annotate sat/plugins/plugin_misc_app_manager.py @ 3374:47755614b82a

jp (application): new `application` (or `app`) commands: those commands allow to: - list available SàT applications - start an application - stop an application - display/get exposed values
author Goffi <goffi@goffi.org>
date Mon, 28 Sep 2020 21:10:33 +0200
parents 5d926c7b0d99
children bfe9ebd253a7
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1 #!/usr/bin/env python3
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2
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3 # SàT plugin to manage external applications
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4 # Copyright (C) 2009-2020 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 pathlib import Path
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20 from typing import Optional, List
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21 from functools import partial, reduce
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22 import tempfile
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23 import secrets
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24 import string
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25 import shortuuid
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26 from twisted.internet import defer
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27 from twisted.python.procutils import which
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28 from sat.core.i18n import _
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29 from sat.core import exceptions
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30 from sat.core.constants import Const as C
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31 from sat.core.log import getLogger
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32 from sat.tools.common import data_format
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33 from sat.tools.common import async_process
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34
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35 log = getLogger(__name__)
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36
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37 try:
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38 import yaml
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39 except ImportError:
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40 raise exceptions.MissingModule(
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41 'Missing module PyYAML, please download/install it. You can use '
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42 '"pip install pyyaml"'
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43 )
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44
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45 try:
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46 from yaml import CLoader as Loader, CDumper as Dumper
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47 except ImportError:
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48 log.warning(
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49 "Can't use LibYAML binding (is libyaml installed?), pure Python version will be "
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50 "used, but it is slower"
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51 )
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52 from yaml import Loader, Dumper
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53
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54 from yaml.constructor import ConstructorError
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55
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56
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57 PLUGIN_INFO = {
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58 C.PI_NAME: "Applications Manager",
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59 C.PI_IMPORT_NAME: "APP_MANAGER",
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60 C.PI_TYPE: C.PLUG_TYPE_MISC,
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61 C.PI_MODES: C.PLUG_MODE_BOTH,
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62 C.PI_MAIN: "AppManager",
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63 C.PI_HANDLER: "no",
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64 C.PI_DESCRIPTION: _(
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65 """Applications Manager
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66
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67 Manage external applications using packagers, OS virtualization/containers or other
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68 software management tools.
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69 """),
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70 }
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71
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72 APP_FILE_PREFIX = "sat_app_"
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73
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74
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75 class AppManager:
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76 load = partial(yaml.load, Loader=Loader)
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77 dump = partial(yaml.dump, Dumper=Dumper)
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78
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79 def __init__(self, host):
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80 log.info(_("plugin Applications Manager initialization"))
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81 self.host = host
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82 self._managers = {}
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83 self._apps = {}
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84 self._started = {}
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85 # instance id to app data map
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86 self._instances = {}
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87 host.bridge.addMethod(
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88 "applicationsList",
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89 ".plugin",
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90 in_sign="as",
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91 out_sign="as",
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92 method=self.list_applications,
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93 )
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94 host.bridge.addMethod(
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95 "applicationStart",
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96 ".plugin",
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97 in_sign="ss",
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98 out_sign="",
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99 method=self._start,
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100 async_=True,
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101 )
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102 host.bridge.addMethod(
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103 "applicationStop",
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104 ".plugin",
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105 in_sign="sss",
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106 out_sign="",
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107 method=self._stop,
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108 async_=True,
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109 )
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110 host.bridge.addMethod(
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111 "applicationExposedGet",
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112 ".plugin",
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113 in_sign="sss",
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114 out_sign="s",
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115 method=self._getExposed,
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116 async_=True,
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117 )
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118 yaml.add_constructor(
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119 "!sat_conf", self._sat_conf_constr, Loader=Loader)
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120 yaml.add_constructor(
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121 "!sat_generate_pwd", self._sat_generate_pwd_constr, Loader=Loader)
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122 yaml.add_constructor(
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123 "!sat_param", self._sat_param_constr, Loader=Loader)
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124
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125 def unload(self):
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126 log.debug("unloading applications manager")
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127 for instances in self._started.values():
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128 for instance in instances:
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129 data = instance['data']
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130 if not data['single_instance']:
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131 log.debug(
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132 f"cleaning temporary directory at {data['_instance_dir_path']}")
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133 data['_instance_dir_obj'].cleanup()
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134
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135 def _sat_conf_constr(self, loader, node):
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136 """Get a value from SàT configuration
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137
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138 A list is expected with either "name" of a config parameter, a one or more of
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139 those parameters:
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140 - section
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141 - name
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142 - default value
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143 - filter
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144 filter can be:
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145 - "first": get the first item of the value
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146 """
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147 config_data = loader.construct_sequence(node)
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148 if len(config_data) == 1:
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149 section, name, default, filter_ = "", config_data[0], None, None
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
150 if len(config_data) == 2:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
151 (section, name), default, filter_ = config_data, None, None
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
152 elif len(config_data) == 3:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
153 (section, name, default), filter_ = config_data, None
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
154 elif len(config_data) == 4:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
155 section, name, default, filter_ = config_data
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
156 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
157 raise ValueError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
158 f"invalid !sat_conf value ({config_data!r}), a list of 1 to 4 items is "
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
159 "expected"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
160 )
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
161
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
162 value = self.host.memory.getConfig(section, name, default)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
163 if name == "public_url" and not value or not value.startswith('http'):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
164 if not value:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
165 log.warning(_(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
166 'No value found for "public_url", using "https://example.org" for '
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
167 'now, please set the proper value in sat.conf'))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
168 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
169 log.warning(_(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
170 'invalid value for "public_url" ({value}), it must start with '
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
171 '"http", ignoring it and using "https://example.org" instead')
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
172 .format(value=value))
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
173 value = "https://example.org"
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
174
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
175 if filter_ is None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
176 pass
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
177 elif filter_ == 'first':
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
178 value = value[0]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
179 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
180 raise ValueError(f"unmanaged filter: {filter_}")
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
181
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
182 return value
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
183
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
184 def _sat_generate_pwd_constr(self, loader, node):
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
185 alphabet = string.ascii_letters + string.digits
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
186 return ''.join(secrets.choice(alphabet) for i in range(30))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
187
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
188 def _sat_param_constr(self, loader, node):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
189 """Get a parameter specified when starting the application
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
190
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
191 The value can be either the name of the parameter to get, or a list as
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
192 [name, default_value]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
193 """
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
194 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
195 name, default = loader.construct_sequence(node)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
196 except ConstructorError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
197 name, default = loader.construct_scalar(node), None
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
198 return self._params.get(name, default)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
199
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
200 def register(self, manager):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
201 name = manager.name
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
202 if name in self._managers:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
203 raise exceptions.ConflictError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
204 f"There is already a manager with the name {name}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
205 self._managers[manager.name] = manager
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
206 if hasattr(manager, "discover_path"):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
207 self.discover(manager.discover_path, manager)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
208
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
209 def getManager(self, app_data: dict) -> object:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
210 """Get manager instance needed for this app
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
211
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
212 @raise exceptions.DataError: something is wrong with the type
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
213 @raise exceptions.NotFound: manager is not registered
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
214 """
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
215 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
216 app_type = app_data["type"]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
217 except KeyError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
218 raise exceptions.DataError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
219 "app file doesn't have the mandatory \"type\" key"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
220 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
221 if not isinstance(app_type, str):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
222 raise exceptions.DataError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
223 f"invalid app data type: {app_type!r}"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
224 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
225 app_type = app_type.strip()
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
226 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
227 return self._managers[app_type]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
228 except KeyError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
229 raise exceptions.NotFound(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
230 f"No manager found to manage app of type {app_type!r}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
231
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
232 def getAppData(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
233 self,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
234 id_type: Optional[str],
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
235 identifier: str
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
236 ) -> dict:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
237 """Retrieve instance's app_data from identifier
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
238
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
239 @param id_type: type of the identifier, can be:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
240 - "name": identifier is a canonical application name
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
241 the first found instance of this application is returned
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
242 - "instance": identifier is an instance id
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
243 @param identifier: identifier according to id_type
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
244 @return: instance application data
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
245 @raise exceptions.NotFound: no instance with this id can be found
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
246 @raise ValueError: id_type is invalid
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
247 """
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
248 if not id_type:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
249 id_type = 'name'
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
250 if id_type == 'name':
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
251 identifier = identifier.lower().strip()
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
252 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
253 return next(iter(self._started[identifier]))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
254 except (KeyError, StopIteration):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
255 raise exceptions.NotFound(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
256 f"No instance of {identifier!r} is currently running"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
257 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
258 elif id_type == 'instance':
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
259 instance_id = identifier
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
260 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
261 return self._instances[instance_id]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
262 except KeyError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
263 raise exceptions.NotFound(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
264 f"There is no application instance running with id {instance_id!r}"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
265 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
266 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
267 raise ValueError(f"invalid id_type: {id_type!r}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
268
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
269 def discover(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
270 self,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
271 dir_path: Path,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
272 manager: Optional = None
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
273 ) -> None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
274 for file_path in dir_path.glob(f"{APP_FILE_PREFIX}*.yaml"):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
275 if manager is None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
276 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
277 app_data = self.parse(file_path)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
278 manager = self.getManager(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
279 except (exceptions.DataError, exceptions.NotFound) as e:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
280 log.warning(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
281 f"Can't parse {file_path}, skipping: {e}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
282 app_name = file_path.stem[len(APP_FILE_PREFIX):].strip().lower()
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
283 if not app_name:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
284 log.warning(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
285 f"invalid app file name at {file_path}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
286 continue
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
287 app_dict = self._apps.setdefault(app_name, {})
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
288 manager_set = app_dict.setdefault(manager, set())
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
289 manager_set.add(file_path)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
290 log.debug(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
291 f"{app_name!r} {manager.name} application found"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
292 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
293
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
294 def parse(self, file_path: Path, params: Optional[dict] = None) -> dict:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
295 """Parse SàT application file
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
296
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
297 @param params: parameters for running this instance
5d926c7b0d99 plugin app manager: first draft:
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298 @raise exceptions.DataError: something is wrong in the file
5d926c7b0d99 plugin app manager: first draft:
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299 """
5d926c7b0d99 plugin app manager: first draft:
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300 if params is None:
5d926c7b0d99 plugin app manager: first draft:
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301 params = {}
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
302 with file_path.open() as f:
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303 # we set parameters to be used only with this instance
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304 # no async method must used between this assignation and `load`
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305 self._params = params
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
306 app_data = self.load(f)
5d926c7b0d99 plugin app manager: first draft:
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307 self._params = None
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
308 if "name" not in app_data:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
309 # note that we don't use lower() here as we want human readable name and
5d926c7b0d99 plugin app manager: first draft:
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parents:
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310 # uppercase may be set on purpose
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
311 app_data['name'] = file_path.stem[len(APP_FILE_PREFIX):].strip()
5d926c7b0d99 plugin app manager: first draft:
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312 single_instance = app_data.setdefault("single_instance", True)
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
313 if not isinstance(single_instance, bool):
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
314 raise ValueError(
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
315 f'"single_instance" must be a boolean, but it is {type(single_instance)}'
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
316 )
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
317 return app_data
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
318
5d926c7b0d99 plugin app manager: first draft:
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319 def list_applications(self, filters: Optional[List[str]]) -> List[str]:
5d926c7b0d99 plugin app manager: first draft:
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320 """List available application
5d926c7b0d99 plugin app manager: first draft:
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parents:
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321
5d926c7b0d99 plugin app manager: first draft:
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322 @param filters: only show applications matching those filters.
5d926c7b0d99 plugin app manager: first draft:
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323 using None will list all known applications
5d926c7b0d99 plugin app manager: first draft:
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324 a filter can be:
5d926c7b0d99 plugin app manager: first draft:
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325 - available: applications available locally
5d926c7b0d99 plugin app manager: first draft:
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parents:
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326 - running: only show launched applications
5d926c7b0d99 plugin app manager: first draft:
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327 """
5d926c7b0d99 plugin app manager: first draft:
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328 if not filters:
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329 return list(self.apps)
5d926c7b0d99 plugin app manager: first draft:
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330 found = set()
5d926c7b0d99 plugin app manager: first draft:
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331 for filter_ in filters:
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
332 if filter_ == "available":
5d926c7b0d99 plugin app manager: first draft:
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parents:
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333 found.update(self._apps)
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
334 elif filter_ == "running":
5d926c7b0d99 plugin app manager: first draft:
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diff changeset
335 found.update(self._started)
5d926c7b0d99 plugin app manager: first draft:
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336 else:
5d926c7b0d99 plugin app manager: first draft:
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337 raise ValueError(f"Unknown filter: {filter_}")
5d926c7b0d99 plugin app manager: first draft:
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338 return list(found)
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
339
5d926c7b0d99 plugin app manager: first draft:
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340 def _start(self, app_name, extra):
5d926c7b0d99 plugin app manager: first draft:
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341 extra = data_format.deserialise(extra)
5d926c7b0d99 plugin app manager: first draft:
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342 return defer.ensureDeferred(self.start(str(app_name), extra))
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
343
5d926c7b0d99 plugin app manager: first draft:
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parents:
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344 async def start(
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
345 self,
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
346 app_name: str,
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
347 extra: Optional[dict] = None,
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
348 ) -> None:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
349 # FIXME: for now we use the first app manager available for the requested app_name
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
350 # TODO: implement running multiple instance of the same app if some metadata
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
351 # to be defined in app_data allows explicitly it.
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
352 app_name = app_name.lower().strip()
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
353 try:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
354 app_file_path = next(iter(next(iter(self._apps[app_name].values()))))
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
355 except KeyError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
356 raise exceptions.NotFound(
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
357 f"No application found with the name {app_name!r}"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
358 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
359 started_data = self._started.setdefault(app_name, [])
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
360 app_data = self.parse(app_file_path, extra)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
361 app_data['_file_path'] = app_file_path
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
362 app_data['_name_canonical'] = app_name
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
363 single_instance = app_data['single_instance']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
364 if single_instance:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
365 if started_data:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
366 log.info(f"{app_name!r} is already started")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
367 return
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
368 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
369 cache_path = self.host.memory.getCachePath(
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
370 PLUGIN_INFO[C.PI_IMPORT_NAME], app_name
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
371 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
372 cache_path.mkdir(0o700, parents=True, exist_ok=True)
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
373 app_data['_instance_dir_path'] = cache_path
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
374 else:
5d926c7b0d99 plugin app manager: first draft:
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parents:
diff changeset
375 dest_dir_obj = tempfile.TemporaryDirectory(prefix="sat_app_")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
376 app_data['_instance_dir_obj'] = dest_dir_obj
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
377 app_data['_instance_dir_path'] = Path(dest_dir_obj.name)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
378 instance_id = app_data['_instance_id'] = shortuuid.uuid()
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
379 manager = self.getManager(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
380 app_data['_manager'] = manager
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
381 started_data.append(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
382 self._instances[instance_id] = app_data
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
383
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
384 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
385 start = manager.start
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
386 except AttributeError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
387 raise exceptions.InternalError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
388 f"{manager.name} doesn't have the mandatory \"start\" method"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
389 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
390 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
391 await start(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
392 log.info(f"{app_name!r} started")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
393
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
394 def _stop(self, identifier, id_type, extra):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
395 extra = data_format.deserialise(extra)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
396 return defer.ensureDeferred(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
397 self.stop(str(identifier), str(id_type) or None, extra))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
398
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
399 async def stop(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
400 self,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
401 identifier: str,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
402 id_type: Optional[str] = None,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
403 extra: Optional[dict] = None,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
404 ) -> None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
405 if extra is None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
406 extra = {}
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
407
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
408 app_data = self.getAppData(id_type, identifier)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
409
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
410 log.info(f"stopping {app_data['name']!r}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
411
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
412 app_name = app_data['_name_canonical']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
413 instance_id = app_data['_instance_id']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
414 manager = app_data['_manager']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
415
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
416 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
417 stop = manager.stop
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
418 except AttributeError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
419 raise exceptions.InternalError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
420 f"{manager.name} doesn't have the mandatory \"stop\" method"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
421 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
422 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
423 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
424 await stop(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
425 except Exception as e:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
426 log.warning(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
427 f"Instance {instance_id} of application {app_name} can't be stopped "
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
428 f"properly: {e}"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
429 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
430 return
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
431
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
432 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
433 del self._instances[instance_id]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
434 except KeyError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
435 log.error(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
436 f"INTERNAL ERROR: {instance_id!r} is not present in self._instances")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
437
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
438 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
439 self._started[app_name].remove(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
440 except ValueError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
441 log.error(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
442 "INTERNAL ERROR: there is no app data in self._started with id "
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
443 f"{instance_id!r}"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
444 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
445
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
446 log.info(f"{app_name!r} stopped")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
447
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
448 def _getExposed(self, identifier, id_type, extra):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
449 extra = data_format.deserialise(extra)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
450 d = defer.ensureDeferred(self.getExposed(identifier, id_type, extra))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
451 d.addCallback(lambda d: data_format.serialise(d))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
452 return d
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
453
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
454 def getValueFromPath(self, app_data: dict, path: List[str]) -> any:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
455 """Retrieve a value set in the data from it path
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
456
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
457 @param path: list of key to use in app_data to retrieve the value
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
458 @return: found value
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
459 @raise NotFound: the value can't be found
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
460 """
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
461
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
462 async def getExposed(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
463 self,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
464 identifier: str,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
465 id_type: Optional[str] = None,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
466 extra: Optional[dict] = None,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
467 ) -> dict:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
468 """Get data exposed by the application
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
469
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
470 The manager's "computeExpose" method will be called if it exists. It can be used
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
471 to handle manager specific conventions.
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
472 """
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
473 app_data = self.getAppData(id_type, identifier)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
474 if app_data.get('_exposed_computed', False):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
475 return app_data['expose']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
476 if extra is None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
477 extra = {}
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
478 expose = app_data.setdefault("expose", {})
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
479 if "passwords" in expose:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
480 passwords = expose['passwords']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
481 for name, value in list(passwords.items()):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
482 if isinstance(value, list):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
483 # if we have a list, is the sequence of keys leading to the value
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
484 # to expose. We use "reduce" to retrieve the desired value
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
485 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
486 passwords[name] = reduce(lambda l, k: l[k], value, app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
487 except Exception as e:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
488 log.warning(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
489 f"Can't retrieve exposed value for password {name!r}: {e}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
490 del passwords[name]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
491
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
492 url_prefix = expose.get("url_prefix")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
493 if isinstance(url_prefix, list):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
494 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
495 expose["url_prefix"] = reduce(lambda l, k: l[k], url_prefix, app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
496 except Exception as e:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
497 log.warning(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
498 f"Can't retrieve exposed value for url_prefix: {e}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
499 del expose["url_prefix"]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
500
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
501 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
502 computeExpose = app_data['_manager'].computeExpose
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
503 except AttributeError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
504 pass
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
505 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
506 await computeExpose(app_data)
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
507
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
508 app_data['_exposed_computed'] = True
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
509 return expose
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
510
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
511 async def _doPrepare(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
512 self,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
513 app_data: dict,
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
514 ) -> None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
515 name = app_data['name']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
516 dest_path = app_data['_instance_dir_path']
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
517 if next(dest_path.iterdir(), None) != None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
518 log.debug(f"There is already a prepared dir at {dest_path}, nothing to do")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
519 return
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
520 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
521 prepare = app_data['prepare'].copy()
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
522 except KeyError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
523 prepare = {}
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
524
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
525 if not prepare:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
526 log.debug("Nothing to prepare for {name!r}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
527 return
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
528
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
529 for action, value in list(prepare.items()):
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
530 log.debug(f"[{name}] [prepare] running {action!r} action")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
531 if action == "git":
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
532 try:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
533 git_path = which('git')[0]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
534 except IndexError:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
535 raise exceptions.NotFound(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
536 "Can't find \"git\" executable, {name} can't be started without it"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
537 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
538 await async_process.run(git_path, "clone", value, str(dest_path))
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
539 log.debug(f"{value!r} git repository cloned at {dest_path}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
540 else:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
541 raise NotImplementedError(
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
542 f"{action!r} is not managed, can't start {name}"
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
543 )
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
544 del prepare[action]
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
545
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
546 if prepare:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
547 raise exceptions.InternalError('"prepare" should be empty')
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
548
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
549 async def startCommon(self, app_data: dict) -> None:
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
550 """Method running common action when starting a manager
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
551
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
552 It should be called by managers in "start" method.
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
553 """
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
554 log.info(f"starting {app_data['name']!r}")
5d926c7b0d99 plugin app manager: first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
555 await self._doPrepare(app_data)