- Pharo-users - lists.pharo.org

Re: [Pharo-users] uFFI: Debugging "External module not found" Error
by Ben Coman Dec. 3, 2019

Dec. 3, 2019

> > > On Dec 3, 2019, at 11:34 AM, Sean P. DeNigris <sean(a)clipperadams.com> > wrote: > > > > Alistair Grant wrote > >> The same message is returned whether the module itself isn't found, or > >> if one of its dependencies can't be found. > Secondary dependencies are awkward to track via command line. > > > > Good to know. I wonder if we can't provide more detailed error messages > > here... > The following turned up in a search (I've no experience with it), but could be useful... https://linux.die.net/man/7/rtld-audit Or perhaps the system can examine the DYNAMIC section of an ELF to pre-load each dependency. >From the image, something in part equivalent to... https://github.com/finixbit/elf-parser/blob/master/elf_parser.cpp GT inspector on an ELF file could an interesting demo ;) btw, I wasn't aware of how "Runtime Search Path: Security" affected the search path... https://amir.rachum.com/blog/2016/09/17/shared-libraries/ > Alistair Grant wrote > >> On linux you can check dependencies with `ldd file.so`, I don't know > >> what the Mac equivalent is. > > > > Apparently, it's `otool -L whatever.dylib`, which returns: > > @rpath/libvlc.dylib (compatibility version 12.0.0, current version > 12.0.0) > > @rpath/libvlccore.dylib (compatibility version 10.0.0, current > version > > 10.0.0) > > /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current > version > > 1252.50.4) > > /usr/lib/libiconv.2.dylib (compatibility version 7.0.0, current > version > > 7.0.0) > On Wed, 4 Dec 2019 at 03:58, Todd Blanchard via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > This is the most annoying thing about UFFI - the library search seems to > opaque and I don't understand how it works. > > So far I am finding best practice is to find the library yourself and then > provide the exact file path you want. > > That way, you can actually prompt the user to find it if you don't and > they get a decent experience. > cheers -ben P.S. an interesting side article... https://medium.com/forensicitguy/whitelisting-ld-preload-for-fun-and-no-pro…

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uFFI: Debugging "External module not found" Error
by Sean P. DeNigris Dec. 3, 2019

Dec. 3, 2019

I was trying to get Pharo-LibVLC working on Mac. The following is copied from a GH issue[1]: > I have VLC installed via Homebrew cask, the formula for which simply > installs the dmg. I > first tried supplying a full path to the dylib that the VLC app uses > (/Applications/VLC.app/Contents/MacOS/lib/libvlc.5.dylib), which resulted > in "Error: > External module not found". I then remembered some trouble people have had > in the past > with FFI lookup locations and tried copying into the VM's plugin folder > both a link and the > actual dylib, with the same error. I read the uFFI booklet, but didn't > learn anything more. > > I also checked that the VLC lib was 64-bit via: > > lipo -info .../Pharo.app/Contents/MacOS/Plugins/libvlc.5.dylib > which returned: > Non-fat file: .../Plugins/libvlc.5.dylib is architecture: x86_64 [1] https://github.com/badetitou/Pharo-LibVLC/issues/1 ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Parsing in VW
by Steffen MÃ¤rcker Dec. 3, 2019

Dec. 3, 2019

Dear all, I have two questions regarding parsing frameworks. 1) Do you have any insights on the performance of SmaCC VS Xtreams Parsing VS PetitParser? 2) Has anybody started to port PetitParser 2 from Pharo to VW? Is it worth the effort? Sorry for cross-posting, I thought this might interest both communities. Cheers, Steffen

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thesis on using ML for Pharo code completion
by Myroslava Romaniuk Dec. 2, 2019

Dec. 2, 2019

Hi everyone I'm starting work on a thesis on using ML for Pharo completion, in particular n-gram language models, and I wrote a little blog post with some details and research questions that I have. Here's a link: https://medium.com/@myroslavarm/using-ml-for-pharo-autocompletion-ideas-80a… . Any feedback or ideas on the topic (and research questions) are most welcome. Best regards, Myroslava

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Porting to Pharo via Ring
by Sean P. DeNigris Dec. 1, 2019

Dec. 1, 2019

Pavel gave an intriguing high-level experience report on porting from VW to Pharo via (among other things) the Ring meta model [1]. Are any more specifics available? It would be valuable to the community to have knowledge of this process freely available. How would someone else actually go about this with another project? Would it help porting from one version of Pharo to another? [1] https://www.youtube.com/watch?v=XrOdlwtVfMM&list=PLJ5nSnWzQXi8DPNpy1jCkjE4y… ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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[ANN] Next Pharo Sprint: Nov 29
by Marcus Denker Nov. 25, 2019

Nov. 25, 2019

We will organize a Pharo sprint / Moose dojo Nov 29, starting at 10:00am. (Local Time Paris). Goals of this sprint: - Pharo 8: Fix issues from tracker https://github.com/pharo-project/pharo/issues <https://github.com/pharo-project/pharo/issues> Remote Sprint: Remotely, you can join us on Discord. During the sprint, we synchronize local and remote Pharo sprinters: http://pharo.org/contribute-events <http://pharo.org/contribute-events> We have added a Board to coordinate the work: https://github.com/orgs/pharo-project/projects/9 <https://github.com/orgs/pharo-project/projects/9> Known Local Sprint meetings - Lille/France: It will be at the Inria Lille, Building B, third floor (RMoD offices). As the building is not open to the public, please contact us before if you plan to come A list of all Pharo Event of the year an be found here: https://association.pharo.org/events <https://association.pharo.org/events>

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open spec window to handle exception and pause execution
by PAUL DEBRUICKER Nov. 23, 2019

Nov. 23, 2019

Hi - I have a subclass of ComposablePresenter (lets call it MyPresenter) that seems to work how I want. When doing some processing I'd like to open MyPresenter when an exception occurs and pass it the exception e.g. [ [self testCondition] whileTrue:[ self doSomeStuff] ] on: MyNotification do:[:ex | self openMyPresenterWith: ex] But that just results in lots of MyPresenter windows opening while the execution of the #whileTrue: loop runs its course. How do I pause the loop so I can use the MyPresenter window to modify and fix the condition that raised the MyNotification? The MyPresenter window just edits the contents of a couple Dictionaries so isn't too tricky but it isn't really as easy to do in a debugger as it is clicking a radio button and a "do it" button. Thanks

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Re: [Pharo-users] Glorp + P3 + SQLite
by Pavel Krivanek Nov. 21, 2019

Nov. 21, 2019

Hi Todd, we want to do some more testing before merging it into the upstream repository. -- Pavel Ät 21. 11. 2019 v 14:34 odesÃlatel Todd Blanchard via Pharo-users < pharo-users(a)lists.pharo.org> napsal: > Hi Pavel, > > I've just gotten around to figuring out BaslineOf and packages. I see > this work is in a branch on your own repository. > > Do you plan to do a pull request back to the original repository? I feel > like we have database code all over the place and no clear "official" > versions. > > Stll trying to figure out what is current and what is obsolete (Garage?) > > On Oct 19, 2019, at 5:18 AM, Pavel Krivanek <pavel.krivanek(a)gmail.com> > wrote: > > Btw. there exists an updated version of Glorp: > github://pavel-krivanek/glorp:8.3.1-23-baseline > But the compatibility of it with SQLite was never tested > > -- Pavel > > so 19. 10. 2019 v 10:27 odesÃlatel Todd Blanchard via Pharo-users < > pharo-users(a)lists.pharo.org> napsal: > >> I loaded GLORP+P3 without issue. >> >> Trying to load SQLite3 - it also wants to load GLORP which complains of >> conflict. >> >> For P3 I used: >> >> Metacello new >> baseline: 'P3'; >> repository: 'github://svenvc/P3'; >> load: 'glorp'. >> >> >> >> For SQLite: >> >> Metacello new >> repository: 'github://PierceNg/glorp-sqlite3:pharo7'; >> baseline: 'GlorpSQLite'; >> load. >> >> >> but this fails with a conflict. I suspect the conflict is it wants to >> load in glorp again. >> >> I would also like to have mysql driver at some point. >> >> Any tips for getting these to play nice together would be great. >> > >

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Re: [Pharo-users] Glorp + P3 + SQLite
by Pavel Krivanek Nov. 21, 2019

Nov. 21, 2019

Btw. there exists an updated version of Glorp: github://pavel-krivanek/glorp:8.3.1-23-baseline But the compatibility of it with SQLite was never tested -- Pavel so 19. 10. 2019 v 10:27 odesÃlatel Todd Blanchard via Pharo-users < pharo-users(a)lists.pharo.org> napsal: > I loaded GLORP+P3 without issue. > > Trying to load SQLite3 - it also wants to load GLORP which complains of > conflict. > > For P3 I used: > > Metacello new > baseline: 'P3'; > repository: 'github://svenvc/P3'; > load: 'glorp'. > > > > For SQLite: > > Metacello new > repository: 'github://PierceNg/glorp-sqlite3:pharo7'; > baseline: 'GlorpSQLite'; > load. > > > but this fails with a conflict. I suspect the conflict is it wants to > load in glorp again. > > I would also like to have mysql driver at some point. > > Any tips for getting these to play nice together would be great. >

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Pharo Techtalk Nov 21
by Marcus Denker Nov. 19, 2019

Nov. 19, 2019

Hi, Next techtalk will be *this* week (Nov 21): Topic: Discussion around Contributing to Pharo8 The idea is to discuss on Discord and may do some examples liveâ¦ Calendar entry: https://association.pharo.org/event-3419546 (sorry for the late announceâ¦ )

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