Mercurial > piecrust2

annotate piecrust/main.py @ 36:485682a6de50

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New site layout support.
author Ludovic Chabant <ludovic@chabant.com>
date Wed, 20 Aug 2014 23:16:51 -0700
parents 343d08ef5668
children 091f99bfbe44
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rev   line source
3
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1 import sys
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2 import time
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3 import os.path
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4 import logging
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5 import argparse
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6 import colorama
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7 from piecrust.app import PieCrust, PieCrustConfiguration, APP_VERSION
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8 from piecrust.chefutil import format_timed
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9 from piecrust.environment import StandardEnvironment
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10 from piecrust.pathutil import SiteNotFoundError, find_app_root
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11 from piecrust.plugins.base import PluginLoader
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12
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13
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14 logger = logging.getLogger(__name__)
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15
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16
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17 class ColoredFormatter(logging.Formatter):
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18 COLORS = {
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19 'DEBUG': colorama.Fore.BLACK + colorama.Style.BRIGHT,
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20 'INFO': '',
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21 'WARNING': colorama.Fore.YELLOW,
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22 'ERROR': colorama.Fore.RED,
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23 'CRITICAL': colorama.Back.RED + colorama.Fore.WHITE
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24 }
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25
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26 def __init__(self, fmt=None, datefmt=None):
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27 super(ColoredFormatter, self).__init__(fmt, datefmt)
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28
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29 def format(self, record):
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30 color = self.COLORS.get(record.levelname)
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31 res = super(ColoredFormatter, self).format(record)
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32 if color:
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33 res = color + res + colorama.Style.RESET_ALL
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34 return res
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35
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36
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37 class NullPieCrust:
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38 def __init__(self):
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39 self.root_dir = None
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40 self.debug = False
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41 self.templates_dirs = []
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42 self.plugins_dirs = []
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43 self.theme_dir = None
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44 self.cache_dir = None
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45 self.config = PieCrustConfiguration()
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46 self.plugin_loader = PluginLoader(self)
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47 self.env = StandardEnvironment()
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48 self.env.initialize(self)
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49
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50
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51 def main():
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52 start_time = time.clock()
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53
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54 # We need to parse some arguments before we can build the actual argument
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55 # parser, because it can affect which plugins will be loaded. Also, log-
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56 # related arguments must be parsed first because we want to log everything
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57 # from the beginning.
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58 root = None
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59 cache = True
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60 debug = False
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61 quiet = False
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62 log_file = None
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63 config_variant = None
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64 i = 1
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65 while i < len(sys.argv):
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66 arg = sys.argv[i]
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67 if arg.startswith('--root='):
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68 root = os.path.expanduser(arg[len('--root='):])
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69 elif arg == '--root':
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70 root = sys.argv[i + 1]
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71 ++i
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72 elif arg.startswith('--config='):
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73 config_variant = arg[len('--config='):]
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74 elif arg == '--config':
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75 config_variant = sys.argv[i + 1]
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76 ++i
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77 elif arg == '--log':
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78 log_file = sys.argv[i + 1]
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79 ++i
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80 elif arg == '--no-cache':
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81 cache = False
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82 elif arg == '--debug':
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83 debug = True
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84 elif arg == '--quiet':
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85 quiet = True
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86
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87 if arg[0] != '-':
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88 break
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89
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90 i = i + 1
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91
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92 # Setup the logger.
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93 if debug and quiet:
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94 raise Exception("You can't specify both --debug and --quiet.")
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95
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96 colorama.init()
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97 root_logger = logging.getLogger()
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98 root_logger.setLevel(logging.INFO)
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99 log_handler = logging.StreamHandler(sys.stdout)
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100 if debug:
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101 root_logger.setLevel(logging.DEBUG)
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102 log_handler.setFormatter(ColoredFormatter("[%(name)s] %(message)s"))
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103 else:
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104 if quiet:
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105 root_logger.setLevel(logging.WARNING)
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106 log_handler.setFormatter(ColoredFormatter("%(message)s"))
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107 root_logger.addHandler(log_handler)
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108 if log_file:
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109 root_logger.addHandler(logging.FileHandler(log_file))
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110
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111 # Setup the app.
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112 if root is None:
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113 root = find_app_root()
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114
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115 if not root:
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116 app = NullPieCrust()
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117 else:
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118 app = PieCrust(root, cache=cache)
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119
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120 # Handle a configuration variant.
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121 if config_variant is not None:
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122 if not root:
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123 raise SiteNotFoundError()
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124 app.config.applyVariant('variants/' + config_variant)
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125
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126 # Setup the arg parser.
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127 parser = argparse.ArgumentParser(
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128 description="The PieCrust chef manages your website.")
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129 parser.add_argument('--version', action='version', version=('%(prog)s ' + APP_VERSION))
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130 parser.add_argument('--root', help="The root directory of the website.")
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131 parser.add_argument('--config', help="The configuration variant to use for this command.")
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132 parser.add_argument('--debug', help="Show debug information.", action='store_true')
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133 parser.add_argument('--no-cache', help="When applicable, disable caching.", action='store_true')
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134 parser.add_argument('--quiet', help="Print only important information.", action='store_true')
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135 parser.add_argument('--log', help="Send log messages to the specified file.")
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136
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137 commands = sorted(app.plugin_loader.getCommands(),
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343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
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138 key=lambda c: c.name)
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139 subparsers = parser.add_subparsers()
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140 for c in commands:
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141 p = subparsers.add_parser(c.name, help=c.description)
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142 c.setupParser(p, app)
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143 p.set_defaults(func=c._runFromChef)
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144
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145 # Parse the command line.
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146 result = parser.parse_args()
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147 logger.debug(format_timed(start_time, 'initialized PieCrust'))
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148
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149 # Run the command!
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150 exit_code = result.func(app, result)
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151 return exit_code
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152