Mercurial > piecrust2

annotate piecrust/sources/posts.py @ 3:f485ba500df3

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Gigantic change to basically make PieCrust 2 vaguely functional. - Serving works, with debug window. - Baking works, multi-threading, with dependency handling. - Various things not implemented yet.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 10 Aug 2014 23:43:16 -0700
parents
children 474c9882decf
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rev   line source
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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1 import os
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2 import os.path
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3 import re
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4 import glob
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5 import logging
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6 import datetime
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7 from piecrust import CONTENT_DIR
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8 from piecrust.sources.base import (PageSource, IPreparingSource,
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9 PageNotFoundError, InvalidFileSystemEndpointError,
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10 PageFactory, MODE_CREATING)
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11
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12
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13 logger = logging.getLogger(__name__)
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14
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15
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16 class PostsSource(PageSource, IPreparingSource):
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17 PATH_FORMAT = None
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18
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19 def __init__(self, app, name, config):
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20 super(PostsSource, self).__init__(app, name, config)
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21 self.fs_endpoint = config.get('fs_endpoint', name)
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22 self.fs_endpoint_path = os.path.join(self.root_dir, CONTENT_DIR, self.fs_endpoint)
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23 self.supported_extensions = app.config.get('site/auto_formats').keys()
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24
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25 @property
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26 def path_format(self):
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27 return self.__class__.PATH_FORMAT
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28
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29 def resolveRef(self, ref_path):
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30 return os.path.join(self.fs_endpoint_path, ref_path)
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31
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32 def findPagePath(self, metadata, mode):
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33 year = metadata.get('year')
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34 month = metadata.get('month')
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35 day = metadata.get('day')
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36 slug = metadata.get('slug')
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37
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38 ext = metadata.get('ext')
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39 if ext is None:
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40 if len(self.supported_extensions) == 1:
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41 ext = self.supported_extensions[0]
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42
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43 replacements = {
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44 'year': year,
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45 'month': month,
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46 'day': day,
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47 'slug': slug,
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48 'ext': ext
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49 }
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50 needs_recapture = False
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51 if year is None:
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52 needs_recapture = True
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53 replacements['year'] = '????'
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54 if month is None:
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55 needs_recapture = True
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56 replacements['month'] = '??'
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57 if day is None:
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58 needs_recapture = True
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59 replacements['day'] = '??'
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60 if slug is None:
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61 needs_recapture = True
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62 replacements['slug'] = '*'
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63 if ext is None:
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64 needs_recapture = True
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65 replacements['ext'] = '*'
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66 path = os.path.join(self.fs_endpoint_path, self.path_format % replacements)
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67
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68 if needs_recapture:
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69 if mode == MODE_CREATING:
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70 raise ValueError("Not enough information to find a post path.")
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71 possible_paths = glob.glob(path)
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72 if len(possible_paths) != 1:
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73 raise PageNotFoundError()
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74 path = possible_paths[0]
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75 elif not os.path.isfile(path):
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76 raise PageNotFoundError()
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77
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78 regex_repl = {
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79 'year': '(?P<year>\d{4})',
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80 'month': '(?P<month>\d{2})',
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81 'day': '(?P<day>\d{2})',
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82 'slug': '(?P<slug>.*)',
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83 'ext': '(?P<ext>.*)'
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84 }
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85 pattern = os.path.join(self.fs_endpoint_path, self.path_format) % regex_repl
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86 m = re.match(pattern, path)
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87 if not m:
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88 raise Exception("Expected to be able to match path with path "
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89 "format: %s" % path)
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90 fac_metadata = {
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91 'year': m.group('year'),
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92 'month': m.group('month'),
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93 'day': m.group('day'),
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94 'slug': m.group('slug')
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95 }
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96
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97 return path, fac_metadata
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98
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99 def setupPrepareParser(self, parser, app):
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100 parser.add_argument('-d', '--date', help="The date of the post, "
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101 "in `year/month/day` format (defaults to today).")
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102 parser.add_argument('slug', help="The URL slug for the new post.")
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103
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104 def buildMetadata(self, args):
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105 today = datetime.date.today()
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106 year, month, day = today.year, today.month, today.day
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107 if args.date:
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108 year, month, day = filter(
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109 lambda s: int(s),
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110 args.date.split('/'))
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111 return {'year': year, 'month': month, 'day': day, 'slug': args.slug}
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112
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113 def _checkFsEndpointPath(self):
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114 if not os.path.isdir(self.fs_endpoint_path):
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115 raise InvalidFileSystemEndpointError(self.name, self.fs_endpoint_path)
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116
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117 def _makeFactory(self, path, slug, year, month, day):
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118 timestamp = datetime.date(year, month, day)
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119 metadata = {
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120 'slug': slug,
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121 'year': year,
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122 'month': month,
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123 'day': day,
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124 'date': timestamp}
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125 return PageFactory(self, path, metadata)
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126
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127
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128 class FlatPostsSource(PostsSource):
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129 SOURCE_NAME = 'posts/flat'
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130 PATH_FORMAT = '%(year)s-%(month)s-%(day)s_%(slug)s.%(ext)s'
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131
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132 def __init__(self, app, name, config):
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133 super(FlatPostsSource, self).__init__(app, name, config)
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134
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135 def buildPageFactories(self):
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136 logger.debug("Scanning for posts (flat) in: %s" % self.fs_endpoint_path)
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137 pattern = re.compile(r'(\d{4})-(\d{2})-(\d{2})_(.*)\.(\w+)$')
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138 _, __, filenames = next(os.walk(self.fs_endpoint_path))
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139 for f in filenames:
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140 match = pattern.match(f)
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141 if match is None:
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142 name, ext = os.path.splitext(f)
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143 logger.warning("'%s' is not formatted as 'YYYY-MM-DD_slug-title.%s' "
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144 "and will be ignored. Is that a typo?" % (f, ext))
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145 continue
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146 yield self._makeFactory(
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147 f,
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148 match.group(4),
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149 int(match.group(1)),
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150 int(match.group(2)),
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151 int(match.group(3)))
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152
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153
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154 class ShallowPostsSource(PostsSource):
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155 SOURCE_NAME = 'posts/shallow'
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156 PATH_FORMAT = '%(year)s/%(month)s-%(day)s_%(slug)s.%(ext)s'
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157
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158 def __init__(self, app, name, config):
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159 super(ShallowPostsSource, self).__init__(app, name, config)
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160
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161 def buildPageFactories(self):
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162 logger.debug("Scanning for posts (shallow) in: %s" % self.fs_endpoint_path)
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163 year_pattern = re.compile(r'(\d{4})$')
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164 file_pattern = re.compile(r'(\d{2})-(\d{2})_(.*)\.(\w+)$')
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165 _, year_dirs, __ = next(os.walk(self.fs_endpoint_path))
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166 year_dirs = filter(lambda d: year_pattern.match(d), year_dirs)
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167 for yd in year_dirs:
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168 if year_pattern.match(yd) is None:
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169 logger.warning("'%s' is not formatted as 'YYYY' and will be ignored. "
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170 "Is that a typo?")
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171 continue
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172 year = int(yd)
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173 year_dir = os.path.join(self.fs_endpoint_path, yd)
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174
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175 _, __, filenames = os.walk(year_dir)
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176 for f in filenames:
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177 match = file_pattern.match(f)
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178 if match is None:
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179 name, ext = os.path.splitext(f)
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180 logger.warning("'%s' is not formatted as 'MM-DD_slug-title.%s' "
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181 "and will be ignored. Is that a typo?" % (f, ext))
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182 continue
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183 yield self._makeFactory(
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184 os.path.join(yd, f),
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185 match.group(3),
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186 year,
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187 int(match.group(1)),
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188 int(match.group(2)))
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189
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190
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191 class HierarchyPostsSource(PostsSource):
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192 SOURCE_NAME = 'posts/hierarchy'
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193 PATH_FORMAT = '%(year)s/%(month)s/%(day)s_%(slug)s.%(ext)s'
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194
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195 def __init__(self, app, name, config):
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196 super(HierarchyPostsSource, self).__init__(app, name, config)
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197
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198 def buildPageFactories(self):
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199 logger.debug("Scanning for posts (hierarchy) in: %s" % self.fs_endpoint_path)
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200 year_pattern = re.compile(r'(\d{4})$')
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201 month_pattern = re.compile(r'(\d{2})$')
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202 file_pattern = re.compile(r'(\d{2})_(.*)\.(\w+)$')
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203 _, year_dirs, __ = next(os.walk(self.fs_endpoint_path))
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204 year_dirs = filter(lambda d: year_pattern.match(d), year_dirs)
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205 for yd in year_dirs:
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206 year = int(yd)
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207 year_dir = os.path.join(self.fs_endpoint_path, yd)
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208
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209 _, month_dirs, __ = next(os.walk(year_dir))
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210 month_dirs = filter(lambda d: month_pattern.match(d), month_dirs)
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211 for md in month_dirs:
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212 month = int(md)
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213 month_dir = os.path.join(year_dir, md)
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214
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215 _, __, filenames = next(os.walk(month_dir))
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216 for f in filenames:
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217 match = file_pattern.match(f)
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218 if match is None:
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219 name, ext = os.path.splitext(f)
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220 logger.warning("'%s' is not formatted as 'DD_slug-title.%s' "
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221 "and will be ignored. Is that a typo?" % (f, ext))
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222 continue
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223 rel_name = os.path.join(yd, md, f)
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224 yield self._makeFactory(
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225 rel_name,
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226 match.group(2),
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diff changeset
227 year,
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diff changeset
228 month,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
229 int(match.group(1)))
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diff changeset
230