apt-alias

#!/usr/bin/env python3

import argparse
import shutil
import subprocess

from path import Path, TempDir


def create_dummy_package(alias_target: str, alias_source: str, keep_temps: bool) -> Path:
    # Create the output directory if it doesn't exist
    output_dir = Path.home() / ".aliased-debs"
    output_dir.makedirs_p()

    # Prepare the output deb file name
    output_deb_name = f"{alias_target}-aliasing-{alias_source}.deb"
    output_deb_path = output_dir / output_deb_name

    # Create a temporary directory for equivs files using path.TempDir
    with TempDir(suffix=f"_equivs_{alias_target}_to_{alias_source}") as temp_dir:
        control_file = temp_dir / "control"

        # Write the control file
        control_file.write_text(f"""Section: misc
Priority: optional
Standards-Version: 3.9.2

Package: {alias_target}
Provides: {alias_source}
Description: Dummy package to satisfy {alias_source} dependency with {alias_target}
""")

        # Build the dummy package using equivs
        subprocess.run(["equivs-build", control_file], check=True, cwd=temp_dir)

        # Find the generated .deb file
        generated_deb = next(temp_dir.glob("*.deb"))
        shutil.copy(generated_deb, output_deb_path)

        if keep_temps:
            print(f"Temporary directory kept at {temp_dir}")
        else:
            print(f"Temporary directory cleaned up: {temp_dir}")

    print(f"Dummy package created at: {output_deb_path}")
    return output_deb_path


def main():
    parser = argparse.ArgumentParser(
        description="Create a dummy Debian package for dependency aliasing."
    )
    parser.add_argument("alias_target", help="The target package name to alias.")
    parser.add_argument("alias_source", help="The source package name to be aliased.")
    parser.add_argument("-k", "--keep-temps", action="store_true", help="Keep temporary files.")

    args = parser.parse_args()

    create_dummy_package(args.alias_target, args.alias_source, args.keep_temps)


if __name__ == "__main__":
    main()