⏲️ ⚡️ That feeling when your timer returns the wrong time & new 🌩️ lightning round!

This show is sponsored by you, and it could be co hosted by you. Stick around till after the news to hear about how you could join us as a possible co host. This is Cup of Go for July 12, 2024. Keep up to date with the important happenings in the Go community in about 50 minutes per week. I'm Jonathan Hall.

And I'm Shaquille O'Neal. I'm Shay Nehmad

Man. You're so tall, Shaquille.

No. I'm actually I think I most like him because of his, sharp business acumen.

Yeah. Yeah.

Yeah. How has your Friday been so far?

I'm on my second cup of coffee. It's almost empty. So 3 is coming up soon.

Hey, but the drawing on it is still nice.

The drawing on it is still cute and and brew brewstery.

So we have a bit of a different episode. Usually, we talk a lot about, like, proposals and things that are going on. There's one honorable mention of of proposal I would like to talk about which is my proposal, of course.

Which hasn't been closed.

It hasn't been closed yet. But as you may know, go, 1 to 3, is in freeze. So there's no proposal meetings for a while. While you're waiting, it's a good time to, instead of writing proposals, write some papers for call for papers. We wanted to, mention 3 conferences.

Yeah.

Not GUI in the sense that all the core is, you know, GUI and vulnerable because it's a spaghetti code. Mhmm. But GUI, like user interfaces. Since, we've talked with, Andy, I've I've tried a find a few times and it's fun.

I I have a project in mind I intend to use it for. So I I hope to to learn that it's fun as well.

How about you, tell everybody about it by handing in your call for paper? It's, you have until August 16. And if you're in Germany in September, FineCons are gonna be there. I don't know if it's FineCon, maybe just FineCon. And there's also, GopherCon Singapore 2024. The date is not closed yet. On, paper call, it says November 1st. On their side, it says, end of October. But you know how we are programmers with dates. Maybe they should set a timer.

Foreshadowing. That's called foreshadowing.

I have to admit, again, like, gopher logo on their side, top tier. It's like a whale, a salmon gopher with a white hair carrying a bunch of other colorful gophers on its back. Rene French, you're outdoing yourself. So they're currently soliciting talk proposals until August, until the middle of August as well. If you are in Singapore towards the end of, October, you should probably hand in something.

Yeah. Let's do it.

What's going on there?

You already mentioned there's no, no proposals for

a while.

There have been holidays, July 4 or last, couple weeks ago, whatever, a few different things. But nothing is in Italy. What? Sorry?

Is aren't some of the go team in in Britain?

Probably. We kind of scattered around, but their HQ, I think, is in, is in, the US.

Yeah. That makes sense.

So, you know, half your team's gone, it's hard to have a meeting.

Or it's easier. Depends on Or easier. Depends on your personality type, I guess.

The rebels are gone. Now we could have a real meeting.

Oh, jolly good, fellas. Alright. Let's rename color to Calure all over the world.

So, anyway, on the on the topic of the 123 freeze, the release notes are looking pretty good. I don't I'm sure they're not finalized yet. I actually spotted a couple typos, but they're for the most part flushed out. Last week, it was just a bunch of boiler plate that said fill this in with blanks. Those blanks are mostly gone.

Yeah. So there's when you look at the blog posts and the thing we the things we mentioned, my biggest test for quality of a blog post is how fast I'm sending it in, company Slack or, like, sending it in, in some channels. This one was, like, finished reading immediate send. Uh-huh. So it's by Anton Zhyanov.

How often do you send a blog post before you finish reading it?

I really try not to do that, but Yeah.

Because then you regret it later and like, oh, crap. It was actually a bad blog post.

Yeah. But if you're like, timers are not, super ubiquitous features. Some of the people, listening might have not even heard of it. What are timers? Like, why would I use them?

So I mean, we we all know about time in Go, and sometimes you wanna do something at a future date or maybe every 10 seconds or something like that. So there's this type in the center libraries called just called the timer, and it basically triggers an event, sent to a channel after

a set delay. So a common use case for timers would be, like, I'm selecting on a channel, I want to do stuff, but I want to be able to get cancelled. Right? So I'm getting in a context as well. But I also just wanna make sure that after a time out, maybe I exit as well or even just log something and say like, hey, I've been waiting for 5 minutes and nothing happened.

So the the, the incorrect solution, which ironically is suggested by the book 100, Go Mistakes and how to avoid them, which we've talked about on the show previously.

And I I recommend all the time to people.

Yeah. It's a great book. It is a great book. But even great books sometimes make mistakes. Right? Or or give a suboptimal solution. So the solution presented in that book is to reset the same timer rather than reusing rather than creating a new timer for each of these 100 instances, you can, reuse the same timer. However, this is not the correct way to use the the reset method on on a timer as the blog post illuminates.

Yeah. Because reset does reset the timer, but if the timer already sends something on the channel, you're not gonna get what you expect. My thought is, oh, I reset the timer, so now the channel's empty. But in reality, when you call reset and you listen to the channel, you might get a previous, like, trigger of the of the timer. There's a 123, fix here.

You can pick out just the bits you you need. Like, if you just wanna jump straight to the the solution, you can. But if you wanna understand the whys and the the WTS, yeah, read the whole thing. It's a fascinating read.

The it's like in school. Right? It's not just a solution. It's the it's the way. It shows your work.

It shows the work. Yeah.

Show your work. Exactly. So Anton, super cool, blog and super cool blog post. It was an immediate send in our, work Slack, and it was interesting. I it's a small enough bug that, I would be like, cool, And not just, get worried as well. It's just like, Interesting.

I do have to agree with the author that it feels like an ugly hack. And and and other comments I've read elsewhere on the interwebs that the the source could literally says it's a buffer channel of size 1, but then there's a special case in the compiler that that treats it as 0. It's a super ugly hack, but it works. So I don't know. What can you say?

So it doesn't look great, but if you read the commit message, it is super well justified. The commit message for this change is almost as long as the blog post. And it goes through, oh, way back in 2015, blah blah blah. There's a go debug flag called async timer chan, blah blah blah. And the the main thing to pick out from the commit message is after the 2, year window where, you know, Go will have like 4 versions and doesn't have that backward compatibility promise anymore, they could drop support for this flag and then add the specific, like, fix this to make it look normal instead of this kind of weird, hack.

I do. Alright. So we're gonna try something new on the show. Is ishaya sort of alluded to at the top of the program. We're gonna do a lightning round. We're gonna go through some we we have more stuff than we can cram into 15 minutes. We're already past 15 minutes, so we're gonna just quickly, we think, we hope, fingers crossed, touch on some interesting topics that we wanna cover quickly. So, like, 10, 15 seconds each is is kind of the goal. We'll see how we do.

Lightning round. So first up, Filippo, friend of the show, has opened, another window or another door for people who want to maintain open source and, you know, live from it. We interviewed him in the past, so you can find that episode. And he opened Geomis, which is a sustainable open source maintenance firm. He's joined by the, 2 associate maintainers, a title I love.

time to try. Next up, a new project called Open Hugo. I love it because, we have so many Hugos now. We have Hugo and we have Hugo. We've had both we've had the the author of Hugo with a t on recently on the show. Open Hugo, though, is, a library to talk to your Philips Hue smart lights in Go. It's auto generated using open API cogen, which we've had the author of that on our show too. So this just has so many ties into our show. And, I have smart lights. Do you have smart lights?

No. I'm not like, what we talked about. I'm not really a smart guy, so that wouldn't fit.

Well, you could be smart or you could be nice. So, you

know, there's, it's, nice to be important, but it's more important to be nice. In any case, if you want to control your Philips smart lights from a go script, now you can

do so. And that's h u e go, not h o g o or h u g o or whatever. So many ways to spell Hugo. I love that there's so many projects with the same pronunciation and all these gopods. Oh, we

need to find another one.

We need to find another one. We're gonna rename the show also to Hugo.

Another cool open source project by one of our beautiful Patreon supporters. Thank you, Fredrik Averpil. We appreciate your support. And we appreciate your new sort of plugin for Neovim. Do you use Neovim?

I I'm one of those guys who has to look up how to exit Vim every time I accidentally find myself in that trap.

So I had a a rough history with Neovim. Last startup, we really tried to make it work and work on the setup and whatever. We wrote a lot of Go and eventually I caved and just used the Versus Code with the Vim motions. And I've been like, I don't wanna mess around with dot files since then. But if it's that time of year and you're like, okay, I'm clearing out my dot files and I really wanna do the neovim thing now.

Next up in the lightning round, we have a new library. Actually, is it new? Yeah. New ish, called GuiU, g I u. It's a graphical user interface, framework for Go, with bindings to the I'm GUI project, which is the c plus plus GUI library.

I think it it's a good candidate if you wanna go to fine con but you don't know what to talk about. This could be a good, conversation crutch. Right? Wait. But how is fine compared to GIU? And everybody's, like, has their opinion. Finally, on the lightning round, Ergo chat, which is an IRC server, also known as Oregano. It's an IRC server. If you're a time traveler, you're here from the eighties. First of all, I'm sorry.

Shai, what you really need is an IRC bot that lets you control your Philips Hue lights from IRC.

That's, and, you know, a GUI app on your phone written in fine to to do all. There you go. There you go. Goify all the things.

I think that wraps it up for the show.

Yeah. Let's move on to our ad break.

Yeah. Let's move on.

Alright. We're after the lightning round. Everybody can relax. So first up, we want to take a break at the end of August. So we want you to come cohost, August 23rd and August 30th. If you want to, be a Capo Go host and and tell people about the news and and share your opinion, etcetera etcetera, just talk to us on Slack. How might you do that? This could be your intro into podcasting. Yeah? How might you reach out?

to making it sustainable. Less unsustainable.

Yeah. A lot more sustainable. If you wanna support in other ways, you can buy some swag and also share the show. We don't pay to advertise. All people who are here are because someone told them about the show or they found it.

A big shout out to Christian Van Kietzel. I think I said that right. And Jamie Tanna, who actually had on the show as a a guest as well.

And was even helping out at Orca this week.

Oh, wow.

He came he came to talk with my team. Like, we work in similar things. I do, develop productivity. He does developer productivity. So he came and talked to us. Super cool. Thanks, Jamie. And thanks, Christian. Even if you didn't come to talk, with my team at work. Yep.

So I think the big question on everybody's mind right now, Shai, is are we gonna open an IRC channel using Ergo?

Oof. Actually, that could be I was like, oh, that's a good joke. But actually, that could be cool. We might. We might. You know what? I'm adding it to the list of meta tasks we have, which includes the proposal we opened. Right? So so I'm actually putting it there. IRC, using Ergo. I'll try it.

Alright. Well, maybe we'll see you on IRC later on.

See you on IRC. Bye, everybody.