Mercurial > libervia-backend
annotate frontends/src/jp/cmd_shell.py @ 2478:e5acc83a9d51
tools (common/data_objects): use lists instead of generators for BlogItem.groups and BlogItem.tags
author | Goffi <goffi@goffi.org> |
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date | Sun, 21 Jan 2018 20:20:38 +0100 |
parents | 8b37a62336c3 |
children | 0046283a285d |
rev | line source |
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1 #!/usr/bin/env python2 |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # jp: a SàT command line tool |
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5 # Copyright (C) 2009-2017 Jérôme Poisson (goffi@goffi.org) |
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6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
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11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
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16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 |
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21 import base |
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22 import cmd |
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23 import sys |
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24 from sat.core.i18n import _ |
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25 from sat.core import exceptions |
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26 from sat_frontends.jp.constants import Const as C |
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27 from sat_frontends.jp import arg_tools |
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28 from sat.tools.common.ansi import ANSI as A |
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29 import shlex |
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30 import subprocess |
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31 |
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32 __commands__ = ["Shell"] |
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33 INTRO = _(u"""Welcome to {app_name} shell, the Salut à Toi shell ! |
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34 |
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35 This enrironment helps you using several {app_name} commands with similar parameters. |
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36 |
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37 To quit, just enter "quit" or press C-d. |
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38 Enter "help" or "?" to know what to do |
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39 """).format(app_name = C.APP_NAME) |
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40 |
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41 |
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42 class Shell(base.CommandBase, cmd.Cmd): |
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43 |
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44 def __init__(self, host): |
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45 base.CommandBase.__init__(self, host, 'shell', help=_(u'launch jp in shell (REPL) mode')) |
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46 cmd.Cmd.__init__(self) |
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47 |
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48 def parse_args(self, args): |
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49 """parse line arguments""" |
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50 return shlex.split(args, posix=True) |
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51 |
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52 def update_path(self): |
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53 self._cur_parser = self.host.parser |
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54 self.help = u'' |
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55 for idx, path_elt in enumerate(self.path): |
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56 try: |
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57 self._cur_parser = arg_tools.get_cmd_choices(path_elt, self._cur_parser) |
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58 except exceptions.NotFound: |
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59 self.disp(_(u'bad command path'), error=True) |
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60 self.path=self.path[:idx] |
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61 break |
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62 else: |
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63 self.help = self._cur_parser |
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64 |
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65 self.prompt = A.color(C.A_PROMPT_PATH, u'/'.join(self.path)) + A.color(C.A_PROMPT_SUF, u'> ') |
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66 try: |
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67 self.actions = arg_tools.get_cmd_choices(parser=self._cur_parser).keys() |
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68 except exceptions.NotFound: |
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69 self.actions = [] |
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70 |
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71 def add_parser_options(self): |
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72 pass |
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73 |
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74 def format_args(self, args): |
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75 """format argument to be printed with quotes if needed""" |
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76 for arg in args: |
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77 if " " in arg: |
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78 yield arg_tools.escape(arg) |
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79 else: |
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80 yield arg |
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81 |
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82 def run_cmd(self, args, external=False): |
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83 """run command and retur exit code |
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84 |
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85 @param args[list[string]]: arguments of the command |
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86 must not include program name |
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87 @param external(bool): True if it's an external command (i.e. not jp) |
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88 @return (int): exit code (0 success, any other int failure) |
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89 """ |
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90 # FIXME: we have to use subprocess |
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91 # and relaunch whole python for now |
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92 # because if host.quit() is called in D-Bus callback |
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93 # GLib quit the whole app without possibility to stop it |
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94 # didn't found a nice way to work around it so far |
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95 # Situation should be better when we'll move away from python-dbus |
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96 if self.verbose: |
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97 self.disp(_(u"COMMAND {external}=> {args}").format( |
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98 external = _(u'(external) ') if external else u'', |
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99 args=u' '.join(self.format_args(args)))) |
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100 if not external: |
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101 args = sys.argv[0:1] + args |
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102 ret_code= subprocess.call(args) |
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103 # XXX: below is a way to launch the command without creating a new process |
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104 # may be used when a solution to the aforementioned issue is there |
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105 # try: |
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106 # self.host.run(args) |
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107 # except SystemExit as e: |
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108 # ret_code = e.code |
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109 # except Exception as e: |
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110 # self.disp(A.color(C.A_FAILURE, u'command failed with an exception: {msg}'.format(msg=e)), error=True) |
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111 # ret_code = 1 |
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112 # else: |
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113 # ret_code = 0 |
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114 |
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115 if ret_code != 0: |
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116 self.disp(A.color(C.A_FAILURE, u'command failed with an error code of {err_no}'.format(err_no=ret_code)), error=True) |
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117 return ret_code |
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118 |
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119 def default(self, args): |
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120 """called when no shell command is recognized |
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121 |
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122 will launch the command with args on the line |
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123 (i.e. will launch do [args]) |
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124 """ |
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125 if args=='EOF': |
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126 self.do_quit('') |
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127 self.do_do(args) |
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128 |
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129 def do_help(self, args): |
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130 """show help message""" |
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131 if not args: |
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132 self.disp(A.color(C.A_HEADER, _(u'Shell commands:')), no_lf=True) |
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133 super(Shell, self).do_help(args) |
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134 if not args: |
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135 self.disp(A.color(C.A_HEADER, _(u'Action commands:'))) |
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136 help_list = self._cur_parser.format_help().split('\n\n') |
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137 print('\n\n'.join(help_list[1 if self.path else 2:])) |
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138 |
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139 def do_debug(self, args): |
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140 """launch internal debugger""" |
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141 try: |
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142 import ipdb as pdb |
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143 except ImportError: |
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144 import pdb |
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145 pdb.set_trace() |
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146 |
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147 def do_verbose(self, args): |
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148 """show verbose mode, or (de)activate it""" |
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149 args = self.parse_args(args) |
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150 if args: |
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151 self.verbose = C.bool(args[0]) |
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152 self.disp(_(u'verbose mode is {status}').format( |
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153 status = _(u'ENABLED') if self.verbose else _(u'DISABLED'))) |
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154 |
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155 def do_cmd(self, args): |
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156 """change command path""" |
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157 if args == '..': |
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158 self.path = self.path[:-1] |
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159 else: |
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160 if not args or args[0] == '/': |
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161 self.path = [] |
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162 args = '/'.join(args.split()) |
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163 for path_elt in args.split('/'): |
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164 path_elt = path_elt.strip() |
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165 if not path_elt: |
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166 continue |
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167 self.path.append(path_elt) |
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168 self.update_path() |
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169 |
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170 def do_version(self, args): |
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171 """show current SàT/jp version""" |
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172 try: |
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173 self.host.run(['--version']) |
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174 except SystemExit: |
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175 pass |
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176 |
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177 def do_shell(self, args): |
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178 """launch an external command (you can use ![command] too)""" |
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179 args = self.parse_args(args) |
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180 self.run_cmd(args, external=True) |
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181 |
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182 def do_do(self, args): |
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183 """lauch a command""" |
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184 args = self.parse_args(args) |
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185 if (self._not_default_profile and |
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186 not '-p' in args and |
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187 not '--profile' in args and |
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188 not 'profile' in self.use): |
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189 # profile is not specified and we are not using the default profile |
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190 # so we need to add it in arguments to use current user profile |
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191 if self.verbose: |
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192 self.disp(_(u'arg profile={profile} (logged profile)').format(profile=self.profile)) |
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193 use = self.use.copy() |
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194 use['profile'] = self.profile |
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195 else: |
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196 use = self.use |
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197 |
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198 |
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199 # args may be modified by use_args |
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200 # to remove subparsers from it |
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201 parser_args, use_args = arg_tools.get_use_args(self.host, |
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202 args, |
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203 use, |
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204 verbose=self.verbose, |
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205 parser=self._cur_parser |
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206 ) |
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207 cmd_args = self.path + parser_args + use_args |
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208 self.run_cmd(cmd_args) |
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209 |
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210 def do_use(self, args): |
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211 """fix an argument""" |
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212 args = self.parse_args(args) |
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213 if not args: |
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214 if not self.use: |
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215 self.disp(_(u'no argument in USE')) |
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216 else: |
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217 self.disp(_(u'arguments in USE:')) |
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218 for arg, value in self.use.iteritems(): |
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219 self.disp(_(A.color(C.A_SUBHEADER, arg, A.RESET, u' = ', arg_tools.escape(value)))) |
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220 elif len(args) != 2: |
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221 self.disp(u'bad syntax, please use:\nuse [arg] [value]', error=True) |
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222 else: |
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223 self.use[args[0]] = u' '.join(args[1:]) |
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224 if self.verbose: |
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225 self.disp('set {name} = {value}'.format( |
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226 name = args[0], value=arg_tools.escape(args[1]))) |
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227 |
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228 def do_use_clear(self, args): |
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229 """unset one or many argument(s) in USE, or all of them if no arg is specified""" |
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230 args = self.parse_args(args) |
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231 if not args: |
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232 self.use.clear() |
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233 else: |
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234 for arg in args: |
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235 try: |
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236 del self.use[arg] |
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237 except KeyError: |
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238 self.disp(A.color(C.A_FAILURE, _(u'argument {name} not found').format(name=arg)), error=True) |
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239 else: |
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240 if self.verbose: |
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241 self.disp(_(u'argument {name} removed').format(name=arg)) |
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242 |
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243 def do_whoami(self, args): |
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244 u"""print profile currently used""" |
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245 self.disp(self.profile) |
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246 |
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247 def do_quit(self, args): |
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248 u"""quit the shell""" |
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249 self.disp(_(u'good bye!')) |
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250 self.host.quit() |
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251 |
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252 def do_exit(self, args): |
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253 u"""alias for quit""" |
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254 self.do_quit(args) |
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255 |
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256 def start(self): |
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257 default_profile = self.host.bridge.profileNameGet(C.PROF_KEY_DEFAULT) |
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258 self._not_default_profile = self.profile != default_profile |
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259 self.path = [] |
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260 self._cur_parser = self.host.parser |
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261 self.use = {} |
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262 self.verbose = False |
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263 self.update_path() |
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264 self.cmdloop(INTRO.encode('utf-8')) |