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

Microservices using Pharo
by Andrei Stebakov June 27, 2018

June 27, 2018

Does anyone use Pharo for Miro services? I heard about Seaside and Teapot, just was wondering if Pharo can handle multiple simultaneous requests and if it can, where it reaches the limit.

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[Ann] OSSubprocess v1.0.1
by Guillermo Polito June 27, 2018

June 27, 2018

Hi all, There is a new version of OSSubprocess available. This is a Bugfix release. This release fixes a problem with waitpid that happened regularly and randomly in OSSubprocess users mostly in the CI. For those interesting, the details of the bug can be read in: https://github.com/pharo-contributions/OSSubprocess/issues/36 Bugfix list #39 <https://github.com/pharo-contributions/OSSubprocess/issues/39> travis_wait hides smalltalkCI output #36 <https://github.com/pharo-contributions/OSSubprocess/issues/36> Often get waitpid() -1 in CI Thanks a lot to Pablo and Santi that helped me debugging, Enjoy, Guille

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[ANN] PolyMath release 0.101
by Serge Stinckwich June 27, 2018

June 27, 2018

We are pleased to announce the release of PolyMath 0.101 PolyMath is a numerical computing and data analysis library on top of Pharo. The code is available here: https://github.com/PolyMathOrg/PolyMath and can be loaded in a fresh Pharo 6.1 image with: Metacello new repository: 'http://smalltalkhub.com/mc/PolyMath/PolyMath/main'; configuration: 'PolyMath'; version: '0.101'; load The current work is mostly focused on cleaning the codebase in order to release the 1.0 version for September 2018. Please help us, by looking at the issues here: https://github.com/PolyMathOrg/PolyMath/issues , joining #polymath channel on Discord or polymath mailing-list: https://groups.google.com/forum/#!forum/polymath-project -- Serge Stinckwich UMI UMMISCO 209 (SU/IRD/UY1) "Programs must be written for people to read, and only incidentally for machines to execute."http://www.doesnotunderstand.org/

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copy & paste
by Otto Behrens June 27, 2018

June 27, 2018

Hi, A very annoying issue I'm having with Pharo 6.0 (running on Ubuntu 16.04) is that if I copy text from other applications (eg. chromium browser), I cannot paste it into Pharo. I get text copied in Pharo from a previous copy. To work around this, I have a "gedit" text editor open and I paste the text in there. After that, I cut it from the text editor and paste it into pharo. So, it appears as if this may be an issue with text (/encoding?). Any ideas? Thanks Otto

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[ANN] GNU Dr. Geo release 18.06
by Hilaire June 26, 2018

June 26, 2018

We are please to announce the Dr. Geo release 18.06. It follows the release 17.07 in July 2017. A large part of the effort was to port Dr. Geo from the Pharo 3 to Pharo 7 Smalltalk development environment. In addition to usual bug fixes several features were added. *Mini changelog:* - Dedicated Script browser - Inspector on Smalltalk Sketch - Positioning zoom - Unit tests based on Smalltalk sketch - Lan share - Graphic user interface theme - Fullscreen option - Lots of bug fixes Read the complete announcement <http://www.drgeo.eu/news/drgeorelease1806> Dr. Geo is always looking for volunteers to translate <http://www.drgeo.eu/news/weneedyou> its user interface. Hilaire Fernandes -- Dr. Geo http://drgeo.eu

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The cool implication of gtDocumentor gluing examples and how we might augment source naviagation
by Tim Mackinnon June 26, 2018

June 26, 2018

Hi guys - not sure how many people noticed this, but at the end of the tutorial for gtDocumentor, there is a section on Examples as Documentation. What is neat (and easily missed) is how when an example references another - there is a little triangle you can toggle to expose that example inline. (See photo). This isnât a completely new ideas (didnât Newspeak hopscotch do this?) but its very well done in gtDocumentor and this implication could be that if our code editors had this too - then its very handy to unfold code to understand it in one place without having to open new windows. (I still think there are times when you may want to do that - particularly for long chains of methods?) but its certainly an idea that I would be very receptive to having in our code browsers (heck - give me all of gtDocumentor in our source editors). Iâm wondering what others thing of this? Perhpas not for Pharo 7 - but Pharo 8 (pretty please?) Tim p.s. Note to @feenk, as its the last example its incredibly tricky to expand it to actually see it well as you canât scroll further down to then drag the window bigger. I had to add a lot of Crâs to make some space to do this.

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Interesting Pharo Launcher feedback
by Tim Mackinnon June 26, 2018

June 26, 2018

Hi everyone - at tonights month UK Smalltalk Meetup, we got some nice compliments on the state of Pharo (the participants - all ex small talkers - although ex in so much as they fondly remembered it and wanted to use it for something relevant now because they enjoyed it in the past). Anyway, one interesting comment stuck out - he had downloaded Pharo (having used Visual Age 15+ years ago) and was a bit overwhelmed with what laugher presented to him. He didnât hate it - but was initially a bit lost as to what it all meant and how to startâ¦ he figured it out, but I thought the feedback was interesting and made me think that maybe we need some form of intro wizard to get people off to a quick start but leave them confident enough that they might come back and try a Pharo 7 or Moose etc. I encouraged him to post something on here, but thoughtI would note it (as it seems quite easy to fix) as an idea while it was fresh in my mind. Tim

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Pharo 7, Iceberg, Proxy and Windows
by Vitor Medina Cruz June 26, 2018

June 26, 2018

Hello, Iceberg fail to function behind a proxy on Pharo 7 32bits Windows. When I try to clone I get a: IceGenericError: failed to get server certificate: The identifier is not in the correct state for the resquested operation I had a similar problem some time ago with Pharo 6, in which I made a local hot fix after questioning here. The fix was to the LGitCloneOptions and LGitFetchOptions both at the initializeWithDefaults, currently this method on LGitCloneOptions is like this: initializeWithDefaults self withReturnHandlerDo: [ self clone_init_options: self version: LGitOptionsVersionsEnum git_clone_options_version_1 ]. * self prim_fetch_opts prim_proxy_opts prim_type: LGitProxyTypeEnum git_proxy_auto* The bold is the fix, but it should come first in the method: initializeWithDefaults * self prim_fetch_opts prim_proxy_opts prim_type: LGitProxyTypeEnum git_proxy_auto* self withReturnHandlerDo: [ self clone_init_options: self version: LGitOptionsVersionsEnum git_clone_options_version_1 ]. That way worked on Pharo 6, but now I got a: "FFIVariableNameNotFound: Could not find accessor for variable named 'out'" Any clues? Regards, Vitor

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Calypso - can we improve the bar of radio buttons?
by Tim Mackinnon June 25, 2018

June 25, 2018

Hi - I donât want to case a UI war, particularly as I was very impressed with Denisâ presentation about Calypso at the PharoDays conference last year. Now that Iâve made a concerted effort to try and use Calypso, and in general like it, I do however find that the bar of Radio Buttons above the tabs is a bit overwhelming and Iâm wondering if there might be something we can do to help make it less so? Iâm sure the problem is the age old observation that a checkbox or button that toggles between states is difficult to understand whether its on or off and what the alternate state is - so this is why we now have a row of 8 radio buttons. But 8 is a lot of radio buttonsâ¦ which I find visually hard to parse and often find the order of the buttons the opposite to what I expect - eg. When I want to see class methods I keep pausing over that group to see which one to click (for some reason I keep thinking the class one should be before the instance one - not sure if anyone else notices this). Iâm also not overly keen on the terminology of âsideâ (as in class side, vs inst. side) and equally I question abbreviations like: Hier. Inst. Refs. Can we not just get rid of that bar completely - and put little icon buttons next to the filter field for pkg/project and flat/hierarchy ? OR given the method pane is now a tree and it already has an entry âinstance sideâ - why not just have entries for âinstance methodsâ and âclass methodsâ and just expand accordingly? We also now have a tab âInst. side methodâ - why not 2 tabs â+instance methodâ and â+class methodâ. It breaks a bit with regular smalltalk browser conventions - but I think Calypso has already pushed the boat out on all this anyway in favour of improved navigation and ease of typing code. My understanding is that this is all pretty doable with the mechanism Denis has put in place. Iâm tempted to have a look, but thought Iâd see what that general feeling is here, as maybe Iâm on my own here. Tim

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Calypso - how do you revert unsaved changes?
by Tim Mackinnon June 25, 2018

June 25, 2018

Hi - in Calypso in Pharo 7, there is a neat concept of method changes that are yet saved (and the top right of the editor has the normal orange smudge indicator). I like the idea (which lets you naviaged elsewhere to check something before making your change) - however if you want to revert that change and just go back to the original source - how do you do this? There is a little X indicator in the status bar - but that seems to do nothing (?). Do you have to use the versions menu and pick revert? But then when I do that - I see a Red smudge on the text pane now, and the method source hasnât reverted? So Iâm a bit confused what you are supposed to do? The closes I can get to - is closing the tab in the browser and then reclick on the method in question - but Iâm wondering if Iâm missing an obvious alternative? Tim

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