Mark Juggurnauth-Thomas

This is a great idea. I already had a similar idea where a static banner could be added to the file which gets shown at the top. I was anticipating...

If you think an escape sequence might be useful (e.g. because you want a template to print it out to get the right line), then perhaps we could use an...

Sapling uses the `rust-cpython` crate to interface with Python. That crate hasn't had support for Python 3.12 implemented yet (see https://github.com/dgrunwald/rust-cpython/issues/294), so Python 3.12 isn't supported in Sapling either.

`String::strip_prefix` was added in 1.45 but our MSRV is 1.41. 1.45 is nearly 5 years old at this point, so perhaps we could consider bumping the MSRV. I think the...