Mercurial > libervia-backend

annotate src/bridge/bridge_constructor/bridge_constructor.py @ 2189:a25a256688e2

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jp (base): output can now specify a default when registering
author Goffi <goffi@goffi.org>
date Sun, 12 Mar 2017 23:33:26 +0100
parents da4097de5a95
children 8b37a62336c3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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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 # SàT: a XMPP client
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5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org)
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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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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 from sat.bridge import bridge_constructor
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22 from sat.bridge.bridge_constructor.constants import Const as C
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23 from sat.bridge.bridge_constructor import constructors, base_constructor
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24 import argparse
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25 from ConfigParser import SafeConfigParser as Parser
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26 from importlib import import_module
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27 import os
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28 import os.path
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29
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30 #consts
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31 __version__ = C.APP_VERSION
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32
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33
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34 class BridgeConstructor(object):
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35
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36 def importConstructors(self):
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37 constructors_dir = os.path.dirname(constructors.__file__)
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38 self.protocoles = {}
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39 for dir_ in os.listdir(constructors_dir):
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40 init_path = os.path.join(constructors_dir, dir_, '__init__.py')
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41 constructor_path = os.path.join(constructors_dir, dir_, 'constructor.py')
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42 module_path = "sat.bridge.bridge_constructor.constructors.{}.constructor".format(dir_)
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43 if os.path.isfile(init_path) and os.path.isfile(constructor_path):
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44 mod = import_module(module_path)
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45 for attr in dir(mod):
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46 obj = getattr(mod, attr)
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47 if not isinstance(obj, type):
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48 continue
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49 if issubclass(obj, base_constructor.Constructor):
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50 name = obj.NAME or dir_
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51 self.protocoles[name] = obj
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52 break
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53 if not self.protocoles:
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54 raise ValueError("no protocole constructor found")
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55
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56 def parse_args(self):
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57 """Check command line options"""
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58 parser = argparse.ArgumentParser(description=C.DESCRIPTION, formatter_class=argparse.RawDescriptionHelpFormatter)
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59
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60 parser.add_argument("--version", action="version", version= __version__)
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61 default_protocole = C.DEFAULT_PROTOCOLE if C.DEFAULT_PROTOCOLE in self.protocoles else self.protocoles[0]
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62 parser.add_argument("-p", "--protocole", choices=sorted(self.protocoles), default=default_protocole,
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63 help="generate bridge using PROTOCOLE (default: %(default)s)") # (default: %s, possible values: [%s])" % (DEFAULT_PROTOCOLE, ", ".join(MANAGED_PROTOCOLES)))
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64 parser.add_argument("-s", "--side", choices=("core", "frontend"), default="core",
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65 help="which side of the bridge do you want to make ?") # (default: %default, possible values: [core, frontend])")
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66 default_template = os.path.join(os.path.dirname(bridge_constructor.__file__), 'bridge_template.ini')
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67 parser.add_argument("-t", "--template", type=file, default=default_template,
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68 help="use TEMPLATE to generate bridge (default: %(default)s)")
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69 parser.add_argument("-f", "--force", action="store_true",
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70 help=("force overwritting of existing files"))
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71 parser.add_argument("-d", "--debug", action="store_true",
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72 help=("add debug information printing"))
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73 parser.add_argument("--no-unicode", action="store_false", dest="unicode",
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74 help=("remove unicode type protection from string results"))
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75 parser.add_argument("--flags", nargs='+', default=[],
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76 help=("constructors' specific flags"))
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77 parser.add_argument("--dest-dir", default=C.DEST_DIR_DEFAULT,
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78 help=("directory when the generated files will be written (default: %(default)s)"))
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79
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80 return parser.parse_args()
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81
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82 def go(self):
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83 self.importConstructors()
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84 args = self.parse_args()
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85 template_parser = Parser()
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86 try:
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87 template_parser.readfp(args.template)
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88 except IOError:
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89 print ("The template file doesn't exist or is not accessible")
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90 exit(1)
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91 constructor = self.protocoles[args.protocole](template_parser, args)
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92 constructor.generate(args.side)
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94
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95 if __name__ == "__main__":
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96 bc = BridgeConstructor()
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97 bc.go()