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annotate roundup/instance.py @ 7558:c8a931aa7514

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fix(i18n): issue2551184 - improve i18n handling Apply patch to make sure that the dates tests use the locale files in the deployed tracker and not other roundup files.
author Marcus Preisch
date Thu, 20 Jul 2023 20:08:28 -0400
parents 07ce4e4110f5
children 82bbb95e5690 771d7c43c76f
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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
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19 """Top-level tracker interface.
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20
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21 Open a tracker with:
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22
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23 >>> from roundup import instance
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24 >>> db = instance.open('path to tracker home')
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25
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26 The "db" handle you get back is the tracker's hyperdb which has the interface
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27 described in `roundup.hyperdb.Database`.
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28 """
2005
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29 __docformat__ = 'restructuredtext'
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30
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31 try:
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32 import builtins
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33 except ImportError:
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34 import __builtin__ as builtins
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35
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36 try:
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37 from collections.abc import Callable
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38 except ImportError:
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39 from collections import Callable
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40
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41 import os
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42 import sys
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43
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44 from roundup import configuration, mailgw
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45 from roundup import hyperdb, backends, actions
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46 from roundup.cgi import client, templating
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47 from roundup.cgi import actions as cgi_actions
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48 from roundup.exceptions import RoundupException
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49
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50
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51 class Tracker:
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52 def __init__(self, tracker_home, optimize=0):
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53 """New-style tracker instance constructor
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54
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55 Parameters:
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56 tracker_home:
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57 tracker home directory
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58 optimize:
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59 if set, precompile html templates
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60
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61 """
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62 self.tracker_home = tracker_home
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63 self.optimize = optimize
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64 # if set, call schema_hook after executing schema.py will get
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65 # same variables (in particular db) as schema.py main purpose is
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66 # for regression tests
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67 self.schema_hook = None
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68 self.config = configuration.CoreConfig(tracker_home)
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69 self.actions = {}
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70 self.cgi_actions = {}
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71 self.templating_utils = {}
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73 libdir = os.path.join(self.tracker_home, 'lib')
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74 self.libdir = os.path.isdir(libdir) and libdir or ''
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75
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76 self.load_interfaces()
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77 self.templates = templating.get_loader(self.config["TEMPLATES"],
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78 self.config["TEMPLATE_ENGINE"])
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79
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80 rdbms_backend = self.config.RDBMS_BACKEND
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81
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82 self.backend = backends.get_backend(rdbms_backend)
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83
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84 if self.optimize:
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85 self.templates.precompile()
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86 # initialize tracker extensions
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87 for extension in self.get_extensions('extensions'):
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88 extension(self)
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89 # load database schema
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90 self.schema = self._compile('schema.py')
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91 # load database detectors
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92 self.detectors = self.get_extensions('detectors')
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93 # db_open is set to True after first open()
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94 self.db_open = 0
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95
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96 def open(self, name=None):
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97 # load the database schema
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98 # we cannot skip this part even if self.optimize is set
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99 # because the schema has security settings that must be
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100 # applied to each database instance
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101 backend = self.backend
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102 env = {
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103 'Class': backend.Class,
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104 'FileClass': backend.FileClass,
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105 'IssueClass': backend.IssueClass,
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106 'String': hyperdb.String,
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107 'Password': hyperdb.Password,
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108 'Date': hyperdb.Date,
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109 'Link': hyperdb.Link,
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110 'Multilink': hyperdb.Multilink,
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111 'Interval': hyperdb.Interval,
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112 'Boolean': hyperdb.Boolean,
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113 'Number': hyperdb.Number,
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114 'Integer': hyperdb.Integer,
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115 'db': backend.Database(self.config, name)
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116 }
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117
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118 if self.optimize:
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119 # execute preloaded schema object
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120 self._exec(self.schema, env)
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121 if isinstance(self.schema_hook, Callable):
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122 self.schema_hook(**env)
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123 # use preloaded detectors
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124 detectors = self.detectors
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125 else:
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126 # execute the schema file
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127 self._execfile('schema.py', env)
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128 if isinstance(self.schema_hook, Callable):
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129 self.schema_hook(**env)
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130 # reload extensions and detectors
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131 for extension in self.get_extensions('extensions'):
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132 extension(self)
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133 detectors = self.get_extensions('detectors')
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134 db = env['db']
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135 db.tx_Source = None
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136 # Useful for script when multiple open calls happen. Scripts have
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137 # to inject the i18n object, there is currently no support for this
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138 if hasattr(self, 'i18n'):
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139 db.i18n = self.i18n
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140
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141 # apply the detectors
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142 for detector in detectors:
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143 detector(db)
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144 # if we are running in debug mode
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145 # or this is the first time the database is opened,
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146 # do database upgrade checks
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147 if not (self.optimize and self.db_open):
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148 # As a consistency check, ensure that every link property is
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149 # pointing at a defined class. Otherwise, the schema is
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150 # internally inconsistent. This is an important safety
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151 # measure as it protects against an accidental schema change
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152 # dropping a table while there are still links to the table;
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153 # once the table has been dropped, there is no way to get it
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154 # back, so it is important to drop it only if we are as sure
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155 # as possible that it is no longer needed.
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156 classes = db.getclasses()
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157 for classname in classes:
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158 cl = db.getclass(classname)
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159 for propname, prop in cl.getprops().items():
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160 if not isinstance(prop, (hyperdb.Link,
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161 hyperdb.Multilink)):
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162 continue
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163 linkto = prop.classname
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164 if linkto not in classes:
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165 raise ValueError("property %s.%s links to "
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166 "non-existent class %s"
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167 % (classname, propname, linkto))
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168
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169 self.db_open = 1
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170 # *Must* call post_init! It is not an error if called multiple times.
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171 db.post_init()
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172 return db
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173
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174 def load_interfaces(self):
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175 """load interfaces.py (if any), initialize Client and MailGW attrs"""
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176 env = {}
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177 if os.path.isfile(os.path.join(self.tracker_home, 'interfaces.py')):
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178 self._execfile('interfaces.py', env)
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179 self.Client = env.get('Client', client.Client)
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180 self.MailGW = env.get('MailGW', mailgw.MailGW)
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181 self.TemplatingUtils = env.get('TemplatingUtils',
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182 templating.TemplatingUtils)
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183
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184 def get_extensions(self, dirname):
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185 """Load python extensions
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186
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187 Parameters:
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188 dirname:
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189 extension directory name relative to tracker home
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190
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191 Return value:
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192 list of init() functions for each extension
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193
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194 """
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195 extensions = []
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196 dirpath = os.path.join(self.tracker_home, dirname)
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197 if os.path.isdir(dirpath):
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198 sys.path.insert(1, dirpath)
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199 for name in os.listdir(dirpath):
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200 if not name.endswith('.py'):
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201 continue
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202 env = {}
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203 self._execfile(os.path.join(dirname, name), env)
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204 extensions.append(env['init'])
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205 sys.path.remove(dirpath)
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206 return extensions
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207
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208 def init(self, adminpw, tx_Source=None):
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209 db = self.open('admin')
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210 db.tx_Source = tx_Source
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211 self._execfile('initial_data.py',
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212 {'db': db, 'adminpw': adminpw,
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213 'admin_email': self.config['ADMIN_EMAIL']})
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214 db.commit()
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215 db.close()
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216
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217 def exists(self):
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218 return self.backend.db_exists(self.config)
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219
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220 def nuke(self):
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221 self.backend.db_nuke(self.config)
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222
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223 def _compile(self, fname):
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224 fname = os.path.join(self.tracker_home, fname)
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225 with builtins.open(fname) as fnamed:
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226 return compile(fnamed.read(), fname, 'exec')
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227
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228 def _exec(self, obj, env):
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229 if self.libdir:
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230 sys.path.insert(1, self.libdir)
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231 exec(obj, env)
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232 if self.libdir:
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233 sys.path.remove(self.libdir)
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234 return env
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235
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236 def _execfile(self, fname, env):
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237 self._exec(self._compile(fname), env)
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238
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239 def registerAction(self, name, action):
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240
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241 # The logic here is this:
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242 # * if `action` derives from actions.Action,
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243 # it is executable as a generic action.
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244 # * if, moreover, it also derives from cgi.actions.Bridge,
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245 # it may in addition be called via CGI
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246 # * in all other cases we register it as a CGI action, without
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247 # any check (for backward compatibility).
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248 if issubclass(action, actions.Action):
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249 self.actions[name] = action
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250 if issubclass(action, cgi_actions.Bridge):
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251 self.cgi_actions[name] = action
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252 else:
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253 self.cgi_actions[name] = action
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254
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255 def registerUtil(self, name, function):
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256 self.templating_utils[name] = function
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257
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258
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259 class TrackerError(RoundupException):
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260 pass
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261
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262
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263 def open(tracker_home, optimize=0):
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264 if os.path.exists(os.path.join(tracker_home, 'dbinit.py')):
d2801a2b0a77 Initial implementation (half-baked) at new Tracker instance.
Richard Jones <richard@users.sourceforge.net>
parents: 1174
diff changeset
265 # user should upgrade...
6300
778a9f455067 Remove old code import imp, old style trackers db/backend_name
John Rouillard <rouilj@ieee.org>
parents: 6123
diff changeset
266 raise TrackerError("Old style trackers using dbinit.py "
778a9f455067 Remove old code import imp, old style trackers db/backend_name
John Rouillard <rouilj@ieee.org>
parents: 6123
diff changeset
267 "are not supported after release 2.0")
204
c1461733cbf9 Instances are now opened by a special function...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
268
2851
96626831def1 trackers got a 'templates' attribute, containing html templates collection...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2836
diff changeset
269 return Tracker(tracker_home, optimize=optimize)
204
c1461733cbf9 Instances are now opened by a special function...
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
270
2621
d344419d599d use new style config;
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2584
diff changeset
271 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/