Mercurial > libervia-backend

annotate sat/plugins/plugin_merge_req_mercurial.py @ 3101:ab7e8ade848a

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plugin XEP-0045: added room statuses to metadata: room statuses are now sent with other metadata on bridge signals, and saved in Room instance. They give useful data on the room, for instance they can be used to know if a full jid is used in this room.
author Goffi <goffi@goffi.org>
date Mon, 30 Dec 2019 20:44:02 +0100
parents fee60f17ebac
children 9d0df638c8b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python3
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2 # -*- coding: utf-8 -*-
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3
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4 # SàT plugin for import external blogs
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5 # Copyright (C) 2009-2019 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 import re
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21 from twisted.python.procutils import which
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22 from sat.tools.common import async_process
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23 from sat.tools import utils
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24 from sat.core.i18n import _, D_
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25 from sat.core.constants import Const as C
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26 from sat.core import exceptions
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27 from sat.core.log import getLogger
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28 log = getLogger(__name__)
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29
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30
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31 PLUGIN_INFO = {
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32 C.PI_NAME: "Mercurial Merge Request handler",
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33 C.PI_IMPORT_NAME: "MERGE_REQUEST_MERCURIAL",
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34 C.PI_TYPE: C.PLUG_TYPE_MISC,
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35 C.PI_DEPENDENCIES: ["MERGE_REQUESTS"],
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36 C.PI_MAIN: "MercurialHandler",
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37 C.PI_HANDLER: "no",
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38 C.PI_DESCRIPTION: _("""Merge request handler for Mercurial""")
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39 }
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40
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41 SHORT_DESC = D_("handle Mercurial repository")
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42 CLEAN_RE = re.compile(r'[^\w -._]', flags=re.UNICODE)
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43
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44
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45 class MercurialProtocol(async_process.CommandProtocol):
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46 """handle hg commands"""
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47 name = "Mercurial"
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48 command = None
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50 @classmethod
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51 def run(cls, path, command, *args, **kwargs):
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52 """Create a new MercurialRegisterProtocol and execute the given mercurial command.
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53
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54 @param path(unicode): path to the repository
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55 @param command(unicode): hg command to run
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56 @return D(bytes): stdout of the command
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57 """
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58 assert "path" not in kwargs
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59 kwargs["path"] = path
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60 # FIXME: we have to use this workaround because Twisted's protocol.ProcessProtocol
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61 # is not using new style classes. This can be removed once moved to
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62 # Python 3 (super can be used normally then).
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63 d = async_process.CommandProtocol.run.__func__(cls, command, *args, **kwargs)
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64 d.addErrback(utils.logError)
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65 return d
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67
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68 class MercurialHandler(object):
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69 data_types = ('mercurial_changeset',)
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70
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71 def __init__(self, host):
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72 log.info(_("Mercurial merge request handler initialization"))
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73 try:
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74 MercurialProtocol.command = which('hg')[0]
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75 except IndexError:
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76 raise exceptions.NotFound(_("Mercurial executable (hg) not found, "
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77 "can't use Mercurial handler"))
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78 self.host = host
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79 self._m = host.plugins['MERGE_REQUESTS']
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80 self._m.register('mercurial', self, self.data_types, SHORT_DESC)
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81
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82
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83 def check(self, repository):
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84 d = MercurialProtocol.run(repository, 'identify')
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85 d.addCallback(lambda __: True)
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86 d.addErrback(lambda __: False)
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87 return d
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88
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89 def export(self, repository):
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90 d = MercurialProtocol.run(repository, 'export', '-g', '-r', 'outgoing()',
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91 '--encoding=utf-8')
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92 d.addCallback(lambda data: data.decode('utf-8'))
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93 return d
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94
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95 def import_(self, repository, data, data_type, item_id, service, node, extra):
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96 parsed_data = self.parse(data)
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97 try:
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98 parsed_name = parsed_data[0]['commit_msg'].split('\n')[0]
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99 parsed_name = CLEAN_RE.sub('', parsed_name)[:40]
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100 except Exception:
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101 parsed_name = ''
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102 name = 'mr_{item_id}_{parsed_name}'.format(item_id=CLEAN_RE.sub('', item_id),
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103 parsed_name=parsed_name)
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104 return MercurialProtocol.run(repository, 'qimport', '-g', '--name', name,
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105 '--encoding=utf-8', '-', stdin=data)
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106
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107 def parse(self, data, data_type=None):
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108 lines = data.splitlines()
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109 total_lines = len(lines)
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110 patches = []
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111 while lines:
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112 patch = {}
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113 commit_msg = []
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114 diff = []
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115 state = 'init'
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116 if lines[0] != '# HG changeset patch':
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117 raise exceptions.DataError(_('invalid changeset signature'))
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118 # line index of this patch in the whole data
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119 patch_idx = total_lines - len(lines)
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120 del lines[0]
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121
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122 for idx, line in enumerate(lines):
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123 if state == 'init':
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124 if line.startswith('# '):
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125 if line.startswith('# User '):
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126 elems = line[7:].split()
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127 if not elems:
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128 continue
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129 last = elems[-1]
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130 if (last.startswith('<') and last.endswith('>')
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131 and '@' in last):
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132 patch[self._m.META_EMAIL] = elems.pop()[1:-1]
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133 patch[self._m.META_AUTHOR] = ' '.join(elems)
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134 elif line.startswith('# Date '):
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135 time_data = line[7:].split()
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136 if len(time_data) != 2:
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137 log.warning(_('unexpected time data: {data}')
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138 .format(data=line[7:]))
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139 continue
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140 patch[self._m.META_TIMESTAMP] = (int(time_data[0])
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141 + int(time_data[1]))
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142 elif line.startswith('# Node ID '):
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143 patch[self._m.META_HASH] = line[10:]
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144 elif line.startswith('# Parent '):
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145 patch[self._m.META_PARENT_HASH] = line[10:]
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146 else:
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147 state = 'commit_msg'
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148 if state == 'commit_msg':
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149 if line.startswith('diff --git a/'):
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150 state = 'diff'
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151 patch[self._m.META_DIFF_IDX] = patch_idx + idx + 1
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152 else:
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153 commit_msg.append(line)
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154 if state == 'diff':
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155 if line.startswith('# ') or idx == len(lines)-1:
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156 # a new patch is starting or we have reached end of patches
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157 if idx == len(lines)-1:
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158 # end of patches, we need to keep the line
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159 diff.append(line)
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160 patch[self._m.META_COMMIT_MSG] = '\n'.join(commit_msg)
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161 patch[self._m.META_DIFF] = '\n'.join(diff)
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162 patches.append(patch)
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163 if idx == len(lines)-1:
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164 del lines[:]
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165 else:
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166 del lines[:idx]
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167 break
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168 else:
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169 diff.append(line)
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170 return patches