December 2015 - Pharo-users

CI build stuck?
by Johan Fabry Dec. 23, 2015

Dec. 23, 2015

Hi all, I noticed that since some days the CI builds for LRP are stuck, they take forever and donât do anything. I thought it was aCI issue and the dev team was aware of this and it might clear itself up after some time but apparently itâs not the case. So this is to give a heads up, just in case â¦ URL of the project is https://ci.inria.fr/pharo-contribution/job/LiveRobotProgramming/ Console output of current build (Started 21 hr ago): Started by timer Building remotely on rmod-mac302.lille.inria.fr (32 mac) in workspace /Users/jenkins-pharo/Documents/ci.inria.fr/pharo-contribution/workspace/LiveRobotProgramming Deleting project workspace... done Triggering 50,development,vm Configuration 50,development,vm is still in the queue: Waiting for next available executor ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

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[JOB][OFFTOPIC] Mobile Developer: iOS.
by marcus.denker＠inria.fr Dec. 23, 2015

Dec. 23, 2015

(a bit off-topic, 2Denker GmbH, a member of the Pharo Consortium, is looking to hire an iOS developer) 2Denker GmbH is looking for a full time iOS developer to strengthen our international team of mobile developers. - Permanent job - International Team - Cologne! With Carneval! 2Denker GmbH is a small company with offices in the center of Cologne (close to Neumarkt square). We work in small teams on software for mobile devices (fronted / backend). The work consists both in maintenance (and further development) of existing applications as well as developing new projects from scratch. We are looking for a developer to join the team locally in Cologne, to be hired on a permanent contract. - iOS programming - UI Design - Location based services - Speaking german is a plus but not required Company: 2denker GmbH Contact: Herr Norbert Hartl Where: Reinoldstr. 6 50676 Koeln Phone: +49 221 27225945 E-Mail: mail(a)2denker.de Website: http://2denker.de (english website is quite out of date...)

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Pharo RDBMS Support Survey
by Esteban A. Maringolo Dec. 23, 2015

Dec. 23, 2015

Hello all, I just created this survey (https://goo.gl/pcc9u8) to collect information about the users of RDBMS in Pharo. Please promote it in the social networks, so I can get as many responses as possible. URL: https://goo.gl/pcc9u8 I'll share the results in a month or before if I get 100 responses. :) Thank you! Esteban A. Maringolo

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Running Pharo on iPad
by Dimitris Chloupis Dec. 23, 2015

Dec. 23, 2015

I recently got an ipad mini and I was wondering if its possible to install pharo in it . Is it ? Anyone done this ? Do I need to jailbrake my iPad ? I also read that is now possible to install apps to iOS devices via XCODE, anyone tried that ?

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NeoJSON: parsing mapped nil fields
by Skip Lentz Dec. 22, 2015

Dec. 22, 2015

Hi all, When parsing with NeoJSON, Iâm experiencing some problems. If I parse a JSON representation using NeoJSONReader>>next (i.e. not according to a schema), it parses nil fields just fine. But when I explicitly set a value schema, it wonât parse it in the case it is nil (or ânullâ in JSON). Is there a way to let it return nil in the case the parser encounters ânullâ, and otherwise serialize it as a value schema (e.g. a Point class). Taking the example from the paper (https://github.com/svenvc/docs/blob/master/neo/neo-json-paper.md <https://github.com/svenvc/docs/blob/master/neo/neo-json-paper.md>): (NeoJSONReader on: ânull' readStream) mapInstVarsFor: Point; nextAs: Point. Is there a way to adapt the above snippet so that it evaluates to ânilâ instead of resulting in an error? I ask because I am parsing an API response which sometimes contains a ânullâ field, and sometimes a JSON object for that field. Thanks.

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RemoteTask does not work on Macos
by Dimitris Chloupis Dec. 21, 2015

Dec. 21, 2015

I tried to run the parrarelExample method of RemoteTask class which is loadable from CommandShell project and it seems it looks for a plugin that cant find. It gives me a warning forkSqueak requires XDispalyControlPlugin if I proceed I get another warning process accessor module not available if i proceed I get MNU: receiver of "pid" is nil

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Where is the documentation for the FFI ?
by Dimitris Chloupis Dec. 21, 2015

Dec. 21, 2015

I am considering porting my python bridge from sockets to a C DLL , but I cant find documentation for the Pharo FFI , where is it ?

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encoding challenge
by Robert Withers Dec. 21, 2015

Dec. 21, 2015

A core part of communications, whether online or to persistence, is encoding, or marshalling. Let's do an example! Thank you for your thoughtful, earnest participation, as God wills it. Here are 2 methods that encode and decode a DateAndTime object, but rather poorly. I've been going without much sleep for a bit and I can't figure it out. Here is the code in hopes that some will find this an interesting exercise in team and community building. For that intention, as a beginning. What's the best solution? Let's show them how to code when given the space in the environment. Tnks! :) In class ASN1UTCTimeType.. encodeValue: anObject withDERStream: derStream | yy mo dd hh mm ss utcDateTime | yy := anObject year asString copyFrom: 3 to: 4. mo := anObject month asString padded: #left to: 2 with: $0. dd := anObject dayOfMonth asString padded: #left to: 2 with: $0. hh := anObject hour asString padded: #left to: 2 with: $0. mm := anObject minute asString padded: #left to: 2 with: $0. ss := anObject seconds asString padded: #left to: 2 with: $0. utcDateTime := (yy, mo, dd, hh, mm, ss, 'Z') asByteArray. derStream nextPutAll: utcDateTime. decodeValueWithDERStream: derStream length: length | aUTCDateTime | aUTCDateTime := (derStream next: length) asByteArray asString. ^ (DateAndTime readFromString: ( ((aUTCDateTime copyFrom: 1 to: 2) asInteger > 50 ifTrue: ['19'] ifFalse: ['20']), (aUTCDateTime copyFrom: 1 to: 2), '-', (aUTCDateTime copyFrom: 3 to: 4), '-', (aUTCDateTime copyFrom: 5 to: 6), 'T', (aUTCDateTime copyFrom: 7 to: 8), ':', (aUTCDateTime copyFrom: 9 to: 10), ':', (aUTCDateTime copyFrom: 11 to: 12))) offset: 0 -- . .. .. ^,^ robert

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[ANN] Multiple Desktop support for Pharo 5
by Torsten Bergmann Dec. 21, 2015

Dec. 21, 2015

Julien Delplanque provided this week a goodie to switch between "desktops" - but his initial solution was more or less hiding windows and not really switching between real Pharo worlds/desktops. I gave him some tips what could be done on the pharo-user list. Havent heard from him afterwards. Now I was able to spend a few hours on this topic myself and implemented a full multiple desktop solution myself. This works in Pharo 5 only (currently) and requires latest VM (at least on Windows) from files.pharo.org to get the keyboard shortcuts right. To try: Gofer new smalltalkhubUser: 'TorstenBergmann' project: 'DesktopManager'; configuration; loadDevelopment. The goodie has some nice features like keyboard navigation, world menu integration and even a custom spotter with preview of the desktops. Quick start: =========== - evaluate the above expression in a Pharo 5 image - check the world menu "Desktop" - you can press CTRL + D and then CTRL + A (= Desktop Add) to add a new desktop - you can press CTRL + D and then CTRL + D (= Desktop Desktop) to open the overview - you can press CTRL + D and then CTRL + P (= Desktop Previous) to navigate to the previous desktop - you can press CTRL + D and then CTRL + N (= Desktop Next) to navigate to the next desktop The code is hopefully a good example on how to build a custom spotter, shortcuts, inspector extensions, ... Additionally all this is described in a new article including screenshots and a guide on how to use this new goodie: https://medium.com/@astares/multiple-desktops-for-pharo-5cbc46f3179f Actually the article took more time to write than coding but I hope it helps explaining Pharo and why it is a power tool. Project is on http://www.smalltalkhub.com/#!/~TorstenBergmann/DesktopManager Article and code is still subject to change. Have fun T.

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[Question] Inspecting a collection of strings in Pharo 5 -- edit pane for a string?
by H. Hirzel Dec. 21, 2015

Dec. 21, 2015

Hello I am inspecting a collection of strings in Pharo 5. I wonder how I get at an edit pane to modify a particular string? Thank you for the answer in advance --Hannes

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