What does HackerNews think of codemod?

Codemod is a tool/library to assist you with large-scale codebase refactors that can be partially automated but still require human oversight and occasional intervention. Codemod was developed at Facebook and released as open source.

Language: Python

Ohm: A library and language for building parsers, interpreters, compilers, etc. | Oct 2023

This is new to me, sounds interesting!

I once used Codemod [0] to migrate an old JS codebase. Would this be a use case for Ohm as well?

[0] https://github.com/facebookarchive/codemod

Automating Dead Code Cleanup | Oct 2023

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Here you go https://github.com/facebookarchive/codemod

If PEP 703 is accepted, Meta can commit three engineer-years to no-GIL CPython | Jul 2023

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That differs but is a reasonable understanding. I’m instead referring to automations that perform large scale refactoring as handled by Facebook, who would be contributing to this effort.

https://github.com/facebookarchive/codemod

It sounds like what you are describing is what’s known as poly fills which convert code into a variant that maximizes function across implementations which isn’t really applicable here.

If PEP 703 is accepted, Meta can commit three engineer-years to no-GIL CPython | Jul 2023

https://github.com/facebookarchive/codemod

Ironically this is also from Meta which would be contributing to this space increasing the expertise of achieving this result.

Python 2 removed from Debian | Jan 2023

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A codemod is an automated refactor. Codemods are typically done by writing scripts that manipulate the AST of code in files or by writing a regex to find and replace.

The name originates from an internal script at Facebook called codemod. It had a public open source fork if you are curious.

https://github.com/facebookarchive/codemod