Mercurial > libervia-backend

annotate sat/bridge/bridge_constructor/bridge_constructor.py @ 3073:daed12db819d

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install (setup): added Python 3.8 classifier
author Goffi <goffi@goffi.org>
date Fri, 15 Nov 2019 17:55:39 +0100
parents ab2696e34d29
children 9d0df638c8b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python3
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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) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 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 ConfigParser 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 def importConstructors(self):
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36 constructors_dir = os.path.dirname(constructors.__file__)
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37 self.protocoles = {}
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38 for dir_ in os.listdir(constructors_dir):
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39 init_path = os.path.join(constructors_dir, dir_, "__init__.py")
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40 constructor_path = os.path.join(constructors_dir, dir_, "constructor.py")
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41 module_path = "sat.bridge.bridge_constructor.constructors.{}.constructor".format(
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42 dir_
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43 )
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44 if os.path.isfile(init_path) and os.path.isfile(constructor_path):
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45 mod = import_module(module_path)
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46 for attr in dir(mod):
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47 obj = getattr(mod, attr)
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48 if not isinstance(obj, type):
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49 continue
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50 if issubclass(obj, base_constructor.Constructor):
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51 name = obj.NAME or dir_
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52 self.protocoles[name] = obj
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53 break
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54 if not self.protocoles:
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55 raise ValueError("no protocole constructor found")
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56
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57 def parse_args(self):
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58 """Check command line options"""
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59 parser = argparse.ArgumentParser(
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60 description=C.DESCRIPTION,
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61 formatter_class=argparse.RawDescriptionHelpFormatter,
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62 )
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63
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64 parser.add_argument("--version", action="version", version=__version__)
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65 default_protocole = (
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66 C.DEFAULT_PROTOCOLE
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67 if C.DEFAULT_PROTOCOLE in self.protocoles
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68 else self.protocoles[0]
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69 )
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70 parser.add_argument(
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71 "-p",
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72 "--protocole",
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73 choices=sorted(self.protocoles),
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74 default=default_protocole,
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75 help="generate bridge using PROTOCOLE (default: %(default)s)",
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76 ) # (default: %s, possible values: [%s])" % (DEFAULT_PROTOCOLE, ", ".join(MANAGED_PROTOCOLES)))
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77 parser.add_argument(
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78 "-s",
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79 "--side",
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80 choices=("core", "frontend"),
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81 default="core",
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82 help="which side of the bridge do you want to make ?",
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83 ) # (default: %default, possible values: [core, frontend])")
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84 default_template = os.path.join(
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85 os.path.dirname(bridge_constructor.__file__), "bridge_template.ini"
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86 )
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87 parser.add_argument(
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88 "-t",
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89 "--template",
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90 type=argparse.FileType(),
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91 default=default_template,
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92 help="use TEMPLATE to generate bridge (default: %(default)s)",
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93 )
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94 parser.add_argument(
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95 "-f",
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96 "--force",
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97 action="store_true",
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98 help=("force overwritting of existing files"),
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99 )
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100 parser.add_argument(
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101 "-d", "--debug", action="store_true", help=("add debug information printing")
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102 )
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103 parser.add_argument(
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104 "--no-unicode",
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105 action="store_false",
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106 dest="unicode",
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107 help=("remove unicode type protection from string results"),
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108 )
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109 parser.add_argument(
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110 "--flags", nargs="+", default=[], help=("constructors' specific flags")
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111 )
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112 parser.add_argument(
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113 "--dest-dir",
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114 default=C.DEST_DIR_DEFAULT,
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115 help=(
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116 "directory when the generated files will be written (default: %(default)s)"
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117 ),
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118 )
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119
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120 return parser.parse_args()
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121
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122 def go(self):
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123 self.importConstructors()
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124 args = self.parse_args()
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125 template_parser = Parser()
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126 try:
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127 template_parser.readfp(args.template)
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128 except IOError:
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129 print("The template file doesn't exist or is not accessible")
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130 exit(1)
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131 constructor = self.protocoles[args.protocole](template_parser, args)
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132 constructor.generate(args.side)
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133
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134
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135 if __name__ == "__main__":
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136 bc = BridgeConstructor()
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137 bc.go()