On Wed, Jan 10, 2024 at 1:57 PM Dragan Simic [off-list ref] wrote:

Thus, Git should probably follow the same approach of not converting the
already existing code

I disagree with this.  I saw significant performance improvements
through converting some existing Git code to Rust.  Granted, it was
only a small amount of code, but the performance benefits I saw
suggested we'd see more by also doing similar conversions elsewhere.
(Note that I kept the old C code and then conditionally compiled
either Rust or C versions of what I was converting.)

Further, I found a really old bug from this effort as well[1], and I
find it extremely unlikely that I would have found that bug otherwise.
So, converting to Rust can even improve our existing C code.

, but frankly, I don't see what would actually be
the "new leafs" written in Rust.

In addition to some of the examples Junio mentioned elsewhere, I think
new toplevel commands, like git-replay, would qualify.


[1] Yeah, I really need to dig the patch out and send it in.  I'll do
so shortly.