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Posts by matthewsnyder
It sounds like you have a Java formatter configured (by default?) and VSC is applying it to your code automatically (on save?). How code is formatted If your only gripe is these specific stylisti...
I have a git repository with some submodules. When the submodule repos get new commits on the remote, how can I pull them all?
New LLMs like ChatGPT are now creating competition with Q&A sites like Codidact and StackOverflow. Moreover, this is parasitic: LLMs get "boosted" by Q&A sites because they can use them for...
My take on this: Q&A sites used to fill two distinct roles, but only one of these (the more boring one that doesn't matter anyway) is usurped by LLMs. The interesting one is not yet in danger o...
In Python, multiprocessing is easy to do if you follow a "list projection" paradigm. Say you want to take a list of inputs X and apply some function f to every x_i, such that y_i = f(x_i) and the y...
When I open VS Code inside a project dir, it reopens all the tabs that were open last time, and re-expands all the folders that were unfolded last time. I find this annoying. Usually, when I close...
The ideal way is to separate the upstreamable and non-upstreamable changes. For example you could maintain two branches: public and private. All upstreamable changes are cherry picked to public an...
In VS Code, is it possible to run Python code on the text being edited? I realize that I can save my text, create a .py file, switch to a terminal (including VS Code's own terminal) and run the .p...
I am writing some scripts that operate on emails in Maildir format. A lot of things are easy in this format, but the filenames are absolutely incomprehensible. For example, one script moves mails ...
When printing Markdown text to the terminal, how can I get a bit more formatting so it looks nicer? I realize that this is a bit of a contradiction, since terminals generally use only one font. Bu...
For completeness, I'll add some more obscure ways: If your goal is to simply move some changes from one branch to another, you can also use git rebase and git cherry-pick. These give you more cont...
When you try to do a privileged systemd operation without the privilege, you get an escalation prompt: $ systemctl stop docker ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ==== ...
I am trying to generate my own root CA certificate. Context My goal is to sign an intermediate CA with this certificate, and then install the intermediate CA on my own client machines. The interm...
PEP20 aka the Zen of Python has a statement: Namespaces are one honking great idea -- let's do more of those! What exactly are we supposed to "do" according to this? Is it saying we should h...
VS Code supports regex search, but the search/replace is UI is just a tiny dialog box. It's okay if you know regex well and the expression is not complex, but when trying to apply complicated expre...
When you do: cd /some/path code . VS Code opens with that location shown in the "Explorer" sidebar. However, the state of the file tree and the currently open files will be the same as what wa...
I don't think the question is trivial. Maven is very complex and confusing at first. The documentation is also quite something. It's not easy to figure out what's going on unless you already know. ...
You can try to break up the query into CTEs, and then see if any of the individual CTEs are unusually slow. I am guessing the query is not just one select, but probably has subqueries, window func...
Is it possible for a Python program to send itself in the background? For example, on Linux you can do nohup some_cmd & and any program will run in the background. Some programs also support s...
I know that 1 is sometimes called a pure function - although apparently a pure function must also not vary when the input is constant. By negation, the other kind are called impure functions, alth...
Create a hash map and precalculate the sort key in it: // Set up: Create mock input let u = ['4', '16', '8', '2', '6']; function expensive_key_fn(x) { console.log("Doing expensive operation...
This is in the docs. To paraphrase: Used for abstract methods that must be overridden in subclasses When the implementation is still WIP, but you want to leave a placeholder for the method name...
print() normally adds text to STDOUT, it does not erase existing text. https://linux.codidact.com/posts/289869 describes various ways of doing the overwrite in shell scripts. How can you do this ...
Is there some sane way to allow Python to import from subfolders in projects that don't have a package? I have many Python programs that I implemented as Python files inside a directory, without a...
I like using NATURAL JOIN in Snowflake, because I find it more elegant than explicit join clauses. However, it appears that the natural join behaves similar to an inner join, in that null values o...
