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annotate wikked/commands/web.py @ 315:e07eee5e101a

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Consistent Flask config variables. Set that config before creating the app.
author Ludovic Chabant <ludovic@chabant.com>
date Wed, 08 Oct 2014 23:22:44 -0700
parents 6bd9d44fc535
children 566d229d1b30
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175
a971deb123d7 Fixed missing import.
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1 import os
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2 import os.path
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3 import imp
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4 import logging
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5 from wikked.commands.base import WikkedCommand, register_command
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6
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7
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8 logger = logging.getLogger(__name__)
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9
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10
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11 def autoreload_wiki_updater(wiki, url):
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12 wiki.db.uncachePages(except_url=url, only_required=True)
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13
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14
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15 @register_command
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16 class RunServerCommand(WikkedCommand):
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17 def __init__(self):
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18 super(RunServerCommand, self).__init__()
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19 self.name = 'runserver'
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20 self.description = ("Runs the wiki in a local web server.")
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21
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22 def setupParser(self, parser):
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23 parser.add_argument('--host',
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24 help="The host to use",
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25 default='127.0.0.1')
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26 parser.add_argument('--port',
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27 help="The port to use",
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28 default=5000)
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29 parser.add_argument('--usetasks',
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30 help="Use background tasks for updating the wiki after a "
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31 "page has been edited. You will have to run "
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32 "`wk runtasks` at the same time as `wk runserver`.",
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33 action='store_true')
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34 parser.add_argument('-d', '--dev',
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35 help="Use development mode. "
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36 "This makes Wikked use development assets (separate and "
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37 "uncompressed scripts and stylesheets), along with using "
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38 "code reloading and debugging.",
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39 action='store_true')
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40 parser.add_argument('--noupdate',
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41 help="Don't auto-update the wiki if a page file has been "
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42 "touched (which means you can refresh a locally modified "
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43 "page with F5)",
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44 action='store_true')
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45 parser.add_argument('-c', '--config',
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46 help="Pass some configuration value to the Flask application. "
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47 "This must be of the form: name=value",
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48 nargs="*")
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49
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50 def run(self, ctx):
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51 # Change working directory because the Flask app can currently
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52 # only initialize itself relative to that...
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53 # TODO: make the Flask initialization more clever.
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54 os.chdir(ctx.params.root)
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55
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56 # Setup some settings that need to be set before the app is created.
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57 import wikked.settings
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58 if ctx.args.usetasks:
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59 wikked.settings.WIKI_ASYNC_UPDATE = True
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60 if ctx.args.config:
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61 for cv in ctx.args.config:
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62 cname, cval = cv.split('=')
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63 if cval in ['true', 'True', 'TRUE']:
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64 setattr(wikked.settings, cname, True)
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65 else:
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66 setattr(wikked.settings, cname, cval)
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67
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68 # Remove Flask's default logging handler. Since the app is under the
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69 # overall Wikked package, logging is handled by the root logger
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70 # already.
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71 wikked.settings.WIKI_NO_FLASK_LOGGER = True
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72
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73 # When running from the command line, we only have one web server
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74 # so make it also serve static files.
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75 wikked.settings.WIKI_SERVE_FILES = True
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76 if ctx.args.dev:
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77 wikked.settings.WIKI_DEV_ASSETS = True
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78 if not ctx.args.noupdate:
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79 wikked.settings.WIKI_AUTO_RELOAD = True
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80 ctx.params.wiki_updater = autoreload_wiki_updater
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81
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82 # Create/import the app.
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83 from wikked.web import app
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84
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85 app.wiki_params = ctx.params
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86 if bool(app.config.get('WIKI_UPDATE_ON_START')):
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87 ctx.wiki.updateAll()
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88
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89 # Run!
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90 debug_mode = ctx.args.dev or app.config.get('DEBUG', False)
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91 app.run(
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92 host=ctx.args.host,
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93 port=ctx.args.port,
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94 debug=debug_mode,
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95 use_debugger=debug_mode,
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96 use_reloader=debug_mode)
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98
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99 @register_command
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100 class RunTasksCommand(WikkedCommand):
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101 def __init__(self):
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102 super(RunTasksCommand, self).__init__()
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103 self.name = 'runtasks'
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104 self.description = "Runs the tasks to update the wiki in the background."
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105
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106 def setupParser(self, parser):
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107 pass
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108
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109 def run(self, ctx):
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110 # Import the Celery app and update its configuration with the same
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111 # stuff as what the Flask app got.
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112 from wikked.tasks import celery_app
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113
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114 celery_app.conf.update(BROKER_URL='sqla+sqlite:///%(root)s/.wiki/broker.db')
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115 config_path = os.path.join(ctx.params.root, '.wiki', 'app.cfg')
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116 if os.path.isfile(config_path):
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117 obj = self._loadConfig(config_path)
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118 celery_app.conf.update(obj.__dict__)
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119 celery_app.conf.BROKER_URL = celery_app.conf.BROKER_URL % (
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120 { 'root': ctx.params.root })
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121
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122 os.chdir(os.path.join(os.path.dirname(__file__), '..', '..'))
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123 argv = ['celery', 'worker', '-A', 'wikked.tasks']
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124 if ctx.args.debug:
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125 argv += ['-l', 'DEBUG']
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126 celery_app.start(argv)
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127
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128 def _loadConfig(self, path):
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129 d = imp.new_module('config')
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130 d.__file__ = path
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131 try:
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132 with open(path) as config_file:
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133 exec(compile(config_file.read(), path, 'exec'), d.__dict__)
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134 except IOError as e:
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135 e.strerror = 'Unable to load Flask/Celery configuration file (%s)' % e.strerror
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136 raise
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137 return d