3 """Python utility to print MD5 checksums of argument files.
12 usage: sum5 [-b] [-t] [-l] [-s bufsize] [file ...]
13 -b : read files in binary mode (default)
14 -t : read files in text mode (you almost certainly don't want this!)
15 -l : print last pathname component only
16 -s bufsize: read buffer size (default %d)
17 file ... : files to sum; '-' or no files means stdin
27 if files and isinstance(files[-1], file):
28 out, files = files[-1], files[:-1]
31 if len(files) == 1 and not isinstance(files[0], str):
34 if isinstance(f, str):
36 sts = printsumfp(sys.stdin, '<stdin>', out) or sts
38 sts = printsum(f, out) or sts
40 sts = sum(f, out) or sts
43 def printsum(filename, out=sys.stdout):
45 fp = open(filename, rmode)
47 sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))
50 filename = fnfilter(filename)
51 sts = printsumfp(fp, filename, out)
55 def printsumfp(fp, filename, out=sys.stdout):
59 data = fp.read(bufsize)
64 sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))
66 out.write('%s %s\n' % (m.hexdigest(), filename))
69 def main(args = sys.argv[1:], out=sys.stdout):
70 global fnfilter, rmode, bufsize
72 opts, args = getopt.getopt(args, 'blts:')
73 except getopt.error, msg:
74 sys.stderr.write('%s: %s\n%s' % (sys.argv[0], msg, usage))
78 fnfilter = os.path.basename
89 if __name__ == '__main__' or __name__ == sys.argv[0]:
90 sys.exit(main(sys.argv[1:], sys.stdout))