Mercurial > libervia-backend
annotate sat/tools/common/dynamic_import.py @ 3372:5d926c7b0d99
plugin app manager: first draft:
/!\ new optional dependency: pyyaml
this plugin manage the life cycle of external applications. Application handlers register
to it.
Data needed to launch an application as set in YAML files. Local data types are used to
get values directly from SàT:
- !sat_conf to retrieve a configuration value
- !sat_generate_pwd to generate a password
- !sat_param for parameters specified a launch
Data can be exposed when an instance is launched, this can be used to specify the port
(notably the one used for web), or a generated password.
author | Goffi <goffi@goffi.org> |
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date | Mon, 28 Sep 2020 21:10:30 +0200 |
parents | 3ff952c042ae |
children | be6d91572633 |
rev | line source |
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3028 | 1 #!/usr/bin/env python3 |
3137 | 2 |
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3 # SàT: an XMPP client |
3136 | 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 """ tools dynamic import """ |
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20 |
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21 from importlib import import_module |
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22 from sat.core.log import getLogger |
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23 |
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24 |
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25 log = getLogger(__name__) |
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26 |
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27 |
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28 def bridge(name, module_path="sat.bridge"): |
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29 """Import bridge module |
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30 |
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31 @param module_path(str): path of the module to import |
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32 @param name(str): name of the bridge to import (e.g.: dbus) |
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33 @return (module, None): imported module or None if nothing is found |
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34 """ |
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35 try: |
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36 bridge_module = import_module(module_path + "." + name) |
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37 except ImportError: |
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38 try: |
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39 bridge_module = import_module(module_path + "." + name + "_bridge") |
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40 except ImportError as e: |
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41 log.warning(f"Can't import bridge {name!r}: {e}") |
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42 bridge_module = None |
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43 return bridge_module |