crystal-lang/crystal

The Crystal programming language | http://crystal-lang.org | Fund Crystal's development: http://is.gd/X7PRtI | Docs: http://crystal-lang.org/docs/ | API: http://crystal-lang.org/api/

Claudio Holanda

@kazzkiq

Is Process.run a blocking method?

If I run a cURL command via Proccess.run, and it takes 10 seconds to return, is my application going to hang for 10 seconds?

From IRC (bridge bot)

@FromIRC

<oprypin> @kazzkiq, it's a convenience method that wraps Process.new and Process.wait which blocks the current fiber until the process ends

<oprypin> also why run a curl command......

laurent bernabé

@loloof64

Hello everyone :smiley: Is there already a binding for WxWidgets for Crystal ? My Google search did not show me suitable result.

Rubi

@codenoid

unfortunately @loloof64 http://crystalshards.xyz/?filter=WxWidgets

Faustino Aguilar

@faustinoaq

huh what does the delegate macro do exactly? Not seen that before

Groogy, check :point_right: http://devdocs.io/crystal/api/0.23.0/object#delegate(*methods,toobject)-macro

Hello everyone :smiley: Is there already a binding for WxWidgets for Crystal ?

unfortunately

But you can try Qt bindings :wink:

https://github.com/Papierkorb/qt5.cr

Claudio Holanda

@kazzkiq

<oprypin> also why run a curl command......

Because that's the only way to make Mailgun work with Crystal at the moment

Cris Ward

@crisward

@kazzkiq I have a mailgun client, just not got around to open sourcing it yet. It's actually mailgun and sendgrid. I use HTTP::Client. I want to add a wrapper around SMTP with it to, so it's a common api for however you want to send mail.

laurent bernabé

@loloof64

Thanks @codenoid Maybe I'll have to do myself bindings for the functionnalities I need

Or use another GUI framework like libui : http://crystalshards.xyz/?filter=libui

From IRC (bridge bot)

@FromIRC

<oprypin> @kazzkiq, are you sure about that? crystal's http client should (at least strive to) provide all the same functionality. if it doesnt match that expectation, ask for help / report it

laurent bernabé

@loloof64

Thank you also @faustinoaq Maybe Qt binding will be the solution.

Faustino Aguilar

@faustinoaq

Yeah Qt bindings are awesome! :sparkles:

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@FromIRC

<Papierkorb> <⁠3

Faustino Aguilar

@faustinoaq

:+1:

A = [] of Nil
{% A << 0 %}
{% p A[0] %} # => 0

How is this possible ?

https://carc.in/#/r/2sv3

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@FromIRC

<Papierkorb> lul ^

Elias Perez

@eliasjpr

https://carc.in/#/r/2sv6

:confused:

From IRC (bridge bot)

@FromIRC

<oprypin> yeah not the first time i see this

Elias Perez

@eliasjpr

Maybe is not a bug maybe is a feature :D

maybe this is why https://carc.in/#/r/2sv9

Cris Ward

@crisward

Just open sourced this - https://github.com/crisward/mailer

Ary Borenszweig

@asterite

When you don't use a constant it's not typed, so a constant can be used as a placeholder in macros

That is, when you don't use that constant at runtime

Also known has hack #123 (just kidding)

But Elixir does something similar, only with attributes (which only exist at compile-time, I think)

Kingsley Lewis

@vonKingsley

is there a way to tell crystal to always use some link-flags, so i don't forget to pass --link-flags -I/usr/local/opt/openssl/include --link-flags -L/usr/local/opt/openssl/lib each time

José Rodrigues

@joselfr

@vonKingsley I don't know if you can configure crystal for that but you can do a shell alias. Or better a makefile.

Kingsley Lewis

@vonKingsley

thanks @jose-rodrigues i think ill add it to a shell alias

Claudio Holanda

@kazzkiq

@crisward Awesome! Will take a look at it tonight. Thanks!

Ary Borenszweig

@asterite

You can use @[Link] on LibC

Cris Ward

@crisward

@kazzkiq raise an issue if you have any problems. Took me a while to originally get the apis working ok, but pretty sure everything is there now, except the stuff mentioned in the Readme.

From IRC (bridge bot)

@FromIRC

<oprypin> @vonKingsley, have u tried {LD_,}LIBRARY_PATH=/usr/local/opt/openssl/lib crystal run blah

<oprypin> in which case, export {LD_,}LIBRARY_PATH=/usr/local/opt/openssl/lib in your shell and proceed normally

Kingsley Lewis

@vonKingsley

@oprypin I originally just tried LIBRARY_PATH=/usr/local/opt/openssl/lib crystal run which didn't work for me

From IRC (bridge bot)

@FromIRC

<oprypin> LIBRARY_PATH is for build LD_LIBRARY_PATH is for execution. so have u tried both?

Kingsley Lewis

@vonKingsley

@oprypin just tried it and it still didn't work for me, still links to openssl 0.9.8

From IRC (bridge bot)

@FromIRC

<oprypin> @vonKingsley, how are you checking that? it does not link to any particular openssl

<oprypin> you must use LD_LIBRARY_PATH when running the resulting binary

<oprypin> that's when the override happens

Kingsley Lewis

@vonKingsley

i was checking two ways 1 with otool -L on the binary. and the other was running a wireshark and checking if it was using tls 1.2, trying to troublshoot an tls issue

From IRC (bridge bot)

@FromIRC

<oprypin> ok but did u start those with LD_LIBRARY_PATH

Kingsley Lewis

@vonKingsley

Yeah I tried LD_LIBRARY_PATH=/usr/local/opt/openssl/lib crystal run tls_test.cr and it was still using, TLS V1. no worries on it. i got to run but i'll figure something out.

Faustino Aguilar

@faustinoaq

I know you should use LIBRARY_PATH at compile time and LD_LIBRARY_PATH at run time. so:

$ LIBRARY_PATH=/my/lib/path crystal build myprogram.cr
$ LD_LIBRARY_PATH=/my/lib/path ./myprogram

<oprypin> LIBRARY_PATH is for build LD_LIBRARY_PATH is for execution. so have u tried both?

I just see it :sweat_smile:

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