Re: [PATCH TOOLS 0/2] convert main() from C to Rust

[Thomas Bertschinger <tahbertschinger@gmail.com>]

On Mon, Jan 15, 2024 at 12:32:23PM -0500, Kent Overstreet wrote:
> I think there's some more rearraging we could do - it'd be cleaner if we
> moved the C sources out of the top level directory, perhaps to c_src,
> and then moved everything in rust-src/ to the toplevel.
> 
> Top level directory is getting a bit crowded, and then the new bcachefs
> binary won't be quite so out of the way; I frequently build and run
> without installing when I'm debugging.

I agree this makes sense. I'll work on a v2 that does this.

Thoughts on keeping Make as the top-level build tool vs. using Cargo? I
am still fairly new to Rust/Cargo so I'm not sure how easy it would be
to replicate all of the Makefile targets in Cargo. It does appear to be
possible to use Cargo to invoke gcc to build the C library.

I can see three approaches:
- keep Make as the primary build tool
- hybrid: use Cargo for source code building but keep the Makefile around
  for the supplemental targets like "make doc", "make rpm", etc.
- use Cargo for everything (not sure if this is easy / possible, but I
  could look into it if desired)

I'm leaning towards keeping Make as the primary build tool for now and
perhaps a future patch can move towards using Cargo. But other opinions
are welcome.

- Thomas Bertschinger