app.py

import os

def safe_size(root):
    total = 0

    for dirpath, dirnames, filenames in os.walk(root, followlinks=False):
        for f in filenames:
            try:
                path = os.path.join(dirpath, f)

                # skip broken symlinks just in case
                if os.path.islink(path):
                    continue

                total += os.path.getsize(path)
            except OSError:
                continue

    return total


paths = [
    "/data/matches",
    "/data/by-language",
    "/data/image-shards"
]

for p in paths:
    size = safe_size(p)
    print(f"{p}: {size / 1024**3:.2f} GB")