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annotate roundup/demo.py @ 6747:d32d43e4a5ba

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wsgi can cache tracker instance enabled by feature flag. Patch by Marcus Priesch caches a loaded tracker instance and reuse it for future client sessions. It is enabled by a feature flag in wsgi.py since it arrived during the 2.2.0 beta period. The provided wsgi.py is modified to enable it. Testing is run with flag enabled and disabled. Ralf Schlatterbeck and Marcus tested it on one of their larger more complex trackers and it sped up the response time to a client request by a factor of 3 (270ms down to about 80-85ms).
author John Rouillard <rouilj@ieee.org>
date Sat, 02 Jul 2022 14:04:00 -0400
parents 5a3a386aa8e7
children 7147a4c833e9
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rev   line source
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1 #!/usr/bin/env python
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2 #
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3 # Copyright (c) 2003 Richard Jones (richard@mechanicalcat.net)
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4 #
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5 from __future__ import print_function
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6
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7 import errno
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8 import os
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9 import shutil
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10 import socket
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11 import sys
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12 import getopt
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13
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14 try:
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15 import urlparse
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16 except ImportError:
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17 import urllib.parse as urlparse
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18
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19 from roundup import configuration
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20 from roundup.scripts import roundup_server
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21
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22 # Path where demo instance files will be stored
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23 TRACKER_HOME = os.path.abspath('demo')
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24
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25
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26 def install_demo(home, backend, template):
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27 """Install a demo tracker
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28
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29 Parameters:
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30 home:
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31 tracker home directory path
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32 backend:
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33 database backend name
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34 template:
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35 tracker template
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36
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37 """
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38
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39 from roundup import init, instance, password
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40
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41 # set up the config for this tracker
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42 template_dir = os.path.join('share', 'roundup', 'templates', template)
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43
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44 # Load optional override ini file. Missing ini file is ignored.
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45 template_cfg = configuration.UserConfig(template_dir + "/config_ini.ini")
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46 config = configuration.CoreConfig(settings={
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47 i.name: i.get() for i in template_cfg.items()
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48 })
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49 config['TRACKER_HOME'] = home
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50 config['MAIL_DOMAIN'] = 'localhost'
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51 config['DATABASE'] = 'db'
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52 config['WEB_DEBUG'] = True
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53 if backend in ('mysql', 'postgresql'):
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54 config['RDBMS_HOST'] = 'localhost'
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55 config['RDBMS_USER'] = 'rounduptest'
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56 config['RDBMS_PASSWORD'] = 'rounduptest'
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57 config['RDBMS_NAME'] = 'rounduptest'
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58
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59 config['RDBMS_BACKEND'] = backend
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60
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61 # see if we need to clean up existing directory
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62 if os.path.exists(home):
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63 if os.path.exists(home + '/config.ini'):
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64 # clear everything out to avoid conflicts with former
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65 # extensions and detectors
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66 print("Nuking directory left from the previous demo instance.")
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67 shutil.rmtree(home)
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68 else:
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69 print("Error: Refusing to nuke non-tracker directory:")
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70 print(" %s" % home)
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71 sys.exit(1)
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72
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73 init.install(home, template_dir)
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74 # Remove config_ini.ini file from tracker_home (not template dir).
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75 # Ignore file not found - not all templates have
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76 # config_ini.ini files.
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77 try:
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78 os.remove(home + "/config_ini.ini")
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79 except OSError as e: # FileNotFound exception under py3
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80 if e.errno == 2:
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81 pass
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82 else:
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83 raise
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84
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85 # don't have email flying around
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86 nosyreaction = os.path.join(home, 'detectors', 'nosyreaction.py')
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87 if os.path.exists(nosyreaction):
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88 os.remove(nosyreaction)
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89 nosyreaction += 'c'
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90 if os.path.exists(nosyreaction):
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91 os.remove(nosyreaction)
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92
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93 # figure basic params for server
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94 hostname = 'localhost'
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95 # pick a fairly odd, random port
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96 port = 8917
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97 while 1:
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98 print('Trying to set up web server on port %d ...' % port,)
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99 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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100 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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101 try:
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102 s.connect((hostname, port))
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103 except socket.error as e:
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104 if not hasattr(e, 'args') or e.args[0] != errno.ECONNREFUSED:
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105 raise
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106 print('should be ok.')
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107 break
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108 else:
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109 s.close()
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110 print('already in use.')
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111 port += 100
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112 config['TRACKER_WEB'] = 'http://%s:%s/demo/' % (hostname, port)
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113
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114 # write the config
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115 config['INSTANT_REGISTRATION'] = 1
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116 config.save(os.path.join(home, config.INI_FILE))
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117
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118 # open the tracker and initialise
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119 tracker = instance.open(home)
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120 tracker.init(password.Password('admin'))
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121
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122 # add the "demo" user
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123 db = tracker.open('admin')
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124 # FIXME: Move tracker-specific demo initialization into the tracker
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125 # templates.
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126 if os.path.basename(template) == 'minimal':
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127 db.user.create(username='demo', password=password.Password('demo'),
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128 roles='User')
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129 else:
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130 db.user.create(username='demo', password=password.Password('demo'),
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131 realname='Demo User', roles='User')
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132 db.commit()
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133 db.close()
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134
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135
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136 def run_demo(home):
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137 """Run the demo tracker instance from its ``home`` directory"""
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138 print("Demo Tracker Home:", home)
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139
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140 cfg = configuration.CoreConfig(home)
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141 url = cfg["TRACKER_WEB"]
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142 hostname, port = urlparse.urlparse(url)[1].split(':')
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143 port = int(port)
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144 success_message = '''Server running - connect to:
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145 %(url)s
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146 1. Log in as "demo"/"demo" or "admin"/"admin".
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147 2. Hit Control-C to stop the server.
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148 3. Re-start the server by running "%(script)s" again.
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149 4. Reset the tracker by running "%(script)s nuke".
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150
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151 By default the demo tracker is set up to be accessed from "localhost".
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152 If you want to run it on a server,
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153 edit "%(datadir)s/config.ini"
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154 and set the "web" option in section "[tracker]" to your host name,
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155 then restart demo. If you want to change backend types, you must use "nuke".
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156
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157 ''' % dict(url=url, script=sys.argv[0], datadir=TRACKER_HOME)
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158
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159 # disable command line processing in roundup_server
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160 sys.argv = sys.argv[:1] + ['-p', str(port), '-n', hostname, 'demo=' + home]
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161 roundup_server.run(success_message=success_message)
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162
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163
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164 def usage(msg=''):
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165 if msg:
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166 print(msg)
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167 print("""\
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168 Usage: %(script)s [options] [nuke]
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169
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170 Run a demo server. Config and database files are created in
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171 %(datadir)s subdirectory of %(script)s dir.
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172
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173 'nuke' will re-initialize the demo instance, deleting the old data.
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174
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175 See docs/installation "For The Really Impatient" for more details.
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176
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177 Options:
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178 -h -- print this help message
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179 -t template -- specify the tracker template to use
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180 -b backend -- specify the database backend to use
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181 """ % dict(script=sys.argv[0], datadir=TRACKER_HOME+os.sep))
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182
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183
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184 def main():
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185 """Run a demo server for users to play with for instant gratification.
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186
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187 Sets up the web service on localhost. Disables nosy lists.
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188 """
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189
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190 try:
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191 opts, args = getopt.getopt(sys.argv[1:], 't:b:h')
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192 except getopt.GetoptError as e:
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193 usage(str(e))
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194 return 1
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195 for opt, _arg in opts:
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196 if opt == '-h':
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197 usage()
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198 return 0
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199
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200 home = os.path.abspath(TRACKER_HOME)
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201 nuke = args and args[0] == 'nuke'
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202 if not os.path.exists(home) or nuke:
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203 backend = 'anydbm'
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204 template = 'classic'
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205 for opt, arg in opts:
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206 if opt == '-t':
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207 template = arg
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208 elif opt == '-b':
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209 backend = arg
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210 if (len(args) > 1 or
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211 (len(args) == 1 and args[0] != 'nuke')):
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212 usage()
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213 return 1
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214
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215 print("Initializing demo instance in:\n %s" % home)
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216 install_demo(home, backend, template)
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217 elif opts:
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218 print("Error: Arguments are not allowed when running an existing demo.")
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219 print(" Use the 'nuke' command to start over.")
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220 sys.exit(1)
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221
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222 run_demo(home)
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223
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224
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225 if __name__ == '__main__':
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226 sys.exit(main())
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227
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228 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/