1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
#!/usr/bin/python3
# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
#
# SPDX-License-Identifier: GPL-3.0+
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from prompt_toolkit import PromptSession
from prompt_toolkit.auto_suggest import AutoSuggestFromHistory
from prompt_toolkit.completion import NestedCompleter
from prompt_toolkit.history import FileHistory
from prompt_toolkit.key_binding import KeyBindings
from prompt_toolkit.shortcuts import set_title
from prompt_toolkit.styles import Style
from pathlib import Path
from subprocess import Popen, PIPE
import os
import socket
home = str(Path.home())
hostname = socket.getfqdn()
container_completer = NestedCompleter.from_nested_dict({
'auto': { '--force': None, '--start': None, '--stop': None, },
'console': { '--name': None, },
'create': { '--name': None, '--capability': None, '--drop-capability': None, '--script': None, '--verbose': None, '--bind': None, '--bind-ro': None, },
'enter': { '--name': None, },
'key': { '--add': None, '--list': None, '--remove': None, },
'limit': { '--name': None, '--blockio-device-weight': None, '--blockio-read-bandwidth': None, '--blockio-weight': None, '--blockio-write-bandwidth': None, '--cpu-quota': None, '--cpu-shares': None, '--memory-limit': None, '--tasks-max': None, },
'list': { '--all': None,
'--format': {'cli': None, 'csv': None, 'json': None, 'nwdiag': None, 'shell': None, 'yaml': None, 'xml': None, },
'--host': None, '--other': None, '--started': None, '--stopped': None,
},
'log': { '--date': None, '--name': None, },
'move': { '--force': None, '--new': None, '--old': None, },
'remove': { '--force': None, '--name': None, },
'restart': { '--name': None, },
'start': { '--name': None, '--verbose': None, },
'status': { '--name': None, },
'stop': { '--force': None, '--name': None, },
'top': { '--force': None, '--name': None, },
'version': None,
})
style = Style.from_dict({
'completion-menu.completion': 'bg:ansiblack ansiwhite',
'completion-menu.completion.current': 'bg:ansibrightblack ansiwhite',
'bottom-toolbar': 'bg:ansiwhite ansibrightblack',
'scrollbar.background': 'bg:ansibrightblack',
'scrollbar.button': 'bg:ansiwhite',
})
kb = KeyBindings()
@kb.add('c-space') # Ctrl-Space
def _(event):
b = event.app.current_buffer
if b.complete_state:
b.complete_next()
else:
b.start_completion(select_first=False)
def run(commands):
with Popen(commands, stdout=PIPE, bufsize=1, universal_newlines=True) as p:
for line in p.stdout:
print(line, end='')
if p.returncode != 0:
raise CalledProcessError(p.returncode, p.args)
def bottom_toolbar():
return hostname + ' | [Ctrl-Space] for menu | [Ctrl-D] to exit | [Ctrl-R] for history search | help <command> for documentation'
def main():
set_title('container-shell: ' + hostname)
print('container-shell: ' + hostname)
print()
os.makedirs(home + '/.cache/container', exist_ok=True)
history = FileHistory(home + '/.cache/container/history')
session = PromptSession(
auto_suggest=AutoSuggestFromHistory(),
bottom_toolbar=bottom_toolbar,
completer=container_completer,
complete_while_typing=True,
history=history,
enable_history_search=True,
key_bindings=kb,
style=style,
)
while True:
try:
text = session.prompt('container: ')
except KeyboardInterrupt:
continue # Ctrl-C
except EOFError:
break # Ctrl-D
else:
if not text:
continue
try:
command = text.split(None, 1)[0]
except:
command = ''
if command == 'exit' or command == 'logoff' or command == 'logout' or command == 'quit':
break
if command != 'help' and not os.path.exists('/usr/lib/open-infrastructure/container/' + command):
print('\'' + command + '\': - no such command')
continue
commands = text.split()
if command == 'help':
try:
manpage = text.split(None, 1)[1]
manpage = 'container-' + manpage
except:
manpage = 'container'
commands = [ 'man', manpage ]
else:
commands.insert(0, '/usr/bin/container')
print()
run(commands)
print()
if __name__ == '__main__':
main()
|
