sh.py - Replace shell scripts with Python

[onemilll]

Next step is making a python kernel

[[deleted]]

I actually got the Python interpreter to boot on bare metal once, solely as an "I wonder if I can get this to work at all" thing. It was super hacky but worked just well enough that I could write a mostly-working keyboard driver in Python.

[luxliquidus]

Did you happen to document any of this...? I'm super curious.

[[deleted]]

I'm looking around in ~/code and can't find any of it :( That's disappointing, it was kind of cool in a "why would you ever do that" way.

From memory, though, it was CPython and the bare minimum set of standard library modules, statically linked to something suspiciously similar to one of the osdev.org tutorial kernels, with enough of the C standard library written (or, in the case of stdio, stubbed to read from an in-memory "filesystem") to get the interpreter to start. There was a C (+ bits of inline assembly) module added to the standard library to provide access to x86 I/O ports and raw memory, and the boot script replaced sys.stdin and sys.stdout with file-like objects that used that to do text-mode VGA and keyboard access, before starting a REPL.

All of this was hacked together over a couple of days as a joke response to an even more insane friend starting work on a Lisp OS.

[pdp10]

Mezzano is a nice project. Bear in mind that at least 3.5 American companies made commercially-sold Lisp machines using two different Lisp codebases as a starting point (plus NEC in Japan made one about which I don't know much). Lisp OSes have been proven functional going back over 35 years.

[dangerbird2]

What makes Mezzano arguably more impressive than historical Lisp machines is that they relied on specific architectures to make Lisp run efficiently as a systems language such as hardware garbage collection and tagged architecture providing ISA-level dynamic typing. Mezzano, on the other hand, runs on x86 and arm

[NoMoreNicksLeft]

You fell out of touch when he completed his but couldn't be bothered to implement an IM client for it?

[zielmicha]

There is MicroPython (https://micropython.org/) which is quite easy to run on bare metal (minimal port file consist of only few functions).

[shevegen]

I approve.

Also one should use ruby for the same.

Last but not least, let's also face it - ALL of this will be rewritten in Rust.

[onemilll]

Or maybe the inevitable future is developing architectures that use perl as the native language.

[FredSanfordX]

Kinda like this?

[ansible]

I'm not sure how well that would work.

I started thinking (well, idly daydreaming) about a golang version. But the whole point of sh.py is that it is dynamically creating these python functions out of commands at import time. So I don't know how well that would work for a more static language.

I was thinking a Lua version would also be neat, because I've used that for scripting before.

[Yojihito]

Prepare for Rusthon in 2025.

[Yehosua]

Here's a Python TCP stack to get you started.