July 2021 - Pharo-users - lists.pharo.org

How do I remove old classes?
by Clacton Server July 23, 2021

July 23, 2021

I have been having an enduring problem with Pharo "disappearing" on any machine I try it on. In an effort to resolve that it isn't my code, I want to remove the Package that contains all my Seaside code so that I can install a minimal home page under Seaside. This will, at least exonerate my code. However, I have removed the offending package, executed Smalltalk cleanUp: true but I can still get into the old code. A debugger comes up when I try the old code and it shows "AnObsoleteCNWMeetingsGalleries(AnObsoleteCNWBasic)" so the code is still there and all the bots that have the address will still be calling it. How do I finally remove the code? David Pennington

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[ANN] Buoy v6.1.0 [v6.1.0] released!
by Buenos Aires Smalltalk July 23, 2021

July 23, 2021

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Pharo concurrency: select on socket or file IO
by vinref＠gmail.com July 22, 2021

July 22, 2021

Can the Pharo VM or a library do a âselectâ on a collection of processes waiting on a socket or file IO? Something like https://man7.org/linux/man-pages/man2/select.2.html, or https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-sel…. Say I have a bunch of forked processes and some will get blocked waiting for IO. I would put the blocked connections/processes in a collection and non-blocked processes can continue to do useful work. At some appropriate I would do a select on the blocked processes and resume those that are done. Vince

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Share package
by mspgate＠gmail.com July 22, 2021

July 22, 2021

Hello everybody, sorry for the newbie question. I would like to know what is the fastest, lightweight way to share a package with other Pharo users. the package can be downloaded from my GitHub. thanks. d

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[ANN] smalltalkCI now supports Pharo 10
by Esteban Lorenzano July 21, 2021

July 21, 2021

... this is more for Pharo developpers than Pharo users, but informing also users just in case :) https://github.com/hpi-swa/smalltalkCI/pull/538 Esteban

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How to handle (recover) from a ZnInvalidUTF8: Illegal continuation byte for utf-8 encoding error?
by Tim Mackinnon July 20, 2021

July 20, 2021

Hi - Iâm doing a bit of log file processing with Pharo - and Iâve hit an unexpected error and am wondering what the best way to approach it is. It seems that I have a log file that has unexpected characters, and so my readStream loop that reads lines gets an error: "ZnInvalidUTF8: Illegal continuation byte for utf-8 encodingâ. For some reason this file (unlike my others) seems to contain characters that it shouldnât - but what is the best way for me to continue processing? Should I be opening my files in a different way - or can I resume the error somehow- Iâm not familiar with this area of Pharo and am after a bit of advice. My code is like this (and I get the error when doing nextLine) parseStream: aFileStream with: aBlock | line items | [ (line := aFileStream nextLine) isNil ] whileFalse: [ items := $/ split: line. items size = 3 ifTrue: [aBlock value: items]] My stream is created like this: firmEfs := (pathName , '/' , firmName , '_files') asFileReference. details parseStream: firmEfs readStream. Should I be opening the stream a bit differently - or can I catch that encoding error and resume it with some safe character? Thanks for any help. Tim

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Pharo 9.0 vm same-as Pharo 8.0 ?
by igouy2＠yahoo.com July 20, 2021

July 20, 2021

Seems like the files from â https://files.pharo.org/get-files/90/pharo64-linux-stable.zip â are the same as Pharo 8.0 â 5\.0-202002121043 Wed Feb 12 11:06:45 UTC 2020 gcc 5.4.0 \[Production Spur 64-bit VM\] Is that as-intended?

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How to use Spec 2.0 with GTK in Pharo 9.
by jbn126859530.7 July 19, 2021

July 19, 2021

Hi. I'm learning Spec 2.0 with the help of the book "Building user interface with Spec 2.0". In section 2.17 of the book, the authors make a subclass of SpGtkConfiguration. However, no such class exists, only a SpMorphicConfiguration. Moreover, if I do something like: "app useBackend: #Gtk", I get a NotFound error. Again, "app useBackend: #Morphic" work as intended. As Pharo 9 annonced the availability of a GTK backend, I would like to know how to access it. Thanks. tau.

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Pharo 9 released - a brief experience report
by Yanni Chiu July 19, 2021

July 19, 2021

First, great work and thanks to all contributors. Using macOS Big Sur version 11.4 on MacBook Air 2019... 1. In a new sub-directory "pharo9" (I was using a pharo8 directory, so pharo9 is to keep things separate). In pharo9, I used "curl -L https://get.pharo.org/64/ | bash" to get the latest release. Then I ran ./pharo-ui to start Pharo. Very strangely, it was able to present my pharo8 images to choose for opening. I quit without choosing any image, then went looking to find out how it was able to find the settings. In the course of that, I realized the default download had got me the 8.0 release. 2. Then I used "curl https://get.pharo.org/90+wm | bash". The image came up with a strange looking dialog across the top that indicated freetype font lib's could not be loaded. I just proceeded and was able to navigate somewhat. The Settings for fonts were completely absent. I kept browsing, but more freetype font problems kept appearing. 3. I then compared the dylib's in the pharo-vm (what I had in pharo8) vs. what I just got in pharo9 - very different lists. I copied the libfreetype.6.dylib, libfreetype.dylib, and libFT2Plugin.dylib files to the new vm, and then the Pharo9 image came up nicely. 4. I thought I was home free, and continued browsing. I happened to look at the Pillar-Core code, and I got "Cannot locate libcairo.2.dylib". Browsing a few other places did not show this problem. That's it for now. I will try a bit more later, but I'm going back to Pharo8 for today. Yanni Chiu

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leave
by cedalion July 18, 2021

July 18, 2021

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