development

[warm sleet]

list can be empty

or contain 1

or multiple

[rare dagger]

What will cmd do with those when it needs only 1?

[warm sleet]

it doesnt need anything

it just gets a list of child processes

and dumps them out

[rare dagger]

i wanna keep it as .bat file

[warm sleet]

rip

[rare dagger]

ok.. just . i will give up with it. it took me 3+ hours to get to that point

[warm sleet]

@rare dagger I can just make it return a single one :P

[rare dagger]

Errr idk man now i kinda feel confused

Cuz i wanted to keep it as 1 file only

so idk if it is worth

[warm sleet]

@rare dagger lol help me here

how do you set variables in windows bat?

[rare dagger]

I'm not linux user

oh

err

[warm sleet]

E:\FindProcess\FindProcess\bin\Debug>SET foo = FindProcess 4

E:\FindProcess\FindProcess\bin\Debug>

this works

but, idk how to get it out now

[rare dagger]

Explain me what do you want to do?

[warm sleet]

batch is wtf.

[rare dagger]

omg if i missline once then all text goes wrong

[rare dagger]

This one may help

https://www.tutorialspoint.com/batch_script/batch_script_variables.htm#:~:text=Batch Script - Variables 1 Command Line Arguments.,Variables. ... 5 Working with Environment Variables.

[warm sleet]

@rare dagger dont work https://i.imgur.com/hUPcosP.png

[rare dagger]

1sec

give me more than 1sec

i dunno even

hm

lemme test

[warm sleet]

cystal@DESKTOP-E49ULUK MINGW64 /e/FindProcess/FindProcess/bin/Debug$ variable=$(./FindProcess.exe 4)

crystal@DESKTOP-E49ULUK MINGW64 /e/FindProcess/FindProcess/bin/Debug$ echo $variable
144

^ bash under windows

[rare dagger]

got it

[warm sleet]

@rare dagger yeah it needs to run. not interpret as string

xD

idk how you do that on bat

bash is just $()

[rare dagger]

er

i dont even know bash

I told you i dont use linux

[warm sleet]

ok so

its SET /P variable=[command]

[rare dagger]

Err

[warm sleet]

still doesnt work

piece of garbage

[rare dagger]

yea... kinda weird. i think imma end it here

[empty sentinel]

"FindProcess" is a valid CMD command?

[rare dagger]

yea

or

idk

nope

[empty sentinel]

Not on my 2 Windows 10 machines it isn't

[rare dagger]

Can u help me

#tech-support

[empty sentinel]

set user=%username% works perfectly.

[warm sleet]

@empty sentinel it doesn't

@empty sentinelthat was from another example lol

I just whipped up a quick C# program that queries the management store directly

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;

namespace FindProcess {
class Program {
    public static IEnumerable<Process> GetChildProcesses(Process process) {
        var children = new List<Process>();
        var mos = new ManagementObjectSearcher(
            $"Select * From Win32_Process Where ParentProcessID={process.Id}");

        foreach (var mo in mos.Get()) {
            children.Add(Process.GetProcessById(Convert.ToInt32(mo["ProcessID"])));
        }

        return children;
    }

    static void Main(string[] args) {
        var children = GetChildProcesses(Process.GetProcessById(int.Parse(args[0])));
        foreach (var child in children) {
            Console.WriteLine(child.Id);
        }
    }
}
}

[fading phoenix]

Hello, is anyone anygood with databases and SQL?

if so what is wrong with this sql

SELECT StockName, Count() FROM Stock JOIN SaleStock ON SaleStock.StockID = Stock.StockID GROUP BY StockName ORDER BY count() DESC

I was being stupid my bad I'm new to this sorry.

[tight charm]

You're not putting the column name inside the count's parentheses. That's whats causing the syntax error.

[gusty ermine]

what is 250 Mbps unmetered* bandwidth

[midnight wind]

not metered

[gusty ermine]

is it a good thing or bad thing since im looking at OVH Vps for Web Hosting

[midnight wind]

good since they don't charge your for data

although I heard OVH vps's kinda suck

[gusty ermine]

im not looking for an expensive one tbh

my minecraft network is small

so do you think it would work fine for me?

[warm sleet]

@gusty ermine make sure you don't get the ones that have vCores

if you hog more than 35% of the CPU they will start sending angry emails

[placid flare]

Uhh so in the latest "Dev Ring" insider update this just got updated... Iam vary confused.

[mystic coral]

Design this amazing Login/Sign-up form with CSS and JavaScript animations.
Watch the step by step tutorial on my channel.
https://youtu.be/eQgmsIy7nQ4

[nocturne galleon]

no spaces

[junior abyss]

wait wait is that titlebar by default like that

[sly vigil]

can anyone help me fix this? i have never programmed before and im trying to make a bot but keep getting this error

[limpid reef]

Uh... did you mean to type "client" or "clinet" in the highlighted parts? 👀

[sly vigil]

that was probably one problem, now it goes and says this

[next light]

@sly vigil i think (not certain) that js wants semi colon when executing tasks

Oh god just noticed

You started commenting out a bunch of code but you never finished the comment

Thats the missing token

You need */ at the end of the code

[sly vigil]

Oh thx so much @next light

[midnight wind]

js is weird, semi-colons aren't mandatory, but imo it's good practice to avoid weird behaviors

[next light]

yeah it was a while since i worked with js and now im doing lua and C# one of them not needing semi colon and the other demanding one

[warm sleet]

@next light lua is the funny one

it indexes by 1, and has only 1 datatype

[next light]

damit

lua is annoying sometime

but been working with it for 3 years now through roblox

[warm sleet]

everything is a table

once you understand how lua scopes its metatables, its quite easy to use

[next light]

what?

oh hella naw

i dont wanna deal with metatables

they are so damn confusing

[warm sleet]

you can use them to create instances, and do object oriented programming

as well as functional programming

[next light]

yeah doesnt mean they are the only way to go and because they are really confusing, i rather stay away from them

[warm sleet]

like I said, lua only knows one actual datatype, and that's the scoping context of the metatables

[next light]

tf?

ok i think we are talking about different types of lua here

cause ive been working on different games using lua now for 3 years

pretty damn good at it

[warm sleet]

yeah even your regular scope is a meta table

xD

its just hidden

variables in the local scope are just records on that table

with the variable name as the key

[next light]

yeah i cant really talk that much about metatables, dont know how to use them, how they work, what they do and stuff

[midnight wind]

lua is lua

[next light]

different versions of lua

[warm sleet]

no its not different version of lua

its how the language works.

[next light]

bruh

there is a different version of lua

[midnight wind]

apparently you can do js or other languages to compile to lua for roblox

[next light]

it got its own kinda name even

using luau now

[midnight wind]

ah

https://roblox.github.io/luau/

[warm sleet]

if you create a variable in lua, you can also access it by doing __index['variablename']

that's what i mean, that the entire scope, is just a metatable

[next light]

as said, metatables are really confusing

[warm sleet]

and when you call a function, it pushes that metatable onto the stack

and adds the parameters.

this isnt "some version" of lua

this is how the language functions internally.

[next light]

yeah im not gonna learn how they work here and now, if i ever do learn metatables, it will be during the day when i do some research

[warm sleet]

just saying, if you know how to use metatables yourself, it allows you write some powerful constructs

and makes writing more complicated systems easier.

[next light]

im good

i got no need of metatables rn, maybe not ever

i do C# at school and probably gonna use C# when i start working and pretty sure C# doesnt have metatables

[warm sleet]

;-;

yea, because C# has a stack-heap memory model.

completely different from the way that lua handles this.

[next light]

nothing that i can speak of as i got no clue what that is

anyway, imma head to the store, cya

[warm sleet]

;-;

[mystic umbra]

Lua and C# are completely different things. They aren't even comparable.

C# is much much much more powerful.

[ivory bear]

Lua is powerful in other use cases, like embedding in other language, or as user addon in games or third party application since you don't even need a full fledged IDE just to write Lua and it's almost always sandboxed by other system

like you will definitely need IDE to write C#, you will forget all those long syntax and the required formatting

C# be like

using System;

namespace HelloWorld
{
  class Program
  {
    static void Main(string[] args)
    {
      Console.WriteLine("Hello World!");    
    }
  }
}

Lua be like

print("Hello World")

[midnight wind]

that comparison is kinda bad, all the C# stuff is boilerplate, as in any object oriented language

C# is meant for big complicated projects

Lua is a scripting language

yeah

learning C without an IDE is a good experience

for starters

just plain gcc

[nocturne galleon]

does anyone have experience with the linkedin API? im a bit confused as how the authentication works (apperantly with oAuth. But im a serverside noob)

[hollow basalt]

drop your code here

[nocturne galleon]

have none. Dont know where to start its for a MagicMirror2 Module @hollow basalt

[hollow basalt]

so uhh, start now

[nocturne galleon]

GET https://api.linkedin.com/v2/networkSizes/urn:li:organization:1234567?edgeType=CompanyFollowedByMember
Gives me an error saying i have not authenticated? how would i go ahead to do that?

I have allready gotten an clientID and secret but dont know where to put those

[midnight wind]

https://esther-liao.medium.com/how-to-get-a-linkedin-access-token-a53f9b62f0ce

[warm sleet]

that sounded so familair, couldnt put my fingers on it

[last lance]

`import pygame
import time

#Color Settings
background = (46, 52, 64)
button = (100, 100, 255)

width = 800
height = 1000

fps = 60
win = pygame.display.set_mode((width, height))

win.fill(background)
pygame.display.flip()

def main():
state = 0 #0 = Picture, 1 = Main, 3 = Settings
landscape1 = pygame.image.load('landscape.png').convert()
landscape1.set_alpha(255)
win.blit(landscape1, (0,0))
pygame.display.flip()
inanim = False
clock = pygame.time.Clock()
run = True
while run:
clock.tick(fps)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_w:
if state == 0:
if inanim == False:
inanim = True
landscape1.set_alpha(0)
pygame.display.flip()
print("send help")
time.sleep(1)
inanim = False
state = 1

pygame.quit()

if name == "main":
main()`

My janky code, when clicking w it prints out send help, but the oppacity does not change

I have probably offended every single python coder with my bad code

[calm thicket]

Can anyone help me decide on whether to learn common lisp or a scheme language like clojure or racket?

[hollow basalt]

What's your purpose

[nocturne galleon]

i hate that random numbers are printing at the end

can't seem to find the problem, just added switch cases to have the function accept different parameters based on the user's input

https://pastebin.com/HiVR4u10

[calm thicket]

things like writing basic CLI programs such like a cyclic redundancy check program

[dim lava]

use haskell and regret your decisions

[calm thicket]

i was also thinking about haskell but im not sure if i would be able to adapt to it

[rancid nimbus]

At the end of the case statements you have a printf could that be why it is printing an additional int?

Also that function does not appear to return an int. Maybe I am just missing it.

[storm plume]

why am i unable to install btrfs-tools from the ubuntu ppa?

[rancid nimbus]

Ububtu ppa?

[storm plume]

yeah

sorry i meant using apt

heres what it says

[rancid nimbus]

Nevermind I remember what they are. Did you run sudo apt upgrade are you on an Ubuntu version supported by the ppa?

[storm plume]

im on 20.04 rn

5.8 kernel

i googled it but cant find any answers to that

[rancid nimbus]

Some papa's only support an older version of ububtu for some reason.

[storm plume]

sudo apt upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.```

```bash
sudo apt install btrfs-tools
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package btrfs-tools is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'btrfs-tools' has no installation candidate```

oh

i tried apt searching but doesnt return any results either

[rancid nimbus]

Would the package name be right?

[storm plume]

yeah i searched google and it seems to be right

also gparted telling me to install it

[rancid nimbus]

https://linuxhint.com/install-and-use-btrfs-on-ubuntu-lts/

This suggests btrfs-progs then it should work.

[storm plume]

i was able to successfully install btrfs-progs (enables creation of the btrfs file system) but gparted says i cant use it until i install btrfs-tools

unable to read contents of this file system!

ok let me try a reboot

might fix some issues

[rancid nimbus]

Also, I would not rely on a ppa for a system critical component like file system.

[storm plume]

what do u recommend

also rebooted and it seems i still cant install it, but gparted's issue is gone now

[rancid nimbus]

Trying to stick to what the distro provides.

[storm plume]

okay noted!

[rancid nimbus]

If you have a core component like that and you update you might have to reinstall.

[storm plume]

oh i see

[rancid nimbus]

I have done that with graphics and it booted just fine, but the screen wouldn't do anything. The GPU drivers were installed from a ppa of some sort.

[storm plume]

ah

[rancid nimbus]

Did it work?

[storm plume]

yeah currently trying to move some files onto it

[pliant siren]

So I have a problem where I want to sort the result of f(n) where n is a large number - 2^32, maybe as high as 2^40. No problem, I'll just use an AVL tree and store the indexes in the tree. Now I want it to be fast, so I'll want to use C. And if I do it using a struct or objects you nearly quadruple your memory footprint, so I want to do this using an array. Should be no problem, that will have been written a hundred times before, there will be plenty of examples on stackexchange surely. Right?

Evidently, wrong.

[warm sleet]

@pliant siren use a long integer

those are 64 bits

[pliant siren]

yes - but that means more space in memory. Remember that 2^32 is already going to be 16GB as an array index; at 8 bytes per index it'd be 32GB

[warm sleet]

@pliant siren okay, and why in memory?

I mean, if you're indexing a large dataset like that, you sure native implementations like that are sufficient?

@pliant siren you could use a hashed array tree

with a pivot in the middle of your dataset

[pliant siren]

A HAT or any kind of HashTable is going to use vastly more memory than you ideally want to use.

Also, the intent is to generate a sorted list. A HAT won't give you that. You would still need to sort each column, and then mergesort that, which is exactly why an AVL tree is ideal - you end up with a data structure which is already sorted and ready to traverse.

As I said - I want to sort f(n) for n=0...(2^x)-1

essentially what I want to do is calculate f(x), then in the avl tree store x. Every time you do a comparison function, you would have to re-compute f(x) for the current value and every node as you traverse the tree. This is because f(x) is a 256 byte value.

[rancid nimbus]

Does anyone know how to get a systemd timer to wake a system from the shutdown state?

[hollow basalt]

[rancid nimbus]

sudo sh -c "echo 0 > /sys/class/rtc/rtc0/wakealarm" 
sudo sh -c "echo `date '+%s' -d '+ 10 minutes'` > /sys/class/rtc/rtc0/wakealarm"
sudo shutdown -h now

The first command clears the rtc, then the second sets the timeout 10 minutes in the future, then it shutdown. After 10 min from setting the timeout the computer wakes up.

I found this: Not officially supported by ACPI, but it usually works when looking at rtcwake manual page.

You could just use the sudo rtcwake -m off -s 600 to do the same as the previous shell code.

[hollow basalt]

preference

I use a combination of git cli and 3rd party gui client

[nocturne galleon]

hmm fair enough

ok, what about, which do you think is better for a beginner

like I'm just looking for something that lets me push my commits to my github repo from linux, and maybe swap branches

everything else regarding merging and issue tracking and whatnot I'll just do on the site

[warm sleet]

@nocturne galleon git cli is the way to go

I use my IDE for actually comitting code

but being proficient with the CLI, means you can use git in any situation

most noobs that I see use Sourcetree, but sourcetree completely breaks down on larger repositories

if you try load the linux kernel git repo with Sourcetree, it explodes

source tree also doesnt know how to rebase properly

and if there's a mismatch with the repository, it just crashes

[hollow basalt]

sourcetree seems enough

but i never used it

[hollow basalt]

i learned git before these GUI got popular

CLi is still the best choice

[nocturne galleon]

Learn Git CLI. All the GUIs I've used are limited and the GitHub CLI will tie you to GitHub, so you won't know what to do if there's a project on GitLab or other alternative Git services

[ivory bear]

ouch ... so it wasn't actual bug in the software
https://twitter.com/ocornut/status/1383002610790174721

Omar (@ocornut)

• User submits a mysterious clipboard issue
• @PathogenDavid patiently digs into system locales, encoding conversions, line-endings etc., fails to repro but somehow finds a fix involving line-endings format.
• Someones shows up with an answer ouch

Retweets

398

Likes

1402

Twitter · Apr 16, 2021, 10:21 AM

[nocturne galleon]

very well, you guys have sold me

thanks for the help

[tropic hound]

i found this https://github.com/indraai/IndraMind wtf is it? pls @ or dm.

[haughty burrow]

the first file they import in .src looks like some sort of self made/hosted AI modules

but i hate JS with a passion so im not reading a single line more

[tropic hound]

cool, thanks for the info.

[woeful shadow]

i made a website

the html files worked with my custom font

but not when i uploaded everything to my host

i even put the font on a cdn which usally helps when local files aren't being found

but no luck

[hollow basalt]

it would be helpful if you supplied code

[woeful shadow]

yes

i agree

my laptop has a different discord account since im borrowing it

[empty ingot]

@font-face { font-family: Chunk; src: url('Chunk.TTF'); }```

doesn't work

works locally opening the file in browser

but not on the web

[hollow basalt]

are you need not

[empty ingot]

yes

<h2 style="font-size: 37px; font-family: Chunk;">```

aww

ok

just using my brothers laptop lol since im not home and im fixing his website

he used to post sometimes here

ill leave

staff

plz no ban

[woeful shadow]

ight

alts gone

not sure why it doesn't work on my host

[hollow basalt]

what's your host

[woeful shadow]

sparkedhost

cheapest

$2/m

ive used them before

dk why the host would be the issue here

it's running cpanel btw

i just uploaded everything to public_html

😩

the file was named .ttf

not .TTF

i guess it's not case sensitive locally

sigh

everytime this kinda stupid thing happens

@hollow basalt dont keep searching incase you didn't see

[cyan raft]

I'd say that the git cli is better since it has better integration with ides and vim(via fugitive)

[dim lava]

I somehow wrote this without being tired or drunk

i think i'm just bad

(^ is the XOR operator here, and A XOR A some number A will always equal zero lol)

[pliant siren]

hah

[woeful shadow]

html buttons dont work

why

[midnight wind]

wdym by don't work

what do you want them to do

[woeful shadow]

@midnight wind when i click i dont get redirected

nothing happens

the click animation does go tho

[woeful shadow]

nvm i got it

[cyan raft]

I did foobar level 1

🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉 🎉

IK the first one was pretty easy but still

kinda proud

[stone willow]

hiya. im not sure if this is really the best place for it but looks similar...? i have a school coding project due tomorrow and im terrible at coding...all i need help with is a username and password system for 2 users to start a dice rolling game so itll probably be very simple for most of you. if anyone has 5/10 minutes to try and help me please dm me so i can send you screenshots of it thanks

[warm sleet]

did you not pay attention during class? :P

[zealous dove]

Hi All, long time listener, first time caller 🙂 Decided to join in the see what the fuss is all about. My topic of discussion today is Raspberry Pi Development and e-ink screens and bank savings tracker (I'm from the UK - so £'s and bank accounts and not checking accounts LOL).

I have been working on many things over the years. But my most recent is a python3 app that will look at your savings goal for a specific UK bank and display the progress on an attached eInk screen.

[hollow basalt]

🔥

[warm sleet]

@hollow basalt idk what else to day

but sounding the alarm 1 day before assignment is due..

[hollow basalt]

it's not like I'm disagreeing

[warm sleet]

sounds like poor planning

[stone willow]

my teachers a little bit useless lmao

[warm sleet]

yeah but that is besides the point

if your assignment is due tomorrow, and you dont have a thing to show for... that's poor planning on your part

dropping the problem in a public channel, hoping for someone else to do it is... not really honorable

[stone willow]

i said ive done most of it? ive done 350 lines of code that i ahevnt been tought and really struggled with and asked for advice on how to do one small thing that would probably be about 10 lines worth? i dont see whats so bad about that?

also this was meant to be due at the end of may but last week when i wasnt in school due to illness my teacher told everyone it was due sooner and its only because one of my friends asked how i was finding it that i found out about the deadline

[dim lava]

it's better to just ask that specific question about those 10 lines than to try to have people pity help you over your poor planning

[stone willow]

well 24/31 of the students parents in my class have complained about her, weve only had 2 months of teaching from her in entire school year and have had no lessons about coding at all in school, so maybe its just bad circumstances but i didnt know how to do the task well. i had it operartional and it did 8/9 objectives well, however i didnt know how to complete the final stage, and even when i did find it online i wasnt sure how to integrate it into my program. all i did was ask for some guidance but sorry?

[stone willow]

i dont think its poor planning if its out of my control? and i wasnt trying to get pity i was trying to get advice?

[dim lava]

no it absolutely is. you're trying to get someone to dedicate their time in DMs in which they are obligated to help, by asking a very generic question that can involve any one of hudnreds of techniques or technologies or languages or structures, and then saying you need it done urgently or else you'll fail this assignment

[stone willow]

you were suggesting that i was being dumb and relying on others to do the work for me, when in reality ive tried and havent been able to so i was just proving that shes not the most helpful

ive done it now but ty

[dim lava]

Then why ask for someone to dedicate their time in DMs in which they are obligated to answer every question that you still haven't asked or clarified, rather than simply phrasing your supposedly simple question so that anyone with a decent understanding can answer it in passing

[stone willow]

well it took 4 hours to learn a tiny bit rather than 10 minutes of someone telling me what i needed to learn but yeah i guess. cheers

[stone willow]

i outlined the problem and context well enough that i thought most decent coders could at least think of something thatd help of the top of their head. as it happens id done the login system for user 1, so was gonna ask for advice about how do do user 2 in a similar style but yeah i suppose

[dim lava]

The issue with asking for generic DM help is that I personally consider myself a great programmer in a lot of areas, and I help people all the time and invite people to DM me with questions. However, if i do the same to you without knowing wth you're actually doing, you could be working in some popular language or framework that I don't personally know well, like Java, React, TypeScript, etc. Then since I already offered you help, I am basically just led to googling the same exact things you have to google, which basically just leads to me telling you what to put in the search bar

[dim lava]

The actual situation is rarely relevant. What's more relevant are the requirements and constraints you have. What technologies are you using? How are clients connected? What does the server look like? etc

Anyway, it seems like you've solved the issue, so good job. In the future, be as specific as possible when searching for help so that people can actually help you without having to poke your brain for all the details 🙂

[stone willow]

well yeah i guess but i didnt have all the info thatd have been helpful and this is my first time coding anything more than like 5 lines so hadnt fully considered that

[stone willow]

yeah haha. sorry and thanks lol

yeah i understood about 3 words of that sorry...

[dim lava]

This language looks suspiciously like Java but isn't lol

I rarely work on customer or end-user facing code

I mostly do embedded and hardware stuff

[midnight wind]

I hate doing frontend

I'm just a student though

[dim lava]

lately been working on various encryption stuff on FPGAs

I've even come to hate server code too

Basically any code that has to interact with user input, i'm out

All the fun is taken out of programming when you have to think of the 30 million ways a user can fuck up a text form

Then you get things like this https://twitter.com/RachelTrue/status/1365461618977476610?s=20

Rachel True (@RachelTrue)

Anyone else getting this error from Apple iCloud ? In past or now?
I’m 6 months deep freeze & looking for any help.
I rem dead coding languages like kobalt.. & this seems like an Apple coding issue — not hardware

Retweets

1659

Likes

6113

Twitter · Feb 27, 2021, 12:39 AM

Notice her last name is True

😂

[midnight wind]

Iol

reminds me of a person who changed their name to NULL

and all of a sudden they had hundreds of tickets

and fines

[dim lava]

lol i love that story

@last ingot anyways, i find embedded and hardware development far more interesting because I think the problems are hard and engaging and you don't have to deal with nearly as much fuss

[midnight wind]

embedded programming is cool

[dim lava]

I could probably find similar enjoyment in large-scale deployment stuff like distributed databases and region caching schemes and whatnot, however that just wasn't the path i took naturally so i'm a bit far removed from the skills needed for that

[midnight wind]

Things like kubernetes

[dim lava]

yeah basically

[midnight wind]

distributed storage

I"m playing with kubes rn

[dim lava]

embedded is fun because of the restricted nature of it @last ingot , you really have to think outside the box sometimes to be able to get something done

[midnight wind]

trick is, everything should be as stateless as possible

and all database and/or storage is done somewhere else

not in kubernetes

[dim lava]

Like, I was responsible at some point for improving the code that would record a bunch of stuff in the event of a total system crash

However it was way too big compared to the size of the flash space available, we have like 15MB reserved for this purpose and the total size to record was like 70MB

i ended up implementing memory compression to take it down to 3MB and sped up the process from a few minutes to 15 seconds

what was interesting was because it's a crash scenario, you can't use any sort of dynamic memory/heap, remote function calls, kernel calls, etc. So i had to basically do everything on the stack. I had to modify the compression algorithm to support some preallocated memory and inline as much as possible

[hollow basalt]

what algo did you use

[dim lava]

LZ4

there was already an implementation of it on the device so it was a clear answer there lol

and another useful property was that it can be used as a stream of data, without having to analyze the entire thing first

[rotund plover]

Someone knows C lang?

[spring pond]

yes

[hollow basalt]

maybee

[native helm]

Anyone with a working wsl2+vscode+electron+react setup that can help me get it up and running?

[nocturne galleon]

Why wsl tho?

I mean you could just use vanilla linux right?

[spring pond]

its possible they only have a windows machine and dont have real vm permissions or dont want to set one up

[tired juniper]

ok so I got a class restaurant and I got a class foods. everytime you add a food in the constructor for foods an instance of the class restaurant gets created so the food that you created under class foods can also be added to the list of foods which is in class restaurant. My question is how do I do if possible: I write a food with certain parameters in class foods and these parameters get recorded for this food in class restaurant but I call the food pizza(because I am adding pizza). Is there a way to get that name and record the food in the restaurant class but with the same name without putting the value into another variable first and then putting that variable into the restaurant. Can I directly use the food name I created for class foods in main?

example
I mean I know I can do it with input by the user console read stuff but can I do it like this directly in code by referencing?
like I write a bunch of foods and when I start the program they all automatically get recorded in the restaurant without me having to put them in manually
and r.Foods is a list
https://paste.mod.gg/ewexeyotan.cs

c#

[native helm]

Since I'd rather not use my laptop since my desktop is way more comfortable to do stuff on. Also, I'll be using this at my internship later on, and the work laptop I've got doesn't handle VMs good.

[nocturne galleon]

You could dual-boot with linux right?

[native helm]

Not allowed to... Anyhow, seems I've gotten it running by using chocolatey to install nodejs. It does however fail when trying to build... 'build' is not recognized as an internal or external command, operable program or batch file. following this: https://medium.com/@brockhoff/using-electron-with-react-the-basics-e93f9761f86f

[nocturne galleon]

Ah alr

Yea sorry, don't know much about JS

Was just curious

[native helm]

No worries. Not so familiar with react or electron but was asked to test some stuff

pretty decent with js thou xD

[warm sleet]

@native helm try npm run build

[native helm]

hmm.. Running into an issue. I'm fetching from an AWS S3 ListBucket, looping through until I've fetched all items (10.000+) but it fetches some of them multiple times. Doing something like this:

async function getAllItems() {
  var marker = "";
  var done = false;
  var items = {};
  do {
    var chunk = await fetchItems(marker);
    // looping through the items fetching the values I want
    if (undefined !== chunk["ListBucketResult"]["NextMarker"]) {
      marker = chunk["ListBucketResult"]["NextMarker"];
    }else{
      marker = ""; done = true;
    }
  } while (done === false);
}

fetchItems is an async function that uses node-fetch to get the XML, and fast-xml-parser to convert it to json.

[trim adder]

.

[royal lichen]

I'm pretty the 2 equal signs and the ! Suppose to be spaced out from each other by 1 space not put together

[tired juniper]

can I put image as a background on a whole table column(which includes three rows) and the background is one image it starts on the first row and ends on the third but is only on the second column?
I tried putting every cell of the second column in a class and then do the background for that class but then the image starts again on each cell and I want it to start once and end once not have it start again for each cell
code https://paste.mod.gg/ozerabuxux.xml

[hollow basalt]

[latent summit]

is it live data? could it be that that whole array shifts because data was inserted somewhere.

[dense marten]

Hello, I'm having some issues making a HTTP 1.1 server and I was hoping someone would be able to help me. I am trying to serve a video file to the client (firefox) so I respond with a 200 OK and start reading and sending the file, if I don't do anything this works fine and get me through the entire video. If I try to seek/scrub at all through the video firefox then closes the connection, and sends a new request with a range header, the thing is this range is always the last 29 KB or so of data from the video file. I respond with this data and then firefox never requests any more data so once the original buffer of video runs out the video freezes and won't play even if I try and scrub back to content it's already played. Any ideas?

here are the actual headers https://pastebin.com/rNSHB4qs

[dense marten]

so I played around with my code a bit and made it so it sends 2 MiB chunks at a time now and made it multithreaded where each connection gets its own thread. I think making it multithreaded fixed it since I had to restructure the code and I suspect it was having issues keeping the connection alive and was getting blocked by a waiting accept() function where now each thread doesn't have to wait for that it waits on read() instead

[abstract lichen]

hi, im making a website and the css isnt working even though the items has the same class name
html

          <ul class="App-nav">
            <li class="Nav">Home</li>
            <li class="Nav">All Products</li>
            <li class="Nav">About me</li>
            <li class="Nav">Shopping Cart</li>
          </ul>

css

.App-nav {
  margin: 0;
  padding: 0;
  list-style-type: none;
}
.Nav {
  display: inline-block;
}```

[calm venture]

game dev friend tells me GMS2 can compile her game to ubuntu if she had a distro installed; i've been planning to install an archlinux-based distro myself, so i'm wondering if i could get her a native linux version of her game

would i be able to compile it with my own copy and licence of GMS2 through manjaro, despite it ostensibly being for ubuntu?

[warm sleet]

@calm venture never seen restrictions for software on a specific distro

usually, you compile your software against your kernel headers

and then it will run just fine

ubuntu-specific just means hat you get a debian package you can install.

[nocturne galleon]

if I download a full clone of my old repository, is there a way to view the actual commits and issues if I reupload? or was that only a github thing

maybe I can view commit messages but just not issues?

[midnight wind]

Did you load the css

[midnight wind]

Commits are the whole reason git exists

So yes of course

Issues on the other hand are a specific thing github made iirc

[abstract lichen]

idk how but it works now

[nocturne galleon]

aaah ok

[native helm]

Nah, not live data, it's actually a few days old, so it's kinda solved by using the API for the more up-to-date data. Didn't know of that API at the time xD

[latent summit]

by live data i ment, was it continiuosly updated. but its good that you found the way to solve it.

[native helm]

No, it's periodically updated, so every few days it gets a batch with all updates since last time. In general it doesn't need to get updated more than maybe once a month or so.

[calm venture]

got it; thanks

[wide cradle]

is this channel for software only or is hardware stuff ok too

[midnight wind]

both

[wide cradle]

ok poggers - back in like 2 weeks

[cyan raft]

That dank momment when you abandon your project to play minecraft with da bois

[haughty mist]

what program is that?

[midnight wind]

that's github

that's the commit history

[haughty mist]

oooh

Yeah i have one of those xD

But I mostly use git

so I dont see the site too often

[midnight wind]

well github really is just a git server

with just a little on top

[haughty mist]

Yeah I set up a website's source and some game projects there, but I havent poked at the gui too much

[ionic valve]

Maybe you forgot the ./ in your link @abstract lichen

[vale pine]

Yess GitHub and GitLab are great

Team GitLab here tho lol

[nocturne galleon]

alpha beta pruning isn't helping at all. All the time is spent creating the tree. The evaluation of the tree doesn't take much time at all so the alpha beta pruning isn't making it faster at all

[tired juniper]

can you tell me a simple function or way to sort an array alphabetically?
I don't want advanced complicated algorithms just a simple method or something

c#

[limpid reef]

I don't really do much programming these days, but stackoverflow has answers to most simple questions. Whether the answers are "correct" is a whole other story. Also, do keep in mind that most teachers know people turn to sites like this for help, so don't just copy paste the code unless you can also explain how it works if asked.
https://stackoverflow.com/questions/16636554/sorting-an-array-alphabetically-in-c-sharp

[tired juniper]

yeah thanks I did it by the Linq method

[pliant siren]

I'm currently working on similar problems... but the array is of size 2^32 and the data that needs sorting is 256 bytes long 😄

Fortunately, the data is deterministic so there's some speedups you can use.

[umbral saffron]

Help

The pi boots for just a second then switches to that

[nocturne galleon]

the color screan

[umbral saffron]

The green led turns off too

[nocturne galleon]

what os are you using

[umbral saffron]

Raspbian

[nocturne galleon]

is it stuck on that screen?

[umbral saffron]

Yeah it’s still there

[nocturne galleon]

try re flashing your os, you might have corrupted your sd card

[umbral saffron]

Alright ty

[umbral saffron]

Now I need to fix this

It’s not formatted right

[spring pond]

thats probably a hdmi overscan issue

[cyan raft]

Recursively printing

pstree
``` to the terminal from python

[rancid nimbus]

You might have been able to extract the kernel files and copy them over to your PI sd card to get the PI to boot up.

Most Linux distributions keep a few older kernel so that it can boot to an older kernel if the newer one wasn't installed correctly. I have 32 kernel images on one machine.

[clear thistle]

32?!?

geez

idk whether this is better suited for #crypto-currency or here, but

has anyone built a cryptocurrency before?
i mean, fully functioning with p2p netowoking and all

(literally all the tutorials on youtube just build a blockchain and call then call it a day. usually dont even save things as files or anything either)

[umbral saffron]

Does anyone know how to make the magic mirror custom?

[torpid current]

Is there a tool to safely run TFTP flashing for routers and not be like ages old ? (I know about tftp2.exe, etc. but they are not that friendly for less technical people)
I think a more user-friendlier tool would actually get more people to be customizing their home router.
I'd be willing to write one myself if there would be no good alternatives already and I wasn't able to find one yet.

Any suggestions ?

[safe igloo]

Hey guys, I'm searching how to make a discord bot that can start a program on my computer. Is it possible ?

[midnight wind]

of course it's possible

[safe igloo]

I learned python yesterday so it's new for me, but cool ! Thanks for the info !

it's pretty simple tough

[tired juniper]

hey just a quick question can you use => as string splitter? For some reason in my task it says that the input has to be done like this

c#

[umbral saffron]

What would be a good free c# ide

[rancid nimbus]

Vim?

Emacs?

Nano?

Never mind I do not use IDE's as much as I should.

Maybe Visual Studios or Visual Studio Code.

[cyan raft]

vs code

[clear thistle]

learnt it IN A DAY?!?

[clear thistle]

vim emacs and nano arent IDEs
theyre text editors

[clear thistle]

.

[violet cipher]

Yes and no, it depends. If the bot runs off of your PC, then it is as simple as using a function most fitting your usecase from the subprocess library (E.g.: subprocess.run or subprocess.popen + subprocess.communicate to get its output)

If it ran on a server somewhere, it would be dangerous to try and execute something on your PC

[warm sleet]

@umbral saffron Visual studio community edition

https://visualstudio.microsoft.com/vs/community/

Visual Studio code is just a lightweight text editor

but if you are going to develop and debug .NET apps, you need regular VS

[umbral saffron]

Ohhhh ok

Thanks

[warm sleet]

VSC is for things like typescript

and web development

python, etc

[rancid nimbus]

Vim and emacs could likely be modified to function like a IDE.

[rotund harness]

You can 100% develop and debug .NET Core apps in Visual Studio code. It was at one point just a light weight text editor, it is a full blown IDE at this point. It doesn't have all the features of "Visual Studio" but it has what "most" people need.

[minor roost]

@warm sleet if you add the right extensions for what you need, vsc has as much, if not more functionality then vs. there are just many more extensions, and less stock functions.

[violet cipher]

I find vim enough for simple projects, but once I work on more in depth stuff where I may not, for example, remember function names and such...

[rotund harness]

Yeah VSC has evolved SO MUCH over the last few years. I am a software architect / engineer at a .NET shop. I uninstalled visual studio proper a long time ago and never looked back.

Extensions in VSC are so powerful.

[minor roost]

only problem i had with it is that debugging embedded systems can be a bit buggy or just randomly fail on start, and i think that is just a problem with my debugger's server.

[rotund harness]

Yeah - every once in a while I will run into a bug with an extension, - you tell them about the bug - and its usually fixed pretty quickly

If you find a bug wtih Visual Studio though - good luck getting that fixed 😉

[minor roost]

https://tenor.com/view/bug-programmer-life-gif-14891409

[gleaming hatch]

I've seen this one
It's a classic

[minor roost]

https://tenor.com/view/stop-apologizing-and-correct-your-error-marco-inaros-keon-alexander-the-expanse-s506-gif-19851770

they even have an extension for the ksp code mod.

[rotund harness]

Isn't azure data studio just a vsc extension?

I know it is its own download, but I thought I remember that being started as an extension and then they decided to just offer it as a standa lone - but it uses the same core code

[minor roost]

i don't know, i mainly use google's services.

[rotund harness]

Ah, its not anything related to azure - its just a light weight replacement for Sql management studio

The naming is dumb 😛

[minor roost]

?

[rotund harness]

https://docs.microsoft.com/en-us/sql/azure-data-studio/what-is-azure-data-studio?view=sql-server-ver15

It "was" an extension but they broke it out into its own full fledged app, that is basically VSC for databases, with its own extensions lol

so its built on the same platform - I wish they had more db engine support - but its pretty nice and super light weight (and cross platform)

[minor roost]

i use this when i'm on the go on a phone with termux: https://github.com/cdr/code-server

[rotund harness]

Nice, I tried using AWS code in the browser thing

it was horrible

lol

Do not recommend.

[minor roost]

still waiting on that github codespace beta thing.........

[rotund harness]

https://tenor.com/view/wait-waiting-bored-gif-10918805

[midnight wind]

I have it available?

[minor roost]

github 2077 ? anyone wanna subscribe?

been waiting for a response since.... last year probably

[midnight wind]

ah maybe because I'm a student and therefore have pro?

[minor roost]

no, but they say it's a closed beta. maybe your institution got access?

[midnight wind]

¯_(ツ)_/¯

[minor roost]

look at this lol

[gleaming hatch]

i said "i sure do love the word out of stock"

[cyan raft]

With Plugins you can make them better than 69% of IDEs

[loud kelp]

I like how I understand just enough computer science to get this

[crystal hawk]

I had the good fortune of being interviewed on caches the day of, ie 30 minutes after my final on computer architecture 😛

[loud kite]

Epic

[clear thistle]

lmao ye for sure
n i c e btw

[mystic coral]

Wanna develop games?
Start today. Develop browser games easily.
This is the very first video of my Game development series using JavaScript.
Hope you like it 😀
Develop JavaScript games.
This is very first Tutorial of game development series..
https://youtu.be/2sMcvCLd5PI

[warm zenith]

who here hates me

(this is a fully functioning reaction roles bot I made)

[minor roost]

https://tenor.com/view/one-liners-avatar-war-forged-atla-ew-michael-scott-gif-17023923

[rotund harness]

One liner + taking a screen shot by using their phone...

[warm zenith]

"It's open source"

https://tenor.com/view/jack-sparrow-johnny-depp-pirate-spooky-magic-gif-11873823

[rotund harness]

Is something really open source, if no one wants the source?

[nocturne galleon]

Technically . . .. . . . . .
yes

[cyan raft]

ew cringe

[warm zenith]

I would have taken a normal screen shot but I made this on a school computer so

but I guess that just makes it funnier in a massochistic kind of way

[bright grotto]

isn't your case of the class off
Like ReactionRoles > reactionRoles

[warm zenith]

I prefer camelCase

[bright grotto]

Did you come from C# or something

[warm zenith]

no

I came from hypercube

[bright grotto]

Can't say I've heard a lot about that

[warm zenith]

it's incredibly obscure

[bright grotto]

Just be wary people will likely slate you for naming your classes that way in Java from what I've experienced

[warm zenith]

really?

[bright grotto]

yup

[warm zenith]

why? it literally doesn't affect anything

[bright grotto]

Something something readability something

[warm zenith]

as long as it doesn't start with a special character or number, right?

[bright grotto]

Class names should be nouns, in mixed case with the first letter of each internal word capitalized. Try to keep your class names simple and descriptive. Use whole words-avoid acronyms and abbreviations (unless the abbreviation is much more widely used than the long form, such as URL or HTML).

Oracle as a page on it https://www.oracle.com/java/technologies/javase/codeconventions-namingconventions.html#:~:text=Methods should be verbs%2C in,of each internal word capitalized.&text=Except for variables%2C all instance,words start with capital letters.

[warm zenith]

but it's a part of a minecraft server where they luse minecraft blocks to represent events, actions, if statements, etc. it's actually quite powerful for what it is. So don't be confused if you can't look it up online lol

[bright grotto]

Lmfao fair enough, I make Minecraft mods in my spare time

[warm zenith]

nice

[bright grotto]

this is me https://www.curseforge.com/members/suff99/projects

[warm zenith]

I'd actually recommend checking out the server, it is very very intuitive and easy to learn as well as not dumbed down for experts

also lots of doctor who stuff

[bright grotto]

yup

big fan

[warm zenith]

I used to be, but they took it off netflix before I ever had the chance to finish it

I was on the 12th doctor, too

[bright grotto]

outside the us? i recommend getting britbox or use bbc american if so

anyways, i worry we're taking this channel off topic

[warm zenith]

yeah

[bright grotto]

pls press ctrl alt L while this class is focused

[warm zenith]

I've always wanted to make minecraft plugins and mods

but hc is a great substitute while I learn actual java

plus it also has a player base so you can get people to play your game like, immediately

which is cool

[bright grotto]

cool

forge and fabric modding for mc isnt too hard

once you know the basics of java tho

[warm zenith]

yeah I've created very very simple mods

oh do you by any chance know how to do guild specific stuff on discord bots?

[bright grotto]

depends on the api

im assuming jda?

[warm zenith]

yeah

I was planning on looking it up later today lol but you seem to know what you're doing so I thought I might ask

I learn better from a person than a wall of text

[bright grotto]

well, i never looked into sharding discord bots (creating a instance per guild)
but for a basic approach if you dont expect your bot to be used in a load of servers is to just check the server id of the message

[warm zenith]

well I ask because I'm currently working on a bot, but I wanna make it so all the reaction roles and such aren't hard coded

and afaik there's no way to save a variable after a restart

or name a variable the ID of a guild (which by the way would be SO useful)

[bright grotto]

save to disk

[warm zenith]

oh my god you can do that?

[bright grotto]

well yeah

just read and write a json to the programs run directory

[warm zenith]

oh this opens so many possibilities lol

oh, to be a novice java developer in an oversaturated discord bot market

[bright grotto]

  public static String lttDiscordID = "375436620578684930";
    
    @Override
    public void onMessageReceived(@NotNull MessageReceivedEvent event) {
        Message message = event.getMessage();
        if(!message.isFromGuild()) return; //Guild messages only
        if(message.getGuild().getId().equals(lttDiscordID)){ //Is Ltt Discord?
            // Do something 
        }
    }```

How to only do something in one specific guild

[warm zenith]

well no duh

I do that

but I meant not hard-coded, like how reaction roles work

[bright grotto]

I would not know that as I don't have your code in front of me and you asked how to do guild specific things o.O

[warm zenith]

but save to disk does what i want it to so

[bright grotto]

glad to have been of help then lmao

[shrewd canopy]

I think you just want to save both the message ID and role ID for the reaction message to disk

[warm zenith]

thanks lol

[shrewd canopy]

Then when someone reacts to that message read from db

[bright grotto]

^^

[shrewd canopy]

However im not sure how the Java lib works, but the nodejs one doesn't receive the events after it has been restarted

Just something to keep in mind

[warm zenith]

finna learn how to make a database today B)))

[bright grotto]

sql aint too hard to learn

[umbral saffron]

I need pcb controller mounding ideas

It’s for a drone I made

[rancid nimbus]

Use lots of hot glue.

[umbral saffron]

I mean like what do I do with it

A custom remote housing, on my arm

[minor roost]

is that an IR transmitter? how do you intend to have it on your arm and still keep it pointed at the drone? @umbral saffron

[umbral saffron]

If I mount it on my arm with the LEDs sticking out then I just turn my arm and it’s pointing at the drone

[lament cave]

I recommend using a database (like MySQL/other variants), it takes a little more time to learn than json but it's so much more reliable if you're going to be reading/writing many times

[zenith depot]

Anyone here know how to use unity and mind helping me fast?

[nocturne galleon]

PSA: Any of you who use github, check out the chinese website CSDN for your code. Even if your code is free, someone else is able to make money from it by posting it on this website. I know it may seem unimportant, but I don't read chinese and I also can't use WeChat to report the offending listing.

[hallow pilot]

Are you talking about persisting a little bit of program state between restarts?

sqlite is amazing but may also be overkill. I'd start with serializing an object to a text file 😉

[violet cipher]

It all depends. Sqlite is fine if one can also afford to loose the information stored inside due to unrecoverable corruption (SQLite isn't, unlike a full fat RDBMS, very corruption resistant).
Serialized objects are also fine, just depends on how much one needs to perform operations with the data before loading it. Stuff like filtering

[inner wraith]

Honestly SQLite is much more corruption tolerant than you give it credit for.

Sudden poweroff's not that big of a deal, multiple applications accessing it simultaneously is safe as of version 3 with any vaguely modern operating operating system.

It's certainly more tolerant than serialised objects with no extra precautions, which handles neither of these safely.

Faster, too, as you don't have to load, edit and rewrite the lot for every change.

If you want corruption tolerance you should back your data up regularly. A "full fat RDBMS" will not save you from data loss if the disks it lives on die.

[warm sleet]

if your dataset is smaller than 1MB, you can just serialize it to json or xml

if you need more flexibility, try YAML

if you have a large dataset, consider a middleware database

@inner wraith its not multithreaded.

That's SQLites biggest problem

it doesn't scale.

it only really finds its use as configuration storage on embedded devices like in mobile apps

pretty sure that sqlite also doesnt enforce constraints, and doesn't have any transactions because of it being singlethreaded

so yes, data corruption can certainly still happen from application faults, if transactions are not properly committed. They can also not be corrected because there is no transaction log which can be used to rebuild the database in case of a fault.

[inner wraith]

Oh I'm perfectly aware that it doesn't scale for writes.

It actually does scale for reads btw (up to disk performance).

But the requirement was small, and simple.

It is vastly better than JSON, XML or YAML for the stated purpose because you don't have to deserialise and reserialise the lot on every update.

You mentioning threading is bizarre. Threads are not the issue, you can have multiple threads with SQlite... It just has to lock the file on disk for writes, putting a cap on write performance.

@warm sleet

[loud kelp]

Do any of you know anything about making oscilloscope software?

[pliant siren]

SQlite is fine for workloads small enough that you can afford to just do a regular data dump. We recently moved an app that's running on a 1GB SQLite DB from a VM to a kube cluster and for a variety of reasons the performance became so bad I've had to migrate the whole app to MySQL.

[pliant siren]

Yes. It's a LOT of data to store. Don't do it.

[gusty girder]

Hey guys. I got an SQL/EF Core 5 question for y'all:
I have a table Users, a table Games and a table Images.
Can I set EF Core 5 is such a way that both, user and games have a 1to1 relationship with images?
I dont want to have separate GameImages and UserImages tables.
edit: nvm figured it out.

[pliant siren]

You know how 8k cameras have crazy high data rates to store data? Well, oscilloscopes are like that.

[loud kelp]

Aw, and here I was hoping to make a cool effect to use with my live stream setup.

[pliant siren]

If you just want to sample it and plot an image it can be fine. But consider how many data points you need to sample and record if you're trying to represent say, a digital signal running at even 40MHz.

[loud kelp]

I take it the average video editing rig isn't going to be sufficient, then

[pliant siren]

It's not so problematic if it's just a continuous repetitive signal you're trying ot represent, but if you're trying to actually look for and measure changes in that wave? That's when you get in to crazy territory.

If all you want to do is ignore abberations and outliers, it's fine. But if you're talking the kind of oscilloscipe and equipment you might use for diagnostics? There's a reason they're expensive.

[loud kelp]

Well as I said I just want to make a cool visual to use on my Twitch stream
Nothing diagnostic about it, heh

But if that's the kind of quality it takes to make a nice visual, then I suppose I'll have to explore other ideas for the visual

[inner wraith]

Yeah, By the time you're trying to scale an application in a cluster out it's definitely time to use something else.

[shy helm]

are you familiar with how normal databases do locking to prevent conflicts? SQLite can’t do that

File locks render the DB effectively sequential access only

Also, reads are not fast, because SQLite requires file loading per connection, which is not at all like how normal databases work (where the DB reads to memory, amortized read across all apps)

[hollow basalt]

I kinda considered SQLite as a dev db

though I know it is much more than that

[inner wraith]

It uses filesystem locking, also yes completely aware of all of this

(Do people here think I'm suggesting Google switch their search engine databases over to SQLite or something?)

[hollow basalt]

[shy helm]

Nope, just pointing out why talking about concurrency isn’t odd?

[inner wraith]

This was in regards to someone wanting to store a bit of state per guild for a Discord bot. And concurrency != multithreading, which they claimed was impossible.

[shy helm]

SQLite is also not very corruption safe—I’ve had DBs randomly corrupt without recovery over a weekend for no reason, it also has poor handling of malformed data, which can brick tables and are annoying to recover from (since SQLite doesn’t enforce column types)

[inner wraith]

The proposed alternative was serializing JSON.

[shy helm]

SQLite is just CSVs, so not much different

[inner wraith]

Uh... no.

https://sqlite.org/wal.html

[shy helm]

I’m being emphatic 😜

I’m very familiar with SQLite, as someone who inherited a fairly critical app which uses it at work

Note: don’t let non engineers build stuff

[inner wraith]

I've seen some really stupid stuff when people with idea of how to plan a system out just bolt things on ad-hoc until every query takes a few minutes.

Current workplace has this issue bad.

Just inherited 3 systems with this problem about 2 months ago and I'm slowly cleaning up one of them because their solution was using BigQuery as a timeseries database (oh but we'll change historical events sometimes and break it).

[shy helm]

Oh god

[inner wraith]

Please do not use BigQuery as a general-purpose database!

[shy helm]

Ugh, I’ve had teams do something kinda similar—they used SyBase IQ for everything

☠️

[inner wraith]

It currently has ~50 small clients and costs $3k a month or so in query costs.

You pay per gigabyte scanned when you run a query.

Table's now partitioned on timestamp, so per-client report costs scale with the global data ingest size rather than with all data ever, so hooray.

You have 100 same-size clients rather than 50? All queries now cost double.

TLDR: When making software that scales to infinity in the cloud, make sure you actually think about what would happen if it did.

[pliant siren]

This was just a single node - it was just that the performance of the disks on the kube cluster was far slower than when we had it on SSDs on the VMs.

[warm sleet]

Good man.

You got my point.

[fervent orbit]

lol

[lament cave]

what???

[nocturne galleon]

All that hardwork must have really paid off, right?

Right?

[celest imp]

Pretty easy question i suppose but i dont know anyone who could answer it:
Is PHP dead? i have an option between HTML/CSS course vs a PHP one.
They say at the school that PHP one is pretty easy but i don't want to learn something i wont have full value of if its going down the drain.

[spring pond]

from what i know php is more similar in use case to something like python or node js

id personally recommend node or python over php, but you should take that html/css course regardless

@celest imp

[celest imp]

Thanks for input @spring pond. similar answer from what i've gotten on other places, so guess il go CSS then php if time allows it.

[shy helm]

To be clear, HTML/CSS are not programming languages

[midnight wind]

Yeah, and all major websites don't write pure html/css

Its always a framework

[celest imp]

I mean i've already finished C# and starting python in 3 weeks. have to expand due to points to get in to another school. rather learn something IT wise instead of History of bangladesh or something.

[hallow pilot]

If you're looking at maximizing utility, I'd probably do the html/css thing if you're not yet very familiar with them. It's something that just about all major web tech stacks have in common. Take any frontend framework, any backend framework, and they're probably producing HTML and CSS. Even if they have you build the UI out of some other primitives, it's good to understand what is happening in the browser.

[celest imp]

Yeah makes sense. I've marked myself for HTML/CSS now and having PHP as backup/future one unless something else pops up.
due to Distance EDU right now here its a bit finicky to get into to some courses so i take what i can 🙂

[hollow basalt]

you can self-study

or that isn't possible?

[celest imp]

with kids a job house and wife, Not much time left sadly

need the course points as well to have it as a valid excuse to cut down worktime for moneeys

[exotic glacier]

anyone up for a c++ problem?

i may or may not be an idiot

cout << "Digite o " << numDeInput << " numero : \n";
cin >> ntemp;
if (numDeInput == 1)
{
break;
}
else
{
input[numDeInput] = ntemp;// guarda o valor digitado no local x do array
numDeInput++;

    }//os numeros 1 ,2,3,4 estao no array input
}

numD1 = input[0];
numD2 = input[1];

in this code on line 3 if i have it ==1 it never stores on the [1] position.

if i have it to ==2, aks for the input 3 times and only then saves it to [1]

i cant for the life of me figure out why

supposed to ask for two inputs and save them to [0] and [1]

[languid canopy]

quick question, where did you learn C++, I have been learning C# making discord bots ect. but am limited to what i can do

C++ seems to be better for communicating with games so wondering where you learnt

[exotic glacier]

im in university

trying to learn it , really haha

[languid canopy]

ahhh yeah thats fair enough, that'll teach you 😂

thanks for the help anyways!

[exotic glacier]

im at a point if i dont know if im being very stupid. or something is borked

[languid canopy]

i know the feeling

[midnight wind]

I learnt from embedded programming

still learning

[languid canopy]

i spend 4 hours filtering a list earlier.... yes i was being stupid 😂

[languid canopy]

what do you mean by this?

[midnight wind]

code on microcontrollers

stuff like Arduino

[languid canopy]

ohhhh i see

thats pretty cool

i would like to get to that stage at some point just gotta change jobs first

full stack web dev seems like the best option

[exotic glacier]

am in fact an idiot, thank you !

cause it was what i saw on stack overflow

[glad glen]

So I've got a 7* 6 2D array (width* height) in python. Say if I have a particular array index like [5][4], how can I return the positive and negative diagonals as separate lists?

[languid canopy]

Yeah im planning to make a plugin for a game to output information which can be handled with a bot

possibly expand it to allow more people to get involved with developing plugins for the game without having to learn C++ by allowing them to access all the data via the C++ plugin

thats the plan anyways xD

think I will need it tbh 😂

[placid zinc]

@bot.command()
async def wanted(ctx, user:discord.Member = (None)):
 if user==None:
  user = ctx.author
 wanted = Image.open("wanted.jpg")
 asset = user.avatar_url_as(size=128)
 data = BytesIO(await asset.read())
 pfp = Image.open(data)
 pfp = pfp.resize((284,284))
 wanted.paste(pfp, (88,229))
 wanted.save("profile.jpg")
 await ctx.send(file=discord.File("profile.jpg"))

Poggas

[warm sleet]

Anyone know how to get Visual Studio code to be aware of Angular concepts?

I've created some components, and now wish to have syntax completion when doing string interpolation

I added the Angular Extension Pack, though I still do not interpolation with autocomplete.

[hallow pilot]

Like, inside the .html?

[nocturne galleon]

Anyone here know how to port a linux application to macOS (ie. re-compile an app for macOS)?
Do I just have follow the compile instructions?

[warm sleet]

@nocturne galleon any app specifically?

@hallow pilot Yeah. But I concluded it was caching. Restarting the editor suddenly made it work.

[nocturne galleon]

Specifically "Ryujinx" but I confirmed with someone that it would build, as for working well, I have to see if MoltenVK works/improves the experience a little bit

[warm sleet]

@nocturne galleon Its .NET Core

[nocturne galleon]

Yup

[warm sleet]

Yeah so that probably runs fine on macOS

[nocturne galleon]

Alr, Thanks

[warm sleet]

@nocturne galleon https://dotnet.microsoft.com/download/dotnet/thank-you/sdk-5.0.202-macos-x64-installer

You need this

[nocturne galleon]

Thank you but I already installed it

[warm sleet]

fair

[rotund harness]

Still having problems?

[warm sleet]

@rotund harness well, just lack of autocomplete in my component templates

it doesn't immediately recognize functions that I created

I'm used to using WebStorm

but my employer does not pay for this sadly enough

really miss my IDE :(

[midnight wind]

https://developer.mozilla.org/en-US/

what are you having trouble understanding

https://youtu.be/RvYYCGs45L4

for promisses specifically

I reccomend to use async/await for more readable code

which is just synatic sugar on top of promisses

https://youtu.be/vn3tm0quoqE

@unkempt sonnet

[umbral saffron]

I’m trying to use an old psvr for a project, and I’m trying to connect it to my Mac

The only thing I’ve found is MacMorpheus

Has anyone used it? I need help setting it up

[rare dagger]

''undeclared identifier''

help

[warm sleet]

@unkempt sonnet the solution: do not use plain javascript

typescript has a whole language construct for async code, and it takes out all the crap that javascript does

async functions, which you can await for

async functions return promises, which you can either wait for, or callback

typescript has this built into the language, so you don't need to declare promises, it automatically wraps them

async getSomething(): Promise<string> { }

you can then wait for: const something = await getSomething()

if you don't use await, it will return immediately and set something to a promise of type string.

[midnight wind]

so does js

js has async/await

I am learning ts though

for the types and everything

and checking

[warm sleet]

@midnight wind how is it so far ? :o

not bad eh?

[midnight wind]

just started yesterday learning the concepts. Going to redo a discord bot I'm making to TS

the hardest part is the beggining since I want to keep it maintainable

so like, do I keep each command in it's own object?

do I do this

do I do that

basically it's a bot that takes info from this API

https://ll.thespacedevs.com/2.2.0/

caches it in redis

and you can do things like this

what I have trouble with though is the caching of the actual embeds since they have classes and you can't serlize them. So for now I just turned off caching for the embeds and just did the api requests

and on the other hand I need classes for the embed since I need to add the In <time>

I just need to redesign how I do it

[warm sleet]

@midnight wind the trick with loose functionality you'd want to put in a class otherwise, is to use constants with functions in them

so const myfunction = () => { //body }

you can import these from any other location

without needing a class instance

[midnight wind]

yeah that's what I was thinking

what I was also thinking is to just cache the data, but then when it's retrived from cache and deserlized it will tag on methods

this mess..

https://github.com/PresentMonkey/RocketBot/blob/master/rocketbot/launch_library.js

[sand kayak]

If someone wants to do a paid commission to make 2 Youtube chat commands (with API's inside of them) send me a message. $30 USD for re-making these 2 commands from Twitch over to Youtube.

I'll send you all the documentation and API related stuff, so yeah let me know

[hallow pilot]

Lol that's some discount software development 😉

Do you already have a bot in the youtube chat thing?

[rotund harness]

Yeah, I feel like asking a dev to do something for 30$ is more insulting then just asking them to do it for free. You probably would be better off with something like "Anyone available / willing to help with some youtube bot? I have it working in twitch but want it working in youtube."

That being said, might be students in here - that just want something to do - who knows :/

[sand kayak]

I'm not asking someone to make a bot. It's just two commands in nightbot.

You plug in variables to read a YouTube chat api in both examples. You're not programming a new bot, just creating two commands within http://nightbot.tv

[hallow pilot]

Ah, okay, that makes more sense. It's making a new nightbot command, within nightbot, using their syntax. Not general-purpose code in a general-purpose bot.

Their docs describe integrations that pull information from a bunch of third-party sources, including Twitch, PSN, etc.. but I don't see anything about YouTube: https://docs.nightbot.tv/commands/variableslist

[sand kayak]

For the nightbot stuff mentioned above you would be using URLFetch to read/output stuff from a Youtube API

https://docs.nightbot.tv/variables/urlfetch
https://developers.google.com/youtube/v3/live/docs

[midnight wind]

yea, kinda

sure

widget?

There's embeds

but those are just fancy messages

not really iirc

[spring pond]

afaik there is no “live update” functionality for discord

[midnight wind]

really all you have is updating the message

[minor roost]

do you know how to disable the auto bracket-new-line in vscode c++?

[hallow pilot]

identify the plugin responsible, and see if it has any settings you can change?

I haven't used it in a while, but it looks like the plugin respects .clang_format

https://github.com/microsoft/vscode-cpptools

[nocturne galleon]

Have a go yourself if you haven't before paying someone $30

[sand kayak]

I did. Couldn't figure out any of it. I'm just a streamer, not an api... person. Makes me seem like an idiot but yeah

[warm sleet]

@sand kayak are you looking for a program to stream to youtube?

its just a bit annoying to configure, because these kind of network thingies are very strict, can't mess up :3

and nomenclature is always a bit confusing if you dont work with it

[sand kayak]

@warm sleet im looking for someone to make two commands within nightbot (http://nightbot.tv) that pull data from YouTube api's

[warm sleet]

mh. not really my world

[nocturne galleon]

No that's fair. I'll have a look for you.

[hallow pilot]

The next questions I'd try to answer are 1) does youtube even have equivalent APIs, and 2) is the nightbot http client capable of talking to them (which may mean multiple requests, authentication headers, etc.)

[vocal nova]

Just want to show of a pic of a synth i'm working on ❤️

[cyan raft]

He's prlly reusing the same code

[pliant siren]

Yeah, you want promises. What you're asking for is basically what makes javascript ugly and difficult to use compared with other languages.

[hallow pilot]

async is contagious. afaik there's not a great way to get back to synchronous. so you have to let msg = await getID(); , which means you need to be in an async function, which means that needs to be async, all the way up to your entry point

What kind of execution environment? (web browser? node.js?)

[lone hornet]

I'm having trouble understanding this prompt from my textbook "Declare an array of three pointers to functions and invoke the appropriate
function based on an index value passed in as an argument.". can someone clarify what pointers to functions mean?

[midnight wind]

Callbacks

msgID would be a promise value. What you want is let magID = await getID(); but that wouldn't work if it is not in a asyc function. What else you can do is this js let msgID; getID().then((id)=>{msgID = id})

They lower would work ona top-level

Async/await is just a wrapper around the function().then.then.finally.catch syntax

But async await is much more readable than promise chains

[elder nebula]

does anyone know how to use an if statment along with an else if to play sound
with a list of numbers associated

this is js btw

[midnight wind]

switch?

[elder nebula]

wdym?

[elder nebula]

what does that mean?

[midnight wind]

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/switch

[elder nebula]

I work in code.org because my school makes me

I don't think that statment is in code.org

[midnight wind]

its javascript

[elder nebula]

besides i dont think our teacher expects us to know what that is

[midnight wind]

switch is the best one

js is js

coding is constantly looking things up

[midnight wind]

so? say you learning it^

[elder nebula]

ig well thanks for the help

[fickle verge]

I have no clue as to why Euler's Number is being used in this codepen
https://codepen.io/Alca/pen/BZbPrE

its a clock

[hallow pilot]

language? (C?)

[midnight wind]

yes

lots of calls to discord api

I think there is a limit

https://discord.com/developers/docs/topics/rate-limits

[loud kelp]

Proud of my team for getting a new version of our game out today

[lone hornet]

Yeah, it's in the C language

[rancid nimbus]

void (*fun_ptr_arr[])(int, int) = {add, subtract, multiply};

https://www.geeksforgeeks.org/function-pointer-in-c/

[hallow pilot]

Once you understand the concept, but never remember the syntax, then there's https://goshdarnfunctionpointers.com/

[brisk sparrow]

Does anyone code here and if so what software do you recommend. I've finished a couple ap computer classes over java and I wanted to code over the summer(doesn't have to specifically be for java). I've used visual studio but I've heard people trash it so I was wondering if there were better alternatives

[undone pond]

I personally use Atom. Atom is more than enough for me lol

but for java, you may want to use Jet Brain's IntelliJ IDEA

[brisk sparrow]

ill try it out

👍

[undone pond]

notepad++ is alright, but please don't use normal notepad

[hallow pilot]

Interested in other languages? Or just more tools to Java with

[nocturne galleon]

monke

[brisk sparrow]

yeah im kinda looking to dip my toes into a couple languages

[hallow pilot]

Whatever language(s) you choose, I'd recommend https://exercism.io/ for a series of small exercises to work through.

I wish I'd been exposed to functional programming earlier when I was learning. (maybe try F# or Clojure)

[brisk sparrow]

alright thanks, Ill take a look at it

[warm sleet]

@brisk sparrow IDEA Community edition

https://www.jetbrains.com/idea/download/

[hollow basalt]

hard to beat that IDE

[warm sleet]

If you are looking for a java IDE, look no further

Its hands down the best one on the market

I've been using ultimate for the last 8 years now, and I cannot really go without it anymore

@hollow basalt the ultimate version can also be used for web development, python, node, etc

[hollow basalt]

i do use it for that

[warm sleet]

plugins are free for the ultimate version

[hollow basalt]

spring

[warm sleet]

ew

[hollow basalt]

ehh, it's what the work needs

[warm sleet]

I know IDEA integrates with spring

[hollow basalt]

sooo

[warm sleet]

but that doesn't fix the shittyness that is spring.

[hollow basalt]

[warm sleet]

my new workplace uses spring for everything

[hollow basalt]

must be fun

[warm sleet]

and they have a "micro"-service for OAuth2 tokens

[hollow basalt]

[warm sleet]

and the binary + libraries = 85MB in size

80% of that is Spring.

[hollow basalt]

time to migrate to boot

[warm sleet]

no

[hollow basalt]

for even more lel

[warm sleet]

Time to migrate to Spark

http://sparkjava.com/

You really do not need much for a tiny rest service

[hollow basalt]

spark is nice especially kotlin

[hollow basalt]

yeaaa

[warm sleet]

I wrote an MVC framework ontop of spark xD

with route handling

[hollow basalt]

i see that sparked your interest

[warm sleet]

dadum

tss

[hollow basalt]

haven't used spark yet

but seems a lot more lightweight than spring

like a ton

[warm sleet]

    private static TemplateViewRoute createCall(final Method method,
                                                final Object provider,
                                                final boolean login) {
        return (request, response) -> {
            try {
                if (login && !session(request).login()) {
                    LoginHelper.login(request, response);
                    return null;
                }
                return (ModelAndView) method.invoke(provider, request, response);
            } catch (IllegalAccessException | InvocationTargetException e) {
                throw new InternalServerErrorException(e);
            }
        };
    }

@hollow basalt pretty neat ^

this takes a service method, and service object instance

and a boolean if the user is logged in or not

it generates a function

[hollow basalt]

yikes, that code makes me feel like I'm using js

[warm sleet]

that handles the request

@hollow basalt the entire route resolving is done with lambdas

it wraps the target method

[hollow basalt]

I do like lambdas

but for simple anonymous functions

[warm sleet]

@hollow basalt yeah but the thing is

route discovery is done through reflection

I scan types by annotation

and register them in a list

(ModelAndView) method.invoke(provider, request, response);

this is a reflective method invocation

this.getClass().getMethod("foo").invoke(this, "hello world");

[hollow basalt]

I also use reflection in spring, but tbh. i don't like it that much

[warm sleet]

@hollow basalt its the one thing that makes OO powerful lol

reflection.

@hollow basalt lol route discovery: https://i.imgur.com/1Y5bkwB.png

[hollow basalt]

yikes

[warm sleet]

yeah..

xD

its one gigantic functional-loop

[hollow basalt]

"lambdas for simple"

[warm sleet]

first part filters classes from service classes

the second part

                        Arrays.stream(p.getDeclaredMethods())
                                .filter(m -> m.isAnnotationPresent(GET.class))
                                .forEach(m -> {
                                    String mPath = "";
                                    if (m.isAnnotationPresent(Path.class)) {
                                        mPath = m.getAnnotation(Path.class).value();
                                    }
                                    m.setAccessible(true);
                                    route.addRoute(
                                            new Tuple<>(
                                                    RequestMethod.GET, combinePath(path, mPath)
                                            ),
                                            createCall(m, object, m.isAnnotationPresent(RequiresLogin.class))
                                    );
                                });

goes over each method of that service class

checks if it has a GET annotation

then it checks for a path (class and method can define a path)

[hollow basalt]

idk man, do you like the annotation more?

[warm sleet]

:D

annotations ❤️

[hollow basalt]

i kinda like explicit registering them

like
app.register("/",GET) or some sht

[warm sleet]

@hollow basalt well thats the thing

that getRoutes() method

returns a list of elements that can be app.register()'ed

[hollow basalt]

i kinda like "explicitly" doing it, than being wowed with the magic of "it just works"

[warm sleet]

@hollow basalt well.

idk

@Path("status")
public class StatusController {

    @GET
    @Path("service")
    @RequiresLogin
    public ModelAndView getServiceStatus(Request request, Response response) {
        Map<String, Object> models = new HashMap<>();
        ServiceAPIClient client = session(request).getClient();
        models.put("services", client.getStatus().getService());
        models.put("servers", client.getServers().getServer());
        models.put("page", "Status");
        models.put("page_desc", "Services");
        return new ModelAndView(models, "status/service");
    }
}

I think this is pretty nicely done ^

this is the code it 'reflects' over

this registers a GET to /status/service

[hollow basalt]

-> @RequiresLogin , your auth middleware i assume

[warm sleet]

@hollow basalt that's actually a JavaEE annotation

but yes, I implement its functionality

[hollow basalt]

and that's why I don't usually program in java

[warm sleet]

createCall(m, object, m.isAnnotationPresent(RequiresLogin.class))

^ see

@hollow basalt requires login just forces a redirect to the login page

and encodes the original URL as a parameter

after login

it redirects you to the place of origin