from cmd import Cmd
from os import popen
-from argparse import ArgumentParser
-from kamaki.cli import _update_parser, _exec_cmd
-from .argument import _arguments
-from .utils import print_dict
from sys import stdout
-from .history import History
+from argparse import ArgumentParser
+from kamaki.cli import _exec_cmd, _print_error_message
+from kamaki.cli.argument import update_arguments
+from kamaki.cli.utils import print_dict
+from kamaki.cli.history import History
+from kamaki.cli.errors import CLIError
-def _fix_arguments():
- _arguments.pop('version', None)
- _arguments.pop('options', None)
- _arguments.pop('history', None)
+
+def _init_shell(exe_string, arguments):
+ arguments.pop('version', None)
+ arguments.pop('options', None)
+ arguments.pop('history', None)
+ shell = Shell()
+ shell.set_prompt(exe_string)
+ from kamaki import __version__ as version
+ shell.greet(version)
+ shell.do_EOF = shell.do_exit
+ from kamaki.cli.command_tree import CommandTree
+ shell.cmd_tree = CommandTree(
+ 'kamaki', 'A command line tool for poking clouds')
+ return shell
class Shell(Cmd):
_suffix = ']:'
cmd_tree = None
_history = None
+ _arguments = None
+ _context_stack = []
+ _prompt_stack = []
+
undoc_header = 'interactive shell commands:'
+ def postcmd(self, post, line):
+ if self._context_stack:
+ self._roll_command()
+ self._restore(self._context_stack.pop())
+ self.set_prompt(self._prompt_stack.pop()[1:-2])
+
+ return Cmd.postcmd(self, post, line)
+
+ def precmd(self, line):
+ if line.startswith('/'):
+ cur_cmd_path = self.prompt.replace(' ', '_')[1:-2]
+ if cur_cmd_path != self.cmd_tree.name:
+ cur_cmd = self.cmd_tree.get_command(cur_cmd_path)
+ self._context_stack.append(self._backup())
+ self._prompt_stack.append(self.prompt)
+ new_context = self
+ self._roll_command(cur_cmd.path)
+ new_context.set_prompt(self.cmd_tree.name)
+ for grp_cmd in self.cmd_tree.get_subcommands():
+ self._register_command(grp_cmd.path)
+ return line[1:]
+ return line
+
def greet(self, version):
print('kamaki v%s - Interactive Shell\n\t(exit or ^D to exit)\n'\
% version)
def do_exit(self, line):
print('')
+ if self.prompt[1:-2] == self.cmd_tree.name:
+ exit(0)
return True
def do_shell(self, line):
except KeyError:
pass
- def _roll_command(self, cmd_path):
+ def _roll_command(self, cmd_path=None):
for subname in self.cmd_tree.get_subnames(cmd_path):
self._unregister_method('do_%s' % subname)
self._unregister_method('complete_%s' % subname)
def _restore(self, oldcontext):
self.__dict__ = oldcontext
- def _push_in_command(self, cmd_path):
+ def _register_command(self, cmd_path):
cmd = self.cmd_tree.get_command(cmd_path)
- self.cmd_tree = self.cmd_tree
- _history = self._history
+ arguments = self._arguments
- def do_method(self, line):
+ def do_method(new_context, line):
""" Template for all cmd.Cmd methods of the form do_<cmd name>
Parse cmd + args and decide to execute or change context
<cmd> <term> <term> <args> is always parsed to most specific
even if cmd_term_term is not a terminal path
"""
- if _history:
- _history.add(' '.join([cmd.path.replace('_', ' '), line]))
subcmd, cmd_args = cmd.parse_out(line.split())
- active_terms = [cmd.name] +\
- subcmd.path.split('_')[len(cmd.path.split('_')):]
- subname = '_'.join(active_terms)
- cmd_parser = ArgumentParser(subname, add_help=False)
+ if self._history:
+ self._history.add(' '.join([cmd.path.replace('_', ' '), line]))
+ cmd_parser = ArgumentParser(cmd.name, add_help=False)
cmd_parser.description = subcmd.help
# exec command or change context
if subcmd.is_command: # exec command
cls = subcmd.get_class()
- instance = cls(dict(_arguments))
+ instance = cls(dict(arguments))
cmd_parser.prog = '%s %s' % (cmd_parser.prog.replace('_', ' '),
cls.syntax)
- _update_parser(cmd_parser, instance.arguments)
+ update_arguments(cmd_parser, instance.arguments)
if '-h' in cmd_args or '--help' in cmd_args:
cmd_parser.print_help()
return
for name, arg in instance.arguments.items():
arg.value = getattr(parsed, name, arg.default)
- _exec_cmd(instance, unparsed, cmd_parser.print_help)
+ try:
+ _exec_cmd(instance, unparsed, cmd_parser.print_help)
+ except CLIError as err:
+ _print_error_message(err)
elif ('-h' in cmd_args or '--help' in cmd_args) \
or len(cmd_args): # print options
- print('%s: %s' % (subname, subcmd.help))
+ print('%s: %s' % (cmd.name, subcmd.help))
options = {}
for sub in subcmd.get_subcommands():
options[sub.name] = sub.help
print_dict(options)
else: # change context
- new_context = self
+ #new_context = this
backup_context = self._backup()
old_prompt = self.prompt
new_context._roll_command(cmd.parent_path)
new_context.set_prompt(subcmd.path.replace('_', ' '))
newcmds = [subcmd for subcmd in subcmd.get_subcommands()]
for subcmd in newcmds:
- new_context._push_in_command(subcmd.path)
+ new_context._register_command(subcmd.path)
new_context.cmdloop()
self.prompt = old_prompt
#when new context is over, roll back to the old one
subcmd, cmd_args = cmd.parse_out(line.split()[1:])
if subcmd.is_command:
cls = subcmd.get_class()
- instance = cls(dict(_arguments))
+ instance = cls(dict(arguments))
empty, sep, subname = subcmd.path.partition(cmd.path)
cmd_name = '%s %s' % (cmd.name, subname.replace('_', ' '))
print('\n%s\nSyntax:\t%s %s'\
cmd_args = {}
for arg in instance.arguments.values():
cmd_args[','.join(arg.parsed_name)] = arg.help
- print_dict(cmd_args, ident=14)
+ print_dict(cmd_args, ident=2)
stdout.write('%s %s' % (self.prompt, line))
return subcmd.get_subnames()
self._register_method(complete_method, 'complete_%s' % cmd.name)
hdr = tmp_partition[0].strip()
return '%s commands:' % hdr
- def run(self, path=''):
- self._history = History(_arguments['config'].get('history', 'file'))
- if len(path):
+ def run(self, arguments, path=''):
+ self._history = History(arguments['config'].get('history', 'file'))
+ self._arguments = arguments
+ if path:
cmd = self.cmd_tree.get_command(path)
intro = cmd.path.replace('_', ' ')
else:
intro = self.cmd_tree.name
for subcmd in self.cmd_tree.get_subcommands(path):
- self._push_in_command(subcmd.path)
+ self._register_command(subcmd.path)
self.set_prompt(intro)
+
self.cmdloop()
projects / kamaki / blobdiff