Programmatic patches (transform commits)

Is there a way to commit a transform script that programmatically applies file changes rather than committing the file changes directly?

e.g. Imagine in a large repository that a contributor wants to replace certain instances of "abc" with "xyz". A transform script might be like the following:

```sh #!/bin/sh

sed -i 's/abc/xyz/g' $(find .) ```

Applying such a "programmatic patch" will potentially edit many files. Doing a code review on such a change is error prone due to authors resolving merge conflicts manually, etc. while reviewing the patch in some circumstances is much easier (especially tools for specifically this type of file transformations are used to make it easy to parse code, traverse abstract syntax trees, make edits, etc.).

Does anything like this exist today? Depending on the implementation I could see there being cross-platform support challenges but maybe there is something that already exists to assist with this which I can learn about.

As an alternative to making this part of Git I can see tools like GitHub Actions being used to look for commits of "programmatic patch" files, pick those up, run them, and commit and push the change but having a solution for this as part of Git itself would make it independent of GitHub and more reusable, etc.