Mercurial > caja-test

annotate pavement.py @ 2:6737bc744b46

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Added a TODO.
author Atul Varma <varmaa@toolness.com>
date Sun, 07 Jun 2009 20:21:24 -0700
parents 00d50391d378
children cf673c093b61
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1 import md5
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2 import os
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3 import subprocess
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4 import wsgiref
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5 import wsgiref.simple_server
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6 from paver.easy import *
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7
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8 DEFAULT_PORT = 8080
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9 DEFAULT_HOST = '127.0.0.1'
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10
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11 class CajolerWebApp(object):
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12 def __init__(self, cajoler_path):
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13 self.cajoler_path = cajoler_path
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14 self.cache = {}
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15
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16 def cajole(self, filename):
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17 contents = open(filename).read()
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18 hash = md5.md5(contents).hexdigest()
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19 if hash not in self.cache:
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20 # TODO: This isn't threadsafe.
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21 # TODO: There's no way to evict entries from the cache.
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22 output_filename = "output.co.js"
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23 retval = subprocess.call([self.cajoler_path,
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24 "-i", filename,
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25 "-o", output_filename])
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26 if retval == 0:
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27 self.cache[hash] = open(output_filename).read()
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28 os.remove(output_filename)
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29 else:
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30 self.cache[hash] = None
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31 return self.cache[hash]
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32
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33 def app(self, env, start_response):
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34 path = env['PATH_INFO']
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35 parts = path.split('/')[1:]
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36 if len(parts) == 1:
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37 filename = os.path.join('caja-js', parts[0])
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38 if os.path.exists(filename) and not os.path.isdir(filename):
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39 cajoled = self.cajole(filename)
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40 if cajoled is None:
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41 start_response('500 Internal Server Error',
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42 [('Content-type', 'text/plain')])
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43 return ["Cajoling failed."]
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44 start_response('200 OK',
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45 [('Content-type', 'text/javascript')])
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46 return [cajoled]
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47 start_response('404 Not Found',
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48 [('Content-type', 'text/plain')])
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49 return ['Not found: %s' % path]
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50
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51 @task
1
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52 @cmdopts((['port=', 'p', 'port to bind to'],
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53 ['host=', 'o', 'host to bind to'],
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54 ['cajoler-path=', 'c', 'path to cajole_html']))
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55 def runserver(options):
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56 port = int(options.get('port', DEFAULT_PORT))
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57 host = options.get('host', DEFAULT_HOST)
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58 if not options.get('cajoler_path'):
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59 raise Exception('Required option: --cajoler-path.')
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60 print "Running server at %s port %d, press Ctrl-C to stop." % (host,
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61 port)
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62 app = CajolerWebApp(options.cajoler_path)
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63 server = wsgiref.simple_server.make_server(host, port, app.app)
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64 server.serve_forever()