February 2023 - ruby-talk - ml.ruby-lang.org

[ruby-talk:444143] Re: RubyConf 2022 Talk Video for Building Native GUI Apps in Ruby
by Andy Maleh 19 Nov '23

19 Nov '23

Andy Nutter-Upham, I just realized I didn't answer this exact question by you in full details (I read the original message on the phone while being quite busy with something a couple of weeks ago, and I somehow missed some of intricacies of your question): "If I missed the documentation and someone knows where it is, I'd love to read it. I think though that since this is a wrapper library there is instead reference to the underlying documentation (whose method names are a bit different, and whose arguments are a bit different) and I find that translation very challenging; especially since glimmer-dsl-libui is not yet complete, so your run into ineffective keywords if you rely on the underlying glimmer docs." Glimmer DSL for LibUI actually does have full documentation for the Ruby API: https://github.com/AndyObtiva/glimmer-dsl-libui#supported-keywords Someone asked me to add the documentation early on when the project was new, and I added it to that person's satisfaction. I hope it's helpful to you too. By the way, I also do mention under the "Original API" section that you could use the LibUI Go documentation as a reference: https://pkg.go.dev/github.com/andlabs/ui But, the most complete reference is the actual C headers: https://github.com/andlabs/libui/blob/master/ui.h And, the C headers are exposed as low-level FFI functions in Ruby as per the Original API (but it's not recommended that you use these method directly of course): https://github.com/AndyObtiva/glimmer-dsl-libui#original-api To give you an example of how the mapping from the C API to Ruby happens, suppose we have this C function: uiWindowSetTitle('My Application') The word before the "Set" or "Get" operation is the control object (e.g. window), and the word after it is the attribute (e.g. title). So, the equivalent of that in the Glimmer GUI DSL: window { title 'My Application' } Basically, we are declaring a window control with one nested attribute of title having the value 'My Application' The C API is procedural and imperative whereas the Glimmer GUI DSL is object-oriented and declarative, better mapping to the way we think of concepts visually while looking at a screen given that you could nest controls (widgets) within each other. If you need further help, do not hesitate to ask further questions at the Glimmer Gitter chat: https://app.gitter.im/#/room/#AndyObtiva_glimmer:gitter.im You shouldn't really get bogged down unless you are missing foundational grounding in software engineering concepts relating to desktop development in general, like MVC (Model View Controller). I've done GUI development professionally in older technologies like Java Swing in the past, and by comparison, Glimmer lets me leapfrog past productivity by 4x at least, sometimes 10x or even more (and it's that much faster in productivity than web development too, so it's great for building quick local apps or tools that don't need the web as it's much simpler, demanding a tiny fraction of web code only). But, it does assume you know MVC (Model View Controller) very well, and it benefits from also knowing MVP (Model View Presenter). Once you get the main ideas behind Glimmer, everything clicks, and things like exact APIs or detailed documentation wouldn't matter much anymore because the way you think with MVC/MVP is you start with the View layer from a GUI mockup to support a specific user workflow, and you either use native controls (like text and button, by looking them up in examples or the docs mentioned above) or you invent your own custom controls (both options are available in Glimmer DSL for LibUI). Of course, the native controls are only as complete as what is implemented by the underlying LibUI library. I know the authors of it are working on adding many new features, like a Tree control, Table sorting listeners, and some other missing features. They will all be added to Glimmer DSL for LibUI in due time when they get released in C LibUI. But, that shouldn't stop someone from learning the library and using whatever is available in it for now, or at least mastering the current features until more features are added in the future (especially given that you could always temporarily polyfill missing features by building your own custom controls if really needed). Cheers, Andy Maleh On Tue, Feb 14, 2023 at 9:27 PM grigoris charam <xargrigoris(a)gmail.com> wrote: > Stop reply all > > On Feb 15, 2023, at 03:05, Andy Maleh via ruby-talk < > ruby-talk(a)ml.ruby-lang.org> wrote: > > > The Glimmer Gitter Chat: > > https://app.gitter.im/#/room/#AndyObtiva_glimmer:gitter.im > > If you create any Glimmer related projects, libraries, or tools, you could > alert of us of them in the Gitter Chat. > > And, you can open issues or pull requests on any of the Glimmer projects > if needed: > <glimmer.png> > AndyObtiva/glimmer: DSL Framework consisting of a DSL Engine and a > Data-Binding Library used in Glimmer DSL for SWT (JRuby Desktop Development > GUI Framework), Glimmer DSL for Opal (Pure Ruby Web GUI), Glimmer DSL for > LibUI (Prerequisite-Free Ruby Desktop Development GUI Library), Glimmer DSL > for Tk (Ruby Tk Desktop Development GUI Library), Glimmer DSL for GTK > (Ruby-GNOME Desktop Development GUI Library), Glimmer DSL for XML (& HTML), > and Glimmer DSL for CSS <https://github.com/AndyObtiva/glimmer> > github.com <https://github.com/AndyObtiva/glimmer> > <https://github.com/AndyObtiva/glimmer> > > > Andy Maleh > > > LinkedIn: https://www.linkedin.com/in/andymaleh > <https://www.linkedin.com/in/andymaleh> > Blog: https://andymaleh.blogspot.com > GitHub: https://github.com/AndyObtiva > Twitter: https://www.twitter.com/AndyObtiva > > On Feb 14, 2023, at 7:51 PM, Fellipe Fingoli via ruby-talk < > ruby-talk(a)ml.ruby-lang.org> wrote: > > > really good content! I want to help to develop this ecosystem. Does > anybody know where I can reach the community? > > Em ter., 7 de fev. de 2023 às 18:29, Andy Maleh via ruby-talk < > ruby-talk(a)ml.ruby-lang.org> escreveu: > >> My RubyConf 2022 talk video on "Building Native GUI Apps in Ruby" using >> the Fukuoka Award Winning Glimmer DSL for LibUI has just been released! >> >> https://youtu.be/1Bh4CnJqHyY >> >> Andy Maleh >> >> LinkedIn: https://www.linkedin.com/in/andymaleh >> <https://www.linkedin.com/in/andymaleh> >> Blog: http://andymaleh.blogspot.com >> GitHub: http://www.github.com/AndyObtiva >> Twitter: @AndyObtiva <https://twitter.com/AndyObtiva> >> >> ______________________________________________ >> ruby-talk mailing list -- ruby-talk(a)ml.ruby-lang.org >> To unsubscribe send an email to ruby-talk-leave(a)ml.ruby-lang.org >> ruby-talk info -- >> https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-talk.ml.ruby-lang.or… > > > > -- > Fellipe Fingoli > ______________________________________________ > ruby-talk mailing list -- ruby-talk(a)ml.ruby-lang.org > To unsubscribe send an email to ruby-talk-leave(a)ml.ruby-lang.org > ruby-talk info -- > https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-talk.ml.ruby-lang.or… > > ______________________________________________ > ruby-talk mailing list -- ruby-talk(a)ml.ruby-lang.org > To unsubscribe send an email to ruby-talk-leave(a)ml.ruby-lang.org > ruby-talk info -- > https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-talk.ml.ruby-lang.or… > > -- Andy Maleh LinkedIn: https://www.linkedin.com/in/andymaleh <https://www.linkedin.com/in/andymaleh> Blog: http://andymaleh.blogspot.com GitHub: http://www.github.com/AndyObtiva Twitter: @AndyObtiva <https://twitter.com/AndyObtiva>

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[ruby-talk:444157] Fixing Ruby gems installation part 2
by Felipe Contreras 01 Mar '23

01 Mar '23

Hi, This is the second part of my attempt at fixing gem installation, it's necessary because it's *not yet fixed*. https://felipec.wordpress.com/2023/02/27/fixing-ruby-gems-installation-part… The maintainers of rubygems continue to ignore my solution, despite being the only one that actually works. The patch is really simple: https://github.com/felipec/rubygems/commit/68c0127885bc80761eb948963f9d5733… And I created an Arch Linux package with the patch and proper overrides: https://aur.archlinux.org/packages/rubygems-user It works perfectly. It has been *twelve years* since the first issue regarding this was reported, hopefully it will get fixed before the end of this decade (could be fixed now if the maintainers simply applied my patch). Cheers. -- Felipe Contreras

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[ruby-talk:444139] [ANN] Learning by Reversing: Native Gems, Parts 1 and 2
by Mohit Sindhwani 01 Mar '23

01 Mar '23

Hi Everyone, For a long time, I wanted to do a series of posts called "Learning by Reversing" where I look at something that exists and is useful, and try to work back and explain it. For this, my first series is about Native Gems in Ruby. So, I've picked a simple native Ruby gem called fast-polylines and am looking at all the code, how to develop it, how to test it, how it loads, how it works, etc. with the aim of helping people understand Native Ruby gems better. The first 2 parts are now online on my blog: * Part 1 - This covers the background to the gem we explore Link: https://notepad.onghu.com/2023/learning-by-reversing-s1-e1-native-gems/ * Part 2 - This goes into the details of how ruby loads the native gem and extension (and includes a nice sequence diagram of how all the bits happen together) Link: https://notepad.onghu.com/2023/learning-by-reversing-s1-e2-native-gems/ Future posts are planned to go into details like: * The interface between Ruby and C * The Makefile * A Makefile that also works on Windows * Running the specs * Running the performance benchmark * Enhancements: - Providing an executable - A gem that also works on JRuby - Making the gem ractor friendly - Patching an existing gem rather than a new module Comments on the posts or the plans welcome. Best regards, Mohit.

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[ruby-talk:444156] Re: How to load ruby-openssl headers in a C extension
by Tiago Cardoso 27 Feb '23

27 Feb '23

Hi, thx for the suggestion. Unfortunately, it doesn't work with a bundled gem, at least in a mac: gems get distributed in .bundle packages, so: ```ruby spec = Gem::Specification.find_by_name("openssl") source_dir = File.join(spec.full_gem_path) Dir.glob(source_dir + "/*/**") => [] # ruby-install installs bundled gem extensions under /Users/tiagocardoso/src/ruby-3.2.1/.ext/x86_64-darwin21/ ``` I believe that Frank may be correct here, in that "openssl" does not declare its header files as external in extconf.rb . Thx, Tiago Ruby users (Avocadostore) <support(a)avocadostore.zendesk.com> escreveu no dia segunda, 27/02/2023 à(s) 21:24: > ##- Bitte geben Sie Ihre Antwort über dieser Zeile ein. -## > > Sie sind in dieser Supportanfrage (1955167) auf CC gesetzt. Antworten Sie > auf diese E-Mail, um Kommentare zur Anfrage hinzuzufügen. > > *Ruby users* > > 27. Feb. 2023, 22:24 MEZ > > Hi, > > In <CAD489_xmJUsZkPzzbhJPXi3naKn18fpt+Dj1_uVYf945p9FeZA(a)mail.gmail.com> > "[ruby-talk:444148] How to load ruby-openssl headers in a C extension" on > Mon, 27 Feb 2023 11:27:52 +0000, > Tiago Cardoso via ruby-talk <ruby-talk(a)ml.ruby-lang.org> wrote: > > > I'm writing a C extension which interfaces with ruby-openssl objects, and > > the openssl API. In the process, I'm needing access to some functions > which > > ruby-openssl declares in the header file: > > > https://github.com/ruby/openssl/blob/ea0a112a0c6a0498629e778af7991c9b4e3495… > > (example: ossl_raise). However, it's not clear to me how should I declare > > the #include in order to access it, for a header file coming from stdlib. > > Seems that ruby itself correctly places its header files (examples: > ruby.h, > > or ruby/io.h), but I don't see the openssl gem ones. > > You can use Gem::Specification for it in your extconf.rb: > > spec = Gem::Specification.find_by_name("openssl") > source_dir = File.join(spec.full_gem_path, "ext", "openssl") > $INCFLAGS += " -I#{source_dir}" > > See also: > > https://github.com/groonga/mysql2-replication/blob/main/ext/mysql2-replicat… > > Thanks, > -- > kou > ______________________________________________ > ruby-talk mailing list -- ruby-talk(a)ml.ruby-lang.org > To unsubscribe send an email to ruby-talk-leave(a)ml.ruby-lang.org > ruby-talk info -- > https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-talk.ml.ruby-lang.or… > > *Ruby users* > > 27. Feb. 2023, 21:28 MEZ > > On 2/27/23, Tiago Cardoso via ruby-talk <ruby-talk(a)ml.ruby-lang.org> > wrote: > > Hi Mohit, > > ... I want to access the headers of openssl "the ruby library", or more > specifically its C extension headers. > > So, you mean, e.g., these: > https://github.com/ruby/openssl/blob/master/ext/openssl/ > https://github.com/ruby/openssl/blob/master/ext/openssl/ossl.h > > It doesn't look like the extension installs those headers: > https://github.com/ruby/openssl/blob/master/ext/openssl/extconf.rb > > E.g., ruby/digest installs digest.h > https://github.com/ruby/digest/blob/master/ext/digest/extconf.rb > > $INSTALLFILES = { > "digest.h" => "$(HDRDIR)" > } if $extmk > ______________________________________________ > ruby-talk mailing list -- ruby-talk(a)ml.ruby-lang.org > To unsubscribe send an email to ruby-talk-leave(a)ml.ruby-lang.org > ruby-talk info -- > https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-talk.ml.ruby-lang.or… > > *Ruby users* > > 27. Feb. 2023, 20:34 MEZ > > Hi Mohit, > > Thx for the reply. "#include <openssl/ossl.h>" is to access headers from > openssl "the library", whereas I want to access the headers of openssl "the > ruby library", or more specifically its C extension headers. > > Both "#include <ruby/ruby.h>" and "#include <sys/time.h>" do not apply to > my use-case: the first is a header file from the ruby distribution, not an > stdlib, whereas the latter is a (non-ruby related) system library. > > Best regards, > Tiago > > Mohit Sindhwani <mo_mail(a)onghu.com> escreveu no dia segunda, 27/02/2023 > à(s) 16:35: > > Hi Tiago, > > On 2023-2-27 7:27 pm, Tiago Cardoso via ruby-talk wrote: > > I'm writing a C extension which interfaces with ruby-openssl objects, and > the openssl API. In the process, I'm needing access to some functions which > ruby-openssl declares in the header file: > https://github.com/ruby/openssl/blob/ea0a112a0c6a0498629e778af7991c9b4e3495… > (example: ossl_raise). However, it's not clear to me how should I declare > the #include in order to access it, for a header file coming from stdlib. > Seems that ruby itself correctly places its header files (examples: ruby.h, > or ruby/io.h), but I don't see the openssl gem ones. > > The beginning of my C file looks like: > > ```C > #include <ruby.h> > #include <openssl/evp.h> > > #include <pathto/openssl/ossl.h> // how to do this? > ``` > > What is the error that you are getting? I would have that it should just > work with "#include <openssl/ossl.h>" on the idea that it's relative to the > system include directory but I am still exploring how C native extensions > work but I thought it should have worked since I see other gems (e.g., > grpc) include other items like: > > #include <ruby/ruby.h> > #include <sys/time.h> > > Best regards, > Mohit. > > *Ruby users* > > 27. Feb. 2023, 12:28 MEZ > > Hi, > > I'm writing a C extension which interfaces with ruby-openssl objects, and > the openssl API. In the process, I'm needing access to some functions which > ruby-openssl declares in the header file: > https://github.com/ruby/openssl/blob/ea0a112a0c6a0498629e778af7991c9b4e3495… > (example: ossl_raise). However, it's not clear to me how should I declare > the #include in order to access it, for a header file coming from stdlib. > Seems that ruby itself correctly places its header files (examples: ruby.h, > or ruby/io.h), but I don't see the openssl gem ones. > > The beginning of my C file looks like: > > ```C > #include <ruby.h> > #include <openssl/evp.h> > > #include <pathto/openssl/ossl.h> // how to do this? > ``` > > Thx, > Tiago > Avocado Store GmbH > Cremon 32, 20457 Hamburg > avocadostore.de <https://www.avocadostore.de> - Eco Fashion & Green > Lifestyle > [image: Instagram] <https://www.instagram.com/avocadostore.de> > [image: Facebook] <https://de-de.facebook.com/avocadostore> > [image: Pinterest] <https://pinterest.com/avocadostore> > [image: TikTok] <https://www.tiktok.com/@avocadostore.de> > [image: LinkedIn] <https://www.linkedin.com/company/avocadostore> > > Eine E-Mail verursacht durchschnittlich 4 g CO2, mit Anhang bis zu 50 g. > Jährlich bedeutet das 135 kg CO2-Emissionen pro Kopf. Verringere deine > Emissionen, indem du nur notwendige E-Mails verschickst und regelmäßig > E-Mails löschst. > Registergericht: Amtsgericht Hamburg, HRB 113545 > Umsatzsteuer-Identifikationsnummer: DE270706065 > Geschäftsführung: Mimi Sewalski & Till Junkermann > [V03OR4-EQ4Z8] >

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[ruby-talk:444148] How to load ruby-openssl headers in a C extension
by Tiago Cardoso 27 Feb '23

27 Feb '23

Hi, I'm writing a C extension which interfaces with ruby-openssl objects, and the openssl API. In the process, I'm needing access to some functions which ruby-openssl declares in the header file: https://github.com/ruby/openssl/blob/ea0a112a0c6a0498629e778af7991c9b4e3495… (example: ossl_raise). However, it's not clear to me how should I declare the #include in order to access it, for a header file coming from stdlib. Seems that ruby itself correctly places its header files (examples: ruby.h, or ruby/io.h), but I don't see the openssl gem ones. The beginning of my C file looks like: ```C #include <ruby.h> #include <openssl/evp.h> #include <pathto/openssl/ossl.h> // how to do this? ``` Thx, Tiago

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[ruby-talk:444149] [ANN] Learning by Reversing: Native Gems, Part 3
by Mohit Sindhwani 27 Feb '23

27 Feb '23

Hi Everyone, I started on a series to learn by reversing a native Ruby gem. Part 3 is now published! The step continues the examination by seeing how we package and ensure that the native extension is actually built during installation. Also, why are there 2 Makefiles? Part 3 - How do we ensure that we have everything and that it actually gets built at installation? Link: https://notepad.onghu.com/2023/learning-by-reversing-s1-e3-native-gems/ The first 2 parts are also online on my blog: * Part 1 - This covers the background to the gem we explore Link: https://notepad.onghu.com/2023/learning-by-reversing-s1-e1-native-gems/ * Part 2 - This goes into the details of how ruby loads the native gem and extension (and includes a nice sequence diagram of how all the bits happen together) Link: https://notepad.onghu.com/2023/learning-by-reversing-s1-e2-native-gems/ Future posts are planned to go into details like: * The interface between Ruby and C * The Development Makefile and a Makefile that also works on Windows * Running the specs and the performance benchmark * Enhancements: - Providing an executable - A gem that also works on JRuby - Making the gem ractor friendly - Patching an existing gem rather than a new module Comments on the posts or the plans welcome. I'm @onghu on Twitter or @onghu@ruby.social on Mastodon if you're on either. Best regards, Mohit.

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[ruby-talk:444142] Good URI.escape alternatives
by Gui Heurich 27 Feb '23

27 Feb '23

Hi list, I'm working on replacing URI.escape/unescape before moving a project to Ruby 3.x. I was wondering what most of you have used as alernatives and how they have worked for you. AFAIK, these are the options: CGI.escape URI.encode_www_form URI.encode_www_form_component Also, if you have any links to interesting posts, articles, videos about this, do send them through. Thanks! Guilherme anthropologist programmer code-anth.xyz Sent with Proton Mail secure email.

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[ruby-talk:444146] [ANN] raindrops 0.20.1 - real-time stats for preforking Rack servers
by Eric Wong 25 Feb '23

25 Feb '23

raindrops is a real-time stats toolkit to show statistics for Rack HTTP servers. It is designed for preforking servers such as unicorn, but should support any Rack HTTP server on platforms supporting POSIX shared memory. It may also be used as a generic scoreboard for sharing atomic counters across multiple processes. * https://yhbt.net/raindrops/ * public mail box (no subscribers, no HTML mail): raindrops-public(a)yhbt.net * mail archives: https://yhbt.net/raindrops-public/ http://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/raind… imaps://yhbt.net/inbox.comp.lang.ruby.raindrops.0 nntp://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.raindrops imap://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.raindrops.0 (.onion URLs require Tor) * git clone https://yhbt.net/raindrops.git * torsocks git clone http://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/raind… * https://yhbt.net/raindrops/NEWS.atom.xml Changes: raindrops 0.20.1 Stats for SO_REUSEPORT sockets are now handled properly. Thanks to Dale Hamel for the patches. Dale Hamel (2): Fix queue stats for sockets with SO_REUSEPORT Fix off by one error in test -- -_-

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[ruby-talk:444137] [ANN] guess_os gem
by iloveruby 16 Feb '23

16 Feb '23

Hi, everybody! I'm developing a gem called "guess_os" to try guess local or remote (using SSH conn) OS. Could you try "guess_os" on your system an give me feedback, please! Installation: gem install guess_os Running command: guess_os Responds with ip? [ENTER] to guess your localhost. Thanks! :-) Enviado con [Proton Mail](https://proton.me/) correo electrónico seguro.

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[ruby-talk:444127] RubyConf 2022 Talk Video for Building Native GUI Apps in Ruby
by Andy Maleh 15 Feb '23

15 Feb '23

My RubyConf 2022 talk video on "Building Native GUI Apps in Ruby" using the Fukuoka Award Winning Glimmer DSL for LibUI has just been released! https://youtu.be/1Bh4CnJqHyY Andy Maleh LinkedIn: https://www.linkedin.com/in/andymaleh <https://www.linkedin.com/in/andymaleh> Blog: http://andymaleh.blogspot.com GitHub: http://www.github.com/AndyObtiva Twitter: @AndyObtiva <https://twitter.com/AndyObtiva>

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