On Wednesday, 4 February 2026 at 21:46:15 UTC, Andrea Fontana
wrote:
Hi everyone,
I’ve put together a small, lightweight library called
pacchettino. It’s a simple file-based queue system designed for
cases where you need to distribute workloads across multiple
threads or processes without the overhead of a full-blown
message broker.
The API is designed to be very straightforward.
It’s nothing "groundbreaking" but I found myself rewriting this
logic too often, so I decided to package it. If you need a
quick way to sync tasks between different D processes via the
filesystem, give it a try!
Imagine you have a web server (eg: serverino) where users
upload files to be processed (like converting a video or
parsing a huge CSV). You don't want to make the user wait while
your server does the heavy lifting, and you certainly don't
want to lose the file if the process is terminated.
With pacchettino, your web server just drops the file into a
"queue" folder and immediately tells the user "we're working on
it!". Meanwhile, a separate process (not the server) picks up
these files one by one and processes them.
Your web server can still "peek" at the queue to tell the user
exactly what’s happening whether the file is still waiting,
currently being processed.
Zero-dependencies / process and thread safe / crash recovery /
persistent.
Very nice! I like the simplicity! :)
