Show direct dependencies with uv pip compile

[jmbond]

Hello! Have you considered adding # via ... for direct dependencies as is currently done by pip-tools pip-compile?

Consider the following pyproject.toml:

[project]
name = "uv_test"
dynamic = ["version"]
dependencies = ["pandas", "numpy"]

$ uv pip compile -o requirements.txt pyproject.toml
Resolved 6 packages in 10ms
# This file was autogenerated by uv via the following command:
#    uv pip compile -o requirements.txt pyproject.toml
numpy==1.26.4
    # via pandas
pandas==2.2.1
python-dateutil==2.9.0.post0
    # via pandas
pytz==2024.1
    # via pandas
six==1.16.0
    # via python-dateutil
tzdata==2024.1
    # via pandas

$ pip-compile -o requirements.txt pyproject.toml
#
# This file is autogenerated by pip-compile with Python 3.12
# by the following command:
#
#    pip-compile --output-file=requirements.txt pyproject.toml
#
numpy==1.26.4
    # via
    #   pandas
    #   uv_test (pyproject.toml)
pandas==2.2.1
    # via uv_test (pyproject.toml)
python-dateutil==2.9.0.post0
    # via pandas
pytz==2024.1
    # via pandas
six==1.16.0
    # via python-dateutil
tzdata==2024.1
    # via pandas

As you can see, pip-compile adds # via uv_test (pyproject.toml) for the direct dependencies. I think it is useful to add this information to the requirements.txt file.

$ uv --version
uv 0.1.13
$ pip-compile --version
pip-compile, version 7.4.0

[charliermarsh]

I believe this is the same as #1343 (just with a pyproject.toml instead of a requirements.txt), gonna merge into that issue.

[jmbond]

You are indeed correct @charliermarsh. Sorry for not finding that issue.

[charliermarsh]

No prob.

[charliermarsh]

Supported in the next version via #3269.