2 # For now, this completely relies on the assumption that the current
3 # encoding (LC_CTYPE, etc.) is ASCII compatible, and that it returns
4 # the exact same bytes from a decode/encode round-trip (or the reverse
7 from __future__ import absolute_import, print_function
8 import os, fnmatch, stat, sys, traceback
10 from bup import _helpers, options, git, shquote, ls, vfs
11 from bup.compat import argv_bytes
12 from bup.helpers import chunkyreader, log, saved_errors
13 from bup.io import byte_stream, path_msg
14 from bup.repo import LocalRepo
19 class OptionError(Exception):
23 def do_ls(repo, pwd, args, out):
24 pwd_str = b'/'.join(name for name, item in pwd) or b'/'
26 opt = ls.opts_from_cmdline(args, onabort=OptionError, pwd=pwd_str)
27 except OptionError as e:
30 return ls.within_repo(repo, opt, out, pwd_str)
33 def write_to_file(inf, outf):
34 for blob in chunkyreader(inf):
38 def _completer_get_subs(repo, line):
39 (qtype, lastword) = shquote.unfinished_word(line)
40 dir, name = os.path.split(lastword)
41 dir_path = vfs.resolve(repo, dir or b'/')
42 _, dir_item = dir_path[-1]
46 subs = tuple(dir_path + (entry,)
47 for entry in vfs.contents(repo, dir_item)
48 if (entry[0] != b'.' and entry[0].startswith(name)))
49 return qtype, lastword, subs
54 def attempt_completion(text, start, end):
55 global _attempt_start, _attempt_end
56 _attempt_start = start
61 def enter_completion(text, iteration):
67 line = _helpers.get_line_buffer()[:_attempt_end]
68 if _last_line != line:
69 _last_res = _completer_get_subs(repo, line)
71 qtype, lastword, subs = _last_res
72 if iteration < len(subs):
73 path = subs[iteration]
74 leaf_name, leaf_item = path[-1]
75 res = vfs.try_resolve(repo, leaf_name, parent=path[:-1])
76 leaf_name, leaf_item = res[-1]
77 fullname = os.path.join(*(name for name, item in res))
78 if stat.S_ISDIR(vfs.item_mode(leaf_item)):
79 ret = shquote.what_to_add(qtype, lastword, fullname + b'/',
82 ret = shquote.what_to_add(qtype, lastword, fullname,
83 terminate=True) + b' '
85 except Exception as e:
87 _, _, tb = sys.exc_info()
88 traceback.print_tb(tb)
89 log('\nError in completion: %s\n' % e)
98 def inputiter(f, pwd, out):
99 if os.isatty(f.fileno()):
101 prompt = b'bup %s> ' % (b'/'.join(name for name, item in pwd) or b'/', )
102 if hasattr(_helpers, 'readline'):
104 yield _helpers.readline(prompt)
106 print() # Clear the line for the terminal's next prompt
111 read_line = f.readline()
121 def present_interface(stdin, out, extra, repo):
122 pwd = vfs.resolve(repo, b'/')
125 lines = (argv_bytes(arg) for arg in extra)
127 if hasattr(_helpers, 'readline'):
128 _helpers.set_completer_word_break_characters(b' \t\n\r/')
129 _helpers.set_attempted_completion_function(attempt_completion)
130 _helpers.set_completion_entry_function(enter_completion)
131 if sys.platform.startswith('darwin'):
132 # MacOS uses a slightly incompatible clone of libreadline
133 _helpers.parse_and_bind(b'bind ^I rl_complete')
134 _helpers.parse_and_bind(b'tab: complete')
135 lines = inputiter(stdin, pwd, out)
140 words = [word for (wordstart,word) in shquote.quotesplit(line)]
141 cmd = words[0].lower()
142 #log('execute: %r %r\n' % (cmd, parm))
145 do_ls(repo, pwd, words[1:], out)
149 for parm in words[1:]:
150 res = vfs.resolve(repo, parm, parent=np)
151 _, leaf_item = res[-1]
153 raise Exception('%s does not exist'
154 % path_msg(b'/'.join(name for name, item
156 if not stat.S_ISDIR(vfs.item_mode(leaf_item)):
157 raise Exception('%s is not a directory' % path_msg(parm))
163 out.write(b'/'.join(name for name, item in pwd) + b'\n')
166 for parm in words[1:]:
167 res = vfs.resolve(repo, parm, parent=pwd)
168 _, leaf_item = res[-1]
170 raise Exception('%s does not exist' %
171 path_msg(b'/'.join(name for name, item
173 with vfs.fopen(repo, leaf_item) as srcfile:
174 write_to_file(srcfile, out)
177 if len(words) not in [2,3]:
178 raise Exception('Usage: get <filename> [localname]')
180 (dir,base) = os.path.split(rname)
181 lname = len(words) > 2 and words[2] or base
182 res = vfs.resolve(repo, rname, parent=pwd)
183 _, leaf_item = res[-1]
185 raise Exception('%s does not exist' %
186 path_msg(b'/'.join(name for name, item in res)))
187 with vfs.fopen(repo, leaf_item) as srcfile:
188 with open(lname, 'wb') as destfile:
189 log('Saving %s\n' % path_msg(lname))
190 write_to_file(srcfile, destfile)
192 for parm in words[1:]:
193 dir, base = os.path.split(parm)
195 res = vfs.resolve(repo, dir, parent=pwd)
196 _, dir_item = res[-1]
198 raise Exception('%s does not exist' % path_msg(dir))
199 for name, item in vfs.contents(repo, dir_item):
202 if fnmatch.fnmatch(name, base):
203 if stat.S_ISLNK(vfs.item_mode(item)):
204 deref = vfs.resolve(repo, name, parent=res)
205 deref_name, deref_item = deref[-1]
207 raise Exception('%s does not exist' %
208 path_msg('/'.join(name for name, item
211 with vfs.fopen(repo, item) as srcfile:
212 with open(name, 'wb') as destfile:
213 log('Saving %s\n' % path_msg(name))
214 write_to_file(srcfile, destfile)
215 elif cmd in (b'help', b'?'):
216 out.write(b'Commands: ls cd pwd cat get mget help quit\n')
218 elif cmd in (b'quit', b'exit', b'bye'):
221 raise Exception('no such command %r' % cmd)
222 except Exception as e:
223 log('error: %s\n' % e)
229 o = options.Options(optspec)
230 opt, flags, extra = o.parse_bytes(argv[1:])
232 git.check_repo_or_die()
234 out = byte_stream(sys.stdout)
235 stdin = byte_stream(sys.stdin)
236 with LocalRepo() as repo:
237 present_interface(stdin, out, extra, repo)
239 log('warning: %d errors encountered\n' % len(saved_errors))