cmd/ftp-cmd.py

   1 #!/usr/bin/env python
   2 import sys, os, re, stat, fnmatch
   3 from bup import options, git, shquote, vfs
   4 from bup.helpers import *
   5
   6 try:
   7     import readline
   8 except ImportError:
   9     log('* readline module not available: line editing disabled.\n')
  10     readline = None
  11
  12
  13 def node_name(text, n):
  14     if stat.S_ISDIR(n.mode):
  15         return '%s/' % text
  16     elif stat.S_ISLNK(n.mode):
  17         return '%s@' % text
  18     else:
  19         return '%s' % text
  20
  21
  22 def do_ls(path, n):
  23     l = []
  24     if stat.S_ISDIR(n.mode):
  25         for sub in n:
  26             l.append(node_name(sub.name, sub))
  27     else:
  28         l.append(node_name(path, n))
  29     print columnate(l, '')
  30
  31
  32 def write_to_file(inf, outf):
  33     for blob in chunkyreader(inf):
  34         outf.write(blob)
  35
  36
  37 def inputiter():
  38     if os.isatty(sys.stdin.fileno()):
  39         while 1:
  40             try:
  41                 yield raw_input('bup> ')
  42             except EOFError:
  43                 break
  44     else:
  45         for line in sys.stdin:
  46             yield line
  47
  48
  49 def _completer_get_subs(line):
  50     (qtype, lastword) = shquote.unfinished_word(line)
  51     (dir,name) = os.path.split(lastword)
  52     #log('\ncompleter: %r %r %r\n' % (qtype, lastword, text))
  53     n = pwd.resolve(dir)
  54     subs = list(filter(lambda x: x.name.startswith(name),
  55                        n.subs()))
  56     return (dir, name, qtype, lastword, subs)
  57
  58
  59 _last_line = None
  60 _last_res = None
  61 def completer(text, state):
  62     global _last_line
  63     global _last_res
  64     try:
  65         line = readline.get_line_buffer()[:readline.get_endidx()]
  66         if _last_line != line:
  67             _last_res = _completer_get_subs(line)
  68             _last_line = line
  69         (dir, name, qtype, lastword, subs) = _last_res
  70         if state < len(subs):
  71             sn = subs[state]
  72             sn1 = sn.resolve('')  # deref symlinks
  73             fullname = os.path.join(dir, sn.name)
  74             if stat.S_ISDIR(sn1.mode):
  75                 ret = shquote.what_to_add(qtype, lastword, fullname+'/',
  76                                           terminate=False)
  77             else:
  78                 ret = shquote.what_to_add(qtype, lastword, fullname,
  79                                           terminate=True) + ' '
  80             return text + ret
  81     except Exception, e:
  82         log('\nerror in completion: %s\n' % e)
  83
  84
  85 optspec = """
  86 bup ftp
  87 """
  88 o = options.Options('bup ftp', optspec)
  89 (opt, flags, extra) = o.parse(sys.argv[1:])
  90
  91 git.check_repo_or_die()
  92
  93 top = vfs.RefList(None)
  94 pwd = top
  95
  96 if extra:
  97     lines = extra
  98 else:
  99     if readline:
 100         readline.set_completer_delims(' \t\n\r/')
 101         readline.set_completer(completer)
 102         readline.parse_and_bind("tab: complete")
 103     lines = inputiter()
 104
 105 for line in lines:
 106     if not line.strip():
 107         continue
 108     words = [word for (wordstart,word) in shquote.quotesplit(line)]
 109     cmd = words[0].lower()
 110     #log('execute: %r %r\n' % (cmd, parm))
 111     try:
 112         if cmd == 'ls':
 113             for parm in (words[1:] or ['.']):
 114                 do_ls(parm, pwd.resolve(parm))
 115         elif cmd == 'cd':
 116             for parm in words[1:]:
 117                 pwd = pwd.resolve(parm)
 118         elif cmd == 'pwd':
 119             print pwd.fullname()
 120         elif cmd == 'cat':
 121             for parm in words[1:]:
 122                 write_to_file(pwd.resolve(parm).open(), sys.stdout)
 123         elif cmd == 'get':
 124             if len(words) not in [2,3]:
 125                 raise Exception('Usage: get <filename> [localname]')
 126             rname = words[1]
 127             (dir,base) = os.path.split(rname)
 128             lname = len(words)>2 and words[2] or base
 129             inf = pwd.resolve(rname).open()
 130             log('Saving %r\n' % lname)
 131             write_to_file(inf, open(lname, 'wb'))
 132         elif cmd == 'mget':
 133             for parm in words[1:]:
 134                 (dir,base) = os.path.split(parm)
 135                 for n in pwd.resolve(dir).subs():
 136                     if fnmatch.fnmatch(n.name, base):
 137                         try:
 138                             log('Saving %r\n' % n.name)
 139                             inf = n.open()
 140                             outf = open(n.name, 'wb')
 141                             write_to_file(inf, outf)
 142                             outf.close()
 143                         except Exception, e:
 144                             log('  error: %s\n' % e)
 145         elif cmd == 'help' or cmd == '?':
 146             log('Commands: ls cd pwd cat get mget help quit\n')
 147         elif cmd == 'quit' or cmd == 'exit' or cmd == 'bye':
 148             break
 149         else:
 150             raise Exception('no such command %r' % cmd)
 151     except Exception, e:
 152         log('error: %s\n' % e)
 153         #raise