pkglint suggestion: check pyproject.toml against pkgsrc-expressed dependencies

Recently I came across a py-foo where it depends on py-bar (does import)
but where bar wasn't in the pyproject.toml.  Also, I frequently find
that pkgsrc (my packages anyway) are missing the expression of deps that
are in pyproject.toml.

I know url2pkg has some ability to examine pyproject.toml and create
DEPENDS lines.

It would be Really Cool if pkglint:

  parsed pyproject.toml and obtained dependency expressions for build
  tools, for runtime deps, and for test

  parsed Makefile for those TOOL_DEPENDS, DEPENDS, and TEST_DEPENDS.

  compared them, and created as output somehow the lines that are
  missing or replacements for those that are wrong

This would ease updates by catching upstream bumps in versions, new
deps, and no-longer-used deps.


I have no idea how hard this is, but I'm not letting that keep me from
suggesting it!