Dump directory of files as text with useful file attributes for backup

fileattrs.py

#!/usr/bin/env python

import os
from datetime import datetime
from hashlib import sha1


OMITTED_FILES = set([".DS_Store"])

def sha1file(filename):
    sh = sha1()
    with open(filename, "rb") as handle:
        while True:
            buf = handle.read(1024 * 1024)
            if not buf:
                break
            sh.update(buf)
    return sh.hexdigest()


def main():
    for root, _, files in os.walk('.'):
        for f in set(files) - OMITTED_FILES:
            fullpath = os.path.join(root, f)
            if os.path.isfile(fullpath):
                yield {
                    "name": os.path.normpath(fullpath),
                    "size": os.path.getsize(fullpath),
                    "sha1": sha1file(fullpath),
                    "date": str(datetime.fromtimestamp(os.path.getmtime(fullpath))),
                }


if __name__ == '__main__':
    for d in main():
        print(d)