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annotate sat/tools/utils.py @ 3864:ac255a0fbd4c

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plugin pubsub attachments: partial implementation of pubsub-attachments protoXEP: This is an implementation of the "Basic Usage" of https://xmpp.org/extensions/inbox/pubsub-attachments.html. rel 370
author Goffi <goffi@goffi.org>
date Wed, 20 Jul 2022 17:49:51 +0200
parents e417c478b488
children 00212260f659
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rev   line source
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1 #!/usr/bin/env python3
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2
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3 # SaT: an XMPP client
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4 # Copyright (C) 2009-2021 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 """ various useful methods """
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20
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21 from typing import Optional, Union
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22 import unicodedata
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23 import os.path
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24 import datetime
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25 import subprocess
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26 import time
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27 import sys
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28 import random
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29 import inspect
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30 import textwrap
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31 import functools
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32 import asyncio
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33 from twisted.python import procutils, failure
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34 from twisted.internet import defer
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35 from sat.core.constants import Const as C
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36 from sat.core.log import getLogger
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37
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38 log = getLogger(__name__)
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40
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41 NO_REPOS_DATA = "repository data unknown"
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42 repos_cache_dict = None
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43 repos_cache = None
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45
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46 def clean_ustr(ustr):
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47 """Clean unicode string
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48
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49 remove special characters from unicode string
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50 """
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51
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52 def valid_chars(unicode_source):
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53 for char in unicode_source:
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54 if unicodedata.category(char) == "Cc" and char != "\n":
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55 continue
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56 yield char
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57
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58 return "".join(valid_chars(ustr))
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61 def logError(failure_):
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62 """Genertic errback which log the error as a warning, and re-raise it"""
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63 log.warning(failure_.value)
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64 raise failure_
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65
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66
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67 def partial(func, *fixed_args, **fixed_kwargs):
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68 # FIXME: temporary hack to workaround the fact that inspect.getargspec is not working with functools.partial
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69 # making partial unusable with current D-bus module (in addMethod).
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70 # Should not be needed anywore once moved to Python 3
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72 ori_args = inspect.getargspec(func).args
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73 func = functools.partial(func, *fixed_args, **fixed_kwargs)
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74 if ori_args[0] == "self":
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75 del ori_args[0]
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76 ori_args = ori_args[len(fixed_args) :]
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77 for kw in fixed_kwargs:
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78 ori_args.remove(kw)
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79
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80 exec(
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81 textwrap.dedent(
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82 """\
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83 def method({args}):
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84 return func({kw_args})
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85 """
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86 ).format(
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87 args=", ".join(ori_args), kw_args=", ".join([a + "=" + a for a in ori_args])
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88 ),
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89 locals(),
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90 )
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91
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92 return method
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94
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95 def asDeferred(func, *args, **kwargs):
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96 """Call a method and return a Deferred
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97
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98 the method can be a simple callable, a Deferred or a coroutine.
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99 It is similar to defer.maybeDeferred, but also handles coroutines
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100 """
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101 try:
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102 ret = func(*args, **kwargs)
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103 except Exception as e:
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104 return defer.fail(failure.Failure(e))
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105 else:
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106 if asyncio.iscoroutine(ret):
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107 return defer.ensureDeferred(ret)
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108 elif isinstance(ret, defer.Deferred):
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109 return ret
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110 elif isinstance(ret, failure.Failure):
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111 return defer.fail(ret)
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112 else:
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113 return defer.succeed(ret)
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114
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115
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116 def aio(func):
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117 """Decorator to return a Deferred from asyncio coroutine
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118
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119 Functions with this decorator are run in asyncio context
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120 """
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121 def wrapper(*args, **kwargs):
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122 return defer.Deferred.fromFuture(asyncio.ensure_future(func(*args, **kwargs)))
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123 return wrapper
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124
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125
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126 def as_future(d):
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127 return d.asFuture(asyncio.get_event_loop())
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128
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129
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130 def ensure_deferred(func):
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131 """Decorator to apply ensureDeferred to a function
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132
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133 to be used when the function is called by third party library (e.g. wokkel)
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134 Otherwise, it's better to use ensureDeferred as early as possible.
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135 """
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136 def wrapper(*args, **kwargs):
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137 return defer.ensureDeferred(func(*args, **kwargs))
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138 return wrapper
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139
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140
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141 def xmpp_date(
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142 timestamp: Optional[Union[float, int]] = None,
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143 with_time: bool = True
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144 ) -> str:
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145 """Return date according to XEP-0082 specification
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146
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147 to avoid reveling the timezone, we always return UTC dates
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1128feb54180 core: removed pyfeed and xe dependencies:
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148 the string returned by this method is valid with RFC 3339
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149 @param timestamp(None, float): posix timestamp. If None current time will be used
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150 @param with_time(bool): if True include the time
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151 @return(unicode): XEP-0082 formatted date and time
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152 """
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153 template_date = "%Y-%m-%d"
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154 template_time = "%H:%M:%SZ"
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155 template = (
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156 "{}T{}".format(template_date, template_time) if with_time else template_date
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157 )
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158 return datetime.datetime.utcfromtimestamp(
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159 time.time() if timestamp is None else timestamp
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160 ).strftime(template)
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161
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162
2181
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163 def generatePassword(vocabulary=None, size=20):
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164 """Generate a password with random characters.
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165
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166 @param vocabulary(iterable): characters to use to create password
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167 @param size(int): number of characters in the password to generate
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168 @return (unicode): generated password
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169 """
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170 random.seed()
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171 if vocabulary is None:
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172 vocabulary = [
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173 chr(i) for i in list(range(0x30, 0x3A)) + list(range(0x41, 0x5B)) + list(range(0x61, 0x7B))
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174 ]
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175 return "".join([random.choice(vocabulary) for i in range(15)])
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176
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177
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178 def getRepositoryData(module, as_string=True, is_path=False):
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179 """Retrieve info on current mecurial repository
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180
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181 Data is gotten by using the following methods, in order:
06e13ae616cf tools (utils): improved repository version detection:
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182 - using "hg" executable
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183 - looking for a .hg/dirstate in parent directory of module (or in module/.hg if
06e13ae616cf tools (utils): improved repository version detection:
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diff changeset
184 is_path is True), and parse dirstate file to get revision
2573
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185 - checking package version, which should have repository data when we are on a dev version
1858
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186 @param module(unicode): module to look for (e.g. sat, libervia)
06e13ae616cf tools (utils): improved repository version detection:
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187 module can be a path if is_path is True (see below)
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188 @param as_string(bool): if True return a string, else return a dictionary
1858
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189 @param is_path(bool): if True "module" is not handled as a module name, but as an
06e13ae616cf tools (utils): improved repository version detection:
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190 absolute path to the parent of a ".hg" directory
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191 @return (unicode, dictionary): retrieved info in a nice string,
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
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192 or a dictionary with retrieved data (key is not present if data is not found),
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
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193 key can be:
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
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194 - node: full revision number (40 bits)
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parents: 916
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195 - branch: branch name
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parents: 916
diff changeset
196 - date: ISO 8601 format date
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197 - tag: latest tag used in hierarchie
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198 - distance: number of commits since the last tag
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199 """
2573
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200 global repos_cache_dict
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201 if as_string:
18e2ca5f798e tools (utils): better repository version handling:
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202 global repos_cache
18e2ca5f798e tools (utils): better repository version handling:
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diff changeset
203 if repos_cache is not None:
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
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204 return repos_cache
18e2ca5f798e tools (utils): better repository version handling:
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205 else:
18e2ca5f798e tools (utils): better repository version handling:
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diff changeset
206 if repos_cache_dict is not None:
18e2ca5f798e tools (utils): better repository version handling:
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207 return repos_cache_dict
18e2ca5f798e tools (utils): better repository version handling:
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diff changeset
208
2089
0931b5a6213c core, quick_frontends: android compatibility hacks:
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diff changeset
209 if sys.platform == "android":
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210 #  FIXME: workaround to avoid trouble on android, need to be fixed properly
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211 repos_cache = "Cagou android build"
2573
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212 return repos_cache
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diff changeset
213
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214 KEYS = ("node", "node_short", "branch", "date", "tag", "distance")
1858
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diff changeset
215 ori_cwd = os.getcwd()
06e13ae616cf tools (utils): improved repository version detection:
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diff changeset
216
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
217 if is_path:
2568
8e204f0d3193 tools(utils): fixed path handling in getRepositoryData
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diff changeset
218 repos_root = os.path.abspath(module)
1858
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219 else:
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diff changeset
220 repos_root = os.path.abspath(os.path.dirname(module.__file__))
1858
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diff changeset
221
2573
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diff changeset
222 try:
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223 hg_path = procutils.which("hg")[0]
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diff changeset
224 except IndexError:
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225 log.warning("Can't find hg executable")
2573
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226 hg_path = None
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227 hg_data = {}
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228
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
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229 if hg_path is not None:
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28fd9e838f8f core: getRepositoryData now get the module in argument
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diff changeset
230 os.chdir(repos_root)
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231 try:
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232 hg_data_raw = subprocess.check_output(
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diff changeset
233 [
3739
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234 "python3",
0a87cae85746 tools (utils): fix `getRepositoryData` crash:
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235 hg_path,
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236 "log",
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diff changeset
237 "-r",
56f94936df1e code style reformatting using black
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diff changeset
238 "-1",
56f94936df1e code style reformatting using black
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diff changeset
239 "--template",
56f94936df1e code style reformatting using black
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diff changeset
240 "{node}\n"
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241 "{node|short}\n"
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242 "{branch}\n"
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243 "{date|isodate}\n"
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244 "{latesttag}\n"
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245 "{latesttagdistance}",
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246 ],
ab2696e34d29 Python 3 port:
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diff changeset
247 text=True
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248 )
3739
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diff changeset
249 except subprocess.CalledProcessError as e:
0a87cae85746 tools (utils): fix `getRepositoryData` crash:
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250 log.error(f"Can't get repository data: {e}")
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Goffi <goffi@goffi.org>
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diff changeset
251 hg_data = {}
0a87cae85746 tools (utils): fix `getRepositoryData` crash:
Goffi <goffi@goffi.org>
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diff changeset
252 except Exception as e:
0a87cae85746 tools (utils): fix `getRepositoryData` crash:
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diff changeset
253 log.error(f"Unexpected error, can't get repository data : [{type(e)}] {e}")
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254 hg_data = {}
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255 else:
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diff changeset
256 hg_data = dict(list(zip(KEYS, hg_data_raw.split("\n"))))
1857
2d2617930f97 core (tools): fixed bad call to "hg id" when hg is not working to guest revision, which was the cause of an Exception
Goffi <goffi@goffi.org>
parents: 1766
diff changeset
257 try:
3739
0a87cae85746 tools (utils): fix `getRepositoryData` crash:
Goffi <goffi@goffi.org>
parents: 3540
diff changeset
258 hg_data["modified"] = "+" in subprocess.check_output(["python3", hg_path, "id", "-i"], text=True)
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Goffi <goffi@goffi.org>
parents: 1766
diff changeset
259 except subprocess.CalledProcessError:
2d2617930f97 core (tools): fixed bad call to "hg id" when hg is not working to guest revision, which was the cause of an Exception
Goffi <goffi@goffi.org>
parents: 1766
diff changeset
260 pass
1471
934e402c90bf core: tools.utils.getRepositoryData now return "hg log -r -1" and short form of node + fixed crash if mercurial is not present:
Goffi <goffi@goffi.org>
parents: 1396
diff changeset
261 else:
934e402c90bf core: tools.utils.getRepositoryData now return "hg log -r -1" and short form of node + fixed crash if mercurial is not present:
Goffi <goffi@goffi.org>
parents: 1396
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262 hg_data = {}
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parents: 916
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263
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
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parents: 916
diff changeset
264 if not hg_data:
1858
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parents: 1857
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265 # .hg/dirstate method
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266 log.debug("trying dirstate method")
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267 if is_path:
06e13ae616cf tools (utils): improved repository version detection:
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268 os.chdir(repos_root)
06e13ae616cf tools (utils): improved repository version detection:
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parents: 1857
diff changeset
269 else:
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270 os.chdir(os.path.abspath(os.path.dirname(repos_root)))
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Goffi <goffi@goffi.org>
parents: 916
diff changeset
271 try:
3064
d62fceccff22 core (tools/utils): fixed hex conversion in getRepositoryData following Python 3 port
Goffi <goffi@goffi.org>
parents: 3028
diff changeset
272 with open(".hg/dirstate", 'rb') as hg_dirstate:
d62fceccff22 core (tools/utils): fixed hex conversion in getRepositoryData following Python 3 port
Goffi <goffi@goffi.org>
parents: 3028
diff changeset
273 hg_data["node"] = hg_dirstate.read(20).hex()
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diff changeset
274 hg_data["node_short"] = hg_data["node"][:12]
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parents: 916
diff changeset
275 except IOError:
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parents: 2793
diff changeset
276 log.debug("Can't access repository data")
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parents: 916
diff changeset
277
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diff changeset
278 # we restore original working dir
06e13ae616cf tools (utils): improved repository version detection:
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diff changeset
279 os.chdir(ori_cwd)
06e13ae616cf tools (utils): improved repository version detection:
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parents: 1857
diff changeset
280
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diff changeset
281 if not hg_data:
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parents: 2793
diff changeset
282 log.debug("Mercurial not available or working, trying package version")
2573
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parents: 2568
diff changeset
283 try:
18e2ca5f798e tools (utils): better repository version handling:
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parents: 2568
diff changeset
284 import pkg_resources
18e2ca5f798e tools (utils): better repository version handling:
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parents: 2568
diff changeset
285 except ImportError:
18e2ca5f798e tools (utils): better repository version handling:
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parents: 2568
diff changeset
286 log.warning("pkg_resources not available, can't get package data")
1858
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Goffi <goffi@goffi.org>
parents: 1857
diff changeset
287 else:
3420
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
288 try:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
289 pkg_version = pkg_resources.get_distribution(C.APP_NAME_FILE).version
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
290 version, local_id = pkg_version.split("+", 1)
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
291 except pkg_resources.DistributionNotFound:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
292 log.warning("can't retrieve package data")
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
293 except ValueError:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
294 log.info(
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
295 "no local version id in package: {pkg_version}".format(
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
296 pkg_version=pkg_version
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2612
diff changeset
297 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2612
diff changeset
298 )
1858
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
299 else:
3420
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
300 version = version.replace(".dev0", "D")
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
301 if version != C.APP_VERSION:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
302 log.warning(
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
303 "Incompatible version ({version}) and pkg_version ({pkg_version})"
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
304 .format(
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
305 version=C.APP_VERSION, pkg_version=pkg_version
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
306 )
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
307 )
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
308 else:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
309 try:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
310 hg_node, hg_distance = local_id.split(".")
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
311 except ValueError:
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
312 log.warning("Version doesn't specify repository data")
b526b95f11f2 tools(utils): fixed error catching when getting repository data with `pkg_resources`
Goffi <goffi@goffi.org>
parents: 3368
diff changeset
313 hg_data = {"node_short": hg_node, "distance": hg_distance}
2573
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Goffi <goffi@goffi.org>
parents: 2568
diff changeset
314
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
315 repos_cache_dict = hg_data
1858
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
316
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Goffi <goffi@goffi.org>
parents: 916
diff changeset
317 if as_string:
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
Goffi <goffi@goffi.org>
parents: 916
diff changeset
318 if not hg_data:
2573
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
319 repos_cache = NO_REPOS_DATA
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
320 else:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2793
diff changeset
321 strings = ["rev", hg_data["node_short"]]
2573
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
322 try:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2612
diff changeset
323 if hg_data["modified"]:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2793
diff changeset
324 strings.append("[M]")
2573
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
325 except KeyError:
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
326 pass
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
327 try:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2793
diff changeset
328 strings.extend(["({branch} {date})".format(**hg_data)])
2573
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
329 except KeyError:
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
330 pass
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
331 try:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2793
diff changeset
332 strings.extend(["+{distance}".format(**hg_data)])
2573
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
333 except KeyError:
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
334 pass
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2793
diff changeset
335 repos_cache = " ".join(strings)
2573
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
336 return repos_cache
1375
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
Goffi <goffi@goffi.org>
parents: 916
diff changeset
337 else:
3a20312d4012 core: if we are in dev version and it's possible, repository data are now checked and added to SàT version
Goffi <goffi@goffi.org>
parents: 916
diff changeset
338 return hg_data