Adding container-shell.py.tmp-python

Signed-off-by: Daniel Baumann <daniel.baumann@open-infrastructure.net>

1 files changed, 151 insertions, 0 deletions

diff --git a/bin.py/container-shell.py b/bin.py/container-shell.py
new file mode 100755
index 0000000..727cbf8
--- /dev/null
+++ b/bin.py/container-shell.py
@@ -0,0 +1,151 @@
+#!/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()