Cargo path with pyproject.toml

[choco]

Hello,
my project has a structure similar to this

- crate_name
 |- src
 |- Cargo.toml
 |- python
   |- build.sh
   |- pyproject.toml
   |- tests

The build.sh just executes maturin

maturin build --release --manifest-path ../Cargo.toml

But I'd like to use pyproject.toml for this.
Unfortunately I'm unable to set the manifest-path option from there. Is this something possible? I tried something like this but it doesn't work.

[build-system]
requires = ["maturin"]
build-backend = "maturin"

[tool.maturin]
cargo-extra-args = "--manifest-path ../Cargo.toml"

[konstin]

Could you move the pyproject.toml a directory up and run maturin in crate_name instead of python?

[choco]

That's the issue, I actually don't want to move it up there :( and would like to keep things separated.

[konstin]

For the two cases where you actually need a pyproject.toml (installing from an sdist and installing from git or a directory), the pyproject.toml needs to be in the project root anyway, so I only want to support that case.

[choco]

Seems fair, thanks for your help and the quick support :)

[anthrotype]

I wish to package a third-party crate that I clone as git submodule and thus I can't/don't want to modify. So I'd like to have my pyproject.toml file in a different directory from the upstream Cargo.toml, and specify a manifest_path in my pyproject.toml [tool.maturin] section.

[messense]

@anthrotype Opened #781

[anthrotype]

@messense thank you!