Mercurial > libervia-backend

annotate libervia/cli/cmd_application.py @ 4239:a38559e6d6e2

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core: remove legacy VERSION file.
author Goffi <goffi@goffi.org>
date Sat, 11 May 2024 13:25:45 +0200
parents 47401850dec6
children 0d7bb4df2343
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python3
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2
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3 # Libervia CLI
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4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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5
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6 # This program is free software: you can redistribute it and/or modify
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7 # it under the terms of the GNU Affero General Public License as published by
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8 # the Free Software Foundation, either version 3 of the License, or
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9 # (at your option) any later version.
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10
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11 # This program is distributed in the hope that it will be useful,
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 # GNU Affero General Public License for more details.
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15
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16 # You should have received a copy of the GNU Affero General Public License
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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18
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19 from . import base
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20 from libervia.backend.core.i18n import _
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21 from libervia.backend.tools.common import data_format
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22 from libervia.cli.constants import Const as C
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23
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24 __commands__ = ["Application"]
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25
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26
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27 class List(base.CommandBase):
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28 """List available applications"""
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29
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30 def __init__(self, host):
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31 super(List, self).__init__(
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32 host, "list", use_profile=False, use_output=C.OUTPUT_LIST,
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33 help=_("list available applications")
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34 )
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35
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36 def add_parser_options(self):
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37 # FIXME: "extend" would be better here, but it's only available from Python 3.8+
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38 # so we use "append" until minimum version of Python is raised.
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39 self.parser.add_argument(
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40 "-f",
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41 "--filter",
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42 dest="filters",
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43 action="append",
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44 choices=["available", "running"],
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45 help=_("show applications with this status"),
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46 )
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47
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48 async def start(self):
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49
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50 # FIXME: this is only needed because we can't use "extend" in
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51 # add_parser_options, see note there
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52 if self.args.filters:
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53 self.args.filters = list(set(self.args.filters))
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54 else:
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55 self.args.filters = ['available']
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56
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57 try:
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58 found_apps = await self.host.bridge.applications_list(self.args.filters)
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59 except Exception as e:
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60 self.disp(f"can't get applications list: {e}", error=True)
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61 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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62 else:
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63 await self.output(found_apps)
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64 self.host.quit()
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65
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66
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67 class Start(base.CommandBase):
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68 """Start an application"""
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69
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70 def __init__(self, host):
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71 super(Start, self).__init__(
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72 host, "start", use_profile=False, help=_("start an application")
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73 )
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75 def add_parser_options(self):
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76 self.parser.add_argument(
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77 "name",
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78 help=_("name of the application to start"),
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79 )
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80
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81 async def start(self):
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82 try:
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83 await self.host.bridge.application_start(
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84 self.args.name,
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85 "",
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86 )
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87 except Exception as e:
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88 self.disp(f"can't start {self.args.name}: {e}", error=True)
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89 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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90 else:
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91 self.host.quit()
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92
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93
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94 class Stop(base.CommandBase):
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95
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96 def __init__(self, host):
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97 super(Stop, self).__init__(
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98 host, "stop", use_profile=False, help=_("stop a running application")
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99 )
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100
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101 def add_parser_options(self):
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102 id_group = self.parser.add_mutually_exclusive_group(required=True)
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103 id_group.add_argument(
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104 "name",
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105 nargs="?",
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106 help=_("name of the application to stop"),
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107 )
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108 id_group.add_argument(
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109 "-i",
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110 "--id",
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111 help=_("identifier of the instance to stop"),
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112 )
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113
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114 async def start(self):
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115 try:
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116 if self.args.name is not None:
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117 args = [self.args.name, "name"]
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118 else:
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119 args = [self.args.id, "instance"]
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120 await self.host.bridge.application_stop(
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121 *args,
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122 "",
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123 )
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124 except Exception as e:
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125 if self.args.name is not None:
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126 self.disp(
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127 f"can't stop application {self.args.name!r}: {e}", error=True)
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128 else:
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129 self.disp(
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130 f"can't stop application instance with id {self.args.id!r}: {e}",
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131 error=True)
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132 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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133 else:
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134 self.host.quit()
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135
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136
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137 class Exposed(base.CommandBase):
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138
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139 def __init__(self, host):
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140 super(Exposed, self).__init__(
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141 host, "exposed", use_profile=False, use_output=C.OUTPUT_DICT,
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142 help=_("show data exposed by a running application")
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143 )
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144
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145 def add_parser_options(self):
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146 id_group = self.parser.add_mutually_exclusive_group(required=True)
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147 id_group.add_argument(
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148 "name",
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149 nargs="?",
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150 help=_("name of the application to check"),
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151 )
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152 id_group.add_argument(
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153 "-i",
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154 "--id",
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155 help=_("identifier of the instance to check"),
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156 )
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157
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158 async def start(self):
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159 try:
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160 if self.args.name is not None:
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161 args = [self.args.name, "name"]
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162 else:
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163 args = [self.args.id, "instance"]
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164 exposed_data_raw = await self.host.bridge.application_exposed_get(
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165 *args,
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166 "",
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167 )
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168 except Exception as e:
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169 if self.args.name is not None:
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170 self.disp(
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171 f"can't get values exposed from application {self.args.name!r}: {e}",
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172 error=True)
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173 else:
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174 self.disp(
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175 f"can't values exposed from application instance with id {self.args.id!r}: {e}",
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176 error=True)
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177 self.host.quit(C.EXIT_BRIDGE_ERRBACK)
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178 else:
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179 exposed_data = data_format.deserialise(exposed_data_raw)
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180 await self.output(exposed_data)
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181 self.host.quit()
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182
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183
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184 class Application(base.CommandBase):
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185 subcommands = (List, Start, Stop, Exposed)
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186
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187 def __init__(self, host):
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188 super(Application, self).__init__(
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189 host, "application", use_profile=False, help=_("manage applications"),
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190 aliases=['app'],
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191 )