Mercurial > libervia-backend

annotate sat/plugins/plugin_merge_req_mercurial.py @ 2886:b06cb71079fa

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core (xmpp): new networkEnabled() and networkDisabled() methods: those methods can be called by platform specific plugins when network is known to be (un)available. This way, connection attempts can be cancelled when no network is available, saving resources (notably battery on mobile devices), or attempts can be restarted immediately when network is known to be available again.
author Goffi <goffi@goffi.org>
date Sat, 06 Apr 2019 19:05:57 +0200
parents 181735d1b062
children ab2696e34d29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 # 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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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: _(u"""Merge request handler for Mercurial""")
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39 }
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40
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41 SHORT_DESC = D_(u"handle Mercurial repository")
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42 CLEAN_RE = re.compile(ur'[^\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 = u"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 """
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57 assert u"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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66
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67 class MercurialHandler(object):
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68 data_types = (u'mercurial_changeset',)
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69
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70 def __init__(self, host):
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71 log.info(_(u"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(_(u"Mercurial executable (hg) not found, "
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76 u"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 return MercurialProtocol.run(repository, 'export', '-g', '-r', 'outgoing()',
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90 '--encoding=utf-8')
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91
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92 def import_(self, repository, data, data_type, item_id, service, node, extra):
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93 parsed_data = self.parse(data)
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94 try:
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95 parsed_name = parsed_data[0][u'commit_msg'].split(u'\n')[0]
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96 parsed_name = CLEAN_RE.sub(u'', parsed_name)[:40]
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97 except Exception:
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98 parsed_name = u''
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99 name = u'mr_{item_id}_{parsed_name}'.format(item_id=CLEAN_RE.sub(u'', item_id),
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100 parsed_name=parsed_name)
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101 return MercurialProtocol.run(repository, 'qimport', '-g', '--name', name,
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102 '--encoding=utf-8', '-', stdin=data)
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103
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104 def parse(self, data, data_type=None):
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105 lines = data.splitlines()
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106 total_lines = len(lines)
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107 patches = []
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108 while lines:
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109 patch = {}
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110 commit_msg = []
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111 diff = []
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112 state = 'init'
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113 if lines[0] != '# HG changeset patch':
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114 raise exceptions.DataError(_(u'invalid changeset signature'))
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115 # line index of this patch in the whole data
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116 patch_idx = total_lines - len(lines)
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117 del lines[0]
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118
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119 for idx, line in enumerate(lines):
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120 if state == 'init':
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121 if line.startswith(u'# '):
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122 if line.startswith(u'# User '):
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123 elems = line[7:].split()
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124 if not elems:
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125 continue
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126 last = elems[-1]
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127 if (last.startswith(u'<') and last.endswith(u'>')
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128 and u'@' in last):
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129 patch[self._m.META_EMAIL] = elems.pop()[1:-1]
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130 patch[self._m.META_AUTHOR] = u' '.join(elems)
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131 elif line.startswith(u'# Date '):
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132 time_data = line[7:].split()
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133 if len(time_data) != 2:
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134 log.warning(_(u'unexpected time data: {data}')
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135 .format(data=line[7:]))
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136 continue
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137 patch[self._m.META_TIMESTAMP] = (int(time_data[0])
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138 + int(time_data[1]))
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139 elif line.startswith(u'# Node ID '):
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140 patch[self._m.META_HASH] = line[10:]
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141 elif line.startswith(u'# Parent '):
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142 patch[self._m.META_PARENT_HASH] = line[10:]
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143 else:
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144 state = 'commit_msg'
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145 if state == 'commit_msg':
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146 if line.startswith(u'diff --git a/'):
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147 state = 'diff'
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148 patch[self._m.META_DIFF_IDX] = patch_idx + idx + 1
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149 else:
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150 commit_msg.append(line)
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151 if state == 'diff':
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152 if line.startswith(u'# ') or idx == len(lines)-1:
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153 # a new patch is starting or we have reached end of patches
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154 if idx == len(lines)-1:
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155 # end of patches, we need to keep the line
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156 diff.append(line)
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157 patch[self._m.META_COMMIT_MSG] = u'\n'.join(commit_msg)
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158 patch[self._m.META_DIFF] = u'\n'.join(diff)
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159 patches.append(patch)
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160 if idx == len(lines)-1:
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161 del lines[:]
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162 else:
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163 del lines[:idx]
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164 break
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165 else:
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166 diff.append(line)
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167 return patches