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#!/usr/bin/env python
"""Generate requirements/*.txt files from pyproject.toml."""
import sys
from pathlib import Path
try: # standard module since Python 3.11
import tomllib as toml
except ImportError:
try: # available for older Python via pip
import tomli as toml
except ImportError:
sys.exit("Please install `tomli` first: `pip install tomli`")
script_pth = Path(__file__)
repo_dir = script_pth.parent.parent
script_relpth = script_pth.relative_to(repo_dir)
header = [
f"# Generated via {script_relpth.as_posix()} and pre-commit hook.",
"# Do not edit this file; modify pyproject.toml instead.",
]
def generate_requirement_file(name: str, req_list: list[str]) -> None:
req_fname = repo_dir / "requirements" / f"{name}.txt"
req_fname.write_text("\n".join(header + req_list) + "\n")
def main() -> None:
pyproject = toml.loads((repo_dir / "pyproject.toml").read_text())
generate_requirement_file("default", pyproject["project"]["dependencies"])
for key, opt_list in pyproject["project"]["optional-dependencies"].items():
generate_requirement_file(key, opt_list)
if __name__ == "__main__":
main()
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