Mercurial > bitten > bitten-test
annotate bitten/master.py @ 96:c8c36f34ff5a
Change model class pattern:
* Using normal constructor creates a new object, that can added to the database using the {{{insert()}}} method.
* For getting an existing object, the class method {{{fetch()}}} must be used. It's similar to {{{select()}}}, but returns only one object.
author | cmlenz |
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date | Sun, 17 Jul 2005 20:14:43 +0000 |
parents | 1984b2e01998 |
children | 5bf22bb87915 |
rev | line source |
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1 # -*- coding: iso8859-1 -*- |
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2 # |
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3 # Copyright (C) 2005 Christopher Lenz <cmlenz@gmx.de> |
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4 # |
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5 # Bitten is free software; you can redistribute it and/or |
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6 # modify it under the terms of the GNU General Public License as |
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7 # published by the Free Software Foundation; either version 2 of the |
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8 # License, or (at your option) any later version. |
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9 # |
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10 # Trac is distributed in the hope that it will be useful, |
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 # General Public License for more details. |
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14 # |
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15 # You should have received a copy of the GNU General Public License |
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16 # along with this program; if not, write to the Free Software |
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17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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18 # |
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19 # Author: Christopher Lenz <cmlenz@gmx.de> |
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20 |
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21 from datetime import datetime, timedelta |
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22 from itertools import ifilter |
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23 import logging |
42
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24 import os.path |
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25 import re |
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26 try: |
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27 set |
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28 except NameError: |
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29 from sets import Set as set |
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30 import time |
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31 |
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32 from trac.env import Environment |
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33 from bitten.model import BuildConfig, TargetPlatform, Build, BuildStep |
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34 from bitten.util import archive, beep, xmlio |
13
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35 |
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36 log = logging.getLogger('bitten.master') |
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37 |
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38 DEFAULT_CHECK_INTERVAL = 120 # 2 minutes |
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39 |
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40 |
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41 |
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42 class Master(beep.Listener): |
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43 |
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44 def __init__(self, env_path, ip, port, |
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45 check_interval=DEFAULT_CHECK_INTERVAL): |
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46 beep.Listener.__init__(self, ip, port) |
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47 self.profiles[OrchestrationProfileHandler.URI] = OrchestrationProfileHandler |
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48 self.env = Environment(env_path) |
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49 self.check_interval = check_interval |
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50 |
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51 self.slaves = {} |
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52 |
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53 # path to generated snapshot archives, key is (config name, revision) |
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54 self.snapshots = {} |
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55 for config in BuildConfig.select(self.env): |
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56 snapshots = archive.index(self.env, prefix=config.name) |
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57 for rev, format, path in snapshots: |
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58 self.snapshots[(config.name, rev, format)] = path |
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59 |
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60 self.schedule(self.check_interval, self._check_build_triggers) |
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61 |
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62 def close(self): |
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63 # Remove all pending builds |
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64 for build in Build.select(self.env, status=Build.PENDING): |
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65 build.delete() |
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66 beep.Listener.close(self) |
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67 |
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68 def _check_build_triggers(self, when): |
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69 self.schedule(self.check_interval, self._check_build_triggers) |
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70 |
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71 repos = self.env.get_repository() |
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72 try: |
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73 repos.sync() |
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74 |
45 | 75 for config in BuildConfig.select(self.env): |
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76 log.debug('Checking for changes to "%s" at %s', config.label, |
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77 config.path) |
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78 node = repos.get_node(config.path) |
56 | 79 for path, rev, chg in node.get_history(): |
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80 enqueued = False |
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81 for platform in TargetPlatform.select(self.env, config.name): |
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82 # Check whether the latest revision of the configuration |
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83 # has already been built on this platform |
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84 builds = Build.select(self.env, config.name, rev, |
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85 platform.id) |
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86 if not list(builds): |
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87 log.info('Enqueuing build of configuration "%s" at ' |
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88 'revision [%s] on %s', config.name, rev, |
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89 platform.name) |
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90 build = Build(self.env) |
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91 build.config = config.name |
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92 build.rev = str(rev) |
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93 build.rev_time = repos.get_changeset(rev).date |
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94 build.platform = platform.id |
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95 build.insert() |
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96 enqueued = True |
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97 if enqueued: |
56 | 98 break |
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99 finally: |
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100 repos.close() |
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101 |
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102 self.schedule(self.check_interval * 0.2, self._check_build_queue) |
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103 self.schedule(self.check_interval * 1.8, self._cleanup_snapshots) |
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104 |
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105 def _check_build_queue(self, when): |
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106 if not self.slaves: |
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107 return |
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108 log.debug('Checking for pending builds...') |
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109 for build in Build.select(self.env, status=Build.PENDING): |
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110 for slave in self.slaves.get(build.platform, []): |
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111 active_builds = Build.select(self.env, slave=slave.name, |
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112 status=Build.IN_PROGRESS) |
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113 if not list(active_builds): |
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114 slave.send_initiation(build) |
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115 return |
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116 |
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117 def _cleanup_snapshots(self, when): |
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118 log.debug('Checking for unused snapshot archives...') |
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119 for (config, rev, format), path in self.snapshots.items(): |
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120 keep = False |
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121 for build in Build.select(self.env, config=config, rev=rev): |
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122 if build.status not in (Build.SUCCESS, Build.FAILURE): |
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123 keep = True |
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124 break |
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125 if not keep: |
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126 log.info('Removing unused snapshot %s', path) |
92
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127 os.unlink(path) |
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128 del self.snapshots[(config, rev, format)] |
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129 |
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130 def get_snapshot(self, build, format): |
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131 snapshot = self.snapshots.get((build.config, build.rev, format)) |
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132 if not snapshot: |
96 | 133 config = BuildConfig.fetch(self.env, build.config) |
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134 snapshot = archive.pack(self.env, path=config.path, rev=build.rev, |
92
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135 prefix=config.name, format=format) |
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136 log.info('Prepared snapshot archive at %s' % snapshot) |
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137 self.snapshots[(build.config, build.rev, format)] = snapshot |
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138 return snapshot |
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139 |
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140 def register(self, handler): |
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141 any_match = False |
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142 for config in BuildConfig.select(self.env): |
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143 for platform in TargetPlatform.select(self.env, config=config.name): |
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144 if not platform.id in self.slaves: |
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145 self.slaves[platform.id] = set() |
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146 match = True |
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147 for property, pattern in ifilter(None, platform.rules): |
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148 try: |
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149 if not re.match(pattern, handler.info.get(property)): |
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150 match = False |
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151 break |
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152 except re.error, e: |
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153 log.error('Invalid platform matching pattern "%s"', |
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154 pattern, exc_info=True) |
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155 match = False |
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156 break |
84 | 157 if match: |
96 | 158 log.debug('Slave %s matched target platform %s', |
159 handler.name, platform.name) | |
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160 self.slaves[platform.id].add(handler) |
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161 any_match = True |
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162 |
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163 if not any_match: |
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164 log.warning('Slave %s does not match any of the configured target ' |
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165 'platforms', handler.name) |
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166 return False |
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167 |
95
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168 self.schedule(self.check_interval * 0.2, self._check_build_queue) |
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169 |
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170 log.info('Registered slave "%s"', handler.name) |
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171 return True |
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172 |
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173 def unregister(self, handler): |
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174 for slaves in self.slaves.values(): |
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175 slaves.discard(handler) |
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176 |
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177 for build in Build.select(self.env, slave=handler.name, |
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178 status=Build.IN_PROGRESS): |
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179 log.info('Build [%s] of "%s" by %s cancelled', build.rev, |
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180 build.config, handler.name) |
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181 build.slave = None |
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182 build.status = Build.PENDING |
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183 build.started = 0 |
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184 build.update() |
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185 break |
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186 log.info('Unregistered slave "%s"', handler.name) |
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187 |
56 | 188 |
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189 class OrchestrationProfileHandler(beep.ProfileHandler): |
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190 """Handler for communication on the Bitten build orchestration profile from |
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191 the perspective of the build master. |
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192 """ |
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193 URI = 'http://bitten.cmlenz.net/beep/orchestration' |
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194 |
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195 def handle_connect(self): |
18
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196 self.master = self.session.listener |
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197 assert self.master |
69 | 198 self.env = self.master.env |
199 assert self.env | |
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200 self.name = None |
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201 self.info = {} |
24
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202 |
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203 def handle_disconnect(self): |
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204 self.master.unregister(self) |
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205 |
88 | 206 def handle_msg(self, msgno, payload): |
207 assert payload.content_type == beep.BEEP_XML | |
208 elem = xmlio.parse(payload.body) | |
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209 |
51
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210 if elem.name == 'register': |
69 | 211 self.name = elem.attr['name'] |
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212 for child in elem.children(): |
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213 if child.name == 'platform': |
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214 self.info[Build.MACHINE] = child.gettext() |
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215 self.info[Build.PROCESSOR] = child.attr.get('processor') |
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216 elif child.name == 'os': |
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217 self.info[Build.OS_NAME] = child.gettext() |
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218 self.info[Build.OS_FAMILY] = child.attr.get('family') |
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219 self.info[Build.OS_VERSION] = child.attr.get('version') |
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220 self.info[Build.IP_ADDRESS] = self.session.addr[0] |
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221 |
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222 if not self.master.register(self): |
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223 xml = xmlio.Element('error', code=550)[ |
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224 'Nothing for you to build here, please move along' |
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225 ] |
88 | 226 self.channel.send_err(msgno, beep.Payload(xml)) |
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227 return |
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228 |
29 | 229 xml = xmlio.Element('ok') |
88 | 230 self.channel.send_rpy(msgno, beep.Payload(xml)) |
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231 |
56 | 232 def send_initiation(self, build): |
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233 log.debug('Initiating build of "%s" on slave %s', build.config, |
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234 self.name) |
42
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235 |
88 | 236 def handle_reply(cmd, msgno, ansno, payload): |
42
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237 if cmd == 'ERR': |
88 | 238 if payload.content_type == beep.BEEP_XML: |
239 elem = xmlio.parse(payload.body) | |
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240 if elem.name == 'error': |
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241 log.warning('Slave %s refused build request: %s (%d)', |
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242 self.name, elem.gettext(), |
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243 int(elem.attr['code'])) |
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244 return |
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245 |
88 | 246 elem = xmlio.parse(payload.body) |
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247 assert elem.name == 'proceed' |
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248 type = encoding = None |
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249 for child in elem.children('accept'): |
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250 type, encoding = child.attr['type'], child.attr.get('encoding') |
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251 if (type, encoding) in (('application/tar', 'gzip'), |
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252 ('application/tar', 'bzip2'), |
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253 ('application/tar', None), |
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254 ('application/zip', None)): |
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255 break |
56 | 256 type = None |
51
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257 if not type: |
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258 xml = xmlio.Element('error', code=550)[ |
63
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259 'None of the accepted archive formats supported' |
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260 ] |
88 | 261 self.channel.send_err(beep.Payload(xml)) |
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262 return |
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263 self.send_snapshot(build, type, encoding) |
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264 |
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265 xml = xmlio.Element('build', recipe='recipe.xml') |
88 | 266 self.channel.send_msg(beep.Payload(xml), handle_reply=handle_reply) |
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267 |
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268 def send_snapshot(self, build, type, encoding): |
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269 |
88 | 270 def handle_reply(cmd, msgno, ansno, payload): |
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271 if cmd == 'ERR': |
88 | 272 assert payload.content_type == beep.BEEP_XML |
273 elem = xmlio.parse(payload.body) | |
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274 if elem.name == 'error': |
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275 log.warning('Slave %s did not accept archive: %s (%d)', |
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276 self.name, elem.gettext(), |
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277 int(elem.attr['code'])) |
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278 |
56 | 279 if cmd == 'ANS': |
94 | 280 db = self.env.get_db_cnx() |
88 | 281 elem = xmlio.parse(payload.body) |
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282 |
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283 if elem.name == 'started': |
56 | 284 build.slave = self.name |
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285 build.slave_info.update(self.info) |
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286 build.started = int(_parse_iso_datetime(elem.attr['time'])) |
56 | 287 build.status = Build.IN_PROGRESS |
96 | 288 log.info('Slave %s started build %d ("%s" as of [%s])', |
289 self.name, build.id, build.config, build.rev) | |
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290 |
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291 elif elem.name == 'step': |
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292 log.info('Slave completed step "%s"', elem.attr['id']) |
96 | 293 step = BuildStep(self.env, build=build.id, |
294 name=elem.attr['id'], | |
295 description=elem.attr.get('description'), | |
296 log=elem.gettext().strip()) | |
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297 step.started = int(_parse_iso_datetime(elem.attr['time'])) |
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298 step.stopped = step.started + int(elem.attr['duration']) |
56 | 299 if elem.attr['result'] == 'failure': |
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300 log.warning('Step failed: %s', elem.gettext()) |
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301 step.status = BuildStep.FAILURE |
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302 else: |
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303 step.status = BuildStep.SUCCESS |
94 | 304 step.insert(db=db) |
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305 |
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306 elif elem.name == 'completed': |
96 | 307 log.info('Slave %s completed build %d ("%s" as of [%s])', |
308 self.name, build.id, build.config, build.rev) | |
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309 build.stopped = int(_parse_iso_datetime(elem.attr['time'])) |
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310 if elem.attr['result'] == 'failure': |
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311 build.status = Build.FAILURE |
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312 else: |
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313 build.status = Build.SUCCESS |
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314 |
70 | 315 elif elem.name == 'aborted': |
96 | 316 log.info('Slave "%s" aborted build %d ("%s" as of [%s])', |
317 self.name, build.id, build.config, build.rev) | |
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318 build.slave = None |
69 | 319 build.started = 0 |
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320 build.status = Build.PENDING |
94 | 321 build.slave_info = {} |
322 for step in BuildStep.select(self.env, build=build.id, | |
323 db=db): | |
324 step.delete(db=db) | |
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325 |
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326 elif elem.name == 'error': |
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327 build.status = Build.FAILURE |
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328 |
94 | 329 build.update(db=db) |
330 db.commit() | |
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331 |
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332 snapshot_format = { |
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333 ('application/tar', 'bzip2'): 'bzip2', |
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334 ('application/tar', 'gzip'): 'gzip', |
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335 ('application/tar', None): 'tar', |
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336 ('application/zip', None): 'zip', |
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337 }[(type, encoding)] |
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338 snapshot_path = self.master.get_snapshot(build, snapshot_format) |
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339 snapshot_name = os.path.basename(snapshot_path) |
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340 message = beep.Payload(file(snapshot_path), content_type=type, |
88 | 341 content_disposition=snapshot_name, |
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342 content_encoding=encoding) |
42
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343 self.channel.send_msg(message, handle_reply=handle_reply) |
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344 |
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345 |
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346 def _parse_iso_datetime(string): |
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347 """Minimal parser for ISO date-time strings. |
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348 |
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349 Return the time as floating point number. Only handles UTC timestamps |
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350 without time zone information.""" |
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351 try: |
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352 string = string.split('.', 1)[0] # strip out microseconds |
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353 secs = time.mktime(time.strptime(string, '%Y-%m-%dT%H:%M:%S')) |
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354 tzoffset = time.timezone |
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355 if time.daylight: |
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356 tzoffset = time.altzone |
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357 return secs - tzoffset |
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358 except ValueError, e: |
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359 raise ValueError, 'Invalid ISO date/time %s (%s)' % (string, e) |
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360 |
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361 |
31 | 362 def main(): |
56 | 363 from bitten import __version__ as VERSION |
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364 from optparse import OptionParser |
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365 |
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366 parser = OptionParser(usage='usage: %prog [options] env-path', |
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367 version='%%prog %s' % VERSION) |
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368 parser.add_option('-p', '--port', action='store', type='int', dest='port', |
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369 help='port number to use') |
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370 parser.add_option('-H', '--host', action='store', dest='host', |
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371 metavar='HOSTNAME', |
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372 help='the host name or IP address to bind to') |
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373 parser.add_option('-l', '--log', dest='logfile', metavar='FILENAME', |
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374 help='write log messages to FILENAME') |
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375 parser.add_option('-i', '--interval', dest='interval', metavar='SECONDS', |
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376 default=DEFAULT_CHECK_INTERVAL, type='int', |
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377 help='poll interval for changeset detection') |
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378 parser.add_option('--debug', action='store_const', dest='loglevel', |
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379 const=logging.DEBUG, help='enable debugging output') |
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380 parser.add_option('-v', '--verbose', action='store_const', dest='loglevel', |
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381 const=logging.INFO, help='print as much as possible') |
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382 parser.add_option('-q', '--quiet', action='store_const', dest='loglevel', |
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383 const=logging.ERROR, help='print as little as possible') |
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384 parser.set_defaults(port=7633, loglevel=logging.WARNING) |
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385 options, args = parser.parse_args() |
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386 |
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387 if len(args) < 1: |
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388 parser.error('incorrect number of arguments') |
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389 env_path = args[0] |
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390 |
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391 # Configure logging |
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392 log = logging.getLogger('bitten') |
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393 log.setLevel(options.loglevel) |
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394 handler = logging.StreamHandler() |
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395 if options.logfile: |
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396 handler.setLevel(logging.WARNING) |
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397 else: |
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398 handler.setLevel(options.loglevel) |
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399 formatter = logging.Formatter('%(message)s') |
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400 handler.setFormatter(formatter) |
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401 log.addHandler(handler) |
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402 if options.logfile: |
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403 handler = logging.FileHandler(options.logfile) |
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404 handler.setLevel(options.loglevel) |
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405 formatter = logging.Formatter('%(asctime)s [%(name)s] %(levelname)s: ' |
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406 '%(message)s') |
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407 handler.setFormatter(formatter) |
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408 log.addHandler(handler) |
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409 |
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410 port = options.port |
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411 if not (1 <= port <= 65535): |
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412 parser.error('port must be an integer in the range 1-65535') |
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413 |
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414 host = options.host |
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415 if not host: |
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416 import socket |
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417 ip = socket.gethostbyname(socket.gethostname()) |
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418 try: |
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419 host = socket.gethostbyaddr(ip)[0] |
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420 except socket.error, e: |
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421 log.warning('Reverse host name lookup failed (%s)', e) |
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422 host = ip |
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423 |
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Make the repository poll interval configurable. It now defaults to 2 minutes instead of 10 seconds.
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424 master = Master(env_path, host, port, check_interval=options.interval) |
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425 try: |
42
efa525876b1e
Basic infrastructure for transmission of snapshot archives to build slaves. See #8.
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426 master.run(timeout=5.0) |
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427 except KeyboardInterrupt: |
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The build master now gracefully exits by first terminating all active sessions. Fixes #7.
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428 master.quit() |
31 | 429 |
430 if __name__ == '__main__': | |
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Exit the slave script when the master disconnects; and other minor fixes.
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431 main() |