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General Q&A about programming, scripting, software design & architecture, process, tools, testing, and more.
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Sometimes there are empty files named .gitkeep sprinkled around a repository. What are these files?
What would be the simplest (and most lightweight) way of getting email notifications of failures in kubernetes clusters. Mostly interested in failing pods, so notifying on certain kubernetes event ...
Below are the links to code for my project. HTML CSS JavaScript I have created Magnifying Image which was successful now I am trying to add multiple images which can be display in main produc...
First, a reminder to future self (the figure RFC 3986, Section 3. Syntax Components complemented with Section 3.2. Authority): The following are two example URIs and their component parts: ...
I had a curiosity about how much the experienced users wait for their questions to be answered on Stack Overflow and had written a query for it: SELECT YEAR(q.CreationDate) * 100 + MONTH(q.Creatio...
Many languages discourage global variables. Why is this?
In PHP why is using global like in the example below considered bad? $a = 1; class foo { public function bar() { global $a; // <-- Why is this considered bad? } } ...
Having some trouble with giraffe-template on Mac M1, so decided to set up a Giraffe project manually. Started following the Doing it manually section of the Giraffe README, but got stuck right away...
Many older projects (i.e., older than 5 years) provide instructions to the Paket .NET dependency manager (e.g., Suave), so I started digging into it, got confused, then gave up for while because er...
Suppose someone has the requisite knowledge and skillset to contribute to a FOSS project, they have the free time to do so and they are aware of the project. Yet, they decide not to contribute. Thi...
I heard rumours that the strcpy function is dangerous and shouldn't be used. Supposedly it can be exploited to create buffer overflows somehow. And indeed when I compile my C code in the admittedl...
A jinja template expression starts and ends with double curly brackets, which the templating engine consumes. But what if you need a single pair of curly brackets left in the output? Something lik...
I have a flat list where each item is the key and value for an attribute. I want to transform this into a nested list where each attribute is a sublist. Example input: [ "attr1 apple 1", "a...
ChromeOS Linux: Debian, how do I install Android SDK manager via command line? I wanted to try this repo https://github.com/JetBrains/compose-multiplatform/tree/master/examples/imageviewer and I g...
When I do this in a shell: $ /bin/sh -c 'echo hello world' hello world it's my understanding that I'm running a process with argv = {"/bin/sh", "-c", "echo hello world"}. That is, the quotes c...
I tried to check info bash but only got a copy of the man page. This is when I learned that I could apt install bash-doc to get the "full" Bash manual. After checking both the info pages and the m...
SAML service provider (and other types as well) metadata XMLs are full of prefixes like md: and ds:. What do these mean? To illustrate my point, here's a sample metadata file from Wikipedia (CC-BY...
How to log first n lines of a stack trace in Java?
How to delete a branch from a remote in git? E.g. maybe you had this branch locally too, but you deleted it already according to this question. Now you want to get rid of the corresponding remote ...
When documenting a struct with attributes, where does the docstring go? Before or after the attribute(s)? Option 1: /// Does it go here? #[derive(Deserialize, Debug)] pub struct Metadata { ...
When developing a rust program you build and run using cargo run. However you cannot just append arguments to that as they will be caught (and likely rejected) by cargo itself. So how to pass argum...
C offers two different styles when it comes to structs (and union/enum too). Either declare them using a struct tag only ("struct tag style"): struct my_type { ... }; struct my_type x; Or ...
I'm completing the rustlings exercises as part of self-teaching Rust. While working on the third iterators exercise, I solved the exercise but don't quite understand why my solution works. Specifi...
I wish to add a property with the date of the current Git commit to the assembly info. From my .csproj: <Exec Command="git -C "$(ProjectDir)." log -1 --pretty=format:%ad" ...
According to this article: Since encryption is two-way, the data can be decrypted so it is readable again. Hashing, on the other hand, is one-way, meaning the plaintext is scrambled into a uniqu...
What I would like to do I would like to try to build a language model 100% from scratch if possible, for a learning experience. That means no external libraries and no pre-curated datasets. It ...
The Zip class from Data.Zip requires an implementation of Semialign: class Semialign f => Zip f In my mind: Zip takes the intersection of two shapes. Semialign takes the union of two sha...
I believe when you sign in with Google, the web application running in your browser calls a command to request the Google Sign In page, and includes a “callback URL” as a parameter in that HTTP req...
I want to add the ability to "Sign in with Google" into a Ruby on Rails web application, that is using Devise to handle authentication. How do I do that?
Is there a way to make Swashbuckle.AspNetCore generate a Swagger exclusiveMinimum range validation for a model property? There doesn't seem to be any way to do this with the attributes recognized ...
So I googled some on how to make a case insensitive criteria query but could not find the solution very easily. So I basically have code that looks like this: ... query.criteria("fieldName").con...
My question relates to Spring-boot-loader v2.6.15. For the purposes of this question, I will refer to Spring's custom JarFile class as CustomJarFile to avoid confusion. Context I am reusing so...
To protect against dictionary and rainbow table attacks it is well known that passwords should be salted before hashing. The salt (unique to each password) gets stored with the hash, often in the s...
The last few years, PHP has basically exploded with lots of modern language constructs that makes the life easier. But local constants are still missing, and I find that very strange. I have found...
Suppose I have some code like: filename = "bad_dir" print(f"File not found: {filename}.") raise(FileNotFoundError) When the exception isn't caught, the stack trace is printed at the end of ...
I have a Python script that needs to access some data (or configuration) file in its very own folder. For example, say script.py does something like this: with open('data.txt') as file: data ...
For example, given a mergeErrors function where input is always a list of Error strings, let es = [ Error 1; Error 2; Error 3 ] let mergeErrors<'a> (errors: Result<'a,int> list) : R...
I have created a simple bus topology connecting 2 switches and a router, with each switch connected to their respective end devices through ordinary star topology. The switch model used was 3560-24...
I have an Android 10 device where the OS is unlocked but the bootloader is not. I can't obtain the unlock code through the normal channels because of bureaucratic incompetence. Given that the devi...
In a JSON schema, do the required properties need to be a subset of properties? E.g. is this a valid schema, even though cookies isn't mentioned in properties? { "type": "object", "properti...
I'm trying to flatten a repository of Python code into a Markdown file where each file is formatted like: relative/path/to/file1.py # contents of file1.py I'm using this command: find . -name...
The Null Values article in the F# Language Reference show an example that uses it, but it does not explain what it does exactly. You can use the following code to check if an arbitrary value is ...
The F# language guide (see Signatures article) has a very sparse definition of what a "sealed" type is: Attribute Description [<Sealed>] For a type that has no abstract me...
I ran some Python code and it crashed with ModuleNotFoundError. What is the general approach for dealing with these situations?
The current project I am working on consists of a bunch of microservices (Web APIs) accessible only internally using Entra ID (formerly Azure ID). To simplify the development, all services expose ...
The answer provided in the How to set the cell color to a user defined value using NPOI from F#? thread solves the problem of how to set the right properties using F#, but it uses a new ICellStyle ...
As far as I can tell (from F# at least), cell can only be colored using predefined NPOI.SS.UserModel.IndexedColors. From the available methods / properties, val it: ICellStyle = NPOI.XSSF.UserM...
Taking the example from this Stackoverflow question: type Vector2D(dx : float, dy : float) = static let zero = Vector2D(0.0, 0.0) static let onex = Vector2D(1.0, 0.0) static let ...
I'm writing exception handling around a call to Socket.AcceptAsync in a loop. One of the exceptions it's documented to throw is SocketException, but the documentation is vague: An error occurred...
--- Here is the error message. Traceback (most recent call last): File "c:\Users\19185\Documents\GitHub\Chatty\Chatty\one_.py", line 3, in import azure.cognitiveservices.speech as speechsdk Mo...
