Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_merge_req_mercurial.py @ 4219:1b5cf2ee1d86

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plugin XEP-0384, XEP-0391: download missing devices list: when a peer jid was not in our roster, devices list was not retrieved, resulting in failed en/decryption. This patch does check it and download missing devices list in necessary. There is no subscription managed yet, so the list won't be updated in case of new devices, this should be addressed at some point.
author Goffi <goffi@goffi.org>
date Tue, 05 Mar 2024 17:31:36 +0100
parents 4b842c1fb686
children 0d7bb4df2343
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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 libervia.backend.tools.common import async_process
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22 from libervia.backend.tools import utils
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23 from libervia.backend.core.i18n import _, D_
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24 from libervia.backend.core.constants import Const as C
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25 from libervia.backend.core import exceptions
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26 from libervia.backend.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(
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90 repository, 'export', '-g', '-r', 'outgoing() and ancestors(.)',
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91 '--encoding=utf-8'
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92 )
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93 d.addCallback(lambda data: data.decode('utf-8'))
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94 return d
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95
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96 def import_(self, repository, data, data_type, item_id, service, node, extra):
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97 parsed_data = self.parse(data)
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98 try:
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99 parsed_name = parsed_data[0]['commit_msg'].split('\n')[0]
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100 parsed_name = CLEAN_RE.sub('', parsed_name)[:40]
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101 except Exception:
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102 parsed_name = ''
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103 name = 'mr_{item_id}_{parsed_name}'.format(item_id=CLEAN_RE.sub('', item_id),
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104 parsed_name=parsed_name)
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105 return MercurialProtocol.run(repository, 'qimport', '-g', '--name', name,
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106 '--encoding=utf-8', '-', stdin=data)
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107
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108 def parse(self, data, data_type=None):
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109 lines = data.splitlines()
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110 total_lines = len(lines)
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111 patches = []
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112 while lines:
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113 patch = {}
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114 commit_msg = []
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115 diff = []
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116 state = 'init'
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117 if lines[0] != '# HG changeset patch':
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118 raise exceptions.DataError(_('invalid changeset signature'))
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119 # line index of this patch in the whole data
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120 patch_idx = total_lines - len(lines)
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121 del lines[0]
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122
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123 for idx, line in enumerate(lines):
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124 if state == 'init':
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125 if line.startswith('# '):
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126 if line.startswith('# User '):
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127 elems = line[7:].split()
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128 if not elems:
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129 continue
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130 last = elems[-1]
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131 if (last.startswith('<') and last.endswith('>')
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132 and '@' in last):
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133 patch[self._m.META_EMAIL] = elems.pop()[1:-1]
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134 patch[self._m.META_AUTHOR] = ' '.join(elems)
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135 elif line.startswith('# Date '):
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136 time_data = line[7:].split()
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137 if len(time_data) != 2:
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138 log.warning(_('unexpected time data: {data}')
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139 .format(data=line[7:]))
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140 continue
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141 patch[self._m.META_TIMESTAMP] = (int(time_data[0])
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142 + int(time_data[1]))
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143 elif line.startswith('# Node ID '):
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144 patch[self._m.META_HASH] = line[10:]
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145 elif line.startswith('# Parent '):
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146 patch[self._m.META_PARENT_HASH] = line[10:]
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147 else:
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148 state = 'commit_msg'
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149 if state == 'commit_msg':
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150 if line.startswith('diff --git a/'):
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151 state = 'diff'
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152 patch[self._m.META_DIFF_IDX] = patch_idx + idx + 1
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153 else:
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154 commit_msg.append(line)
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155 if state == 'diff':
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156 if line.startswith('# ') or idx == len(lines)-1:
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157 # a new patch is starting or we have reached end of patches
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158 if idx == len(lines)-1:
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159 # end of patches, we need to keep the line
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160 diff.append(line)
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161 patch[self._m.META_COMMIT_MSG] = '\n'.join(commit_msg)
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162 patch[self._m.META_DIFF] = '\n'.join(diff)
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163 patches.append(patch)
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164 if idx == len(lines)-1:
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165 del lines[:]
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166 else:
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167 del lines[:idx]
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168 break
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169 else:
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170 diff.append(line)
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171 return patches