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annotate roundup/instance.py @ 1980:8a6077ec701b

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*** empty log message ***
author Richard Jones <richard@users.sourceforge.net>
date Tue, 20 Jan 2004 00:05:07 +0000
parents 800b226bba58
children fc52d57c6c3e
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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 1.11 2003-12-06 02:46:34 richard Exp $
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19
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20 __doc__ = '''
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21 Tracker handling (open tracker).
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23 Backwards compatibility for the old-style "imported" trackers.
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24 '''
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25
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26 import os
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27
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28 class Vars:
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29 ''' I'm just a container '''
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30
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31 class Tracker:
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32 def __init__(self, tracker_home):
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33 self.tracker_home = tracker_home
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34 self.select_db = self._load_python('select_db.py')
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35 self.config = self._load_config('config.py')
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36 raise NotImplemented, 'this is *so* not finished'
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37 self.init = XXX
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38 self.Client = XXX
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39 self.MailGW = XXX
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41 def open(self):
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42 return self._load_config('schema.py').db
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43 self._load_config('security.py', db=db)
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46 def _load_python(self, file):
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47 file = os.path.join(tracker_home, file)
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48 vars = Vars()
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49 execfile(file, vars.__dict__)
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50 return vars
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53 class TrackerError(Exception):
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54 pass
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57 class OldStyleTrackers:
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58 def __init__(self):
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59 self.number = 0
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60 self.trackers = {}
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62 def open(self, tracker_home):
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63 ''' Open the tracker.
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64
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65 Raise ValueError if the tracker home doesn't exist.
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66 '''
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67 import imp
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68 # sanity check existence of tracker home
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69 if not os.path.exists(tracker_home):
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70 raise ValueError, 'no such directory: "%s"'%tracker_home
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71
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72 # sanity check tracker home contents
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73 for reqd in 'config dbinit select_db interfaces'.split():
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74 if not os.path.exists(os.path.join(tracker_home, '%s.py'%reqd)):
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75 raise TrackerError, 'File "%s.py" missing from tracker '\
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76 'home "%s"'%(reqd, tracker_home)
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77
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78 if self.trackers.has_key(tracker_home):
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79 return imp.load_package(self.trackers[tracker_home],
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80 tracker_home)
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81 self.number = self.number + 1
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82 modname = '_roundup_tracker_%s'%self.number
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83 self.trackers[tracker_home] = modname
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84
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85 # load the tracker
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86 tracker = imp.load_package(modname, tracker_home)
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87
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88 # ensure the tracker has all the required bits
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89 for required in 'config open init Client MailGW'.split():
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90 if not hasattr(tracker, required):
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91 raise TrackerError, \
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92 'Required tracker attribute "%s" missing'%required
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93
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94 return tracker
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96 OldStyleTrackers = OldStyleTrackers()
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97 def open(tracker_home):
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98 if os.path.exists(os.path.join(tracker_home, 'dbinit.py')):
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99 # user should upgrade...
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100 return OldStyleTrackers.open(tracker_home)
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101
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102 return Tracker(tracker_home)
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103
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104 # vim: set filetype=python ts=4 sw=4 et si
Roundup Issue Tracker: http://roundup-tracker.org/