Mercurial > libervia-backend

annotate sat/plugins/plugin_merge_req_mercurial.py @ 3652:6e34307319c0

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plugin XEP-0353: fix jingle initiation on disco "Service Unavailable" error: When requesting disco info on a bare jid which is not in our roster, server may return "Service Unavailable" (to avoid leaking valid JIDs). In this case, the initiation was failing, this is now fixed by using empty categories in this case.
author Goffi <goffi@goffi.org>
date Wed, 08 Sep 2021 11:16:52 +0200
parents be6d91572633
children e3c1f4736ab2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python3
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2
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3 # SàT plugin managing Mercurial VCS
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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 import re
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20 from twisted.python.procutils import which
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21 from sat.tools.common import async_process
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22 from sat.tools import utils
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23 from sat.core.i18n import _, D_
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24 from sat.core.constants import Const as C
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25 from sat.core import exceptions
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26 from sat.core.log import getLogger
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27 log = getLogger(__name__)
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29
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30 PLUGIN_INFO = {
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31 C.PI_NAME: "Mercurial Merge Request handler",
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32 C.PI_IMPORT_NAME: "MERGE_REQUEST_MERCURIAL",
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33 C.PI_TYPE: C.PLUG_TYPE_MISC,
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34 C.PI_DEPENDENCIES: ["MERGE_REQUESTS"],
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35 C.PI_MAIN: "MercurialHandler",
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36 C.PI_HANDLER: "no",
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37 C.PI_DESCRIPTION: _("""Merge request handler for Mercurial""")
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38 }
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39
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40 SHORT_DESC = D_("handle Mercurial repository")
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41 CLEAN_RE = re.compile(r'[^\w -._]', flags=re.UNICODE)
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42
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43
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44 class MercurialProtocol(async_process.CommandProtocol):
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45 """handle hg commands"""
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46 name = "Mercurial"
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47 command = None
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48
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49 @classmethod
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50 def run(cls, path, command, *args, **kwargs):
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51 """Create a new MercurialRegisterProtocol and execute the given mercurial command.
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52
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53 @param path(unicode): path to the repository
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54 @param command(unicode): hg command to run
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55 @return D(bytes): stdout of the command
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56 """
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57 assert "path" not in kwargs
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58 kwargs["path"] = path
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59 # FIXME: we have to use this workaround because Twisted's protocol.ProcessProtocol
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60 # is not using new style classes. This can be removed once moved to
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61 # Python 3 (super can be used normally then).
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62 d = async_process.CommandProtocol.run.__func__(cls, command, *args, **kwargs)
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63 d.addErrback(utils.logError)
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64 return d
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65
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66
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67 class MercurialHandler(object):
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68 data_types = ('mercurial_changeset',)
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69
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70 def __init__(self, host):
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71 log.info(_("Mercurial merge request handler initialization"))
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72 try:
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73 MercurialProtocol.command = which('hg')[0]
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74 except IndexError:
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75 raise exceptions.NotFound(_("Mercurial executable (hg) not found, "
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76 "can't use Mercurial handler"))
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77 self.host = host
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78 self._m = host.plugins['MERGE_REQUESTS']
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79 self._m.register('mercurial', self, self.data_types, SHORT_DESC)
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80
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81
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82 def check(self, repository):
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83 d = MercurialProtocol.run(repository, 'identify')
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84 d.addCallback(lambda __: True)
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85 d.addErrback(lambda __: False)
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86 return d
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87
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88 def export(self, repository):
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89 d = MercurialProtocol.run(repository, 'export', '-g', '-r', 'outgoing()',
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90 '--encoding=utf-8')
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91 d.addCallback(lambda data: data.decode('utf-8'))
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92 return d
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93
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94 def import_(self, repository, data, data_type, item_id, service, node, extra):
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95 parsed_data = self.parse(data)
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96 try:
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97 parsed_name = parsed_data[0]['commit_msg'].split('\n')[0]
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98 parsed_name = CLEAN_RE.sub('', parsed_name)[:40]
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99 except Exception:
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100 parsed_name = ''
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101 name = 'mr_{item_id}_{parsed_name}'.format(item_id=CLEAN_RE.sub('', item_id),
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102 parsed_name=parsed_name)
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103 return MercurialProtocol.run(repository, 'qimport', '-g', '--name', name,
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104 '--encoding=utf-8', '-', stdin=data)
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105
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106 def parse(self, data, data_type=None):
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107 lines = data.splitlines()
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108 total_lines = len(lines)
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109 patches = []
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110 while lines:
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111 patch = {}
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112 commit_msg = []
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113 diff = []
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114 state = 'init'
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115 if lines[0] != '# HG changeset patch':
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116 raise exceptions.DataError(_('invalid changeset signature'))
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117 # line index of this patch in the whole data
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118 patch_idx = total_lines - len(lines)
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119 del lines[0]
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120
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121 for idx, line in enumerate(lines):
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122 if state == 'init':
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123 if line.startswith('# '):
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124 if line.startswith('# User '):
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125 elems = line[7:].split()
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126 if not elems:
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127 continue
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128 last = elems[-1]
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129 if (last.startswith('<') and last.endswith('>')
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130 and '@' in last):
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131 patch[self._m.META_EMAIL] = elems.pop()[1:-1]
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132 patch[self._m.META_AUTHOR] = ' '.join(elems)
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133 elif line.startswith('# Date '):
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134 time_data = line[7:].split()
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135 if len(time_data) != 2:
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136 log.warning(_('unexpected time data: {data}')
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137 .format(data=line[7:]))
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138 continue
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139 patch[self._m.META_TIMESTAMP] = (int(time_data[0])
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140 + int(time_data[1]))
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141 elif line.startswith('# Node ID '):
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142 patch[self._m.META_HASH] = line[10:]
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143 elif line.startswith('# Parent '):
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144 patch[self._m.META_PARENT_HASH] = line[10:]
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145 else:
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146 state = 'commit_msg'
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147 if state == 'commit_msg':
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148 if line.startswith('diff --git a/'):
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149 state = 'diff'
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150 patch[self._m.META_DIFF_IDX] = patch_idx + idx + 1
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151 else:
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152 commit_msg.append(line)
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153 if state == 'diff':
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154 if line.startswith('# ') or idx == len(lines)-1:
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155 # a new patch is starting or we have reached end of patches
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156 if idx == len(lines)-1:
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157 # end of patches, we need to keep the line
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158 diff.append(line)
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159 patch[self._m.META_COMMIT_MSG] = '\n'.join(commit_msg)
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160 patch[self._m.META_DIFF] = '\n'.join(diff)
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161 patches.append(patch)
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162 if idx == len(lines)-1:
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163 del lines[:]
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164 else:
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165 del lines[:idx]
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166 break
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167 else:
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168 diff.append(line)
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169 return patches