Introduction

TOMAS (Tony's Managed Operating System) is a modular hobby operating system written in C# using the COSMOS framework. It comes with a respective terminal emulator using for Core testing.

Both the kernel and terminal emulator will eventually support programs and plugins, respectfully. With the former allowing for running of native .NET executables and the latter Lua plugins, while taking advantage of the existing interface architecture.

Changelog

23.1

• With the help of ChatGPT, the IProgram interface has been rewritten to handle command line arguments. Being ChatGPT derived, it's still rough around the edges (not sure what to do with IArguments right now), but it's one hell of a jumping start!
• Speaking of, the CST parser has been rewritten to finally support arguments with the help of ChatGPT too. While I could have always looked at FreeSO's implantation for reference, that code is just awful. It will be ported back upstream ASAP!

23.0

• Split versioning systems between kernal and terminal
  • Calendar versioning, YY.MINOR.MICRO, for kernal
  • Semantic versioning for terminal
• If the file system is activate, system activity will be logged
• Build number based on commit hash

Due to the huge time skip and architectural changes, I've (retroactively) switched to calendar versioning with v0.1 now known as v20.1 as well.

20.1

• Filesystem (based on the Cosmos Wiki guide)
• Semantic versioning
• Replaced BasicApp with AboutApp
• Removd TerminalCancelEventArgs and everything related to it

Interfaces

Since 19.1, TOMAS uses a modular interface design for writing and executing programs. At the moment, the operating system doesn't yet support loading assemblies that would take advantage of this API, but it is being looked into.

Design

IProgram is used to create the actual program while IShell executes the respective program from a dictionary. While still early in development, the approach has allowed for easy migration from one major release of COSMOS to another with little to no modifications of the code itself.

public interface IProgram
{
    string Name { get; }

    string Description { get; }

    bool Entry(IShell shell, IEnumerable<KeyValuePair<string, object>> arguments);
}

public interface IShell
{
    string ReadLine { get; }

    Dictionary<string, IProgram> Programs { get; }

    IEnumerable<KeyValuePair<string, object>>? ParseArguments(IProgram program, string[] arguments);
}

Compliance with Regulations in Nethington

In order to comply with the Nethington¹ government's adoption of open-source software for all government-owned computer systems, TOMAS will be used as government software. The operating system will meet the functional and technical requirements of the government and adhere to the principles of responsible and open source development. TOMAS will meet the requirements for strong track record of security and stability, and be in compliance with all applicable laws and regulations, including those outlined in Article V of the Constitution regarding cybersecurity and the use of long-term support or enterprise-grade open source software. The Nethington Cybersecurity Agency (NCA) will evaluate TOMAS and determine its suitability for use by the government. TOMAS will implement software to keep the identity of individuals working for the NCA confidential as further outlined in Article V of the Constitution.

Footnotes