import os
from time import sleep
import stat

def is_corrupt(path):
    f = None
    try:
        mode = os.stat(path).st_mode
        if stat.S_ISREG(mode):
            f = open(path, "rb")
            f.read()
        else:
            print("skipping non-regular file at", path)
    except OSError as e:
        sleep(4) #time to remount
        if f is not None:
            f.close()
        return True, e

    if f is not None:
        f.close()
    return False, None

broken_file = open("/Users/Jack/Desktop/broken.txt", "a")
okay_file = open("/Users/Jack/Desktop/accessible.txt", "a")

for root, subdirs, files in os.walk("/Volumes/Macintosh HD"):
    for item in files:
        path = os.path.join(root, item)
        corrupt, e = is_corrupt(path)

        if corrupt and e and e.errno == 6:
            print(path, sep="", file=broken_file)
            broken_file.flush()
            print("****", path, "is broken")

            sleep(1)

            #wait for remount
            while not os.path.exists("/Volumes/Macintosh HD"):
                continue
        else:
            print(path, file=okay_file)
            okay_file.flush()

broken_file.close()
okay_file.close()