<repo>
Nicolab: unfortunately there's no way to do something like `type Result(T, E) = Ok(T) | Err(E)`
<repo>
this would make it perfect
<repo>
since you could type restrict the method return values
<repo>
i an easy way
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<Nicolab>
@repo Indeed, but you have avoided slipping into a too heavy over-pattern (class, hash, etc. in the heap). For such a lib which will be executed exessively I find your choice wise.
<Nicolab>
Hi @sorcus Thanks, I have looked, assert is good but I'm looking for something simpler and lighter.
<Nicolab>
micro check only
<sorcus>
@Nicolab, oh, sorry. I don't know another validaton library :-(
<Nicolab>
No soucy, thank you :)
<FromGitter>
<j8r> repo: I don't see the use case of `try!`
<FromGitter>
<j8r> But for on this it's just `Success(T) | Error`
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<FromGitter>
<j8r> same for the `ResultMethods` module, don't see the need
<FromGitter>
<j8r> a yielding method would be useful too
<FromGitter>
<j8r> except that, nice, starred!
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<repo>
j8r: try! works like rust's ? operator. So it's basically a guard clause. If the expression passed to the macro evaluates to an Err object it will be propagated (because it's returned immediately), if it's an Ok object it will be unwrapped, so that you can use it further along the way
<repo>
yeah the ResultMethods module is a bit overkill
<repo>
but it should ensure that both Err and Ok have the same methods
<repo>
you could think of it as something like this: foo = method_might_raise
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<repo>
if method_might_raise raises, the following code won't be executed and because of a missing rescue the exception will be propagated one stack level higher.
<repo>
to mimick this type of behavior try! (or in rust the ? operator) exists
<FromGitter>
<j8r> please put the benchmark elsewhere than `src/` :)
<FromGitter>
<j8r> because it's not really library code
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<repo>
j8r: i actually had it in bench/benchmark.cr before but it wouldn't correctly rebuild it (with shards build --release) for some reason.
<repo>
but i'll move it back
<repo>
j8r: ah i remember this error.cr shard. we both had the issue of not being able to unwind the stack with musllibc
<FromGitter>
<Blacksmoke16> @Nicolab have you seen the ad hoc validation part of assert?
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<repo>
j8r: interesting! i added a trace option and this seems to be the thing that eats up a lot of performance: https://p.jokke.space/CmpNoJ/
<repo>
even though i already optimized a lot by using a tuple instead of an array
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<FromGitter>
<Nicolab> @Blacksmoke16 Yes, `Assert.not_blank("foo")` etc It's very well for unit tests or other. But here, I only want to make small checks (true or false), do not execute classes and a lot of logic for each check, there can be ten validations per request (and thousands of requests by second).
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<FromGitter>
<Blacksmoke16> Then probably best to write something yous
<FromGitter>
<Blacksmoke16> Yourself*
<FromGitter>
<Blacksmoke16> A module with some class methods would do it
<FromGitter>
<Blacksmoke16> Fwiw all the ad hoc things do is new up a class and run the validation of that class, so isn't really that much going on other than newing up the validation class
<FromGitter>
<Blacksmoke16> Need to do some benchmarking but going to refactor it a bit to use structs which are probably better suited for this
<repo>
how can i get the line from which a macro was called (inside the macro)?
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<FromGitter>
<girng> wow, so when I do `crystal src/MasterServer.cr` on the vps, the ram goes up by 450MB permanently and stays there. If I build my app and then just do `./MasterServer`, ram usages goes up like a couple MB
<FromGitter>
<girng> why is that?
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<FromGitter>
<Daniel-Worrall> Does anyone have any examples of distributing crystal apps? I've just deployed an app with proper linking to the config folders and a systemd startup file, but I did it all by hand and hard-coded `/etc/appname/config.yml`
<FromGitter>
<Daniel-Worrall> It's probably holding onto the crystal compiler in ram girng
<FromGitter>
<Daniel-Worrall> are you building regular or release too?
<FromGitter>
<girng> release, yeah i think your right
<FromGitter>
<girng> i was just kinda surprised at first. i was like how the hell is my app using that much memory lol
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<FromGitter>
<Blacksmoke16> the former has to compile the binary then run it, the latter just runs it
<FromGitter>
<Blacksmoke16> @Daniel-Worrall i mainly use Docker, swarm (or ideally k8s) is also an option if you have multiple things going
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<FromGitter>
<Blacksmoke16> easy to scale/move around etc
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<FromGitter>
<randiaz95> Guys... I know you guys are backend experts, but do you know any html/css libraries for small carousels like slick js?
<FromGitter>
<Blacksmoke16> im sure a quick google search would turn up plenty
<FromGitter>
<Blacksmoke16> bootstrap prob has something
<FromGitter>
<tenebrousedge> bootstrap, also I think there are jquery plugins
<FromGitter>
<randiaz95> oo really jquery?!
<FromGitter>
<randiaz95> I like jquery
<FromGitter>
<randiaz95> I googled bootstrap carousels and its only for the super large ones.
<FromGitter>
<randiaz95> with the buttons below.
<FromGitter>
<tenebrousedge> slick is jquery
<FromGitter>
<randiaz95> I am going to use waltzer js
<FromGitter>
<randiaz95> slick is not safari safe lol
<FromGitter>
<tenebrousedge> k
<FromGitter>
<randiaz95> well at least not 100 % safe
<FromGitter>
<randiaz95> requirements are safari or nothing lol.
<FromGitter>
<randiaz95> DANG IPHONE USERS!!!!
<FromGitter>
<tenebrousedge> huh
<FromGitter>
<Daniel-Worrall> I was distributing with docker and it ended up swallowing up 600MB up with a start-up of 200MB. Systemd reduces that to 2MB
<FromGitter>
<Daniel-Worrall> Maybe k8s would help, but this works.
<FromGitter>
<randiaz95> there is a built in zipping library to compress your entire ubuntu file system
<FromGitter>
<tenebrousedge> docker is about reproducible builds
<FromGitter>
<randiaz95> Yep, Docker is when you are big
<FromGitter>
<randiaz95> or if you want to be human capital ready, you can learn when your small
<FromGitter>
<Blacksmoke16> makes deployments easy too, just pull down new image and restart
<FromGitter>
<Blacksmoke16> or if you need to setup another server just install docker and done
<FromGitter>
<Daniel-Worrall> With a 250mb host, I needed the ram
<FromGitter>
<Blacksmoke16> ah fair
<FromGitter>
<randiaz95> You mean ram! not hard disk?
<FromGitter>
<randiaz95> 1) o
<FromGitter>
<Daniel-Worrall> Ram host yes
<FromGitter>
<randiaz95> Jeez
<FromGitter>
<Daniel-Worrall> Cheap though
<FromGitter>
<randiaz95> lol each of my apps are still on 2-3 gig ram droplets