For https://privacy.sexy/: Split privacy-script.bat into individual batch scripts

PrivacyScriptSplit.py

# https://stackoverflow.com/a/7406369
def make_filename_safe(filename):
    keepcharacters = (' ','.','_')
    return "".join(c for c in filename if c.isalnum() or c in keepcharacters).rstrip()

def split_privacy_script(path):
    def new_item():
        return {
            "title": "",
            "contents": ""
        }
    
    item = None
    items = []

    def append_item():
        nonlocal item
        nonlocal items
        if not item:
            item = new_item()
            return

        item["contents"] = item["contents"].strip("\n")
        if item["contents"]:
            if not item["title"]:
                item["title"] = f"Untitled {hash(item['contents'])}"
            items.append(item)
            item = new_item()

    # For each line in "privacy-script.bat"
    with open(path, "r") as f:
        for line in f:
            line = line.strip("\n")
            if line.startswith(":: "):
                is_separator = line[3:] == ("-" * len(line[3:]))
                if is_separator:
                    append_item()
                    continue
                if not item:
                    continue
                if not item["title"]:
                    item["title"] = line[3:].strip("- ")
                    continue
            if not item:
                continue
            item["contents"] += line + "\n"

    return items

def save_split_privacy_script(path_in, path_out):
    import os
    import shutil

    # Recursively delete directory if it exists
    if os.path.exists(path_out):
        shutil.rmtree(path_out)

    # Ensure directory exists
    os.makedirs(path_out)

    for item in split_privacy_script(path_in):
        filename = make_filename_safe(item["title"])
        with open(f"{path_out}/{filename}.bat", "w") as f:
            f.write("@echo off\n\n" + item["contents"])

def main():
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument("in", help="Path to privacy-script.bat")
    parser.add_argument("out", help="Path to output directory")
    args = parser.parse_args()
    
    path_out = args["out"]
    path_in = args["in"]
    
    save_split_privacy_script(path_in, path_out)

if __name__ == "__main__":
    main()