- Pharo-users - lists.pharo.org

Re: [Pharo-users] Capturing a stream

by Ben Coman

I've never known 'echo' to wait for input, and haven't heard of this echo & pub combination. Do you have some link to a tutorial showing how they are used? However just wildly guessing, are you wanting to get output from a long running command without blocking the Pharo UI? In that case, what about... [ *stringVar := (PipeableOSProcess command: 'echo...') output ] fork. * *?* *cheers -ben* On Tue, Jan 13, 2015 at 9:18 AM, Demian Schkolnik <demianschkolnik(a)gmail.com > wrote: > Hello everyone. > > I have the following question. I have a specific 'echo ...' command, which > I send to the linux console via " OSProcess command:'echo ... ' ". > This echo command, when executed on the native linux console, stands by > until it receives some message. > Following this, I have to execute a 'pub...' command, which gives some > information that the echo command will print on screen. On linux, you run > 'echo..' on a terminal and 'pub...' on another. > My objective here is to capture the output of echo into a smalltalk > variable for later use. > Normally, if a console command prints something immediately to screen, I > use > *(PipeableOSProcess command:'some command') output.* > > It is here a little different though, since this command will not print > something immediately to screen. I want to do something like this, where > the final output of 'echo..' stays in stringVar. > > *stringVar := (PipeableOSProcess command: 'echo...') output. * > *(Delay forSeconds:3) wait.* > *(OSProcess command: 'pub... ').* > *(Delay forSeconds:3) wait.* > > Thank you all. > > > >

Jan. 13, 2015

Re: [Pharo-users] Useful tools?

by HernÃ¡n Morales Durand

Hi Laura, 2015-01-13 0:58 GMT-03:00 Laura Risani <laura.risani(a)gmail.com>: > Hi all, > > What are some tools / plug-ins/ projects / packages / frameworks > you find very useful or you use very frequently for development? > (please for each name it and state it's purpose) > Well, it depends really what's your domain. Mine is bioinformatics applied to phylogenetics in research, this includes : Visualization (choropleths, charts, histograms, etc): Roassal, GraphViz. XML parsing: XML Parser, XMLPullParser, XPath. Parsing: PetitParser. UI development: Spec (requires knowledge of Morphic and event frameworks like Announcements) Application Security: http://www.smalltalkhub.com/#!/~hernan/ApplicationSecurity Iliad (Web Framework): http://www.smalltalkhub.com/#!/~hernan/Iliad Komanche (Web Server): http://www.smalltalkhub.com/#!/~hernan/KomHttpServer NumericalMethods (Math package) GIS: There is still no really a package for this, but I wrote one named "Territorial" for my needs. And using Shapes for ESRI files. OS access: ProcessWrapper, OSWindows, OSProcess. Testing: SUnit. BioSmalltalk: My package for doing bioinformatics with Smalltalk. and surely others which I forgot now Most of them are accessible from the Configuration Browser in Pharo 3, or by searching in http://www.smalltalkhub.com/ > I'm a newcomer to Pharo , so it hasn't to be something rare. > > > Welcome :) > On the side... > I feel curious about how one gets to know about the existence of such > resources. Is there any sort of "resources index" (like a wiki page with > categories)? Besides books which can't be comprehensive because of their > nature. Such an index would be extremely handy in many ways. > Do you agree? Is it plausible, if it doesn't exist, to built it > collaboratively? > > There is a package named "Catalog", I don't know how many people is putting effort on it right now. I think it needs some love. The URL I have is https://ci.inria.fr/pharo-contribution/job/PharoProjectCatalog/HTML_Report/ and you can get it running by evaluating (have not checked now) Gofer it smalltalkhubUser: 'DamienCassou' project: 'Pier-Gutemberg'; configurationOf: 'Catalog'; loadStable > It is a sad thing that useful tools go unnoticed when they could have > solved a problem you faced or eased your work if only you've known about > their existence. For what i've read on spread posts i feel like there are > many such tools. > > There are many tools in Smalltalk! For application development sometimes you just find them browsing Google, there are old packages with lot of features you may apply. But check carefully because many of them were written for a particular domain or use case. > I had this experience of useful resource existence ignorance with > TilingWindowManager (LaurentLaffont ) and with RBConfigurableFormatter > (by the way i can't figure out how to turn it on). > Have you tried to use System -> Settings browser -> Formatter? Cheers, HernÃ¡n > Now i feel like having a multiclipboard would be useful (i have one on my > OS but anyway...) > > Best, > Laura > > > >

Jan. 13, 2015

Useful tools?

by Laura Risani

Hi all, What are some tools / plug-ins/ projects / packages / frameworks you find very useful or you use very frequently for development? (please for each name it and state it's purpose) I'm a newcomer to Pharo , so it hasn't to be something rare. On the side... I feel curious about how one gets to know about the existence of such resources. Is there any sort of "resources index" (like a wiki page with categories)? Besides books which can't be comprehensive because of their nature. Such an index would be extremely handy in many ways. Do you agree? Is it plausible, if it doesn't exist, to built it collaboratively? It is a sad thing that useful tools go unnoticed when they could have solved a problem you faced or eased your work if only you've known about their existence. For what i've read on spread posts i feel like there are many such tools. I had this experience of useful resource existence ignorance with TilingWindowManager (LaurentLaffont ) and with RBConfigurableFormatter (by the way i can't figure out how to turn it on). Now i feel like having a multiclipboard would be useful (i have one on my OS but anyway...) Best, Laura

Jan. 13, 2015

Capturing a stream

by Demian Schkolnik

Hello everyone. I have the following question. I have a specific 'echo ...' command, which I send to the linux console via " OSProcess command:'echo ... ' ". This echo command, when executed on the native linux console, stands by until it receives some message. Following this, I have to execute a 'pub...' command, which gives some information that the echo command will print on screen. On linux, you run 'echo..' on a terminal and 'pub...' on another. My objective here is to capture the output of echo into a smalltalk variable for later use. Normally, if a console command prints something immediately to screen, I use *(PipeableOSProcess command:'some command') output.* It is here a little different though, since this command will not print something immediately to screen. I want to do something like this, where the final output of 'echo..' stays in stringVar. *stringVar := (PipeableOSProcess command: 'echo...') output. * *(Delay forSeconds:3) wait.* *(OSProcess command: 'pub... ').* *(Delay forSeconds:3) wait.* Thank you all.

Jan. 13, 2015

Re: [Pharo-users] How to subclass Float class

by stepharo

Le 12/1/15 09:54, Hilaire a Ã©crit : > I hope the authors can see my question then. Anyway I will not use > Aconcagua for now because it is a bit overkill for my needs, I just > followed Joachim tips. why overkill you can just use what you need. > > The Aconcagua package looks nicely designed and well test covered. > > Thanks > > Hilaire > > Le 11/01/2015 21:03, stepharo a Ã©crit : >> ask the authors they are both in the pharo mailing-list. >> >> Le 11/1/15 16:25, Hilaire a Ã©crit : >>> Very interesting reading. >>> >>> The formula in figure 1 is wrong as it is "composed" interest, and power >>> should be used. >>> >>> rate := 10 % / 1 year >>> terms := 6 months >>> >>> 100$ * (1 + rate) ^ terms >>> >>> So I wonder how the simplification as exposed in Fig. 4 goes in that >>> case (rate should be transformed to 10/1200) and would be really >>> interested if the model can fit the real situation: how the model can >>> deduce rate per year should be adapted to rate per month without a prior >>> knowledge of the formula meaning. >>> >>> In Smalltalkhub I see two Acomcagua packages, which one to use? >>> >>> >>> Hilaire >>> >>> >>> Le 11/01/2015 12:22, stepharo a Ã©crit : >>>> Hilaire >>>> >>>> you have also acancagua that support unit and conversion and aconcagua >>>> came out of a project dealing >>>> with money and trades. >>>> >>>> http://sdmeta.gforge.inria.fr/Teaching/CoursAnnecy/0506-M1-COO/ >>>> read the two articles in there. >>>> >>>> Stef >> >> >

Jan. 12, 2015

Re: [Pharo-users] if Pharo is key for you

by stepharo

In which format? I will put them on a dropbox folder and send them to you. If I forget, please reminded it to me. Stef Le 12/1/15 00:05, Offray Vladimir Luna CÃ¡rdenas a Ã©crit : > Hi, > > Yep, would be nice to have that slides to add to my open Zotero > collection about Pharo/Smalltalk > > [1] > https://www.zotero.org/groups/diseo_y_creacion_phd_msc_universidad_de_calda… > > Cheers, > > Offray > > > > El 11/01/15 a las 15:05, stepharo escribiÃ³: >> super! >> It is always good to do retrospective analysis to see what we learned >> and it looks like you learned a lot. >> If you need pharo slides let me know. >> >> Stef >> Le 11/1/15 17:21, Offray Vladimir Luna CÃ¡rdenas a Ã©crit : >>> Hi all, >>> >>> Just picking up some old threads, so I answer this below. >>> >>> El 18/09/13 a las 01:19, StÃ©phane Ducasse escribiÃ³: >>>> Hi guys >>>> >>>> if Pharo is key for you then you should ask yourself what you did for >>>> Pharo recently. >>>> Writing code, writing documentation helping closing bug entries, >>>> participating to the association, to the consortium... >>>> >>>> Pharo is not happening from spontaneous generation. >>>> >>>> Stef >>>> >>> >>> Well I recently (previous semester) start to: >>> >>> 1. Learn Pharo. >>> 2. Develop my own app to learn and write about the process [a][b]. I >>> will be payed for this prototype and will be a paying member of the >>> association. >>> 3. Made my local group of Pharo/Smalltalk on Data narratives and >>> visualization for Open/Garage/Citizen Science & Research at our local >>> hackerspace with several (3 or 4) meetings that will continue this >>> year [c]. >>> 4. Read a lot of previous email to be aware the community memory and >>> revive older threads when is possible and trying to be a more >>> proactive/visible member of this community, even in my newbie >>> condition. >>> >>> So, what I'm planing for this year: >>> >>> 1. To learn/teach more about Pharo specially moldable tools, fluid >>> interfaces and good devel practices. >>> 1. To have a good application with some data narratives and >>> visualization build on it. A good download page, documentation and >>> with clean code instead of the rookie one I have now. >>> 2. To create a stronger local community around data >>> visualization/narratives for Open/Garage/Citizen Sciecen & Research >>> powered by Pharo. >>> 3. To write more. >>> 4. Economical contributions to the community through the association. >>> 5. Hopefully make stronger ties to the international community in >>> South America or Europe by participating in some event or scholarship >>> (this will depend on costs). >>> >>> Thanks for the questions and I will be glad to read other >>> answers/prospective about persons and Pharo, >>> >>> Cheers, >>> >>> Offray >>> >>> Links: >>> ====== >>> >>> [a] >>> http://mutabit.com/deltas/repos.fossil/grafoscopio/doc/tip/Docs/Es/Articulo… >>> >>> >>> >>> [b] http://smalltalkhub.com/#!/~Offray/Grafoscopio/ >>> >>> [c] http://hackbo.co/ >>> >>> >>> >>> >> >> >> > > > >

Jan. 12, 2015

[ANN] Visual Memory profiler

by Alexandre Bergel

Dear Friends and Colleagues, We are happy to announce Memory Profiler, a new profiler for Pharo. This profiler gives a nice output that indicates the memory consumption along the method call graph. Consider the following piece of code: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= (MSP profile: [ Object browse ] onPackagesMatching: 'Nautilus*' ) inspect -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Consider that MSP uses instrumentation, therefore long execution may take really long. The code above takes about 19 seconds on my iMac. It opens a visualization that indicates some interesting fact about memory consumption. For example, the expression âObject browseâ consumes 14 851 kb with instances of the class Point. More than 1M of points are created. Here is the blueprint obtained: https://dl.dropboxusercontent.com/u/31543901/TMP/memoryBlueprintExample.html A description of the visualization is available here: https://dl.dropboxusercontent.com/u/31543901/MyPapers/Infa15a-MemoryProfili… You need to load Spy from the Configuration Browser. Else the following incantation should work: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Gofer it smalltalkhubUser: 'ObjectProfile' project: 'S2py'; configurationOf: 'Spy'; loadDevelopment. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Cheers, Alejandro & Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

Jan. 12, 2015

Re: [Pharo-users] VALS semester of code

by Martin BÃ¤hr

Excerpts from Martin BÃ¤hr's message of 2015-01-12 04:01:59 +0100: > i am a mentor for FOSSASIA, which is signing up for VALS semester of code: > http://www.semesterofcode.com/ > http://vps2.semesterofcode.com/ > > while discussing potential projects on irc, the suggestion came up that since > squeak and pharo have been participating in the Google summer of code before > through ESUG, you might be interested in the VALS semester of code too. I don't know if anyone from ESUG, squeak and pharo orgs have tried to sign up, but in case they haven't, in the meantime FOSSASIA has been accepted, and since i am mentoring a few smalltalk projects, i would like to invite squeak and pharo developers to join me as mentors, and also offer you to mentor your own projects. my smalltalk projects are here: http://labs.fossasia.org/2015/01/10/smalltalk-search-app.html http://labs.fossasia.org/2015/01/10/smalltalk-file-editor.html Registration for mentors is by invitation, so if you are able to mentor projects please send me an email with details about projects you would like to mentor. We only have a short time to register mentors and list projects, so please reply as soon as you can. The name of the project Describe the project At a minimum, please include the expected outcome of the project, a potential mentor, the skills and/or languages required to complete the project, and a general "difficulty" level. The project should take about 3 months to complete. Please bear in mind that it's better to start with a smaller project that can be extended if your student proves to be capable rather than have an over-ambitious idea which can't be completed in time. The url of this project This could be for example a link to a bug tracker issue or google doc that describes the project idea. Some tags to facilitate searching (Delimited by comma i.e. php, javascript, html) greetings, martin. -- eKita - the online platform for your entire academic life -- chief engineer eKita.co pike programmer pike.lysator.liu.se caudium.net societyserver.org secretary beijinglug.org mentor fossasia.org foresight developer foresightlinux.org realss.com unix sysadmin Martin BÃ¤hr working in china http://societyserver.org/mbaehr/

Jan. 12, 2015

Re: [Pharo-users] Metacello does not load the expected version from ConfigOf

by Dale Henrichs

On 1/12/15 1:43 AM, Usman Bhatti wrote: > > > On Sun, Jan 11, 2015 at 7:14 PM, Dale Henrichs > <dale.henrichs(a)gemtalksystems.com > <mailto:dale.henrichs@gemtalksystems.com>> wrote: > > Usman, > > Well I don't have an official bugfix yet, but if you filein the > attached method and run the following, PetitParser will downgrade > and get loaded correctly (at least it worked for me)...The fist > two statements are intended to replace GTMetacelloPlatform with > MetacelloPharo30Platform and initialize the registry correctly ... > not sure what impact on Moose these changes will have) : > > > MetacelloPharo30Platform initialize. > [ > MetacelloProjectRegistration > resetRegistry; > primeRegistryFromImage ] > on: Warning > do: [ :ex | > Transcript > cr; > show: 'Warning resumed: ' , ex description. > ex resume ]. > Metacello new > configuration: 'DummyParser'; > version: '1.0'; > repository: '???'; > onDowngrade: [:ex :existing :new | > existing projectName = 'PetitParser' > ifTrue: [ > new projectSpec operator: #=. > ex allow ] > ifFalse: [ ex disallow ] ] ; > load. > > > I tried this script as you told but it didn't load the specific > version I was expecting. I had this message printed on Transcript: > > Warning resumed: Warning: Error finding current version of > ConfigurationOfMoose. Probably an invalid specification. > Warning resumed: Warning: Error finding current version of > ConfigurationOfSmallDude. Probably an invalid specification. > Loading 1.0 of ConfigurationOfDummyParser... > Project: PetitParser 1.51 > ...finished 1.0 > > I can wait until you do an official release for this bug fix. In the > meantime, I've created a configOf my own which means I can find > alternate solutions to replace downgrade. I felt that downgrade is yet > a must because one would not like to upgrade all the time. And one > would not like to load packages by hand when configOf is complex. My > configOf works currently but with downgrade available it'll be much > more cleaner. > Ah ... sorry ... I had made one other change and forgot to mention that:( I did rename the version to 1.5.1 both in petitparser and dummy ... Ah well, you are functional and you have certainly helped me, so I appreciate your help ... My first cut at a fix solves the downgrade but introduces other issues, so I still working things out:) Thanks again! Dale

Jan. 12, 2015

Re: [Pharo-users] issue with and/or inlining

by Marcus Denker

> On 12 Jan 2015, at 12:08, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > >> On 12 Jan 2015, at 10:57, Marcus Denker <marcus.denker(a)inria.fr <mailto:marcus.denker@inria.fr>> wrote: >> >> >>> On 10 Jan 2015, at 12:20, Evan Donahue <emdonahu(a)gmail.com <mailto:emdonahu@gmail.com>> wrote: >>> >>> Hmm, so that works when I annotate my test class, but I probably shouldn't be >>> exporting pragma concerns to my end users. Was your other suggestion about >>> dealing with the warning itself something I could do, or were you referring >>> to a change to pharo itself? >> >> I think we should remove the warning. >> >> https://pharo.fogbugz.com/f/cases/14701/compile-normal-message-send-for-and… <https://pharo.fogbugz.com/f/cases/14701/compile-normal-message-send-for-and…> >> > This is now in Pharo4 update 40439 > I made another change that removes the checks from all but âifâ inlining: https://pharo.fogbugz.com/f/cases/14716/Remove-all-notify-from-inline-check… <https://pharo.fogbugz.com/f/cases/14716/Remove-all-notify-from-inline-check…> maybe we should even remove it from ifTrue*â¦ there is checks that the blogs have 0 args. (if we remove it it will instead compile a message send and then raise the error at runtime, making ifTrue&co optimisation transparent, too. Marcus

Jan. 12, 2015