generate_credits.py

#!/usr/bin/env python3
import os
from string import Template


def main():
    template = Template((
        '- "[$files]($source)" by **$author** licensed'
        ' under [$license](./LICENSES/$license.txt)\n'
    ))

    deps = {}
    section = None

    with open(".reuse/dep5", "r") as file:
        for line in file:
            if line.startswith('# '):
                section = line[len("# "): -1].lower()

            if section is None:
                continue

            if line.startswith("Files: "):
                if section not in deps:
                    deps[section] = []

                deps[section].append({"files": line[len("Files: "):-1]})

            elif line.startswith("Copyright: "):
                if section not in deps:
                    deps[section] = []

                date_author = line[len("Copyright: "):-1].split(" ")
                date_author.pop(0)
                deps[section][-1]["author"] = " ".join(date_author)

            elif line.startswith("License: "):
                if section not in deps:
                    deps[section] = []

                deps[section][-1]["license"] = line[len("License: "):-1]

            elif line.startswith("Source: "):
                if section not in deps:
                    deps[section] = []

                deps[section][-1]["source"] = line[len("Source: "):-1]

    if deps:
        with open("CREDITS.md", "w") as file:
            file.writelines("# Credits\n\n")

            for key, value in deps.items():
                file.writelines(f"## {key.title()}\n")
                for dep in value:
                    file.writelines(template.substitute(**dep))
    else:
        if os.path.exists("CREDITS.md"):
            os.remove("CREDITS.md")


if __name__ == "__main__":
    main()