March 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Using the new OSProcess still no Stdout string

by Dimitris Chloupis

thanks for freezing my image !!! Argggg !!!! :D On Sat, Mar 5, 2016 at 10:44 AM john pfersich <jpfersich(a)gmail.com> wrote: > Well, I have to take back the comment on command:. I have this code > snippet that gets output from a command: > > | p d | > p := (PipeableOSProcess command: 'netstat -a | grep LISTEN | grep 27017'). > p keepInitialStdOutOpen: true. > d := Delay forMilliseconds: 500. > d wait. > [Transcript show: (p next: 300); flush. p isComplete] whileFalse: [d wait]. > Transcript show: 'Error output'; > cr; > show: (p errorUpToEnd). > p closeOutput. > > The netstat takes forever on a Mac, which is why the delays are so long. > The > > On Friday, March 4, 2016, john pfersich <jpfersich(a)gmail.com> wrote: > >> You want to use waitForCommand: instead of command:, like >> >> Transcript show: (PipeableOSProcess waitForCommand: 'whoami') output >> >> command: doesn't wait for output and is useful only for commands that >> don't return anything. It's kind of useless for anything that returns >> values. I haven't tried this on Pharo 5, I've gotten it to work on Pharo 4. >> >> >> >> On Friday, March 4, 2016, Dimitris Chloupis <kilon.alios(a)gmail.com> >> wrote: >> >>> I once reported a bug for OSProcess on MacOS >>> >>> >>> https://pharo.fogbugz.com/f/cases/16944/OSProcess-stdout-is-not-returned-ba… >>> >>> Still experience the same problem, is this suppose to be fixed with new >>> OSProcess ? >>> >>> >>>

March 5, 2016

adding credentials to a repo via a playground script

by Peter UhnÃ¡k

Hi, is it possible to add credentials to an existing repo via a script? I've tried something like ~~~~~~~~~~~~~~~~~~~~~~~~~ |repo| repo := MCSmalltalkhubRepository allInstances detect: [ :each | each location includesSubstring: 'Pharo50Inbox' ]. repo user: 'peteruhnak'; password: '******' ~~~~~~~~~~~~~~~~~~~~~~~~~~ but it has no effect. Thanks, Peter

March 5, 2016

Re: [Pharo-users] [Pharo-dev] Call about Numerical Methods in Pharo :)

by Sven Van Caekenberghe

> On 05 Mar 2016, at 11:37, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > frankly all this zealot mails do not have any sense. > > first, SciSmalltalk is a project made fundamentally by Serge, and is Serge who has pointed he wants a change of name for something sexierâ¦ what is the problem? > second, by discussing a nonsense (because is subjective and everybody has a different opinion) you are highjacking the real purpose of this mail: a call to the community to improve the numerical methods support in Pharo. > > So, please, can we stay cool and go back to discuss what is really important? +100 > cheers, > Esteban > > >> On 02 Mar 2016, at 14:33, stepharo <stepharo(a)free.fr> wrote: >> >> Hi guys >> >> I met Didier Besset and we had a great hacking session and discussions with Serge Stinckwich. >> Didier would like to help Pharo and the numerical part of it. ***Big thanks*** Didier. >> >> We would like to do several things: >> >> - Work on "Hows to" >> The numerical methods in Pharo is good but the gap between us and the math is too large :) >> so the idea is to have a series of "how to ..." >> - histomgram (simple, based on distribution) >> >> - Improve the SciPharo/NumPha (previously SciSmalltalk) library >> This morning we started to implement a ComponentPrincipalDecomposition by combining two of the >> objects available in SciPharo. >> Then we started to enhance the distributions to make sure that we can plug other distribution for having >> controlled random number. >> >> - Do a public call to know what is missing for you: this is this mail :) >> Didier would like to work on concrete cases. I love that attitude >> So tell us :) >> >> Hernan ?? >> Alex: ?? pvalue? better distribution? >> Vincent: covariance? CPA? >> Philippe: times series >> Serge R frames? >> Sami: Better random number and various distributions? >> >> - Organise a two day lectures with practices on concrete case in September with a recording session. >> Either at IRD Bondy or Lille. >> >> - Make sure that the Numerical Method book will get on lulu :) with a better cover and title :) >> >> >> Stef >> >> > >

March 5, 2016

Re: [Pharo-users] [Pharo-dev] Call about Numerical Methods in Pharo :)

by Esteban Lorenzano

frankly all this zealot mails do not have any sense. first, SciSmalltalk is a project made fundamentally by Serge, and is Serge who has pointed he wants a change of name for something sexierâ¦ what is the problem? second, by discussing a nonsense (because is subjective and everybody has a different opinion) you are highjacking the real purpose of this mail: a call to the community to improve the numerical methods support in Pharo. So, please, can we stay cool and go back to discuss what is really important? cheers, Esteban > On 02 Mar 2016, at 14:33, stepharo <stepharo(a)free.fr> wrote: > > Hi guys > > I met Didier Besset and we had a great hacking session and discussions with Serge Stinckwich. > Didier would like to help Pharo and the numerical part of it. ***Big thanks*** Didier. > > We would like to do several things: > > - Work on "Hows to" > The numerical methods in Pharo is good but the gap between us and the math is too large :) > so the idea is to have a series of "how to ..." > - histomgram (simple, based on distribution) > > - Improve the SciPharo/NumPha (previously SciSmalltalk) library > This morning we started to implement a ComponentPrincipalDecomposition by combining two of the > objects available in SciPharo. > Then we started to enhance the distributions to make sure that we can plug other distribution for having > controlled random number. > > - Do a public call to know what is missing for you: this is this mail :) > Didier would like to work on concrete cases. I love that attitude > So tell us :) > > Hernan ?? > Alex: ?? pvalue? better distribution? > Vincent: covariance? CPA? > Philippe: times series > Serge R frames? > Sami: Better random number and various distributions? > > - Organise a two day lectures with practices on concrete case in September with a recording session. > Either at IRD Bondy or Lille. > > - Make sure that the Numerical Method book will get on lulu :) with a better cover and title :) > > > Stef > >

March 5, 2016

Re: [Pharo-users] PharoLauncher eventual slowdown

by Peter UhnÃ¡k

> Same here. > 3 min to launch Stef, try to disable write access on a fresh install to the PharoLauncher.changes and PharoLauncher.image At least for me it seems that it stays fast now. > Do you notice the slow down by launching images or do you use the PharoLauncher image for anything else? I use it just for images management (downloading, removing, renaming, recreating), I don't run actual programs from there. But `chmod a-w PharoLauncher.*` seems to work well for now. On Sat, Mar 5, 2016 at 10:38 AM, stepharo <stepharo(a)free.fr> wrote: > Hi nicolai > > what you use it for? > I'm intrigued. > Stef > > Le 4/3/16 18:59, Nicolai Hess a Ã©crit : > > > > 2016-03-04 17:15 GMT+01:00 Ben Coman <btc(a)openinworld.com>: > >> Hi Peter, I see you had this problem 12 months ago. >> >> http://lists.pharo.org/pipermail/pharo-users_lists.pharo.org/2015-February/… >> >> What you can try is in development mode, closing the PharoLauncher >> window, nil out class variables and garbage collect, then check what >> instances remain of PharoLauncher classes. >> >> cheers -ben >> > > > I use pharo launcer a lot (on windows) and I did not see any slow down. > But I don't use it for anything else then launching the images. > Do you notice the slow down by launching images or do you use the > PharoLauncher image for anything else? > > >> >> On Fri, Mar 4, 2016 at 6:42 PM, Peter UhnÃ¡k < <i.uhnak(a)gmail.com> >> i.uhnak(a)gmail.com> wrote: >> > Yeah I saw that when he was in Prague (incidentally that's where my >> launcher >> > slowdown started :)). >> > >> > I've removed write access and will report back in couple of days. :) >> > >> > Thanks, >> > Peter >> > >> > On Fri, Mar 4, 2016 at 11:24 AM, Damien Cassou <damien.cassou(a)inria.fr> >> > wrote: >> >> >> >> Hi Peter, >> >> >> >> Peter UhnÃ¡k <i.uhnak(a)gmail.com> writes: >> >> > I've been using Pharo Launcher for quite a while and problem that I >> am >> >> > constantly encountering is that launching of it becomes slower and >> >> > slower. >> >> >> >> StÃ©phane, in CC, reported the same months ago on OS X. I don't know if >> >> StÃ©phane still experiences the problem. Could you please try to remove >> >> write access to the .image and .changes files? >> >> >> >> -- >> >> Damien Cassou >> >> http://damiencassou.seasidehosting.st >> >> >> >> "Success is the ability to go from one failure to another without >> >> losing enthusiasm." --Winston Churchill >> > >> > >> >> > >

March 5, 2016

Re: [Pharo-users] Lost class migrating from 3.0 to 4.0

by stepharo

Hi Hilaire > I am migrating a web application from 3.0 to 4.0. > I noted one class can't get load! It is however present in the > Squeaksource repo. you did not get a warning that the superclass is not loaded I imagine. So this is strange. I never got such problem. Yesterday I got a bug that I cannot publish on SmalltalkHub repo with my password and the one of olivier too. So mega strange. > > The class is a WAComponent, it is the entry point of the application > with all the initializations. All the libraries dependencies are > satisfied. I don't see reason why the class can't be load, and there is > no such warning. Trying to load by hand this sole class does not work > either. Uh Did you try to copy past the definition from the external package browser? > > Did any of you meet such problem with Pharo 4.0 > > Hilaire >

March 5, 2016

Re: [Pharo-users] PharoLauncher eventual slowdown

by stepharo

Hi nicolai what you use it for? I'm intrigued. Stef Le 4/3/16 18:59, Nicolai Hess a Ã©crit : > > > 2016-03-04 17:15 GMT+01:00 Ben Coman <btc(a)openinworld.com > <mailto:btc@openinworld.com>>: > > Hi Peter, I see you had this problem 12 months ago. > http://lists.pharo.org/pipermail/pharo-users_lists.pharo.org/2015-February/… > > What you can try is in development mode, closing the PharoLauncher > window, nil out class variables and garbage collect, then check what > instances remain of PharoLauncher classes. > > cheers -ben > > > > I use pharo launcer a lot (on windows) and I did not see any slow down. > But I don't use it for anything else then launching the images. > Do you notice the slow down by launching images or do you use the > PharoLauncher image for anything else? > > > On Fri, Mar 4, 2016 at 6:42 PM, Peter UhnÃ¡k <i.uhnak(a)gmail.com > <mailto:i.uhnak@gmail.com>> wrote: > > Yeah I saw that when he was in Prague (incidentally that's where > my launcher > > slowdown started :)). > > > > I've removed write access and will report back in couple of days. :) > > > > Thanks, > > Peter > > > > On Fri, Mar 4, 2016 at 11:24 AM, Damien Cassou > <damien.cassou(a)inria.fr <mailto:damien.cassou@inria.fr>> > > wrote: > >> > >> Hi Peter, > >> > >> Peter UhnÃ¡k <i.uhnak(a)gmail.com <mailto:i.uhnak@gmail.com>> writes: > >> > I've been using Pharo Launcher for quite a while and problem > that I am > >> > constantly encountering is that launching of it becomes > slower and > >> > slower. > >> > >> StÃ©phane, in CC, reported the same months ago on OS X. I don't > know if > >> StÃ©phane still experiences the problem. Could you please try to > remove > >> write access to the .image and .changes files? > >> > >> -- > >> Damien Cassou > >> http://damiencassou.seasidehosting.st > >> > >> "Success is the ability to go from one failure to another without > >> losing enthusiasm." --Winston Churchill > > > > > >

March 5, 2016

Re: [Pharo-users] PharoLauncher eventual slowdown

by stepharo

> Yeah I saw that when he was in Prague (incidentally that's where my > launcher slowdown started :)). I'm a bug attractor. I can crash yosemite in 0.5 s: drag and drop two files on the desktop and bam you get the loggin screen :) > > I've removed write access and will report back in couple of days. :) > > Thanks, > Peter > > On Fri, Mar 4, 2016 at 11:24 AM, Damien Cassou <damien.cassou(a)inria.fr > <mailto:damien.cassou@inria.fr>> wrote: > > Hi Peter, > > Peter UhnÃ¡k <i.uhnak(a)gmail.com <mailto:i.uhnak@gmail.com>> writes: > > I've been using Pharo Launcher for quite a while and problem > that I am > > constantly encountering is that launching of it becomes slower and > > slower. > > StÃ©phane, in CC, reported the same months ago on OS X. I don't know if > StÃ©phane still experiences the problem. Could you please try to remove > write access to the .image and .changes files? > > -- > Damien Cassou > http://damiencassou.seasidehosting.st > > "Success is the ability to go from one failure to another without > losing enthusiasm." --Winston Churchill > >

March 5, 2016

Re: [Pharo-users] PharoLauncher eventual slowdown

by stepharo

Same here. 3 min to launch So I cloned the laucnher from time to time and it is a mess :) Stef Le 3/3/16 21:56, Peter UhnÃ¡k a Ã©crit : > Hi, > > I've been using Pharo Launcher for quite a while and problem that I am > constantly encountering is that launching of it becomes slower and slower. > > Up until now I've solved it by writing a bash script that downloads > the launcher fresh and reconfigures it. And then I've executed the > script about once a week. > > But I am little bit fed-up by itâ¦ is this a common behavior? Or is it > constrained to my machine? > > For example, if I execute the following (so I can time it) > time /opt/pharo-vm/cog/pharo --nodisplay --textenc UTF-8 > /opt/pharo-launcher/PharoLauncher.image eval '1+1' > > (also I have right now about ~27 images in the Launcher) > > fresh download (yesterday): ~0.49s > today: 0.91s (almost double) > > and in a week it will be be maybe 10 seconds. > > I can just setup cronjob that resets pharo launcher every day, but a > systemic solution would be better. > > Thanks, > Peter

March 5, 2016

Re: [Pharo-users] Little how to

by stepharo

Tx This is a cool challenge Le 3/3/16 13:08, Sven Van Caekenberghe a Ã©crit : >> On 03 Mar 2016, at 09:23, stepharo <stepharo(a)free.fr> wrote: >> >> Hi guys >> >> for the mooc I would like have a list of how to that students should look in the system and implement. >> The idea is to show to the participants that Pharo is open and that they can find information. >> For example, >> - extracting a sprite from a png file >> - access a time service of the web > Time is soo simple that there is no real need for a true web service and such a service would be trivial anyway (yet I did not find any public/free ones). > > Here is one way to do it: > > | stream unixTime | > stream := nil. > [ > "RFC 868 TCP protocol https://en.wikipedia.org/wiki/Time_Protocol " > stream := ZdcSocketStream openConnectionToHostNamed: 'time.nist.gov' port: 37. > unixTime := (stream next: 4) asInteger ] > ensure: [ stream ifNotNil: [ [ stream close ] on: Error do: [] ] ]. > DateAndTime fromUnixTime: unixTime. > > > The real stuff is SNTP though > > http://en.wikipedia.org/wiki/Network_Time_Protocol > http://tools.ietf.org/html/rfc2030 > > which is implemented in ZTimestamp and which can do much more: > > ZTimestampSNTPClient new remoteClock. > > Sven > >> Now I would love to get your ideas and their solution. >> >> Stef >> >> >> > >

March 5, 2016