Mercurial > piecrust2

annotate piecrust/main.py @ 634:14eec6faf10b 2.0.0b4

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docs: Make FoodTruck screenshots the proper size.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 09 Feb 2016 21:37:12 -0800
parents 9dd2f68f243b
children 3ceeca7bb71c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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612
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1 import os
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2 import os.path
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8703be118430 Changes to `help` command and extendable commands:
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3 import io
3
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4 import sys
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5 import time
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6 import logging
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7 import argparse
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8 import colorama
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cb1ed436642c Always use version generated by `setup.py`. Better version generation.
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9 from piecrust import APP_VERSION
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10 from piecrust.app import (
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11 PieCrust, PieCrustConfiguration, apply_variant_and_values)
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12 from piecrust.chefutil import (
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13 format_timed, log_friendly_exception, print_help_item)
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c8c522dacfea Add `help` function, cleanup argument handling.
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14 from piecrust.commands.base import CommandContext
3
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15 from piecrust.pathutil import SiteNotFoundError, find_app_root
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16 from piecrust.plugins.base import PluginLoader
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17
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18
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19 logger = logging.getLogger(__name__)
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20
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21
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22 class ColoredFormatter(logging.Formatter):
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23 COLORS = {
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24 'DEBUG': colorama.Fore.BLACK + colorama.Style.BRIGHT,
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25 'INFO': '',
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26 'WARNING': colorama.Fore.YELLOW,
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27 'ERROR': colorama.Fore.RED,
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28 'CRITICAL': colorama.Back.RED + colorama.Fore.WHITE
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29 }
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30
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31 def __init__(self, fmt=None, datefmt=None):
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32 super(ColoredFormatter, self).__init__(fmt, datefmt)
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33
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34 def format(self, record):
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35 color = self.COLORS.get(record.levelname)
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36 res = super(ColoredFormatter, self).format(record)
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37 if color:
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38 res = color + res + colorama.Style.RESET_ALL
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39 return res
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40
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41
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42 class NullPieCrust:
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43 def __init__(self):
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44 self.root_dir = None
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45 self.debug = False
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46 self.templates_dirs = []
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47 self.theme_dir = None
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48 self.cache_dir = None
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49 self.config = PieCrustConfiguration()
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50 self.plugin_loader = PluginLoader(self)
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028df35a690e Fix using `chef` outside of a website.
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51 self.env = None
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52
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53
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54 def main():
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55 if sys.platform == 'darwin':
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56 # There's a bug on MacOSX that can cause Python to be confused
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57 # about the locale. Let's try to fix that.
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58 # See: http://bugs.python.org/issue18378
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59 import locale
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60 try:
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61 locale.getdefaultlocale()
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62 except ValueError:
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63 locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
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64
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65 argv = sys.argv[1:]
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66 pre_args = _pre_parse_chef_args(argv)
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67 try:
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68 exit_code = _run_chef(pre_args, argv)
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69 except Exception as ex:
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70 if pre_args.debug:
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71 logger.exception(ex)
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72 else:
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73 log_friendly_exception(logger, ex)
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74 exit_code = 1
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75 sys.exit(exit_code)
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76
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77
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78 def _setup_main_parser_arguments(parser):
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79 parser.add_argument(
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80 '--version',
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81 action='version',
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82 version=('%(prog)s ' + APP_VERSION))
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83 parser.add_argument(
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84 '--root',
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85 help="The root directory of the website.")
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86 parser.add_argument(
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87 '--config',
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88 dest='config_variant',
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89 help="The configuration variant to use for this command.")
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90 parser.add_argument(
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91 '--config-set',
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92 nargs=2,
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93 metavar=('NAME', 'VALUE'),
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94 action='append',
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95 dest='config_values',
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96 help="Sets a specific site configuration setting.")
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97 parser.add_argument(
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98 '--debug',
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99 help="Show debug information.", action='store_true')
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100 parser.add_argument(
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101 '--debug-only',
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102 nargs='*',
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103 help="Only show debug information for the given categories.")
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104 parser.add_argument(
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105 '--no-cache',
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106 help="When applicable, disable caching.",
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107 action='store_true')
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108 parser.add_argument(
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109 '--quiet',
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110 help="Print only important information.",
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111 action='store_true')
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112 parser.add_argument(
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113 '--log',
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114 dest='log_file',
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115 help="Send log messages to the specified file.")
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116 parser.add_argument(
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117 '--log-debug',
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118 help="Log debug messages to the log file.",
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119 action='store_true')
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120 parser.add_argument(
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121 '--no-color',
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122 help="Don't use colorized output.",
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123 action='store_true')
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124 parser.add_argument(
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125 '--pid-file',
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126 dest='pid_file',
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127 help="Write a PID file for the current process.")
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128
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129
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130 def _pre_parse_chef_args(argv):
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131 # We need to parse some arguments before we can build the actual argument
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132 # parser, because it can affect which plugins will be loaded. Also, log-
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133 # related arguments must be parsed first because we want to log everything
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134 # from the beginning.
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135 parser = argparse.ArgumentParser()
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136 _setup_main_parser_arguments(parser)
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137 parser.add_argument('args', nargs=argparse.REMAINDER)
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138 res, _ = parser.parse_known_args(argv)
3
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139
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140 # Setup the logger.
38
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diff changeset
141 if res.debug and res.quiet:
3
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142 raise Exception("You can't specify both --debug and --quiet.")
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143
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diff changeset
144 strip_colors = None
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diff changeset
145 if res.no_color:
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parents: 564
diff changeset
146 strip_colors = True
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diff changeset
147
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diff changeset
148 colorama.init(strip=strip_colors)
3
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149 root_logger = logging.getLogger()
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150 root_logger.setLevel(logging.INFO)
97
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diff changeset
151 if res.debug or res.log_debug:
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diff changeset
152 root_logger.setLevel(logging.DEBUG)
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parents: 69
diff changeset
153
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154 if res.debug_only:
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155 for n in res.debug_only:
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156 logging.getLogger(n).setLevel(logging.DEBUG)
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diff changeset
157
3
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158 log_handler = logging.StreamHandler(sys.stdout)
564
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diff changeset
159 if res.debug or res.debug_only:
97
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diff changeset
160 log_handler.setLevel(logging.DEBUG)
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161 log_handler.setFormatter(ColoredFormatter("[%(name)s] %(message)s"))
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162 else:
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diff changeset
163 if res.quiet:
97
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diff changeset
164 log_handler.setLevel(logging.WARNING)
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165 else:
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166 log_handler.setLevel(logging.INFO)
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167 log_handler.setFormatter(ColoredFormatter("%(message)s"))
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168 root_logger.addHandler(log_handler)
97
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diff changeset
169
38
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diff changeset
170 if res.log_file:
97
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diff changeset
171 file_handler = logging.FileHandler(res.log_file, mode='w')
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diff changeset
172 root_logger.addHandler(file_handler)
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diff changeset
173 if res.log_debug:
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diff changeset
174 file_handler.setLevel(logging.DEBUG)
38
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diff changeset
175
612
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176 # PID file.
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177 if res.pid_file:
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178 try:
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179 pid_file_dir = os.path.dirname(res.pid_file)
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180 if pid_file_dir and not os.path.isdir(pid_file_dir):
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181 os.makedirs(pid_file_dir)
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182
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183 with open(res.pid_file, 'w') as fp:
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184 fp.write(str(os.getpid()))
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diff changeset
185 except OSError as ex:
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186 raise Exception("Can't write PID file: %s" % res.pid_file) from ex
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diff changeset
187
38
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diff changeset
188 return res
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diff changeset
189
3
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190
384
d241585412ad internal: Make it possible to pass `argv` to the main Chef function.
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parents: 371
diff changeset
191 def _run_chef(pre_args, argv):
3
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192 # Setup the app.
489
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diff changeset
193 start_time = time.perf_counter()
583
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194 root = None
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195 if pre_args.root:
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196 root = os.path.expanduser(pre_args.root)
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197 else:
38
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diff changeset
198 try:
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diff changeset
199 root = find_app_root()
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diff changeset
200 except SiteNotFoundError:
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201 root = None
3
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202
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diff changeset
203 if not root:
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204 app = NullPieCrust()
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205 else:
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diff changeset
206 app = PieCrust(root, cache=(not pre_args.no_cache),
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diff changeset
207 debug=pre_args.debug)
3
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diff changeset
208
371
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diff changeset
209 # Build a hash for a custom cache directory.
c2ca72fb7f0b caching: Use separate caches for config variants and other contexts.
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diff changeset
210 cache_key = 'default'
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diff changeset
211
466
456db44dcc53 bake: Pass the config variants and values from the CLI to the baker.
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parents: 384
diff changeset
212 # Handle custom configurations.
632
9dd2f68f243b chef: Fix the `--config-set` option.
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parents: 612
diff changeset
213 if (pre_args.config_variant or pre_args.config_values) and not root:
9dd2f68f243b chef: Fix the `--config-set` option.
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parents: 612
diff changeset
214 raise SiteNotFoundError(
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diff changeset
215 "Can't apply any configuration variant or value overrides, "
9dd2f68f243b chef: Fix the `--config-set` option.
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parents: 612
diff changeset
216 "there is no website here.")
467
a8028bf329a2 bug: Fix CLI crash caused by configuration variants.
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parents: 466
diff changeset
217 apply_variant_and_values(app, pre_args.config_variant,
466
456db44dcc53 bake: Pass the config variants and values from the CLI to the baker.
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parents: 384
diff changeset
218 pre_args.config_values)
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parents: 384
diff changeset
219
456db44dcc53 bake: Pass the config variants and values from the CLI to the baker.
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diff changeset
220 # Adjust the cache key.
38
091f99bfbe44 Fix running `chef` outside of a website. Slightly better error reporting.
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parents: 7
diff changeset
221 if pre_args.config_variant is not None:
371
c2ca72fb7f0b caching: Use separate caches for config variants and other contexts.
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parents: 342
diff changeset
222 cache_key += ',variant=%s' % pre_args.config_variant
583
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diff changeset
223 if pre_args.config_values:
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diff changeset
224 for name, value in pre_args.config_values:
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diff changeset
225 cache_key += ',%s=%s' % (name, value)
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
226
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227 # Setup the arg parser.
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228 parser = argparse.ArgumentParser(
57
c8c522dacfea Add `help` function, cleanup argument handling.
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parents: 44
diff changeset
229 prog='chef',
99
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
230 description="The PieCrust chef manages your website.",
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
231 formatter_class=argparse.RawDescriptionHelpFormatter)
583
1eda551ee681 cli: More proper argument parsing for the main/root arguments.
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diff changeset
232 _setup_main_parser_arguments(parser)
3
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parents:
diff changeset
233
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diff changeset
234 commands = sorted(app.plugin_loader.getCommands(),
341
bd726306d4dc chef: Add a `--config-set` option to set ad-hoc site configuration settings.
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parents: 307
diff changeset
235 key=lambda c: c.name)
99
8703be118430 Changes to `help` command and extendable commands:
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diff changeset
236 subparsers = parser.add_subparsers(title='list of commands')
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
237 for c in commands:
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diff changeset
238 p = subparsers.add_parser(c.name, help=c.description)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
239 c.setupParser(p, app)
57
c8c522dacfea Add `help` function, cleanup argument handling.
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parents: 44
diff changeset
240 p.set_defaults(func=c.checkedRun)
371
c2ca72fb7f0b caching: Use separate caches for config variants and other contexts.
Ludovic Chabant <ludovic@chabant.com>
parents: 342
diff changeset
241 p.set_defaults(cache_name=c.cache_name)
99
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
242
57
c8c522dacfea Add `help` function, cleanup argument handling.
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parents: 44
diff changeset
243 help_cmd = next(filter(lambda c: c.name == 'help', commands), None)
c8c522dacfea Add `help` function, cleanup argument handling.
Ludovic Chabant <ludovic@chabant.com>
parents: 44
diff changeset
244 if help_cmd and help_cmd.has_topics:
99
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
245 with io.StringIO() as epilog:
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
246 epilog.write("additional help topics:\n")
8703be118430 Changes to `help` command and extendable commands:
Ludovic Chabant <ludovic@chabant.com>
parents: 98
diff changeset
247 for name, desc in help_cmd.getTopics():
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
248 print_help_item(epilog, name, desc)
8703be118430 Changes to `help` command and extendable commands:
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parents: 98
diff changeset
249 parser.epilog = epilog.getvalue()
57
c8c522dacfea Add `help` function, cleanup argument handling.
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parents: 44
diff changeset
250
3
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diff changeset
251 # Parse the command line.
384
d241585412ad internal: Make it possible to pass `argv` to the main Chef function.
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parents: 371
diff changeset
252 result = parser.parse_args(argv)
341
bd726306d4dc chef: Add a `--config-set` option to set ad-hoc site configuration settings.
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parents: 307
diff changeset
253 logger.debug(format_timed(start_time, 'initialized PieCrust',
bd726306d4dc chef: Add a `--config-set` option to set ad-hoc site configuration settings.
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parents: 307
diff changeset
254 colored=False))
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
255
61
64f37c4cce68 Print the help by default when running `chef` with no command.
Ludovic Chabant <ludovic@chabant.com>
parents: 57
diff changeset
256 # Print the help if no command was specified.
64f37c4cce68 Print the help by default when running `chef` with no command.
Ludovic Chabant <ludovic@chabant.com>
parents: 57
diff changeset
257 if not hasattr(result, 'func'):
64f37c4cce68 Print the help by default when running `chef` with no command.
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parents: 57
diff changeset
258 parser.print_help()
64f37c4cce68 Print the help by default when running `chef` with no command.
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parents: 57
diff changeset
259 return 0
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260
371
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261 # Use a customized cache for the command and current config.
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262 if result.cache_name != 'default' or cache_key != 'default':
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263 app.useSubCache(result.cache_name, cache_key)
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264
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265 # Run the command!
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266 ctx = CommandContext(app, parser, result)
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267 ctx.config_variant = pre_args.config_variant
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268 ctx.config_values = pre_args.config_values
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269
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270 exit_code = result.func(ctx)
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271 if exit_code is None:
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272 return 0
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273 if not isinstance(exit_code, int):
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274 logger.error("Got non-integer exit code: %s" % exit_code)
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275 return -1
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276 return exit_code
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277