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annotate src/tools/utils.py @ 1983:8c4087fd034a

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quick_frontend: allow presence of entities without resource
author Goffi <goffi@goffi.org>
date Wed, 29 Jun 2016 13:42:35 +0200
parents 1128feb54180
children 0931b5a6213c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT: a jabber client
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5 # Copyright (C) 2009-2016 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 """ 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 from sat.core.log import getLogger
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25 log = getLogger(__name__)
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26 import datetime
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27 import time
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29
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30 def clean_ustr(ustr):
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31 """Clean unicode string
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32
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33 remove special characters from unicode string
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34 """
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35 def valid_chars(unicode_source):
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36 for char in unicode_source:
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37 if unicodedata.category(char) == 'Cc' and char!='\n':
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38 continue
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39 yield char
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40 return ''.join(valid_chars(ustr))
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42 def xmpp_date(timestamp=None, with_time=True):
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43 """Return date according to XEP-0082 specification
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44
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45 to avoid reveling the timezone, we always return UTC dates
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46 the string returned by this method is valid with RFC 3339
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47 @param timestamp(None, float): posix timestamp. If None current time will be used
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48 @param with_time(bool): if True include the time
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49 @return(unicode): XEP-0082 formatted date and time
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50 """
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51 template_date = u"%Y-%m-%d"
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52 template_time = u"%H:%M:%SZ"
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53 template = u"{}T{}".format(template_date, template_time) if with_time else template_date
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54 return datetime.datetime.utcfromtimestamp(time.time() if timestamp is None else timestamp).strftime(template)
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55
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56
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57 def getRepositoryData(module, as_string=True, is_path=False, save_dir_path=None):
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58 """Retrieve info on current mecurial repository
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59
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60 Data is gotten by using the following methods, in order:
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61 - using "hg" executable
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62 - looking for a ".hg_data" file in the root of the module
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63 this file must contain the data dictionnary serialized with pickle
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64 - looking for a .hg/dirstate in parent directory of module (or in module/.hg if
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65 is_path is True), and parse dirstate file to get revision
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66 @param module(unicode): module to look for (e.g. sat, libervia)
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67 module can be a path if is_path is True (see below)
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68 @param as_string(bool): if True return a string, else return a dictionary
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69 @param is_path(bool): if True "module" is not handled as a module name, but as an
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70 absolute path to the parent of a ".hg" directory
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71 @param save_path(str, None): if not None, the value will be saved to given path as a pickled dict
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72 /!\\ the .hg_data file in the given directory will be overwritten
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73 @return (unicode, dictionary): retrieved info in a nice string,
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74 or a dictionary with retrieved data (key is not present if data is not found),
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75 key can be:
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76 - node: full revision number (40 bits)
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77 - branch: branch name
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78 - date: ISO 8601 format date
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79 - tag: latest tag used in hierarchie
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80 """
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81 from distutils.spawn import find_executable
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82 import subprocess
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83 KEYS=("node", "node_short", "branch", "date", "tag")
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84 ori_cwd = os.getcwd()
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85
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86 if is_path:
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87 repos_root = module
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88 else:
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89 repos_root = os.path.dirname(module.__file__)
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90
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91 hg_path = find_executable('hg')
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92
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93 if hg_path is not None:
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94 os.chdir(repos_root)
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95 try:
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96 hg_data_raw = subprocess.check_output(["hg","log", "-r", "-1", "--template","{node}\n{node|short}\n{branch}\n{date|isodate}\n{latesttag}"])
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97 except subprocess.CalledProcessError:
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98 hg_data = {}
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99 else:
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100 hg_data = dict(zip(KEYS, hg_data_raw.split('\n')))
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101 try:
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102 hg_data['modified'] = '+' in subprocess.check_output(["hg","id","-i"])
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103 except subprocess.CalledProcessError:
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104 pass
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105 else:
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106 hg_data = {}
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107
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108 if not hg_data:
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109 # .hg_data pickle method
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110 log.debug(u"Mercurial not available or working, trying other methods")
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111 if save_dir_path is None:
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112 log.debug(u"trying .hg_data method")
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113
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114 try:
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115 with open(os.path.join(repos_root, '.hg_data')) as f:
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116 import cPickle as pickle
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117 hg_data = pickle.load(f)
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118 except IOError as e:
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119 log.debug(u"Can't access .hg_data file: {}".format(e))
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120 except pickle.UnpicklingError:
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121 log.warning(u"Error while reading {}, can't get repos data".format(f.name))
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122
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123 if not hg_data:
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124 # .hg/dirstate method
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125 log.debug(u"trying dirstate method")
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126 if is_path:
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127 os.chdir(repos_root)
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128 else:
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129 os.chdir(os.path.relpath('..', repos_root))
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130 try:
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
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131 with open('.hg/dirstate') as hg_dirstate:
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132 hg_data['node'] = hg_dirstate.read(20).encode('hex')
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133 hg_data['node_short'] = hg_data['node'][:12]
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134 except IOError:
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
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135 log.warning(u"Can't access repository data")
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136
1858
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137 # we restore original working dir
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138 os.chdir(ori_cwd)
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139
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140 # data saving
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141 if save_dir_path is not None and hg_data:
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parents: 1857
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142 if not os.path.isdir(save_dir_path):
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143 log.warning(u"Given path is not a directory, can't save data")
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144 else:
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parents: 1857
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145 import cPickle as pickle
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146 dest_path = os.path.join(save_dir_path, ".hg_data")
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147 try:
06e13ae616cf tools (utils): improved repository version detection:
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148 with open(dest_path, 'w') as f:
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149 pickle.dump(hg_data, f, 2)
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parents: 1857
diff changeset
150 except IOError as e:
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parents: 1857
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151 log.warning(u"Can't save file to {path}: {reason}".format(
06e13ae616cf tools (utils): improved repository version detection:
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parents: 1857
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152 path=dest_path, reason=e))
06e13ae616cf tools (utils): improved repository version detection:
Goffi <goffi@goffi.org>
parents: 1857
diff changeset
153 else:
06e13ae616cf tools (utils): improved repository version detection:
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parents: 1857
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154 log.debug(u"repository data saved to {}".format(dest_path))
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parents: 1857
diff changeset
155
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156 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
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parents: 916
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157 if not hg_data:
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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158 return u'repository data unknown'
1471
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parents: 1396
diff changeset
159 strings = [u'rev', hg_data['node_short']]
1375
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parents: 916
diff changeset
160 try:
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
161 if hg_data['modified']:
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
162 strings.append(u"[M]")
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
163 except KeyError:
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
164 pass
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
165 try:
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
166 strings.extend([u'({branch} {date})'.format(**hg_data)])
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
167 except KeyError:
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
168 pass
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
169
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
170 return u' '.join(strings)
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
171 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
172 return hg_data