hatch: Problem with global `tool.hatch.build` table and sdist

Hello, I’ve encountered a problem while trying to build a project for sdist.

pyproject.toml:

[project]
name = "foo"
description = "foo != bar"
version = "0.1.4"

[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"

[tool.hatch.build]
packages = ["src/foo"]

Structure:

testprj/
├── pyproject.toml
├── .venv
├── src/
│   └── foo/
│       ├── __init__.py
│       └── __main__.py
└── dist/

Then I build the package: hatch build -t sdist -c.

When I run (within another env) pip install '<...>/dist/foo-0.1.4.tar.gz' pip reports the foo package as installed:

Package    Version
---------- -------
foo        0.1.4
pip        23.1.2
setuptools 65.5.0

However running python -c "import foo;print(foo)" throws an error:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'foo'

and if I check site-packages/ there’s only foo-0.1.4.dist-info/ without the packages itself.

I figured out how to make it work, I just need to change the config a little:

[project]
name = "foo"
description = "foo != bar"
version = "0.1.4"

[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"

-[tool.hatch.build]
+[tool.hatch.build.targets.sdist]
packages = ["src/foo"]

if I then install the package and run python -c "import foo;print(foo)", it works as expected.

I mark it as a “problem” because I’m not sure whether it’s a bug or not. I think it’d be nice if the global table worked because my project layout is the same across all the targets I may use, so there’s no reason for me to duplicate that information for each target.