November 2019 - Pharo-users

transactional saving of images
by Siemen Baader Nov. 18, 2019

Nov. 18, 2019

Hi, I have had a few occasions where I broke an image because I either ran out of disk space or had an endless loop that grew my image endlessly (I think). But why does Pharo not save the image & .changes file in hidden files named eg ~Pharo.image while it saves? Then it can rename them when saving was successful. Many unix programs do this. (I'm using pharo 6.1 so don't know if newer versions do this) -- Siemen

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Tech talk & demo of Pharo in SoCal this Wednesday
by tbrunz Nov. 18, 2019

Nov. 18, 2019

For those who will be in Southern California this week, I will be giving a talk & demo of Pharo this Wednesday night in Pasadena. Details here: https://www.meetup.com/SGVTech/events/266517925/ -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Re: [Pharo-users] Where did all the Comments Go?
by Andrew Black Nov. 15, 2019

Nov. 15, 2019

To try and make some progress, I copied a working image from another machine. On startup (on MacOS 10.14.6) I get this walkback: File class(ProtoObject)>>primitiveFailed: File class(ProtoObject)>>primitiveFailed File class>>fileDescriptorType: File class>>fileDescriptorIsAvailable: Stdio class>>standardIOStreamNamed:forWrite: Stdio class>>stdout VTermOutputDriver class>>stdout BasicCommandLineHandler(CommandLineHandler)>>initializeStdout BasicCommandLineHandler(CommandLineHandler)>>initialize BasicCommandLineHandler>>initialize BasicCommandLineHandler class(Behavior)>>new [ self new activate ] in BasicCommandLineHandler class>>startUp: in Block: [ self new activate ] BlockClosure>>cull: WorkingSession>>executeDeferredStartupActions: WorkingSession>>runStartup: WorkingSession>>start: SessionManager>>launchSnapshot:andQuit: [ isImageStarting := self launchSnapshot: save andQuit: quit. wait signal ] in SessionManager>>snapshot:andQuit: in Block: [ isImageStarting := self launchSnapshot: save and...etc... [ self value. Processor terminateActive ] in BlockClosure>>newProcess in Block: [ self value.... > On 19 Sep 2019, at 17:43 , Andrew Black <apblack(a)pdx.edu> wrote: > > Iâm coming back to Pharo after not having used it for several months. Iâm pleased to see that Pharo 7 is now stable and that work has started on Pharo 8. > > I downloaded a new Pharo Launcher (the old one could no longer figure out which version of the VM to use), used the Launcher to create a Pharo 7.0 stable image, and started loading my packages into it from github. > > My attempt to install the baseline of my code failed when some initialization code could not get the definitionComment for my parser (which is written using SmaCC). Normally, SmaCC stores oneâs whole grammar _as a method comment_ in a method called definitionComment. Oddly, this method was empty, even though the version on disk (in the file Grace-Parser.package/GraceParser.class/class/definitionComment.st) contained the comment, as I expected. > > Hoping to at least complete the installation of my code, I manually copied the comment from this file into Calypso and saved the method. It looked fine, but as soon as I moved Calypso to another method, and then back again, the comment had disappeared. I experimented with adding comments to other methods: they looked fine, and I could save the method, but if I moved to another method and then back, the comment had disappeared. > > Class comments have also disappeared. > > I donât think that this is a Calypso problem, because the loading of code from git would not involve Calypso. Rather it is a code storage problem. I saw a File System primitive failure when I launched my new image, but ignored it; Iâm guessing that the comments disappear because they are only in the file system, whereas the code is in memory. And for some reason I canât access the sources file? The changes file ahs been created as expected. > > I just tried downloading the VM manually, and running the âstableâ image that I created, and this time got a different file system primitive failure on startup: #createDirectory in MacStore. > > Whatâs going on? Whatâs the right way to get a working Pharo in the New World Order? > > Andrew > ____________________________ Prof. Andrew P. Black Department of Computer Science Portland State University Oregon, USA http://www.cs.pdx.edu/~black Telephone: +1 503 725 2411

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Zinc & IdentityServer4
by Siemen Baader Nov. 15, 2019

Nov. 15, 2019

Hi, Iâm trying to log a registered user into a webshop (https://mad.coop.dk) using Zinc, but it uses IdentityServer4 ( https://github.com/IdentityServer/IdentityServer4) for authentication (at https://accounts.cl.coop.dk/) So there are more steps involved than just submitting credentials. Usually I just inspect how things work in the Firefox console, then replicate the interactions in Pharo, but this system is a bit too complex, with many unrelated requests happening. Can anyone guide me towards the correct steps to sign in? thanks Siemen

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[Ann] TF-Login for Seaside 3.3 for Pharo 7
by Pierce Ng Nov. 15, 2019

Nov. 15, 2019

Hi all, Apologies for the x-posting. As per subject, I've ported TF-Login to Seaside 3.3 for Pharo 7. To load, start with fresh Pharo 7 image: Metacello new baseline: 'Seaside3'; repository: 'github://SeasideSt/Seaside:v3.3.3/repository'; load. Metacello new baseline: 'TFLogin'; repository: 'github://PierceNg/TF-Login:pharo7/src'; load. The baseline doesn't load Seaside, in case you want to load it into an image that already has Seaside. Start Test Runner and run the TF-Login tests. All 62 tests should pass. Pierce

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recovering non-ascii code in 6.1
by Siemen Baader Nov. 15, 2019

Nov. 15, 2019

Hi, I have a broken 6.1 image and uncommited code with non-ascii characters in it. When I drag the .changes file onto a new 6.1 image it won't import due to the non-ascii code, but I can rename the .changes file so it matches the new image's filename and import individual code changes (also with non-chars) with Wold Menu -> Tools -> Code Changes. Can I somehow file in the whole .changes file at once to end with the same code state as in the original image? -- Siemen

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Presenter initialization
by Kasper Ãsterbye Nov. 14, 2019

Nov. 14, 2019

Cheers, I want to make a Spec Presenter which can show rendered pillar. I have the necessary code to transform a pillar string document into Text with fonts and stuff. My problem is how to make the Presenter. To get moving I did not want to make a wysiwyg editor, but a simple two-mode thing. It either shows the rendered text or the pillar source. When I looked at the Spec components it seems a reasonable approach to make it a subclass of SpTextPresenter, to get all the editing of the source for free. Now after having made this subclass, PillarTextPreseanter, I realize it would be nice if I could tell the difference between rendering mode and editing mode. I thought it would be simple to use a slightly different background color for the editor in rendering mode. And here is the problem: - If I override "initialize" to change the color (self color: MyColor), it has no effect - If I override the "initializeWidgets" to change the color, it has no effect Flopping through the implementation of "openWithSpec", I find that I can implement an "announceDisplayed" method, and if I set the color in that method it does indeed keep the color. I have no idea how I should have found this out (except spending a Thursday morning on it), I am not sure it is the best solution. I have no idea why the other two methods do not work. At times I must admit I am truely baffled by the complexity of it all. Best, Kasper

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can I somehow test the contents of a package
by Roelof Wobben Nov. 13, 2019

Nov. 13, 2019

Hello, IM doing now this book to understand better the OOP side of Pharo : https://books.pharo.org/learning-oop/ im now at the last challenge of the network-simulator and im stuck. I want to test if the send package is really send back uppercase but I cannot find a way to see the contents of the package in my test I have made so far : https://github.com/RoelofWobben/network/blob/master/NetworkSimulator-Tests/… Can anyone give me a hint how I can achieve what I want ? Regards, Roelof

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Re: [Pharo-users] Was there some force push to Roassal?
by Cyril Ferlicot Nov. 12, 2019

Nov. 12, 2019

On Sun, Nov 10, 2019 at 2:42 AM Alexandre Bergel via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > Hi Cyril, > > I tried something to remove some large blob from the history. The code source of Roassal2 is about 7Mb large, but the .git folder is about 150 Mb! > But at the end, it was the push was rejected because some pullrequests exist. So, I did not suspect that I had an impact. Sorry about that. > > Help is welcome to shrink Roassal2âs .git folder. > Hi, A force push is a destructive operation. It's really not recommended to use it on a used project in any case. Even if it's to win some space, it's not worth it. For the .git folder, in general when they grow too much it's often only local. The .git folder of my local clone of roassal is 384B and I have it since month and it is up to date. The "easy" solution is to clone again. Most of the time when I have a clone that is too big, the command `git gc` is enough to shrink it. > Cheers, > Alexandre > > > -- Cyril Ferlicot https://ferlicot.fr

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Nov. 12, 2019

The Pharo Consortium is very happy to announce that the UniversitÃ© de Maroua has joined the Consortium as an Academic Member. About - UniversitÃ© de Maroua: http://www.univ-maroua.cm/ - Pharo Consortium: http://consortium.pharo.org The goal of the Pharo Consortium is to allow companies and institutions to support the ongoing development and future of Pharo. Individuals can support Pharo via the Pharo Association: - http://association.pharo.org

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