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 shared-testcase

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#! /usr/bin/env python3

# Print the product of age and size of each file, in suitable units.

#

# Usage: byteyears [ -a | -m | -c ] file ...

#

# Options -[amc] select atime, mtime (default) or ctime as age.

import sys, os, time

from stat import *

def main():

# Use lstat() to stat files if it exists, else stat()

try:

statfunc = os.lstat

except AttributeError:

statfunc = os.stat

# Parse options

if sys.argv[1] == '-m':

itime = ST_MTIME

del sys.argv[1]

elif sys.argv[1] == '-c':

itime = ST_CTIME

del sys.argv[1]

elif sys.argv[1] == '-a':

itime = ST_CTIME

del sys.argv[1]

else:

itime = ST_MTIME

secs_per_year = 365.0 * 24.0 * 3600.0 # Scale factor

now = time.time() # Current time, for age computations

status = 0 # Exit status, set to 1 on errors

# Compute max file name length

maxlen = 1

for filename in sys.argv[1:]:

maxlen = max(maxlen, len(filename))

# Process each argument in turn

for filename in sys.argv[1:]:

try:

st = statfunc(filename)

except OSError as msg:

sys.stderr.write("can't stat %r: %r\n" % (filename, msg))

status = 1

st = ()

if st:

anytime = st[itime]

size = st[ST_SIZE]

age = now - anytime

byteyears = float(size) * float(age) / secs_per_year

print(filename.ljust(maxlen), end=' ')

print(repr(int(byteyears)).rjust(8))

sys.exit(status)

if __name__ == '__main__':

main()