annotate chef.py @ 0:a212a3f2e3ee

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author Ludovic Chabant <ludovic@chabant.com>
date Sat, 21 Dec 2013 14:44:02 -0800
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children aaa8fb7c8918
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1 import sys
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2 import os.path
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3 import logging
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4 import argparse
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5 from piecrust.app import PieCrust, PieCrustConfiguration, APP_VERSION
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6 from piecrust.commands.base import CommandContext
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7 from piecrust.environment import StandardEnvironment
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8 from piecrust.pathutil import SiteNotFoundError, find_app_root
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9
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10
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11 logger = logging.getLogger(__name__)
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12 logging.basicConfig(level=logging.INFO,
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13 format="%(message)s")
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14
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15
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16 class NullPieCrust:
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17 def __init__(self):
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18 self.root = None
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19 self.cache = False
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20 self.debug = False
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21 self.templates_dirs = []
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22 self.pages_dir = []
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23 self.posts_dir = []
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24 self.plugins_dirs = []
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25 self.theme_dir = None
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26 self.cache_dir = None
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27 self.config = PieCrustConfiguration()
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28 self.env = StandardEnvironment(self)
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29
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30
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31 def main():
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32 root = None
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33 cache = True
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34 debug = False
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35 config_variant = None
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36 i = 0
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37 while i < len(sys.argv):
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38 arg = sys.argv[i]
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39 if arg.startswith('--root='):
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40 root = os.path.expanduser(arg[len('--root='):])
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41 elif arg == '--root':
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42 root = sys.argv[i + 1]
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43 ++i
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44 elif arg.startswith('--config='):
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45 config_variant = arg[len('--config='):]
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46 elif arg == '--config':
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47 config_variant = sys.argv[i + 1]
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48 ++i
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49 elif arg == '--no-cache':
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50 cache = False
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51 elif arg == '--debug':
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52 debug = True
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53
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54 if arg[0] != '-':
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55 break
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56
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57 if debug:
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58 logger.setLevel(logging.DEBUG)
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59
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60 if root is None:
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61 root = find_app_root()
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62
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63 if not root:
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64 app = NullPieCrust()
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65 else:
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66 app = PieCrust(root, cache=cache)
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67
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68 # Handle a configuration variant.
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69 if config_variant is not None:
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70 if not root:
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71 raise SiteNotFoundError()
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72 app.config.applyVariant('variants/' + config_variant)
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73
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74 # Setup the arg parser.
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75 parser = argparse.ArgumentParser(
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76 description="The PieCrust chef manages your website.")
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77 parser.add_argument('--version', action='version', version=('%(prog)s ' + APP_VERSION))
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78 parser.add_argument('--root', help="The root directory of the website.")
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79 parser.add_argument('--config', help="The configuration variant to use for this command.")
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80 parser.add_argument('--debug', help="Show debug information.", action='store_true')
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81 parser.add_argument('--no-cache', help="When applicable, disable caching.", action='store_true')
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82 parser.add_argument('--quiet', help="Print only important information.", action='store_true')
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83 parser.add_argument('--log', help="Send log messages to the specified file.")
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84
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85 commands = sorted(app.plugin_loader.getCommands(),
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86 lambda a, b: cmp(a.name, b.name))
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87 subparsers = parser.add_subparsers()
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88 for c in commands:
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89 def command_runner(r):
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90 if root is None and c.requires_website:
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91 raise SiteNotFoundError()
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92 c.run(CommandContext(r, app))
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93
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94 p = subparsers.add_parser(c.name, help=c.description)
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95 c.setupParser(p)
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96 p.set_defaults(func=command_runner)
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97
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98 # Parse the command line.
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99 result = parser.parse_args()
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100
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101 # Setup the logger.
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102 if result.debug and result.quiet:
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103 raise Exception("You can't specify both --debug and --quiet.")
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104 if result.debug:
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105 logger.setLevel(logging.DEBUG)
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106 elif result.quiet:
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107 logger.setLevel(logging.WARNING)
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108 if result.log:
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109 from logging.handlers import FileHandler
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110 logger.addHandler(FileHandler(result.log))
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111
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112 # Run the command!
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113 result.func(result)
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114
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115
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116 if __name__ == '__main__':
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117 main()
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118