<FromGitter>
<bararchy> Hi @veelenga , can we move https://github.com/bararchy/bluetooth to the Crystal community repo? it seems @elorest wishes to work with it and even is ok with paying for it to be maintained, but I have no time.
<FromGitter>
<bew> @proyb6 iirc there's an issue open with performance check (in addition to specs) in mind!
<FromGitter>
<bararchy> @vladfaust when do you think the `jobs` section wil be finished ?
<FromGitter>
<vladfaust> This week has a 90% chance
<FromGitter>
<bararchy> cool! :)
<FromGitter>
<vladfaust> Yup
<FromGitter>
<Qwerp-Derp> ehh, i personally like the purplish colour
<FromGitter>
<Qwerp-Derp> crystal-lang-community's logo is purple isn't it? so are the docs
<FromGitter>
<vladfaust> crystal-lang-community is a lesser set than Crystal itself. I guess they took the color from the GitHub's :) And I suppose API docs are to change because black is the *official* brand color
<FromGitter>
<Qwerp-Derp> ehh personally don't like the black colour, but i mean if everyone else likes it i can't really do much about it
<FromGitter>
<asterite> @roblally_twitter it seems you are using llvm 3.8.1 for some reason (maybe the bin/crystal wrapper has something to do), and that version is unsupported and that's why you get the assertion failed
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<jokke>
is there a way of bubbling up exceptions raised from a fiber?
<jokke>
like in ruby there's Thread.abort_on_exception=true
<jokke>
or is this a manual thing of creating a channel and passing it over it
<FromGitter>
<straight-shoota> #6468 proposes to improve this in stdlib
<jokke>
thanks :)
<jokke>
yeah
<jokke>
it'd be great
<jokke>
and not hard to implement
<jokke>
something like spawn(bubble_exceptions: true)
<jokke>
or however that should be called
<FromGitter>
<straight-shoota> well, it needs a place where exceptions should bubble up. A concurrency context is a great way to do this and also offers more control for structuring concurrency.
<FromGitter>
<bararchy> `blue_cr` uses dbus, while `bluetooth` is a pure c-binding
<FromGitter>
<bararchy> @j8r The whole project is `pre-alpha`, much needs to be changed, I allowed access via getter to socket and dev_id in case it would maybe needed to `read` operations
<FromGitter>
<j8r> yeah, but this is symbols, not variable - this works too?
<FromGitter>
<j8r> btw nice low level job 😮 👍
<FromGitter>
<bararchy> @j8r yeha it works, and it looks nicer ;)
<FromGitter>
<j8r> Ruby habits, yup?
<FromGitter>
<j8r> what's strange is you don't have to anotate, but that's weird because we don't know the type
<FromGitter>
<j8r> Except maybe they must be strings...
<FromGitter>
<j8r> nvm they are numbers
<FromGitter>
<bararchy> Yeha, it's coming from Ruby hehehe
<FromGitter>
<j8r> @bararchy what's the best between both BT projects?
<FromGitter>
<bararchy> The more mature one is `blue_cr`, but it has the anoying dbus need, I would prefer working on bluetooth as it need nothing other then `bluez` installed.
<FromGitter>
<bararchy> as in, if your system don't have dbus you can't use `blue_cr`
<FromGitter>
<bararchy> @j8r Do you want to try and help with it ?
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<FromGitter>
<j8r> so the deal is linux only vs having to install bluez?
<FromGitter>
<bararchy> pretty much yeha
<FromGitter>
<bararchy> btw, not "linux only", there are more then some dist that don't have dbus at all
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<FromGitter>
<bararchy> so it's "some linux"
<FromGitter>
<j8r> there are linuxes that don't have dbus?!
<FromGitter>
<j8r> Maybe android, even android I think it has DBus
<FromGitter>
<bararchy> I think any who don't have systemd installed
<FromGitter>
<bararchy> @j8r Yeha I saw my error, it seems DBUS is much more common then I thought
<FromGitter>
<bararchy> btw it seems that BlueZ is Linux only
<FromGitter>
<bararchy> which means `bluetooth` bindings are also Linux only
<FromGitter>
<straight-shoota> Isn't Dbus just a middle man between the application and BlueZ?
<FromGitter>
<j8r> @bararchy ...I'm now confused 😅
<FromGitter>
<straight-shoota> So if you don't have bluez, dbus won't help you either. Or you need a different bluetooth stack that uses dbus.
<FromGitter>
<bararchy> I hope that DBUS has some kind of 'generic Bluetooth interface' but if not then I guess you will need to do some `if mac` and then choose the stack via dbus ?
<FromGitter>
<j8r> there are two projects about bluetooth done by @bararchy , and now, I don't know which one to start 😄
<FromGitter>
<bararchy> Hahahaha
<FromGitter>
<bararchy> I'll tell you what @j8r , do you like parsing XML
<FromGitter>
<bararchy> ?
<FromGitter>
<bararchy> BTW, the reason I started `bluetooth` was for embedded minimal Linux devices , and I think @elorest needs the c level API
<FromGitter>
<bararchy> But we should ask him
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<FromGitter>
<j8r> Me, parsing XML? I prefer to parse INI - lol
<FromGitter>
<bararchy> Exactly, DBUS is basically XML parsing job ;)
<jokke>
vladfaust: i see you've been busy :D
<jokke>
vladfaust: did you include my fix for the error classes in atom-web?
<jokke>
or is it fixed in some other way?
<FromGitter>
<vladfaust> @jokke, nope, I've extracted params into external shard and gave the developer a nessecerity to handle the errors by himself
<jokke>
ok that's fine
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<jokke>
so there's no Action::Params?
<FromGitter>
<j8r> @bararchy sounds like a vocation for you to parse XML @bararchy , doesn't it?
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<FromGitter>
<bararchy> Oh god no! I hate XML my life is perfect with JSON and if I really want to go "rad" I'll do TOML too
<FromGitter>
<ljuti> Hey, guys. Found Crystal this past weekend and had an absolute blast learning it. Just wanted to thank everyone who have contributed to the language and all the shards. :)
<FromGitter>
<bararchy> @ljuti happy to hear another dev using Crystal !
<jokke>
vladfaust: params is broken
<FromGitter>
<fridgerator> @ljuti 👍
<jokke>
vladfaust: including Atom::Action into an action without a params block raises
<FromGitter>
<bararchy> It seems you also play around with ML right?
<FromGitter>
<bararchy> I saw you worked on a neural network lib
<jokke>
(it calls Params.mapping({}))
<jokke>
which obviously doesn't compile
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<jokke>
i'm a bit frustrated tbh. you could've just kept prism as a repo until atom is bullet proof
<jokke>
now i'm forced to update and have to deal with regression
<FromGitter>
<ljuti> @bararchy Yeah, although it's been awhile since I last worked on it. Should get back to it eventually.
<FromGitter>
<bararchy> @ljuti come help us around with SHAInet then ;) Neural Network in Crystal
<jokke>
barachy: nice! :D
<FromGitter>
<ljuti> @bararchy Interesting, I've got to take a look at that
<FromGitter>
<jwoertink> could this maybe be from a stale connection in the pool?
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<FromGitter>
<jwoertink> oh... we're not doing any pooling
<FromGitter>
<jwoertink> lol
<FromGitter>
<jwoertink> wow
<FromGitter>
<jwoertink> how have we made it this far without a connection pool?
<FromGitter>
<jwoertink> so it's probably just that single connection that got hit too much
<FromGitter>
<bararchy> @j8r good idea! TBH the worst perf hit is the single-threadness of the lang, in the end its mostly math. But moving to structs will provide a much larger network size I guess
<FromGitter>
<j8r> If you create lots of objects, this will help.
<FromGitter>
<bararchy> We do, I'm sure its gonna help! @j8r wanna help out? ;)
<FromGitter>
<j8r> @bararchy Yep
<FromGitter>
<j8r> The docs also needs to be clearer to tell when using structs vs classes
<FromGitter>
<bararchy> BTW @drujensen has done some amazing work with SHAInet on heart conditions analysis, diabetes research and other cool things
<FromGitter>
<bararchy> Anyway @j8r as always , having you help out is a really pleasure !
<FromGitter>
<asterite> the error means you are using an IO that is closed
<FromGitter>
<jwoertink> interesting
<FromGitter>
<jwoertink> Turned out we weren't using a pool at all. So somehow our single DB connection closed, and everything tanked
<FromGitter>
<jwoertink> or at least that's my guess.. I don't really know how to confirm that, but hopefully this deploy fixes it lol 😂
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<FromGitter>
<vladfaust> @jokke, it requires crystal master
<jokke>
great..
<FromGitter>
<vladfaust> You still can use tags
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<FromGitter>
<drujensen> @bararchy Thanks for the shoutout! SHAInet is one of the more interesting crystal projects I have been able to play with. I couldn’t get a high enough accuracy using it against Kaggle competitions, but it was a lot of fun trying. I would love to win one of those competitions using crystal instead of python. Just dreaming though. I don’t have the DS skills necessary. ;-)
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<Heaven31415>
Hi
<Heaven31415>
Is there a limit on how big a Crystal program can be?
<FromGitter>
<bew> Don't think so..
<FromGitter>
<bew> Maybe if you do more than ~2billion symbols (Int32::MAX) ^^
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<FromGitter>
<bew> Or some other number maxing (max number of method/objects/...)
<FromGitter>
<bew> But for the size of the binary, the limit is your disk
<FromGitter>
<j8r> You can easily bloat your binary by adding lot of text inside 😉
<FromGitter>
<straight-shoota> Size of program is not necessarily the size of the compiled binary.
<FromGitter>
<j8r> This exacly the problem in my Tail library, /dev/urandom doesn't return
<FromGitter>
<j8r> But, what's the point of tailing /dev/urandom?
<FromGitter>
<fridgerator> Hey all, i'm wearing crystal shirt to a Kubernetes conference at Google tomorrow. I hope I dont get beat up 😟
<FromGitter>
<j8r> Haha the only risky tshirt it "Oracle <3 Java" or anything mentioning Oracle at a Google Android conference x)
<FromGitter>
<fridgerator> Yeah that's way worse
<FromGitter>
<j8r> They will be jealous @fridgerator , the Crystal logo is way more stylish than the Go one!
<FromGitter>
<j8r> IMO Kubernetes is kind of cool, kind of overengineered, like AWS. Using both, there are X network layers, routes...
<FromGitter>
<fridgerator> Yeah it's a lot
<FromGitter>
<fridgerator> I mostly just use Rancher
<FromGitter>
<bew> TIL rancher ;) is there a crystal binding/sth for Kubernetes? (so that you can talk about something)
<FromGitter>
<j8r> In fact, there isn't much to talk about languages in containers – this is completely agnostic
<FromGitter>
<j8r> Maybe older Java versions, that had troubles to run inside
<FromGitter>
<j8r> And now they have fixed this.
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<FromGitter>
<dscottboggs_gitlab> so I have an object, Tag, which I want to insert into a JSON structure as if it were a string. What should the Tag object's `#to_json` look like?
<FromGitter>
<jwoertink> Anyone ever seen this error? `BUG: already had enclosing call`
<FromGitter>
<jwoertink> I got this error when trying to compile. I commented out the line it was complaining on, and it still does the same error, just moves where it's being called
<FromGitter>
<jwoertink> but I don't know what's actually causing this or what the error means