May 2017 - Pharo-dev - lists.pharo.org

Debugger questions
by Stephane Ducasse May 26, 2017

May 26, 2017

Hi In the code below I want to the value of (currentNames includes: v) If I remember correctly in the past I could position my cursor and say run up to caret. But I cannot find it. valuesOnlyBy: aRowKey | valueNames | valueNames := self valueNamesOf: aRowKey. (self rowKeysExcept: aRowKey) do: [ :eachRowName | | currentNames | self halt. currentNames := self valueNamesOf: eachRowName. valueNames do: [ :v | (currentNames includes: v) ifTrue: [ valueNames remove: v ]. valueNames isEmpty ifTrue: [ ^ #() ] ] ]. ^ valueNames BTW Does anybody understand what through is doing and how to use it? I do not understand the fly by help :(((((((((((((((( Nor when I use it. Stef

2 2

Booklet suggestion
by Ben Coman May 26, 2017

May 26, 2017

I've seen a few requests for short bits of code to use in playground for a demo presentation. I wonder if it would be good to have a booklet to gather these - seeded with Sven's excellent article... https://medium.com/concerning-pharo/elegant-pharo-code-bb590f0856d0 It could include the recent meta-programming scripts like searching for all class instance variables starting with a capital letter. The book might be named "Snippets", in a format presentable to laser print on-site - something physical for attendees to take away with them to quick demo to others back in their office. I can take the lead in setting it up. Anyone remember any relevant posts in our archives? cheers -ben

5 9

multiple crashes on macOS Sierra
by Tudor Girba May 25, 2017

May 25, 2017

Hi, Today I experienced multiple crashes on macOS Sierra. These happened during regular programming, mostly while typing code. I attached here the crash dump(s). I believe I heard Phil having the same issue with the stable Pharo VM. Does anyone else has the same issue? The VM is: CoInterpreter VMMaker.oscog-eem.2203 uuid: 12d4afae-8498-4e76-8efe-60eba6ef4db2 May 2 2017 StackToRegisterMappingCogit VMMaker.oscog-eem.2203 uuid: 12d4afae-8498-4e76-8efe-60eba6ef4db2 May 2 2017 VM: 201705021552 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Tue May 2 08:52:41 2017 -0700 $ Plugins: 201705021552 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ The Pharo update number is: 60482 Cheers, Doru -- www.tudorgirba.com www.feenk.com "From an abstract enough point of view, any two things are similar."

3 4

Re: [Pharo-dev] [Seaside-dev] Updated Seaside Control Panel for Pharo 6 / Seaside 3.2
by Sven Van Caekenberghe May 25, 2017

May 25, 2017

> On 25 May 2017, at 11:43, Stephan Eggermont <stephan(a)stack.nl> wrote: > > On 24/05/17 16:27, Sven Van Caekenberghe wrote: >> I updated the Seaside Control Panel for Pharo 6 / Seaside 3.2. As far as I can see, it works fine now. > > Did you find the original fix that is already in the repo? No, I did not. I am sorry. And I did not see those of Philippe either. What a mess ;-) > Stephan > > > _______________________________________________ > seaside-dev mailing list > seaside-dev(a)lists.squeakfoundation.org > http://lists.squeakfoundation.org/mailman/listinfo/seaside-dev

3 2

Updated Seaside Control Panel for Pharo 6 / Seaside 3.2
by Sven Van Caekenberghe May 25, 2017

May 25, 2017

Hi, I updated the Seaside Control Panel for Pharo 6 / Seaside 3.2. As far as I can see, it works fine now. I don't know the exact procedure to get this into Seaside proper, hence I include the MC package. It is obviously important to get this in before we release Pharo 6, but it is probably also a good idea that somebody else has a look at what I did. === Name: Seaside-Pharo-Tools-Spec-SvenVanCaekenberghe.20 Author: SvenVanCaekenberghe Time: 24 May 2017, 4:17:49.490067 pm UUID: b1168881-a70c-0d00-9de6-8d500cd45859 Ancestors: Seaside-Pharo-Tools-Spec-JohanBrichau.19 Updated the Seaside Control Panel for Pharo 6 / Seaside 3.2 using latest Spec conventions - Add a refresh button to the main toolbar to sync with changes done outside the UI (add a #refreshAdaptors action and use it for add/remove updating as well) - Inform the user when remove fails due to a still running adaptor - Use IconListModel instead of NewListModel - Fix selection maintenance on the list of adaptors - Fix the context menu on the list of adaptors - Use new recommended icon access method - Added help strings to the buttons in the main toolbar - Added a proper About text - Add a window icon - Remove unused state/action stuff from the toolbar implementation === Sven PS: The 'Spec UI Framework' book was helpful as was Nicolai's help on the ML - Thank you.

3 5

Pharo booklet collection
by Stephane Ducasse May 25, 2017

May 25, 2017

Hi Pharoers You are lucky. The "Pharo booklet collection" edited by S. Ducasse is arriving... Are you ready to read nice and focused booklets? You can find at http://files.pharo.org/books/ in beta version: - Smacc: the Smalltalk Compiler Compiler by J. Brant, T. Goubier, J. Lecerf and S. Ducasse. - Glorp: the Object Relational Mapper framework by E. Maringolo, N. Pratt and R. Withney All the book material is hosted on https://github.com/SquareBracketAssociates so you can contribute! Fix typos and propose new material. We are planning a booklet on Magritte, Reddit in 10 cool classes, Voyage, and Mocking with BabyMock and Mocketry, XML (but we need a writer) and potentially PetitParser. If you have material for a tutorial and you would like to be part of the Pharo Booklet Collection contact S. Ducasse. S. Ducasse

5 10

100% out next 4 days
by Esteban Lorenzano May 25, 2017

May 25, 2017

Hi, Iâve been on holidays the whole week but listening and answering mails in general. Now Iâm out of internet until monday (I hope to survive ;) ). Anyway, any question/PR/etc.: monday ! :) cheers, Esteban

1 0

NLP Library + Generating Documentation
by Myroslava Romaniuk May 24, 2017

May 24, 2017

For my university end-of-term programming project which I am doing in Pharo, I created a method that returns a Bag of all words used in the courses' description repeated the same amount of times that they are in the text (I am working with Udacity API) so I could use them as keywords and determine which technologies are mentioned the most in each course. I am wondering how could I remove 'this' from the list of repeated words, and how to remove punctuation marks attached to the word? Do I use sentence segmentation in this NLP library <https://github.com/mark-watson/nlp_smalltalk> or is there another way to do that? And I don't really need verbs either so I suppose I should use Entity Recognition from the NLP Library? One more thing: as this is my uni project it needs to be sufficiently documented. Is there a way to generate documentation in Pharo? Cheers, Myroslava

1 0

Re: [Pharo-dev] Pharo booklet collection
by Tim Mackinnon May 24, 2017

May 24, 2017

I have submitted a pull request for the Reddit booklet - I didnât get a chance to try the docker image to see the results (I will get up to speed with that) - but I didnât want to have a branch out for too long. Its my first try at this (I liked the tutorial, it taught me a lot), and I wasnât sure how much to change in the text (and I certainly donât want to upset any previous authors - as its very readable in its present form). Tim > On 23 May 2017, at 18:34, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > > Hi tim > > you can follow the pillar chapter in entreprise book. > Now to produce pdf you have to install latex so I would not worry and do the pull request. > I will set up a jenkins job for each of the booklet so that people do not have to install latex. > > Stef > > >> On 23 May 2017, at 15:25, Tim Mackinnon <tim(a)testit.works <mailto:tim@testit.works>> wrote: >> >> Hi - so I forked a repo (the Reddit one), and am reading through it to check for typos (Iâve see a few). Obviously I can correct those, but how do I actually preview my changes to ensure I havenât screwed it all up? >> >> Iâm guessing I need to install Docker and pull down a specific image - which I can then use to generate the output to test it? Or, is there an ST image that I can run on this directory? >> >> As a quick scan of whats in a book repo - it all looks a bit more complicated than I expected - with make files and what look like âinplace templatesâ (as in format1.format2.format3 etc). Having played around with Metalsmith.io <http://metalsmith.io/> I think its sort of similar, but It seems like there is more to learn somehow? >> >> Tim >> >>> On 6 May 2017, at 11:36, Stephane Ducasse <stepharo.self(a)gmail.com <mailto:stepharo.self@gmail.com>> wrote: >>> >>> Hi phil >>> >>> yes I loved this idea. We got burned by that too. >>> >>> About pillar. The departure of Damien was not expected and it slows us quite a bit. >>> >>> We (mainly me helped with maxime) are working on >>> - making the pillar core nicer >>> - less dependencies >>> - and with a small in image renderer :) We had fun with guille >>> >>> >>> - In the pharo 60 version I started to clean the command-line. >>> - merged many unmerged changes. >>> >>> But even with all the tests it is not easy.... >>> I'm testing in addition with reall >>> - book production >>> - slides >>> - html >>> >>> But it takes time and energy. I'm trying to remove the dependencies to magritte for example. >>> >>> Stef >>> >>> >>> <Screen Shot 2017-05-06 at 12.33.18.png> >>> >>> >>> On Sat, May 6, 2017 at 9:30 AM, phil(a)highoctane.be <mailto:phil@highoctane.be> <phil(a)highoctane.be <mailto:phil@highoctane.be>> wrote: >>> For books, there is the docker-texlive thing from Damien that we >>> looked into yesterday because TexLive was giving some headaches. >>> >>> https://github.com/philippeback/docker-texlive <https://github.com/philippeback/docker-texlive> >>> >>> has my current thing for one to build a container with all >>> prerequisites for TexLive and Pharo installed. >>> >>> Idea is to clone the book repo on the host and get into an container >>> to build the book. >>> >>> There is a /work volume that can be mapped onto the host with the >>> docker run's -v command. >>> >>> Then just use ./download.sh in there to install Pharo and pillar in >>> the container. Do not do that in the host or you'll end up with wrong >>> versions (like my host is CentOS and the container is Ubuntu, even >>> worse with host is macOS or Windows). >>> >>> Then "make book" should give a book in build/ >>> There is a "make wipeout" command that obliterates the build folder >>> for good so you can start clean. No harm done on your files. >>> >>> Will document more of this but woul dbe nice if someone could check >>> this out too. >>> >>> There is a script in base/ to build the docker image. >>> >>> Phil >>> >>> On Sat, May 6, 2017 at 9:20 AM, Stephane Ducasse >>> <stepharo.self(a)gmail.com <mailto:stepharo.self@gmail.com>> wrote: >>> > I fixed it. >>> > The code for the web site in on github. >>> > >>> > Stef >>> > >>> > On Tue, May 2, 2017 at 10:32 PM, Esteban A. Maringolo <emaringolo(a)gmail.com <mailto:emaringolo@gmail.com>> >>> > wrote: >>> >> >>> >> Correct link seems to be >>> >> >>> >> >>> >> http://files.pharo.org/books-pdfs/booklet-Glorp/2017-05-02-Glorp.spiral.pdf <http://files.pharo.org/books-pdfs/booklet-Glorp/2017-05-02-Glorp.spiral.pdf> >>> >> Esteban A. Maringolo >>> >> >>> >> >>> >> 2017-05-02 17:28 GMT-03:00 phil(a)highoctane.be <mailto:phil@highoctane.be> <phil(a)highoctane.be <mailto:phil@highoctane.be>>: >>> >> > link for glorp gives smacc book error >>> >> > >>> >> > On Tue, May 2, 2017 at 10:25 PM, Stephane Ducasse >>> >> > <stepharo.self(a)gmail.com <mailto:stepharo.self@gmail.com>> >>> >> > wrote: >>> >> >> >>> >> >> Hi Pharoers >>> >> >> >>> >> >> You are lucky. The "Pharo booklet collection" edited by S. Ducasse is >>> >> >> arriving... >>> >> >> >>> >> >> Are you ready to read nice and focused booklets? >>> >> >> >>> >> >> You can find at http://files.pharo.org/books/ <http://files.pharo.org/books/> in beta version: >>> >> >> >>> >> >> Smacc: the Smalltalk Compiler Compiler by J. Brant, T. Goubier, J. >>> >> >> Lecerf >>> >> >> and S. Ducasse. >>> >> >> Glorp: the Object Relational Mapper framework by E. Maringolo, N. Pratt >>> >> >> and R. Withney >>> >> >> >>> >> >> All the book material is hosted on >>> >> >> https://github.com/SquareBracketAssociates <https://github.com/SquareBracketAssociates> so you can contribute! Fix >>> >> >> typos >>> >> >> and propose new material. >>> >> >> >>> >> >> We are planning a booklet on Magritte, Reddit in 10 cool classes, >>> >> >> Voyage, >>> >> >> and Mocking with BabyMock and Mocketry, XML (but we need a writer) and >>> >> >> potentially PetitParser. >>> >> >> >>> >> >> If you have material for a tutorial and you would like to be part of >>> >> >> the >>> >> >> Pharo Booklet Collection contact S. Ducasse. >>> >> >> >>> >> >> S. Ducasse >>> >> > >>> >> > >>> >> >>> > >>> >>> >> > > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr <http://stephane.ducasse.free.fr/> > http://www.synectique.eu <http://www.synectique.eu/> / http://www.pharo.org <http://www.pharo.org/> > 03 59 35 87 52 > Assistant: Julie Jonas > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley, > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France >

1 0

FileTree/Iceberg and SSDs, change the file format
by Stephan Eggermont May 24, 2017

May 24, 2017

At the PharoDays I was painfully reminded that SSDs perform really badly when using small files. The Bloc tutorial used a github filetree repo and that has a lot of files. The whole folder is 116 MB in 16K files. Copying that amount of data should not be noticable, taking about a third of a second. With it being in so many files, it took more than half a minute, or a hundred times as long. That is too much overhead. How can we improve the file format in a way that keeps the cross-platform exchange advantages and a reasonable way to view diffs and propose small changes using the github web tools? Cuis uses a different format with git. How does that compare? What is used in Squeak? Stephan

7 14