez/FileMan >> >> >> >> FileMan provides an API to file and directory tasks. >> >> FileMan is a thin wrapper for various Smalltalk file libraries. It >> >> provides simple, portable interfaces for manipulating files and >> >> directories. >> >> ... >> >> Since 2015 FileMan is the default file library in Cuis Smalltalk. >> >> >> >> -- >> > Cyril Ferlicot >> > https://ferlicot.fr >> > >> > http://www.synectique.eu >> > 2 rue Jacques PrÃ©vert 01, >> > 59650 Villeneuve d'ascq France >> > >> >> -- > Cyril Ferlicot > https://ferlicot.fr > > http://www.synectique.eu > 2 rue Jacques PrÃ©vert 01, > 59650 Villeneuve d'ascq France > > -- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13

March 12, 2018

Re: [Pharo-users] How do I ask the FileSystem to resolve a relative path?

by Guillermo Polito

Hi, do not forget also that there is an entire chapter on FileSystem in here: http://files.pharo.org/books-pdfs/deep-into-pharo/2013-DeepIntoPharo-EN.pdf And I particularly recommend everybody dealing with files to read about how to manage encodings in here: http://files.pharo.org/books-pdfs/entreprise-pharo/2016-10-06-EnterprisePha… On Mon, Mar 12, 2018 at 7:09 AM, john pfersich <jpfersich(a)gmail.com> wrote: > What OS are you using? My code was executed on Ubuntu 16.04. > > Sent from my iPhone > Encrypted email at jgpfersich(a)protonmail.com > > > On Mar 11, 2018, at 10:37, Alistair Grant <akgrant0710(a)gmail.com> wrote: > > > > Hi Hannes, > > > >> On 11 March 2018 at 17:49, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> The first solution given by Sven works fine. > >> > >> dir := FileSystem workingDirectory / '..' / 'public'. > >> dir ensureCreateDirectory. > >> (dir / 'myFile.txt') writeStreamDo: [ :out | out << 'Hello World!' ]. > >> > >> > >> The second version > >> > >> obj := (FileSystem workingDirectory / '..' / 'public' / 'testing' > >> / 'test2.txt') ensureCreateFile. > >> obj writeStream > >> > >> gives a #streamError in the class FileHandle. This is for Pharo 6.1 > > > > I don't get any error in 6.1 or 7.0. > > > > Maybe supply a call stack? > > > > In case you aren't familiar with this, the debugger has a little > > hamburger menu button to the right of "Through" which has "Copy Stack > > to Clipboard". > > > > Cheers, > > Alistair > > > > -- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13

March 12, 2018

Re: [Pharo-users] How do I ask the FileSystem to resolve a relative path?

by john pfersich

What OS are you using? My code was executed on Ubuntu 16.04. Sent from my iPhone Encrypted email at jgpfersich(a)protonmail.com > On Mar 11, 2018, at 10:37, Alistair Grant <akgrant0710(a)gmail.com> wrote: > > Hi Hannes, > >> On 11 March 2018 at 17:49, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: >> The first solution given by Sven works fine. >> >> dir := FileSystem workingDirectory / '..' / 'public'. >> dir ensureCreateDirectory. >> (dir / 'myFile.txt') writeStreamDo: [ :out | out << 'Hello World!' ]. >> >> >> The second version >> >> obj := (FileSystem workingDirectory / '..' / 'public' / 'testing' >> / 'test2.txt') ensureCreateFile. >> obj writeStream >> >> gives a #streamError in the class FileHandle. This is for Pharo 6.1 > > I don't get any error in 6.1 or 7.0. > > Maybe supply a call stack? > > In case you aren't familiar with this, the debugger has a little > hamburger menu button to the right of "Through" which has "Copy Stack > to Clipboard". > > Cheers, > Alistair >

March 12, 2018

Re: [Pharo-users] Please rejoin Discord

by Dimitris Chloupis

Because I posted a new link it was misinterpreted that the old one did not work which is not the case. Yeah changing it back to the old one is the right choice. I created the new one only for convenience but as I said we already have a ton of invite links. In any case the old one will remain and wont bet changed, unless Dicscord decides something stupid which I doubt will do because already too many people (outside our community) that use Discord depend on the invite links not to change and remain the same. So all is good :) On Sun, Mar 11, 2018 at 9:43 PM Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Ok now I do not understand why the invite changed on the pharo web > site (and I do not like the here instead of the full name) because we > have to hover to get the information. > > On Sun, Mar 11, 2018 at 7:30 PM, Dimitris Chloupis > <kilon.alios(a)gmail.com> wrote: > > if you provide me the specific link of the invitation you are referring > to, > > I can verify it for you that has not changed > > > > Our server currently has 26 invites with no expiration date. 2 of them > are > > created by me. > > > > But yes if an invite is without expiration date it means it won't get > > deleted. > > > > The most likely scenario is that you are using an invite created by > Esteban > > (@Estebanlm), because it has been used 871 times. That invite has not > > changed and is the invite ending with "Sj2rhxn" and indeed it has no > > expiration date, which means it will "never" change. Neither any other of > > the 26 invites. > > > > > > > > > > On Sun, Mar 11, 2018 at 8:07 PM Stephane Ducasse < > stepharo.self(a)gmail.com> > > wrote: > >> > >> did the invitation changed? > >> Because we will have to update books flyers and others. > >> So is there a way to keep the invitation link stable? > >> > >> Stef > >> > >> On Sat, Mar 10, 2018 at 11:48 AM, Dimitris Chloupis > >> <kilon.alios(a)gmail.com> wrote: > >> > Hey guys after my mistake we got "hacked" and someone banned all our > >> > members > >> > in Discord > >> > > >> > I have revoked all the bans but you will have to rejoin . Existing > join > >> > links are still valid , if you dont have one here is one > >> > > >> > https://discord.gg/gtKeHne > >> > > >> > My apologies for this inconvenience, I am still exploring all possible > >> > threats to make sure this never happens again. > >> > > > >

March 11, 2018

feenk log

by Tudor Girba

Hi, Here is an update of the work on Bloc, Brick and GT. As always, please do let us know what you think. Bloc: - Improved the deletion in the text editor and covered the scenarios with examples - Worked on the text selection. Still work needed for selection to be production ready: https://twitter.com/feenkcom/status/969183393547259905 - Balanced rope structure for even better performance of the editor. Overall, the performance of the text editor improved 2x. https://twitter.com/feenkcom/status/971009488789516288 - Selectable curves: https://twitter.com/feenkcom/status/967690664589910016 Brick: - Resizer overlay. The tweet below also shows how we can now easily script dragging behavior in examples: https://twitter.com/feenkcom/status/971990195011690496 GToolkit: - Diagrammer is a new engine for drawing diagrams based on Bloc. This is the first version, and we will continue working on it in the following weeks, so stay tuned for more news. This is also one of the first Bloc applications: https://twitter.com/feenkcom/status/972243179599794180 - Andrei put together a beautiful description of a scenario in which an application is molded interactively in the Playground & Inspector. The subject is face recognition, and the resulting code is both functional and explainable. This is intended as a tutorial material that shows what moldable development means and how it changes the way we program: https://twitter.com/feenkcom/status/972907051448979458 Have fun, The feenk team www.feenk.com -- www.tudorgirba.com www.feenk.com "To utilize feedback, you first have to acquire it."

March 11, 2018

Re: [Pharo-users] Please rejoin Discord

by Stephane Ducasse

Ok I changed the community web page to point to http://discord.gg/Sj2rhxn as in the flyer and other documents. On Sun, Mar 11, 2018 at 8:42 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Ok now I do not understand why the invite changed on the pharo web > site (and I do not like the here instead of the full name) because we > have to hover to get the information. > > On Sun, Mar 11, 2018 at 7:30 PM, Dimitris Chloupis > <kilon.alios(a)gmail.com> wrote: >> if you provide me the specific link of the invitation you are referring to, >> I can verify it for you that has not changed >> >> Our server currently has 26 invites with no expiration date. 2 of them are >> created by me. >> >> But yes if an invite is without expiration date it means it won't get >> deleted. >> >> The most likely scenario is that you are using an invite created by Esteban >> (@Estebanlm), because it has been used 871 times. That invite has not >> changed and is the invite ending with "Sj2rhxn" and indeed it has no >> expiration date, which means it will "never" change. Neither any other of >> the 26 invites. >> >> >> >> >> On Sun, Mar 11, 2018 at 8:07 PM Stephane Ducasse <stepharo.self(a)gmail.com> >> wrote: >>> >>> did the invitation changed? >>> Because we will have to update books flyers and others. >>> So is there a way to keep the invitation link stable? >>> >>> Stef >>> >>> On Sat, Mar 10, 2018 at 11:48 AM, Dimitris Chloupis >>> <kilon.alios(a)gmail.com> wrote: >>> > Hey guys after my mistake we got "hacked" and someone banned all our >>> > members >>> > in Discord >>> > >>> > I have revoked all the bans but you will have to rejoin . Existing join >>> > links are still valid , if you dont have one here is one >>> > >>> > https://discord.gg/gtKeHne >>> > >>> > My apologies for this inconvenience, I am still exploring all possible >>> > threats to make sure this never happens again. >>> >>

March 11, 2018

Re: [Pharo-users] Please rejoin Discord

by Stephane Ducasse

Ok now I do not understand why the invite changed on the pharo web site (and I do not like the here instead of the full name) because we have to hover to get the information. On Sun, Mar 11, 2018 at 7:30 PM, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > if you provide me the specific link of the invitation you are referring to, > I can verify it for you that has not changed > > Our server currently has 26 invites with no expiration date. 2 of them are > created by me. > > But yes if an invite is without expiration date it means it won't get > deleted. > > The most likely scenario is that you are using an invite created by Esteban > (@Estebanlm), because it has been used 871 times. That invite has not > changed and is the invite ending with "Sj2rhxn" and indeed it has no > expiration date, which means it will "never" change. Neither any other of > the 26 invites. > > > > > On Sun, Mar 11, 2018 at 8:07 PM Stephane Ducasse <stepharo.self(a)gmail.com> > wrote: >> >> did the invitation changed? >> Because we will have to update books flyers and others. >> So is there a way to keep the invitation link stable? >> >> Stef >> >> On Sat, Mar 10, 2018 at 11:48 AM, Dimitris Chloupis >> <kilon.alios(a)gmail.com> wrote: >> > Hey guys after my mistake we got "hacked" and someone banned all our >> > members >> > in Discord >> > >> > I have revoked all the bans but you will have to rejoin . Existing join >> > links are still valid , if you dont have one here is one >> > >> > https://discord.gg/gtKeHne >> > >> > My apologies for this inconvenience, I am still exploring all possible >> > threats to make sure this never happens again. >> >

March 11, 2018