Mercurial > libervia-backend
annotate src/plugins/plugin_merge_req_mercurial.py @ 2548:54b3853b55c0
plugin uri finder: plugin to find URIs in well-known locations
author | Goffi <goffi@goffi.org> |
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date | Sat, 31 Mar 2018 17:20:14 +0200 |
parents | a64887289931 |
children | 1362cabad225 |
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 |
2483 | 5 # Copyright (C) 2009-2018 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 from sat.core.i18n import _, D_ |
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21 from sat.core.constants import Const as C |
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22 from sat.core import exceptions |
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23 from twisted.internet import reactor, defer, protocol |
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24 from twisted.python.failure import Failure |
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25 from twisted.python.procutils import which |
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26 from sat.core.log import getLogger |
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27 log = getLogger(__name__) |
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28 |
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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: _(u"""Merge request handler for Mercurial""") |
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38 } |
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39 |
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40 SHORT_DESC = D_(u"handle Mercurial repository") |
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41 |
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42 |
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43 class MercurialProtocol(protocol.ProcessProtocol): |
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44 """handle hg commands""" |
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45 hg = None |
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46 |
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47 def __init__(self, deferred, stdin=None): |
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48 """ |
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49 @param deferred(defer.Deferred): will be called when command is completed |
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50 @param stdin(str, None): if not None, will be push to standard input |
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51 """ |
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52 self._stdin = stdin |
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53 self._deferred = deferred |
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54 self.data = [] |
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55 |
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56 def connectionMade(self): |
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57 if self._stdin is not None: |
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58 self.transport.write(self._stdin) |
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59 self.transport.closeStdin() |
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60 |
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61 def outReceived(self, data): |
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62 self.data.append(data) |
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63 |
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64 def errReceived(self, data): |
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65 self.data.append(data) |
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66 |
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67 def processEnded(self, reason): |
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68 data = u''.join([d.decode('utf-8') for d in self.data]) |
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69 if (reason.value.exitCode == 0): |
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70 log.debug(_('Mercurial command succeed')) |
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71 self._deferred.callback(data) |
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72 else: |
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73 msg = _(u"Can't complete Mercurial command (error code: {code}): {message}").format( |
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74 code = reason.value.exitCode, |
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75 message = data) |
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76 log.warning(msg) |
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77 self._deferred.errback(Failure(RuntimeError(msg))) |
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78 |
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79 @classmethod |
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80 def run(cls, path, command, *args, **kwargs): |
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81 """Create a new MercurialRegisterProtocol and execute the given mercurialctl command. |
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82 |
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83 @param path(unicode): path to the repository |
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84 @param command(unicode): command to run |
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85 @param *args(unicode): command arguments |
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86 @param **kwargs: used because Python2 doesn't handle normal kw args after *args |
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87 can only be: |
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88 - stdin(unicode, None): data to push to standard input |
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89 @return ((D)): |
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90 """ |
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91 stdin = kwargs.pop('stdin', None) |
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92 if kwargs: |
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93 raise exceptions.InternalError(u'only stdin is allowed as keyword argument') |
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94 if stdin is not None: |
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95 stdin = stdin.encode('utf-8') |
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96 d = defer.Deferred() |
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97 mercurial_prot = MercurialProtocol(d, stdin=stdin) |
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98 cmd_args = [cls.hg, command.encode('utf-8')] |
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99 cmd_args.extend([a.encode('utf-8') for a in args]) |
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100 reactor.spawnProcess(mercurial_prot, |
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101 cls.hg, |
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102 cmd_args, |
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103 path=path.encode('utf-8')) |
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104 return d |
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105 |
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106 |
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107 class MercurialHandler(object): |
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108 data_types = (u'mercurial_changeset',) |
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109 |
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110 def __init__(self, host): |
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111 log.info(_(u"Mercurial merge request handler initialization")) |
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112 try: |
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113 MercurialProtocol.hg = which('hg')[0] |
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114 except IndexError: |
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115 raise exceptions.NotFound(_(u"Mercurial executable (hg) not found, can't use Mercurial handler")) |
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116 self.host = host |
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117 self._m = host.plugins['MERGE_REQUESTS'] |
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118 self._m.register('mercurial', self, self.data_types, SHORT_DESC) |
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119 |
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120 def check(self, repository): |
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121 d = MercurialProtocol.run(repository, 'identify') |
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122 d.addCallback(lambda dummy: True) |
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123 d.addErrback(lambda dummy: False) |
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124 return d |
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125 |
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126 def export(self, repository): |
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127 return MercurialProtocol.run(repository, 'export', '-g', '-r', 'outgoing()', '--encoding=utf-8') |
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128 |
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129 def import_(self, repository, data, data_type, item_id, service, node, extra): |
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130 parsed_data = self.parse(data) |
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131 try: |
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132 parsed_name = parsed_data[0][u'commit_msg'].split(u'\n')[0] |
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133 parsed_name = parsed_name.replace(u' ', u'_')[:20] |
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134 except Exception: |
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135 parsed_name = u'' |
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136 name = u'mr_{item_id}_{parsed_name}'.format(item_id=item_id, parsed_name=parsed_name) |
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137 return MercurialProtocol.run(repository, 'qimport', '-g', '--name', name, '--encoding=utf-8', '-', stdin=data) |
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138 |
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139 def parse(self, data, data_type=None): |
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140 lines = data.splitlines() |
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141 total_lines = len(lines) |
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142 patches = [] |
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143 while lines: |
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144 patch = {} |
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145 commit_msg = [] |
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146 diff = [] |
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147 state = 'init' |
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148 if lines[0] != '# HG changeset patch': |
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149 raise exceptions.DataError(_(u'invalid changeset signature')) |
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150 # line index of this patch in the whole data |
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151 patch_idx = total_lines - len(lines) |
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152 del lines[0] |
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153 |
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154 for idx, line in enumerate(lines): |
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155 if state == 'init': |
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156 if line.startswith(u'# '): |
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157 if line.startswith(u'# User '): |
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158 elems = line[7:].split() |
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159 if not elems: |
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160 continue |
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161 last = elems[-1] |
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162 if last.startswith(u'<') and last.endswith(u'>') and u'@' in last: |
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163 patch[self._m.META_EMAIL] = elems.pop()[1:-1] |
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164 patch[self._m.META_AUTHOR] = u' '.join(elems) |
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165 elif line.startswith(u'# Date '): |
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166 time_data = line[7:].split() |
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167 if len(time_data) != 2: |
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168 log.warning(_(u'unexpected time data: {data}').format(data=line[7:])) |
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169 continue |
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170 patch[self._m.META_TIMESTAMP] = int(time_data[0]) + int(time_data[1]) |
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171 elif line.startswith(u'# Node ID '): |
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172 patch[self._m.META_HASH] = line[10:] |
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173 elif line.startswith(u'# Parent '): |
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174 patch[self._m.META_PARENT_HASH] = line[10:] |
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175 else: |
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176 state = 'commit_msg' |
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177 if state == 'commit_msg': |
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178 if line.startswith(u'diff --git a/'): |
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179 state = 'diff' |
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180 patch[self._m.META_DIFF_IDX] = patch_idx + idx + 1 |
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181 else: |
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182 commit_msg.append(line) |
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183 if state == 'diff': |
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184 if line.startswith(u'# ') or idx == len(lines)-1: |
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185 # a new patch is starting or we have reached end of patches |
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186 patch[self._m.META_COMMIT_MSG] = u'\n'.join(commit_msg) |
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187 patch[self._m.META_DIFF] = u'\n'.join(diff) |
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188 patches.append(patch) |
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189 if idx == len(lines)-1: |
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190 del lines[:] |
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191 else: |
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192 del lines[:idx] |
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193 break |
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194 else: |
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195 diff.append(line) |
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196 return patches |