import os,os.path,stat

info = []
archive = None
total_keys = 0
total_dirs = 0

def collect_info(path,i):
    global total_dirs,total_keys
    s = os.stat(path)
    if stat.S_ISDIR(s.st_mode):
        total_dirs += 1
        l = os.listdir(path)
        n = len(l)
        if i==len(info):
            info.append(n)
        elif n>info[i]:
            info[i] = n
        i += 1
        for f in l:
            collect_info(os.path.join(path,f),i)
    else:
        total_keys += 1

def print_info():
    i = 0
    for n in info:
        print "Max keys at level %2s: %7s" % (i,n)
        i += 1
    print "Total number of dirs: %7s" % total_dirs
    print "Total number of keys: %7s" % total_keys
    fd = os.popen("du -csh %s" % archive,"r")
    s = fd.read()
    fd.close()
    s = s.split()[0]
    print "Disk footprint      : %7s"  % s

if __name__ == '__main__':
    import sys
    from optparse import OptionParser
    parser = OptionParser(usage="usage: %prog ARCHIVE")
    (options, args) = parser.parse_args()
    if len(args) != 1:
        print sys.stderr, "expected exactly 1 positional argument"
        sys.exit(1)
    archive = args[0]
    collect_info(archive,0)
    print_info()
    sys.exit(0)