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effecteval now runs effects in the background, following the current song, and sends dmx output Ignore-this: 3f6a727a8b431cbb1fa1beb454dc3c4
author Drew Perttula <drewp@bigasterisk.com>
date Tue, 27 May 2014 06:29:00 +0000
parents a38414bd3929
children a4632a7b2e17
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1 #!bin/python
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2 from run_local import log
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3 from twisted.internet import reactor, task
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4 from twisted.internet.defer import inlineCallbacks
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5 import cyclone.web, cyclone.websocket, cyclone.httpclient
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6 import sys, optparse, logging, subprocess, json, re, time
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7 from rdflib import URIRef, RDF
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8
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9 sys.path.append(".")
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10 from light9 import networking, showconfig, Submaster, dmxclient
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11 from light9.rdfdb.syncedgraph import SyncedGraph
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12 from light9.curvecalc.curve import Curve
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13 from light9.namespaces import L9, DCTERMS
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14
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15 sys.path.append("/my/proj/homeauto/lib")
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16 sys.path.append("/home/drewp/projects/homeauto/lib")
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17 from cycloneerr import PrettyErrorHandler
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18
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19 class EffectEdit(cyclone.web.RequestHandler):
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20 def get(self):
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21 self.write(open("light9/effecteval/effect.html").read())
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22
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23 class EffectData(cyclone.websocket.WebSocketHandler):
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24 """
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25 stays alive for the life of the effect page
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26 """
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27 def connectionMade(self, *args, **kwargs):
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28 log.info("websocket opened")
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29 self.uri = URIRef(self.get_argument('uri'))
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30 self.sendMessage({'hello': repr(self)})
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31
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32 self.graph = self.settings.graph
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33 self.graph.addHandler(self.updateClient)
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34
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35 def updateClient(self):
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36 # todo: if client has dropped, abort and don't get any more
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37 # graph updates
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38 self.sendMessage({'code': self.graph.value(self.uri, L9['code'])})
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39
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40 def connectionLost(self, reason):
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41 log.info("websocket closed")
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42
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43 def messageReceived(self, message):
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44 log.info("got message %s" % message)
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45 # write a patch back to the graph
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46
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47 def uriFromCode(s):
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48 # i thought this was something a graph could do with its namespace manager
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49 if s.startswith('sub:'):
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50 return URIRef('http://light9.bigasterisk.com/show/dance2014/sub/' + s[4:])
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51 if s.startswith('song1:'):
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52 return URIRef('http://ex/effect/song1/' + s[6:])
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53 raise NotImplementedError
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54
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55 class EffectNode(object):
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56 def __init__(self, graph, uri):
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57 self.graph, self.uri = graph, uri
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58 self.graph.addHandler(self.prepare)
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59
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60 def prepare(self):
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61 self.code = self.graph.value(self.uri, L9['code'])
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62 m = re.match(r'^out = sub\((.*?), intensity=(.*?)\)', self.code)
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63 if not m:
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64 raise NotImplementedError
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65 subUri = uriFromCode(m.group(1))
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66 subs = Submaster.get_global_submasters(self.graph)
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67 self.sub = subs.get_sub_by_uri(subUri)
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68
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69 intensityCurve = uriFromCode(m.group(2))
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70 self.curve = Curve()
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71 self.curve.set_from_string(self.graph.value(intensityCurve, L9['points']))
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72
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73 def eval(self, songTime):
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74 # consider http://waxeye.org/ for a parser that can be used in py and js
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75 level = self.curve.eval(songTime)
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76 scaledSubs = self.sub * level
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77 return scaledSubs
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78
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79
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80 class EffectEval(PrettyErrorHandler, cyclone.web.RequestHandler):
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81 @inlineCallbacks
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82 def get(self):
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83 # return dmx list for that effect
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84 uri = URIRef(self.get_argument('uri'))
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85 response = yield cyclone.httpclient.fetch(
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86 networking.musicPlayer.path('time'))
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87 songTime = json.loads(response.body)['t']
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88
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89 node = EffectNode(self.settings.graph, uri)
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90 outSub = node.eval(songTime)
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91 self.write(json.dumps(outSub.get_dmx_list()))
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92
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93
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94 # Completely not sure where the effect background loop should
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95 # go. Another process could own it, and get this request repeatedly:
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96 class SongEffectsEval(PrettyErrorHandler, cyclone.web.RequestHandler):
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97 def get(self):
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98 song = URIRef(self.get_argument('song'))
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99 effects = effectsForSong(self.settings.graph, song)
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100 raise NotImplementedError
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101 self.write(maxDict(effectDmxDict(e) for e in effects))
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102 # return dmx dict for all effects in the song, already combined
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103
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104 # Or, we could own that loop, like this:
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105 @inlineCallbacks
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106 def effectLoop(graph):
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107 t1 = time.time()
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108 response = json.loads((yield cyclone.httpclient.fetch(
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109 networking.musicPlayer.path('time'))).body)
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110 song = URIRef(response['song'])
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111 songTime = response['t']
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112 # Possibilities to make this shut up about graph copies:
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113 # - implement the cheap readonly currentState response
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114 # - do multiple little currentState calls (in this code) over just
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115 # the required triples
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116 # - use addHandler instead and only fire dmx when there is a data
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117 # change (and also somehow call it when there is a time change)
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118
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119 outSubs = []
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120 with graph.currentState(tripleFilter=(song, L9['effect'], None)) as g:
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121 for effectUri in g.objects(song, L9['effect']):
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122 node = EffectNode(graph, effectUri)
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123 outSubs.append(node.eval(songTime))
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124 out = Submaster.sub_maxes(*outSubs)
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125 # out.get_levels() for a more readable view
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126 dmx = out.get_dmx_list()
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127
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128 if log.isEnabledFor(logging.DEBUG):
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129 log.debug("send dmx: %r", out.get_levels())
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130 yield dmxclient.outputlevels(dmx, twisted=True)
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131
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132 loopTime = time.time() - t1
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133 log.debug('loopTime %.1f ms', 1000 * loopTime)
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134
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135 class App(object):
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136 def __init__(self, show):
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137 self.show = show
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138 self.graph = SyncedGraph("effectEval")
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139 SFH = cyclone.web.StaticFileHandler
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140 self.cycloneApp = cyclone.web.Application(handlers=[
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141 (r'/()', SFH,
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142 {'path': 'light9/effecteval', 'default_filename': 'index.html'}),
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143 (r'/effect', EffectEdit),
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144 (r'/(websocket\.js)', SFH, {'path': 'light9/rdfdb/web/'}),
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145 (r'/(knockout-2\.2\.1\.js)', SFH, {'path': 'light9/subserver/'}),
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146 (r'/effect\.js', StaticCoffee, {'src': 'light9/effecteval/effect.coffee'}),
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147 (r'/effectData', EffectData),
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148 (r'/static/(.*)', SFH, {'path': 'static/'}),
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149 (r'/effect/eval', EffectEval),
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150 (r'/songEffects/eval', SongEffectsEval),
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151 ], debug=True, graph=self.graph)
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152 self.graph.initiallySynced.addCallback(self.launch)
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153
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154 def launch(self, *args):
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155 task.LoopingCall(effectLoop, self.graph).start(1)
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156
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157 class StaticCoffee(PrettyErrorHandler, cyclone.web.RequestHandler):
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158 def initialize(self, src):
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159 super(StaticCoffee, self).initialize()
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160 self.src = src
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161 def get(self):
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162 self.set_header('Content-Type', 'application/javascript')
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163 self.write(subprocess.check_output([
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164 '/usr/bin/coffee', '--compile', '--print', self.src]))
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165
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166
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167 if __name__ == "__main__":
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168 parser = optparse.OptionParser()
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169 parser.add_option('--show',
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170 help='show URI, like http://light9.bigasterisk.com/show/dance2008',
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171 default=showconfig.showUri())
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172 parser.add_option("-v", "--verbose", action="store_true",
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173 help="logging.DEBUG")
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174 parser.add_option("--twistedlog", action="store_true",
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175 help="twisted logging")
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176 (options, args) = parser.parse_args()
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177
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178 log.setLevel(logging.DEBUG if options.verbose else logging.INFO)
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179
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180 if not options.show:
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181 raise ValueError("missing --show http://...")
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182
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183 app = App(URIRef(options.show))
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184 if options.twistedlog:
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185 from twisted.python import log as twlog
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186 twlog.startLogging(sys.stderr)
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187 reactor.listenTCP(networking.effectEval.port, app.cycloneApp)
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188 log.info("listening on %s" % networking.effectEval.port)
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189 reactor.run()