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annotate roundup/instance.py @ 2892:2eae5848912d

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always honor indexme property on Strings (patch [SF#063711])
author Richard Jones <richard@users.sourceforge.net>
date Wed, 10 Nov 2004 22:22:59 +0000
parents bc72b1c7319b
children f50b867747c9
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18 # $Id: instance.py,v 1.30 2004-11-10 08:58:47 a1s Exp $
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19
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20 '''Tracker handling (open tracker).
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21
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22 Backwards compatibility for the old-style "imported" trackers.
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23 '''
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24 __docformat__ = 'restructuredtext'
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25
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26 import os
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27 from roundup import configuration, mailgw, rlog
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28 from roundup import hyperdb, backends
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29 from roundup.cgi import client, templating
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30
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31 class Vars:
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32 def __init__(self, vars):
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33 self.__dict__.update(vars)
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34
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35 class Tracker:
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36 def __init__(self, tracker_home, optimize=0):
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37 """New-style tracker instance constructor
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38
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39 Parameters:
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40 tracker_home:
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41 tracker home directory
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42 optimize:
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43 if set, precompile html templates
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44
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45 """
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46 self.tracker_home = tracker_home
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47 self.optimize = optimize
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48 self.config = configuration.CoreConfig(tracker_home)
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49 self.cgi_actions = {}
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50 self.templating_utils = {}
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51 self.load_interfaces()
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52 self.templates = templating.Templates(self.config["TEMPLATES"])
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53 self.backend = backends.get_backend(self.get_backend_name())
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54 if self.optimize:
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55 self.templates.precompileTemplates()
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56 # initialize tracker extensions
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57 for extension in self.get_extensions('extensions'):
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58 extension(self)
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59 # load database detectors
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60 self.detectors = self.get_extensions('detectors')
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61 # db_open is set to True after first open()
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62 self.db_open = 0
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63
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64 def get_backend_name(self):
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65 o = __builtins__['open']
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66 f = o(os.path.join(self.tracker_home, 'db', 'backend_name'))
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67 name = f.readline().strip()
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68 f.close()
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69 return name
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70
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71 def open(self, name=None):
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72 # load the database schema
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73 # we cannot skip this part even if self.optimize is set
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74 # because the schema has security settings that must be
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75 # applied to each database instance
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76 backend = self.backend
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77 vars = {
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78 'Class': backend.Class,
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79 'FileClass': backend.FileClass,
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80 'IssueClass': backend.IssueClass,
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81 'String': hyperdb.String,
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82 'Password': hyperdb.Password,
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83 'Date': hyperdb.Date,
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84 'Link': hyperdb.Link,
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85 'Multilink': hyperdb.Multilink,
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86 'Interval': hyperdb.Interval,
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87 'Boolean': hyperdb.Boolean,
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88 'Number': hyperdb.Number,
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89 'db': backend.Database(self.config, name)
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90 }
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91 self._load_python('schema.py', vars)
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92 db = vars['db']
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93
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94 if self.optimize:
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95 # use preloaded detectors
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96 detectors = self.detectors
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97 else:
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98 # reload extensions and detectors
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99 for extension in self.get_extensions('extensions'):
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100 extension(self)
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101 detectors = self.get_extensions('detectors')
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102 # apply the detectors
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103 for detector in detectors:
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104 detector(db)
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105 # if we are running in debug mode
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106 # or this is the first time the database is opened,
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107 # do database upgrade checks
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108 if not (self.optimize and self.db_open):
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109 db.post_init()
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110 self.db_open = 1
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111 return db
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112
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113 def load_interfaces(self):
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114 """load interfaces.py (if any), initialize Client and MailGW attrs"""
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115 vars = {}
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116 if os.path.isfile(os.path.join(self.tracker_home, 'interfaces.py')):
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117 self._load_python('interfaces.py', vars)
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118 self.Client = vars.get('Client', client.Client)
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119 self.MailGW = vars.get('MailGW', mailgw.MailGW)
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120
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121 def get_extensions(self, dirname):
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122 """Load python extensions
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123
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124 Parameters:
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125 dirname:
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126 extension directory name relative to tracker home
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127
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128 Return value:
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129 list of init() functions for each extension
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130
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131 """
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132 extensions = []
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133 dirpath = os.path.join(self.tracker_home, dirname)
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134 if os.path.isdir(dirpath):
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135 for name in os.listdir(dirpath):
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136 if not name.endswith('.py'):
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137 continue
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138 vars = {}
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139 self._load_python(os.path.join(dirname, name), vars)
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140 extensions.append(vars['init'])
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141 return extensions
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142
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143 def init(self, adminpw):
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144 db = self.open('admin')
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145 self._load_python('initial_data.py', {'db': db, 'adminpw': adminpw,
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146 'admin_email': self.config['ADMIN_EMAIL']})
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147 db.commit()
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148 db.close()
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149
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150 def exists(self):
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151 return self.backend.db_exists(self.config)
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152
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153 def nuke(self):
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154 self.backend.db_nuke(self.config)
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155
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156 def _load_python(self, file, vars):
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157 file = os.path.join(self.tracker_home, file)
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158 execfile(file, vars)
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159 return vars
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160
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161 def registerAction(self, name, action):
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162 self.cgi_actions[name] = action
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163
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164 def registerUtil(self, name, function):
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165 self.templating_utils[name] = function
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166
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167 class TrackerError(Exception):
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168 pass
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169
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170
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171 class OldStyleTrackers:
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172 def __init__(self):
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173 self.number = 0
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174 self.trackers = {}
204
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175
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176 def open(self, tracker_home, optimize=0):
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177 """Open the tracker.
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178
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179 Parameters:
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180 tracker_home:
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181 tracker home directory
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182 optimize:
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183 if set, precompile html templates
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184
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185 Raise ValueError if the tracker home doesn't exist.
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186
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187 """
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188 import imp
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189 # sanity check existence of tracker home
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190 if not os.path.exists(tracker_home):
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191 raise ValueError, 'no such directory: "%s"'%tracker_home
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192
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193 # sanity check tracker home contents
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194 for reqd in 'config dbinit select_db interfaces'.split():
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195 if not os.path.exists(os.path.join(tracker_home, '%s.py'%reqd)):
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196 raise TrackerError, 'File "%s.py" missing from tracker '\
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197 'home "%s"'%(reqd, tracker_home)
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198
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199 if self.trackers.has_key(tracker_home):
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200 return imp.load_package(self.trackers[tracker_home],
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201 tracker_home)
204
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202 self.number = self.number + 1
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203 modname = '_roundup_tracker_%s'%self.number
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204 self.trackers[tracker_home] = modname
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205
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206 # load the tracker
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207 tracker = imp.load_package(modname, tracker_home)
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208
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209 # ensure the tracker has all the required bits
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210 for required in 'open init Client MailGW'.split():
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211 if not hasattr(tracker, required):
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212 raise TrackerError, \
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213 'Required tracker attribute "%s" missing'%required
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214
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215 # load and apply the config
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216 tracker.config = configuration.CoreConfig(tracker_home)
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217 tracker.dbinit.config = tracker.config
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218
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219 tracker.optimize = optimize
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220 tracker.templates = templating.Templates(tracker.config["TEMPLATES"])
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221 if optimize:
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222 tracker.templates.precompileTemplates()
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223
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224 return tracker
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225
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226 OldStyleTrackers = OldStyleTrackers()
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227 def open(tracker_home, optimize=0):
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228 if os.path.exists(os.path.join(tracker_home, 'dbinit.py')):
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229 # user should upgrade...
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230 return OldStyleTrackers.open(tracker_home, optimize=optimize)
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231
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232 return Tracker(tracker_home, optimize=optimize)
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233
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234 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/