root/trunk/twisted/conch/ls.py

Revision 31137, 2.1 KB (checked in by exarkun, 14 months ago)

Merge imap-conch-date-formatting-4937

Author: facundobatista, habnabit
Reviewer: djfroofy, exarkun
Fixes: #4937

This removes a dependency on locale-specific formatting directives used in
t.conch and t.m.imap4 and instead only uses English month abbreviations. This
re-merge fixes a Python 2.4 incompatibility.

Line 
1# -*- test-case-name: twisted.conch.test.test_cftp -*-
2# Copyright (c) Twisted Matrix Laboratories.
3# See LICENSE for details.
4
5import array
6import stat
7
8from time import time, strftime, localtime
9
10# locale-independent month names to use instead of strftime's
11_MONTH_NAMES = dict(zip(
12        range(1, 13),
13        "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec".split()))
14
15
16def lsLine(name, s):
17    """
18    Build an 'ls' line for a file ('file' in its generic sense, it
19    can be of any type).
20    """
21    mode = s.st_mode
22    perms = array.array('c', '-'*10)
23    ft = stat.S_IFMT(mode)
24    if stat.S_ISDIR(ft): perms[0] = 'd'
25    elif stat.S_ISCHR(ft): perms[0] = 'c'
26    elif stat.S_ISBLK(ft): perms[0] = 'b'
27    elif stat.S_ISREG(ft): perms[0] = '-'
28    elif stat.S_ISFIFO(ft): perms[0] = 'f'
29    elif stat.S_ISLNK(ft): perms[0] = 'l'
30    elif stat.S_ISSOCK(ft): perms[0] = 's'
31    else: perms[0] = '!'
32    # user
33    if mode&stat.S_IRUSR:perms[1] = 'r'
34    if mode&stat.S_IWUSR:perms[2] = 'w'
35    if mode&stat.S_IXUSR:perms[3] = 'x'
36    # group
37    if mode&stat.S_IRGRP:perms[4] = 'r'
38    if mode&stat.S_IWGRP:perms[5] = 'w'
39    if mode&stat.S_IXGRP:perms[6] = 'x'
40    # other
41    if mode&stat.S_IROTH:perms[7] = 'r'
42    if mode&stat.S_IWOTH:perms[8] = 'w'
43    if mode&stat.S_IXOTH:perms[9] = 'x'
44    # suid/sgid
45    if mode&stat.S_ISUID:
46        if perms[3] == 'x': perms[3] = 's'
47        else: perms[3] = 'S'
48    if mode&stat.S_ISGID:
49        if perms[6] == 'x': perms[6] = 's'
50        else: perms[6] = 'S'
51
52    lsresult = [
53        perms.tostring(),
54        str(s.st_nlink).rjust(5),
55        ' ',
56        str(s.st_uid).ljust(9),
57        str(s.st_gid).ljust(9),
58        str(s.st_size).rjust(8),
59        ' ',
60    ]
61
62    # need to specify the month manually, as strftime depends on locale
63    ttup = localtime(s.st_mtime)
64    sixmonths = 60 * 60 * 24 * 7 * 26
65    if s.st_mtime + sixmonths < time(): # last edited more than 6mo ago
66        strtime = strftime("%%s %d  %Y ", ttup)
67    else:
68        strtime = strftime("%%s %d %H:%M ", ttup)
69    lsresult.append(strtime % (_MONTH_NAMES[ttup[1]],))
70
71    lsresult.append(name)
72    return ''.join(lsresult)
73
74
75__all__ = ['lsLine']
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