2 from __future__ import absolute_import, print_function
5 from bup import _helpers, metadata, options, version
6 from bup.io import byte_stream
10 def show_support(out, bool_opt, what):
11 out.write(b' %s: %s\n' % (what, b'yes' if bool_opt else b'no'))
18 o = options.Options(optspec)
19 opt, flags, extra = o.parse_bytes(argv[1:])
22 out = byte_stream(sys.stdout)
24 out.write(b'bup %s\n' % version.version)
25 out.write(b'Source %s %s\n' % (version.commit, version.date))
27 have_readline = getattr(_helpers, 'readline', None)
28 have_libacl = getattr(_helpers, 'read_acl', None)
29 have_xattr = metadata.xattr
31 out.write(b' Python: %s\n' % platform.python_version().encode('ascii'))
32 show_support(out, have_readline, b'Command line editing (e.g. bup ftp)')
33 show_support(out, have_libacl, b'Saving and restoring POSIX ACLs')
34 show_support(out, have_xattr, b'Saving and restoring extended attributes (xattrs)')