annotate libervia/backend/bridge/bridge_constructor/base_constructor.py @ 4132:8e5333f1b430

core (constants): accept `y` and `t` as `True` values.
author Goffi <goffi@goffi.org>
date Wed, 18 Oct 2023 15:33:34 +0200
parents 4b842c1fb686
children 0d7bb4df2343
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
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3
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4 # Libervia: an XMPP client
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5 # Copyright (C) 2009-2021 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 """base constructor class"""
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21
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22 from libervia.backend.bridge.bridge_constructor.constants import Const as C
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23 from configparser import NoOptionError
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24 import sys
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25 import os
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26 import os.path
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27 import re
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28 from importlib import import_module
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29
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30
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31 class ParseError(Exception):
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32 # Used when the signature parsing is going wrong (invalid signature ?)
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33 pass
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34
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35
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36 class Constructor(object):
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37 NAME = None # used in arguments parsing, filename will be used if not set
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38 # following attribute are used by default generation method
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39 # they can be set to dict of strings using python formatting syntax
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40 # dict keys will be used to select part to replace (e.g. "signals" key will
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41 # replace ##SIGNALS_PART## in template), while the value is the format
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42 # keys starting with "signal" will be used for signals, while ones starting with
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43 # "method" will be used for methods
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44 #  check D-Bus constructor for an example
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45 CORE_FORMATS = None
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46 CORE_TEMPLATE = None
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47 CORE_DEST = None
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48 FRONTEND_FORMATS = None
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49 FRONTEND_TEMPLATE = None
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50 FRONTEND_DEST = None
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51
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52 # set to False if your bridge needs only core
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53 FRONTEND_ACTIVATE = True
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54
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55 def __init__(self, bridge_template, options):
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56 self.bridge_template = bridge_template
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57 self.args = options
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58
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59 @property
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60 def constructor_dir(self):
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61 constructor_mod = import_module(self.__module__)
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62 return os.path.dirname(constructor_mod.__file__)
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63
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64 def getValues(self, name):
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65 """Return values of a function in a dict
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66 @param name: Name of the function to get
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67 @return: dict, each key has the config value or None if the value is not set"""
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68 function = {}
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69 for option in ["type", "category", "sig_in", "sig_out", "doc"]:
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70 try:
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71 value = self.bridge_template.get(name, option)
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72 except NoOptionError:
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73 value = None
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74 function[option] = value
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75 return function
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76
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77 def get_default(self, name):
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78 """Return default values of a function in a dict
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79 @param name: Name of the function to get
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80 @return: dict, each key is the integer param number (no key if no default value)"""
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81 default_dict = {}
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82 def_re = re.compile(r"param_(\d+)_default")
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83
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84 for option in self.bridge_template.options(name):
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85 match = def_re.match(option)
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86 if match:
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87 try:
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88 idx = int(match.group(1))
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89 except ValueError:
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90 raise ParseError(
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91 "Invalid value [%s] for parameter number" % match.group(1)
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92 )
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93 default_dict[idx] = self.bridge_template.get(name, option)
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94
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95 return default_dict
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96
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97 def getFlags(self, name):
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98 """Return list of flags set for this function
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99
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100 @param name: Name of the function to get
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101 @return: List of flags (string)
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102 """
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103 flags = []
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104 for option in self.bridge_template.options(name):
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105 if option in C.DECLARATION_FLAGS:
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106 flags.append(option)
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107 return flags
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108
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109 def get_arguments_doc(self, name):
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110 """Return documentation of arguments
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111 @param name: Name of the function to get
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112 @return: dict, each key is the integer param number (no key if no argument doc), value is a tuple (name, doc)"""
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113 doc_dict = {}
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114 option_re = re.compile(r"doc_param_(\d+)")
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115 value_re = re.compile(r"^(\w+): (.*)$", re.MULTILINE | re.DOTALL)
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116 for option in self.bridge_template.options(name):
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117 if option == "doc_return":
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118 doc_dict["return"] = self.bridge_template.get(name, option)
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119 continue
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120 match = option_re.match(option)
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121 if match:
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122 try:
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123 idx = int(match.group(1))
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124 except ValueError:
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125 raise ParseError(
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126 "Invalid value [%s] for parameter number" % match.group(1)
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127 )
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128 value_match = value_re.match(self.bridge_template.get(name, option))
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129 if not value_match:
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130 raise ParseError("Invalid value for parameter doc [%i]" % idx)
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131 doc_dict[idx] = (value_match.group(1), value_match.group(2))
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132 return doc_dict
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133
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134 def get_doc(self, name):
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135 """Return documentation of the method
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136 @param name: Name of the function to get
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137 @return: string documentation, or None"""
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138 if self.bridge_template.has_option(name, "doc"):
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139 return self.bridge_template.get(name, "doc")
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140 return None
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141
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142 def arguments_parser(self, signature):
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143 """Generator which return individual arguments signatures from a global signature"""
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144 start = 0
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145 i = 0
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146
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147 while i < len(signature):
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parents: 2624
diff changeset
148 if signature[i] not in ["b", "y", "n", "i", "x", "q", "u", "t", "d", "s",
779351da2c13 core, frontends: replaced org\.goffi namespaces by org.salutatoi + fixed generation:
Goffi <goffi@goffi.org>
parents: 2624
diff changeset
149 "a"]:
2085
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diff changeset
150 raise ParseError("Unmanaged attribute type [%c]" % signature[i])
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
151
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diff changeset
152 if signature[i] == "a":
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
153 i += 1
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parents: 2562
diff changeset
154 if (
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
155 signature[i] != "{" and signature[i] != "("
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
156 ): # FIXME: must manage tuples out of arrays
2085
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Goffi <goffi@goffi.org>
parents:
diff changeset
157 i += 1
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
158 yield signature[start:i]
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
159 start = i
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
160 continue # we have a simple type for the array
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
161 opening_car = signature[i]
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parents: 2562
diff changeset
162 assert opening_car in ["{", "("]
56f94936df1e code style reformatting using black
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parents: 2562
diff changeset
163 closing_car = "}" if opening_car == "{" else ")"
2085
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parents:
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164 opening_count = 1
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parents: 2562
diff changeset
165 while True: # we have a dict or a list of tuples
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
166 i += 1
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
167 if i >= len(signature):
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
168 raise ParseError("missing }")
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
169 if signature[i] == opening_car:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
170 opening_count += 1
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
171 if signature[i] == closing_car:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
172 opening_count -= 1
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
173 if opening_count == 0:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
174 break
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
175 i += 1
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
176 yield signature[start:i]
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
177 start = i
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
178
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
179 def get_arguments(self, signature, name=None, default=None, unicode_protect=False):
2085
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parents:
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180 """Return arguments to user given a signature
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
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181
da4097de5a95 bridge (constructor): refactoring:
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parents:
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182 @param signature: signature in the short form (using s,a,i,b etc)
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parents: 3538
diff changeset
183 @param name: dictionary of arguments name like given by get_arguments_doc
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parents: 3538
diff changeset
184 @param default: dictionary of default values, like given by get_default
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
185 @param unicode_protect: activate unicode protection on strings (return strings as unicode(str))
2091
f413bfc24458 bridge, quick_frontend: preparation for async bridge
Goffi <goffi@goffi.org>
parents: 2087
diff changeset
186 @return (str): arguments that correspond to a signature (e.g.: "sss" return "arg1, arg2, arg3")
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
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187 """
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
188 idx = 0
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
189 attr_string = []
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
190
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Goffi <goffi@goffi.org>
parents: 3538
diff changeset
191 for arg in self.arguments_parser(signature):
2624
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Goffi <goffi@goffi.org>
parents: 2562
diff changeset
192 attr_string.append(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
193 (
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ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
194 "str(%(name)s)%(default)s"
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
195 if (unicode_protect and arg == "s")
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
196 else "%(name)s%(default)s"
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
197 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
198 % {
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
199 "name": name[idx][0] if (name and idx in name) else "arg_%i" % idx,
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
200 "default": "=" + default[idx] if (default and idx in default) else "",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
201 }
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
202 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
203 # give arg_1, arg2, etc or name1, name2=default, etc.
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
204 # give unicode(arg_1), unicode(arg_2), etc. if unicode_protect is set and arg is a string
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
205 idx += 1
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
206
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
207 return ", ".join(attr_string)
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
208
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parents: 3538
diff changeset
209 def get_template_path(self, template_file):
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
210 """return template path corresponding to file name
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
211
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
212 @param template_file(str): name of template file
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
213 """
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
214 return os.path.join(self.constructor_dir, template_file)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
215
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
216 def core_completion_method(self, completion, function, default, arg_doc, async_):
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
217 """override this method to extend completion"""
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
218 pass
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
219
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
220 def core_completion_signal(self, completion, function, default, arg_doc, async_):
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
221 """override this method to extend completion"""
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
222 pass
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
223
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
224 def frontend_completion_method(self, completion, function, default, arg_doc, async_):
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
225 """override this method to extend completion"""
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
226 pass
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
227
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
228 def frontend_completion_signal(self, completion, function, default, arg_doc, async_):
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
229 """override this method to extend completion"""
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
230 pass
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
231
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
232 def generate(self, side):
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
233 """generate bridge
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
234
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524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
235 call generate_core_side or generateFrontendSide if they exists
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
236 else call generic self._generate method
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
237 """
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
238 try:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
239 if side == "core":
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
240 method = self.generate_core_side
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
241 elif side == "frontend":
2087
159250d66407 bridge (constructor): embedded bridge generator:
Goffi <goffi@goffi.org>
parents: 2085
diff changeset
242 if not self.FRONTEND_ACTIVATE:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
243 print("This constructor only handle core, please use core side")
2087
159250d66407 bridge (constructor): embedded bridge generator:
Goffi <goffi@goffi.org>
parents: 2085
diff changeset
244 sys.exit(1)
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
245 method = self.generateFrontendSide
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
246 except AttributeError:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
247 self._generate(side)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
248 else:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
249 method()
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
250
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
251 def _generate(self, side):
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
252 """generate the backend
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
253
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
254 this is a generic method which will use formats found in self.CORE_SIGNAL_FORMAT
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
255 and self.CORE_METHOD_FORMAT (standard format method will be used)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
256 @param side(str): core or frontend
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
257 """
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
258 side_vars = []
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
259 for var in ("FORMATS", "TEMPLATE", "DEST"):
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
260 attr = "{}_{}".format(side.upper(), var)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
261 value = getattr(self, attr)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
262 if value is None:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
263 raise NotImplementedError
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
264 side_vars.append(value)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
265
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
266 FORMATS, TEMPLATE, DEST = side_vars
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
267 del side_vars
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
268
2624
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Goffi <goffi@goffi.org>
parents: 2562
diff changeset
269 parts = {part.upper(): [] for part in FORMATS}
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
270 sections = self.bridge_template.sections()
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
271 sections.sort()
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
272 for section in sections:
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
273 function = self.getValues(section)
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
274 print(("Adding %s %s" % (section, function["type"])))
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
275 default = self.get_default(section)
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
276 arg_doc = self.get_arguments_doc(section)
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
277 async_ = "async" in self.getFlags(section)
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
278 completion = {
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
279 "sig_in": function["sig_in"] or "",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
280 "sig_out": function["sig_out"] or "",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
281 "category": "plugin" if function["category"] == "plugin" else "core",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
282 "name": section,
2087
159250d66407 bridge (constructor): embedded bridge generator:
Goffi <goffi@goffi.org>
parents: 2085
diff changeset
283 # arguments with default values
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
284 "args": self.get_arguments(
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
285 function["sig_in"], name=arg_doc, default=default
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
286 ),
4037
524856bd7b19 massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents: 3538
diff changeset
287 "args_no_default": self.get_arguments(function["sig_in"], name=arg_doc),
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
288 }
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
289
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
290 extend_method = getattr(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
291 self, "{}_completion_{}".format(side, function["type"])
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
292 )
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
293 extend_method(completion, function, default, arg_doc, async_)
da4097de5a95 bridge (constructor): refactoring:
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294
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295 for part, fmt in FORMATS.items():
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296 if (part.startswith(function["type"])
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297 or part.startswith(f"async_{function['type']}")):
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298 parts[part.upper()].append(fmt.format(**completion))
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299
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300 # at this point, signals_part, methods_part and direct_calls should be filled,
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301 # we just have to place them in the right part of the template
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302 bridge = []
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303 const_override = {
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304 env[len(C.ENV_OVERRIDE) :]: v
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305 for env, v in os.environ.items()
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306 if env.startswith(C.ENV_OVERRIDE)
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307 }
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308 template_path = self.get_template_path(TEMPLATE)
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309 try:
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310 with open(template_path) as template:
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311 for line in template:
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312
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313 for part, extend_list in parts.items():
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314 if line.startswith("##{}_PART##".format(part)):
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315 bridge.extend(extend_list)
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316 break
da4097de5a95 bridge (constructor): refactoring:
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317 else:
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318 # the line is not a magic part replacement
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319 if line.startswith("const_"):
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320 const_name = line[len("const_") : line.find(" = ")].strip()
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321 if const_name in const_override:
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322 print(("const {} overriden".format(const_name)))
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323 bridge.append(
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324 "const_{} = {}".format(
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325 const_name, const_override[const_name]
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326 )
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327 )
2085
da4097de5a95 bridge (constructor): refactoring:
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328 continue
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329 bridge.append(line.replace("\n", ""))
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330 except IOError:
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ab2696e34d29 Python 3 port:
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331 print(("can't open template file [{}]".format(template_path)))
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332 sys.exit(1)
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333
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334 # now we write to final file
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335 self.final_write(DEST, bridge)
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336
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337 def final_write(self, filename, file_buf):
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338 """Write the final generated file in [dest dir]/filename
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339
da4097de5a95 bridge (constructor): refactoring:
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340 @param filename: name of the file to generate
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parents:
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341 @param file_buf: list of lines (stings) of the file
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parents:
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342 """
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343 if os.path.exists(self.args.dest_dir) and not os.path.isdir(self.args.dest_dir):
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344 print(
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345 "The destination dir [%s] can't be created: a file with this name already exists !"
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346 )
2085
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347 sys.exit(1)
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
348 try:
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349 if not os.path.exists(self.args.dest_dir):
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350 os.mkdir(self.args.dest_dir)
da4097de5a95 bridge (constructor): refactoring:
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351 full_path = os.path.join(self.args.dest_dir, filename)
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
352 if os.path.exists(full_path) and not self.args.force:
3028
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diff changeset
353 print((
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354 "The destination file [%s] already exists ! Use --force to overwrite it"
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355 % full_path
3028
ab2696e34d29 Python 3 port:
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parents: 2771
diff changeset
356 ))
2085
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
357 try:
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358 with open(full_path, "w") as dest_file:
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parents: 2562
diff changeset
359 dest_file.write("\n".join(file_buf))
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
360 except IOError:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2771
diff changeset
361 print(("Can't open destination file [%s]" % full_path))
2085
da4097de5a95 bridge (constructor): refactoring:
Goffi <goffi@goffi.org>
parents:
diff changeset
362 except OSError:
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
363 print("It's not possible to generate the file, check your permissions")
da4097de5a95 bridge (constructor): refactoring:
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parents:
diff changeset
364 exit(1)