annotate sat/tools/utils.py @ 3330:7b47f48d31f3

plugin XEP-0264: fix orientation of thumbnails: Rotation of thumbnailis is now modified according to EXIF orientation data. Original image is not modified as user may want to keep it, and orientation transformation can modify encoding parameters. Update `pillow` minimum version to the first one with `exif_transpose` implementation.
author Goffi <goffi@goffi.org>
date Thu, 13 Aug 2020 23:46:18 +0200
parents 4396bf14f5fc
children e86b71b1aa31
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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
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2020 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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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 """ various useful methods """
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21
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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 from asyncio import iscoroutine
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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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39
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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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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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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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93
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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 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 xmpp_date(timestamp=None, with_time=True):
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117 """Return date according to XEP-0082 specification
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118
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119 to avoid reveling the timezone, we always return UTC dates
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120 the string returned by this method is valid with RFC 3339
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121 @param timestamp(None, float): posix timestamp. If None current time will be used
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122 @param with_time(bool): if True include the time
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123 @return(unicode): XEP-0082 formatted date and time
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124 """
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125 template_date = "%Y-%m-%d"
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126 template_time = "%H:%M:%SZ"
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127 template = (
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128 "{}T{}".format(template_date, template_time) if with_time else template_date
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129 )
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130 return datetime.datetime.utcfromtimestamp(
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131 time.time() if timestamp is None else timestamp
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132 ).strftime(template)
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133
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134
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135 def generatePassword(vocabulary=None, size=20):
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136 """Generate a password with random characters.
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137
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138 @param vocabulary(iterable): characters to use to create password
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139 @param size(int): number of characters in the password to generate
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140 @return (unicode): generated password
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141 """
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142 random.seed()
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143 if vocabulary is None:
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144 vocabulary = [
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145 chr(i) for i in list(range(0x30, 0x3A)) + list(range(0x41, 0x5B)) + list(range(0x61, 0x7B))
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146 ]
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147 return "".join([random.choice(vocabulary) for i in range(15)])
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148
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149
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150 def getRepositoryData(module, as_string=True, is_path=False):
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151 """Retrieve info on current mecurial repository
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152
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153 Data is gotten by using the following methods, in order:
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154 - using "hg" executable
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155 - looking for a .hg/dirstate in parent directory of module (or in module/.hg if
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156 is_path is True), and parse dirstate file to get revision
2573
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157 - checking package version, which should have repository data when we are on a dev version
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158 @param module(unicode): module to look for (e.g. sat, libervia)
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159 module can be a path if is_path is True (see below)
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160 @param as_string(bool): if True return a string, else return a dictionary
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161 @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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162 absolute path to the parent of a ".hg" directory
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163 @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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164 or a dictionary with retrieved data (key is not present if data is not found),
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165 key can be:
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166 - node: full revision number (40 bits)
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parents: 916
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167 - branch: branch name
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168 - date: ISO 8601 format date
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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169 - tag: latest tag used in hierarchie
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170 - distance: number of commits since the last tag
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171 """
2573
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172 global repos_cache_dict
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173 if as_string:
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174 global repos_cache
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175 if repos_cache is not None:
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176 return repos_cache
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177 else:
18e2ca5f798e tools (utils): better repository version handling:
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178 if repos_cache_dict is not None:
18e2ca5f798e tools (utils): better repository version handling:
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179 return repos_cache_dict
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180
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0931b5a6213c core, quick_frontends: android compatibility hacks:
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diff changeset
181 if sys.platform == "android":
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182 #  FIXME: workaround to avoid trouble on android, need to be fixed properly
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183 repos_cache = "Cagou android build"
2573
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184 return repos_cache
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185
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186 KEYS = ("node", "node_short", "branch", "date", "tag", "distance")
1858
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187 ori_cwd = os.getcwd()
06e13ae616cf tools (utils): improved repository version detection:
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188
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
189 if is_path:
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8e204f0d3193 tools(utils): fixed path handling in getRepositoryData
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
190 repos_root = os.path.abspath(module)
1858
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191 else:
2568
8e204f0d3193 tools(utils): fixed path handling in getRepositoryData
Goffi <goffi@goffi.org>
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192 repos_root = os.path.abspath(os.path.dirname(module.__file__))
1858
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193
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194 try:
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195 hg_path = procutils.which("hg")[0]
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196 except IndexError:
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197 log.warning("Can't find hg executable")
2573
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198 hg_path = None
18e2ca5f798e tools (utils): better repository version handling:
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199 hg_data = {}
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200
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
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201 if hg_path is not None:
1376
28fd9e838f8f core: getRepositoryData now get the module in argument
Goffi <goffi@goffi.org>
parents: 1375
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202 os.chdir(repos_root)
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Goffi <goffi@goffi.org>
parents: 916
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203 try:
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204 hg_data_raw = subprocess.check_output(
56f94936df1e code style reformatting using black
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parents: 2612
diff changeset
205 [
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206 "hg",
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2612
diff changeset
207 "log",
56f94936df1e code style reformatting using black
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208 "-r",
56f94936df1e code style reformatting using black
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parents: 2612
diff changeset
209 "-1",
56f94936df1e code style reformatting using black
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parents: 2612
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210 "--template",
56f94936df1e code style reformatting using black
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211 "{node}\n"
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212 "{node|short}\n"
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213 "{branch}\n"
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214 "{date|isodate}\n"
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215 "{latesttag}\n"
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216 "{latesttagdistance}",
3028
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217 ],
ab2696e34d29 Python 3 port:
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218 text=True
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219 )
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220 except subprocess.CalledProcessError:
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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221 hg_data = {}
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222 else:
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ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
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diff changeset
223 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
224 try:
3028
ab2696e34d29 Python 3 port:
Goffi <goffi@goffi.org>
parents: 2793
diff changeset
225 hg_data["modified"] = "+" in subprocess.check_output(["hg", "id", "-i"], text=True)
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
226 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
227 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
228 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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229 hg_data = {}
1375
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230
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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diff changeset
231 if not hg_data:
1858
06e13ae616cf tools (utils): improved repository version detection:
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232 # .hg/dirstate method
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233 log.debug("trying dirstate method")
1858
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
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diff changeset
234 if is_path:
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
235 os.chdir(repos_root)
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
236 else:
2573
18e2ca5f798e tools (utils): better repository version handling:
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237 os.chdir(os.path.abspath(os.path.dirname(repos_root)))
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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
238 try:
3064
d62fceccff22 core (tools/utils): fixed hex conversion in getRepositoryData following Python 3 port
Goffi <goffi@goffi.org>
parents: 3028
diff changeset
239 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
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240 hg_data["node"] = hg_dirstate.read(20).hex()
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241 hg_data["node_short"] = hg_data["node"][:12]
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242 except IOError:
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Goffi <goffi@goffi.org>
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diff changeset
243 log.debug("Can't access repository data")
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diff changeset
244
1858
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245 # we restore original working dir
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
246 os.chdir(ori_cwd)
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
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diff changeset
247
2573
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248 if not hg_data:
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Goffi <goffi@goffi.org>
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diff changeset
249 log.debug("Mercurial not available or working, trying package version")
2573
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Goffi <goffi@goffi.org>
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diff changeset
250 try:
18e2ca5f798e tools (utils): better repository version handling:
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parents: 2568
diff changeset
251 import pkg_resources
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252
2573
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253 pkg_version = pkg_resources.get_distribution(C.APP_NAME_FILE).version
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254 version, local_id = pkg_version.split("+", 1)
2573
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diff changeset
255 except ImportError:
18e2ca5f798e tools (utils): better repository version handling:
Goffi <goffi@goffi.org>
parents: 2568
diff changeset
256 log.warning("pkg_resources not available, can't get package data")
18e2ca5f798e tools (utils): better repository version handling:
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257 except pkg_resources.DistributionNotFound:
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258 log.warning("can't retrieve package data")
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259 except ValueError:
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260 log.info(
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261 "no local version id in package: {pkg_version}".format(
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262 pkg_version=pkg_version
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263 )
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264 )
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265 else:
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266 version = version.replace(".dev0", "D")
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267 if version != C.APP_VERSION:
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268 log.warning(
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269 "Incompatible version ({version}) and pkg_version ({pkg_version})".format(
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270 version=C.APP_VERSION, pkg_version=pkg_version
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271 )
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272 )
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273 else:
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274 try:
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275 hg_node, hg_distance = local_id.split(".")
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276 except ValueError:
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277 log.warning("Version doesn't specify repository data")
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278 hg_data = {"node_short": hg_node, "distance": hg_distance}
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diff changeset
279
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280 repos_cache_dict = hg_data
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281
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parents: 916
diff changeset
282 if as_string:
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diff changeset
283 if not hg_data:
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284 repos_cache = NO_REPOS_DATA
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285 else:
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286 strings = ["rev", hg_data["node_short"]]
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diff changeset
287 try:
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288 if hg_data["modified"]:
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289 strings.append("[M]")
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290 except KeyError:
18e2ca5f798e tools (utils): better repository version handling:
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291 pass
18e2ca5f798e tools (utils): better repository version handling:
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diff changeset
292 try:
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293 strings.extend(["({branch} {date})".format(**hg_data)])
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diff changeset
294 except KeyError:
18e2ca5f798e tools (utils): better repository version handling:
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diff changeset
295 pass
18e2ca5f798e tools (utils): better repository version handling:
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parents: 2568
diff changeset
296 try:
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diff changeset
297 strings.extend(["+{distance}".format(**hg_data)])
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diff changeset
298 except KeyError:
18e2ca5f798e tools (utils): better repository version handling:
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diff changeset
299 pass
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300 repos_cache = " ".join(strings)
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diff changeset
301 return repos_cache
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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
302 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
303 return hg_data