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BETA USER: Is this feature working? When I add a link I get an error that says "URL cannot be more than 255 characters."
ME (biting my tongue): Hi ****, Yes it works. The link you're trying to add is too long. Please try a shorter URL.
BETA USER: Oh, it should tell you that!
😳🤪🤬11 -
When we found out MySQL utf8 isn't actually utf8..... it's a proprietary subset of utf8 that only includes up to Unicode 255..... and there is a separate "utf8mtb4" that is actual utf8.8
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@dfox @trogus How about ++ milestones?
F.e.:
404 ++'s: “Error 404“
255 ++'s: “256 Bytes“
69 ++'s: (Well you know...)
And so on... (be creative)20 -
I’m surrounded by idiots.
I’m continually reminded of that fact, but today I found something that really drives that point home.
Gather ‘round, everybody, it’s story time!
While working on a slow query ticket, I perused the code, finding several causes, and decided to run git blame on the files to see what dummy authored the mental diarrhea currently befouling my screen. As it turns out, the entire feature was written by mister legendary Apple golden boy “Finder’s Keeper” dev himself.
To give you the full scope of this mess, let me start at the frontend and work my way backward.
He wrote a javascript method that tracks whatever row was/is under the mouse in a table and dynamically removes/adds a “.row_selected” class on it. At least the js uses events (jQuery…) instead of a `setTimeout()` so it could be worse. But still, has he never heard of :hover? The function literally does nothing else, and the `selectedRow` var he stores the element reference in isn’t used elsewhere.
This function allows the user to better see the rows in the API Calls table, for which there is a also search feature — the very thing I’m tasked with fixing.
It’s worth noting that above the search feature are two inputs for a date range, with some helpful links like “last week” and “last month” … and “All”. It’s also worth noting that this table is for displaying search results of all the API requests and their responses for a given merchant… this table is enormous.
This search field for this table queries the backend on every character the user types. There’s no debouncing, no submit event, etc., so it triggers on every keystroke. The actual request runs through a layer of abstraction to parse out and log the user-entered date range, figure out where the request came from, and to map out some column names or add additional ones. It also does some hard to follow (and amazingly not injectable) orm condition building. It’s a mess of functional ugly.
The important columns in the table this query ultimately searches are not indexed, despite it only looking for “create_order” records — the largest of twenty-some types in the table. It also uses partial text matching (again: on. every. single. keystroke.) across two varchar(255)s that only ever hold <16 chars — and of which users only ever care about one at a time. After all of this, it filters the results based on some uncommented regexes, and worst of all: instead of fetching only one page’s worth of results like you’d expect, it fetches all of them at once and then discards what isn’t included by the paginator. So not only is this a guaranteed full table scan with partial text matching for every query (over millions to hundreds of millions of records), it’s that same full table scan for every single keystroke while the user types, and all but 25 records (user-selectable) get discarded — and then requeried when the user looks at the next page of results.
What the bloody fucking hell? I’d swear this idiot is an intern, but his code does (amazingly) actually work.
No wonder this search field nearly crashed one of the servers when someone actually tried using it.
Asdfajsdfk.21 -
ARGH. I wrote a long rant containing a bunch of gems from the codebase at @work, and lost it.
I'll summarize the few I remember.
First, the cliche:
if (x == true) { return true; } else { return false; };
Seriously written (more than once) by the "legendary" devs themselves.
Then, lots of typos in constants (and methods, and comments, and ...) like:
SMD_AGENT_SHCEDULE_XYZ = '5-year-old-typo'
and gems like:
def hot_garbage
magic = [nil, '']
magic = [0, nil] if something_something
success = other_method_that_returns_nothing(magic)
if success == true
return true # signal success
end
end
^ That one is from our glorious self-proclaimed leader / "engineering director" / the junior dev thundercunt on a power trip. Good stuff.
Next up are a few of my personal favorites:
Report.run_every 4.hours # Every 6 hours
Daemon.run_at_hour 6 # Daily at 8am
LANG_ENGLISH = :en
LANG_SPANISH = :sp # because fuck standards, right?
And for design decisions...
The code was supposed to support multiple currencies, but just disregards them and sets a hardcoded 'usd' instead -- and the system stores that string on literally hundreds of millions of records, often multiple times too (e.g. for payment, display fees, etc). and! AND! IT'S ALWAYS A FUCKING VARCHAR(255)! So a single payment record uses 768 bytes to store 'usd' 'usd' 'usd'
I'd mention the design decisions that led to the 35 second minimum pay API response time (often 55 sec), but i don't remember the details well enough.
Also:
The senior devs can get pretty much anything through code review. So can the dev accountants. and ... well, pretty much everyone else. Seriously, i have absolutely no idea how all of this shit managed to get published.
But speaking of code reviews: Some security holes are allowed through because (and i quote) "they already exist elsewhere in the codebase." You can't make this up.
Oh, and another!
In a feature that merges two user objects and all their data, there's a method to generate a unique ID. It concatenates 12 random numbers (one at a time, ofc) then checks the database to see if that id already exists. It tries this 20 times, and uses the first unique one... or falls through and uses its last attempt. This ofc leads to collisions, and those collisions are messy and require a db rollback to fix. gg. This was written by the "legendary" dev himself, replete with his signature single-letter variable names. I brought it up and he laughed it off, saying the collisions have been rare enough it doesn't really matter so he won't fix it.
Yep, it's garbage all the way down.16 -
Back in school a class mate used a bat file to recursively create a directory an then enter it and repeat.
The directory also ended with ascii 255 which looks like a space and when placed at the end is invisible.
This was in msdos and there was no mouse or autocomplete, also no deleting of non empty directories.
The teacher finally gave up and admitted he could not solve it.
You had do make a new script first to traverse to the inner most dir, then recursively back trace removing directories.2 -
I'm bored af so I'm creating a language based on images.
In one day I instantiated my first variable :D
Basically, the first pixel defines the action type (in this case, red = initialize variable), the second one defines the variable color (aka name), and the rest defines the value using grey scale (0-255, every r/g/b is a character).
I know this is soooooooo useless but I just want to do something particular.
*Epic music* this is the birth of JPxl *stop epic music*!
9 -
When you've been coding for what seems like an hour and when you finally look up it's dark outside 😛
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A graphical artist wanted to save memory by coloring unused pixels in a spritesheet black because 0 is less than 255...
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declare @username varchar(255)
if @username is null
set @username = suser_name()
.........
WHAT DID YOU EXPECT @USERNAME TO BE RIGHT AFTER YOU DECLARED IT???6 -
I'm debugging someone else's 10 year old legacy .asp web application (shoot me now), and I'm trying to find the most recent records in a database table.
Why is the most recent record from September of last year?
Oh.
Because they're storing the datetime value as varchar (40).
Good thing they were smart enough not to waste disk space by using varchar (255)!4 -
Follow-up to my previous story: https://devrant.com/rants/1969484/...
If this seems to long to read, skip to the parts that interest you.
~ Background ~
Maybe you know TeamSpeak, it's basically a program to talk with other people on servers. In TeamSpeak you can generate identities, every identity has a security level. On your server you can set a minimum security level you need to connect. Upgrading the security level takes longer as the level goes up.
~ Technical background ~
The security level is computed by doing this:
SHA1(public_key + offset)
Where public_key is your public key in Base64 and offset is an 8 Byte unsigned long. Offset is incremented and the whole thing is hashed again. The security level comes from the amount of Zero-Bits at the beginning of the resulting hash.
My plan was to use my GPU to do this, because I heared GPUs are good at hashing. And now, I got it to work.
~ How I did it ~
I am using a start offset of 0, create 255 Threads on my GPU (apparently more are not possible) and let them compute those hashes. Then I increment the offset in every thread by 255. The GPU also does the job of counting the Zero-Bits, when there are more than 30 Zero-Bits I print the amount plus the offset to the console.
~ The speed ~
Well, speed was the reason I started this. It's faster than my CPU for sure. It takes about 2 minutes and 40 seconds to compute 2.55 Billion hashes which comes down to ~16 Million hashes per second.
Is this speed an expected result, is it slow or fast? I don't know, but for my needs, it is fucking fast!
~ What I learned from this ~
I come from a Java background and just recently started C/C++/C#. Which means this was a pretty hard challenge, since OpenCL uses C99 (I think?). CUDA sadly didn't work on my machine because I have an unsupported GPU (NVIDIA GeForce GTX 1050 Ti). I learned not to execute an endless loop on my GPU, and so much more about C in general. Though it was small, it was an amazing project.1 -
When you get a laptop that comes with freeDOS?
Link, just in case: http://ebuyer.com/786174-hp-255-g5-...
Yeah, it's a bit long. Sorry.
18 -
It's 1:00( 1 am) here now...I wanted to get some coding done since 20:00(8 pm for the weird people ;P)
Got distracted by Dev rant all the time -.- and didn't write a single line of code...fml5 -
css quick maffs
so, you want to make a css gradient from a certain color into transparent. The logical way would be doing it like this:
linear-gradient(#112233, transparent)
however, this will cause a blurred black stripe to appear in safari. This is due to safari-specific algorithms (that also make it the quickest browser, especially on arm-powered macs).
stackoverflow and other boubas will suggest doing this:
linear-gradient(#112233, rgba(255, 255, 255, 0))
this is better, but instead of a black stripe, a half-transparent white stripe will appear.
To finally make this gradient render consistently across different browsers, do this:
linear-gradient(#112233, #11223300)
Now, you're only changing alpha. See, CSS is a declarative language, so you should be telling it EXACTLY what you want to achieve. You don't want to change one color into another (in that case, "#112233" into "transparent", yes, they are distinct colors that are totally different. CSS doesn't treat "transparent" in some special way like we do) but to only change the alpha channel of #112233.
Feel free to use rgba notation if you want to support older browsers:
linear-gradient(rgba(11, 12, 13, 1), rgba(11, 12, 13, 0))
aight bye2 -
Who thought it would be a good idea to limit the length of a dns record to 255 chars?
Is one really not allowed to use a proper dkim key in 2018!
The funny thing was that they just cut off the rest without informing the user!
Had to convince the guy to switch dns „provider“9 -
My girl friend was complaining that I care more about programming than her.
I told her,
"Trust me baby, in the array of my interests you are [1]."
She was satisfied.3 -
Called to maintain a WordPress site. Site has 100 plugins, two to disable right click. Somebody kill me already 😂😂😂1
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Holy duck, I lost two days on a convolutional autoencoder splitted in two separate neural networks to encode and decode separately, it reconstruction had some strange behaviours. I was giving as input an image and then saving the encoded compressed representation in a new image, in this way I could decode it with the decoder whenever I want saving space.
How much retarded am I?
The internal layer's weights hadn't constraints so in learning phase the convolutional filters can contain any number, positive > 255 or even negative and I cannot save it in a new image as they are so they were clipped automatically between 0 and 255 with an huge information loss.
It's so frustrating when you rewrite the code in any possible way, you obtain the same wrong result and then you realize that was a borderline behaviour of a third part library.1 -
So recently I had an argument with gamers on memory required in a graphics card. The guy suggested 8GB model of.. idk I forgot the model of GPU already, some Nvidia crap.
I argued on that, well why does memory size matter so much? I know that it takes bandwidth to generate and store a frame, and I know how much size and bandwidth that is. It's a fairly simple calculation - you take your horizontal and vertical resolution (e.g. 2560x1080 which I'll go with for the rest of the rant) times the amount of subpixels (so red, green and blue) times the amount of bit depth (i.e. the amount of values you can set the subpixel/color brightness to, usually 8 bits i.e. 0-255).
The calculation would thus look like this.
2560*1080*3*8 = the resulting size in bits. You can omit the last 8 to get the size in bytes, but only for an 8-bit display.
The resulting number you get is exactly 8100 KiB or roughly 8MB to store a frame. There is no more to storing a frame than that. Your GPU renders the frame (might need some memory for that but not 1000x the amount of the frame itself, that's ridiculous), stores it into a memory area known as a framebuffer, for the display to eventually actually take it to put it on the screen.
Assuming that the refresh rate for the display is 60Hz, and that you didn't overbuild your graphics card to display a bazillion lost frames for that, you need to display 60 frames a second at 8MB each. Now that is significant. You need 8x60MB/s for that, which is 480MB/s. For higher framerate (that's hopefully coupled with a display capable of driving that) you need higher bandwidth, and for higher resolution and/or higher bit depth, you'd need more memory to fit your frame. But it's not a lot, certainly not 8GB of video memory.
Question time for gamers: suppose you run your fancy game from an iGPU in a laptop or whatever, with 8GB of memory in that system you're resorting to running off the filthy iGPU from. Are you actually using all that shared general-purpose RAM for frames and "there's more to it" juicy game data? Where does the rest of the operating system's memory fit in such a case? Ahhh.. yeah it doesn't. The iGPU magically doesn't use all that 8GB memory you've just told me that the dGPU totally needs.
I compared it to displaying regular frames, yes. After all that's what a game mostly is, a lot of potentially rapidly changing frames. I took the entire bandwidth and size of any unique frame into account, whereas the display of regular system tasks *could* potentially get away with less, since most of the frame is unchanging most of the time. I did not make that assumption. And rapidly changing frames is also why the bitrate on e.g. screen recordings matters so much. Lower bitrate means that you will be compromising quality in rapidly changing scenes. I've been bit by that before. For those cases it's better to have a huge source file recorded at a bitrate that allows for all these rapidly changing frames, then reduce the final size in post-processing.
I've even proven that driving a 2560x1080 display doesn't take oodles of memory because I actually set the timings for such a display in order for a Raspberry Pi to be able to drive it at that resolution. Conveniently the memory split for the overall system and the GPU respectively is also tunable, and the total shared memory is a relatively meager 1GB. I used to set it at 256MB because just like the aforementioned gamers, I thought that a display would require that much memory. After running into issues that were driver-related (seems like the VideoCore driver in Raspbian buster is kinda fuckulated atm, while it works fine in stretch) I ended up tweaking that a bit, to see what ended up working. 64MB memory to drive a 2560x1080 display? You got it! Because a single frame is only 8MB in size, and 64MB of video memory can easily fit that and a few spares just in case.
I must've sucked all that data out of my ass though, I've only seen people build GPU's out of discrete components and went down to the realms of manually setting display timings.
Interesting build log / documentary style video on building a GPU on your own: https://youtube.com/watch/...
Have fun!20 -
spend better part of my day processing about 400M rows of data with MySql, woo ain't no single line of code that can do that in 12hrs 😊
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Despite the fact that its 2016, Visual Studio still can't seem to handle filepaths greater than 255 characters...1
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Here's something that should be an unspoken rule in the dev space:
DON'T MAKE A LESSON OF YOUR TEAMMATE'S MISTAKES (OR WHAT YOU CONSIDER A MISTAKE).
More context:
I defined a column as `mediumText` in a Laravel app. What the asshole team lead did after seeing that in my PR, is taking that snippet and blast that out in the company dev slack channel on full display, saying - "Guys we shouldn't take more space in the database than we need to. If the value for the column would be < 255 characters please take VARCHAR not MEDIUMTEXT".
I mean, what an asshole !!! You could've told me that privately and I'd have happily changed it. The reason I did so, is to be safeguard myself from the future, in case the value length increases or decreases. Last thing I want to see in the logs is "Column size is too short for column {COLUMN}, value truncated".
But nah nah, let's take a screenshot of that snippet and `teach` everyone else what should and shouldn't be done according to your `standards`.
Fucking piece of shit team lead.16 -
It looks like packages on npm have "disappeared".
https://github.com/npm/registry/...
Gotta love javascript.2 -
Going to design a contract for my services it's going to include additional costs for additional changes because with clients the job is never done 😉😉3
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Is it me or software subscriptions make developers lazy?
There is a great photo editing software: Capture One. Every year they release a new major version, so users need to buy an upgrade. In the past developers packed a bunch of big changes into major update, also they released 3 minor updates yearly, and every minor update brought some cool features. But then they added subscription model which was cheaper then perpetual model. And at the same time major updates became not that cool. Developers started to add enterprise features needed by museums, features involving other camera brands users, changes targeted at newbies and so on. For perpetual model users most of these changes are not worth 80-255 EUR yearly (depends on license type and offs) but is ok for subscription model users because they continue using the software and even small updates and enhancements are fine for them.
Not every major update is that weak but many of them are not worth upgrade. And developers are not motivated to do more cool stuff because subscription model users will continue paying for their subscriptions.1 -
So, the other day, I was working in Unity, and trying to find the complement of a byte number. That is, 255 - myByte. So, I write this :
Byte newByte = 255 - myByte;
And it says that it can't convert from a byte to an int. Okay... So, I do this:
Byte newByte = byte.MaxValue - myByte;
And still, it errors the same thing. So, a quick google search proves that no matter what, the subtraction operator returns an int. WHAT IS WRONG WITH C#? That is the dumbest thing ever!4 -
I finally attempted php, I wrote a bunch of scripts to fetch data... I feel like I have betrayed myself 😞😞😞
I should have just absorbed the cost of azure 😭😭😭 now am a php dev.... The things I'm about to do, the horrors I'm about to put out into the world.... Pulling your hair out will be the least of your worries, dear maintainer forgive us all, always and forever. 😳1 -
A toast to the perks of backend, to never being bothered again with every single ui change.... Just you and your code 😏😀2
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3ds Max Python API Documentation.
No function has a single word explaining what it does.
The Documentation seems like it is completely auto generated and while writing the API they forgot to add Docstrings....2 -
On page 19 of the ethereum yellow paper: http://gavwood.com/paper.pdf it defines the address of a wallet as: A(pr) = Β[96...255](KEC(ECDSAPUBKEY(Pr))), which is the right most 160-bits of the Keccak hash of the public key generated by the private key.
If I expose the public key to the network, do I allow people to impersonate me and sign transactions even though they don't have Tr, Ts, or Tw? My understanding is no, that without those values you can't hash the transaction.
Subsequently, this leads me to wonder if the purpose of the address (besides identifying users) to obscure the public key so that the private key is at a less risk of being reversed? Or can the public key of any address be captured?
If the public key of any address can be identified on the network or off network (without actually being the owner of that key), how do you do that? Are there any resources on how to perform this that are computationally easy?1 -
instagrams "based on likes" is total bullshit, I don't like shit those suggestions like but if you scroll through your contacts you'll find those suggestions. Why not just say it like it is: "from your contacts or from your friends contacts"
3 -
and so today almost an hour ago I became the left one... I guess she went with the right one 😂😂😂... How many days have passed between my previous "relationship" post and this one ending... but in truth I was in the "babe" zone 😂😂😂
On to the next one, with the lessons from mistakes of the previous, hopefully she will last longer 🙏1 -
By starting the company I think I just dissolved, perfect opportunity to start a new one... Software company name suggestions anyone3
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Project manager, knows nothing/little about the project... Always sends new features to be added only to be removed 1hr later 😣😣, you have experienced nothing until you work under 1
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I once wrote a whole lot of classes with lots of functions and pushed them to the live server without testing... There were no errors 😎1
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Another great website error code fail (dumped its full error output to the website):
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/trac/web/api.py", line 436, in send_error
data, 'text/html')
File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 808, in render_template
template = self.load_template(filename, method=method)
File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 768, in load_template
self.templates = TemplateLoader(
File "/usr/lib/python2.4/site-packages/trac/web/chrome.py", line 481, in get_all_templates_dirs
for provider in self.template_providers:
File "/usr/lib/python2.4/site-packages/trac/core.py", line 78, in extensions
return filter(None, [component.compmgr[cls] for cls in extensions])
File "/usr/lib/python2.4/site-packages/trac/core.py", line 213, in __getitem__
component = cls(self)
File "/usr/lib/python2.4/site-packages/trac/core.py", line 119, in maybe_init
init(self)
File "/usr/lib/python2.4/site-packages/authopenid/authopenid.py", line 157, in __init__
db = self.env.get_db_cnx()
File "/usr/lib/python2.4/site-packages/trac/env.py", line 335, in get_db_cnx
return get_read_db(self)
File "/usr/lib/python2.4/site-packages/trac/db/api.py", line 90, in get_read_db
return _transaction_local.db or DatabaseManager(env).get_connection()
File "/usr/lib/python2.4/site-packages/trac/db/api.py", line 152, in get_connection
return self._cnx_pool.get_cnx(self.timeout or None)
File "/usr/lib/python2.4/site-packages/trac/db/pool.py", line 172, in get_cnx
return _backend.get_cnx(self._connector, self._kwargs, timeout)
File "/usr/lib/python2.4/site-packages/trac/db/pool.py", line 105, in get_cnx
cnx = connector.get_connection(**kwargs)
File "/usr/lib/python2.4/site-packages/trac/db/sqlite_backend.py", line 180, in get_connection
return SQLiteConnection(path, log, params)
File "/usr/lib/python2.4/site-packages/trac/db/sqlite_backend.py", line 255, in __init__
user=getuser(), path=path))
TracError: The user apache requires read _and_ write permissions to the database file /home/trac/morituri/db/trac.db and the directory it is located in. -
when you are using javascript frameworks and plugins in mvc and you have ReSharper, for your own safety and sanity exclude *.js
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Anyone here banks with ING? I got fed up with their main color, rgb(255, 102, 0), and wrote an add-on for Firefox to change it to black. Their website looks much more professional in black, not to mention easier on the eyes3
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I thought I had to VARCHAR in non-SQLite RDBMS. I was wrong. There is TEXT.
1. PostGres seems to work better with TEXT.
2. There is an ORM that forces VARCHAR (255) by default.
3. But you can go over the limit without throwing errors.1
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