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annotate piecrust/sources/posts.py @ 6:f5ca5c5bed85

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More Python 3 fixes, modularization, and new unit tests.
author Ludovic Chabant <ludovic@chabant.com>
date Sat, 16 Aug 2014 08:15:30 -0700
parents 474c9882decf
children 617191dec18e
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rev   line source
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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 SimplePaginationSourceMixin,
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10 PageNotFoundError, InvalidFileSystemEndpointError,
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11 PageFactory, MODE_CREATING)
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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 PostsSource(PageSource, IPreparingSource, SimplePaginationSourceMixin):
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18 PATH_FORMAT = None
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19
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20 def __init__(self, app, name, config):
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21 super(PostsSource, self).__init__(app, name, config)
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22 self.fs_endpoint = config.get('fs_endpoint', name)
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23 self.fs_endpoint_path = os.path.join(self.root_dir, CONTENT_DIR, self.fs_endpoint)
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24 self.supported_extensions = list(app.config.get('site/auto_formats').keys())
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25
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26 @property
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27 def path_format(self):
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28 return self.__class__.PATH_FORMAT
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29
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30 def resolveRef(self, ref_path):
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31 return os.path.join(self.fs_endpoint_path, ref_path)
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32
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33 def findPagePath(self, metadata, mode):
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34 year = metadata.get('year')
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35 month = metadata.get('month')
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36 day = metadata.get('day')
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37 slug = metadata.get('slug')
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38
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39 ext = metadata.get('ext')
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40 if ext is None:
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41 if len(self.supported_extensions) == 1:
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42 ext = self.supported_extensions[0]
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43
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44 replacements = {
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45 'year': year,
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46 'month': month,
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47 'day': day,
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48 'slug': slug,
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49 'ext': ext
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50 }
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51 needs_recapture = False
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52 if year is None:
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53 needs_recapture = True
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54 replacements['year'] = '????'
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55 if month is None:
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56 needs_recapture = True
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57 replacements['month'] = '??'
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58 if day is None:
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59 needs_recapture = True
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60 replacements['day'] = '??'
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61 if slug is None:
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62 needs_recapture = True
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63 replacements['slug'] = '*'
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64 if ext is None:
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65 needs_recapture = True
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66 replacements['ext'] = '*'
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67 path = os.path.join(self.fs_endpoint_path, self.path_format % replacements)
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68
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69 if needs_recapture:
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70 if mode == MODE_CREATING:
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71 raise ValueError("Not enough information to find a post path.")
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72 possible_paths = glob.glob(path)
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73 if len(possible_paths) != 1:
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74 raise PageNotFoundError()
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75 path = possible_paths[0]
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76 elif not os.path.isfile(path):
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77 raise PageNotFoundError()
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78
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79 regex_repl = {
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80 'year': '(?P<year>\d{4})',
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81 'month': '(?P<month>\d{2})',
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82 'day': '(?P<day>\d{2})',
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83 'slug': '(?P<slug>.*)',
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84 'ext': '(?P<ext>.*)'
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85 }
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86 pattern = os.path.join(self.fs_endpoint_path, self.path_format) % regex_repl
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87 m = re.match(pattern, path)
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88 if not m:
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89 raise Exception("Expected to be able to match path with path "
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90 "format: %s" % path)
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91 fac_metadata = {
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92 'year': m.group('year'),
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93 'month': m.group('month'),
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94 'day': m.group('day'),
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95 'slug': m.group('slug')
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96 }
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97
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98 return path, fac_metadata
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99
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100 def setupPrepareParser(self, parser, app):
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101 parser.add_argument('-d', '--date', help="The date of the post, "
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102 "in `year/month/day` format (defaults to today).")
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103 parser.add_argument('slug', help="The URL slug for the new post.")
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104
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105 def buildMetadata(self, args):
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106 today = datetime.date.today()
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107 year, month, day = today.year, today.month, today.day
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108 if args.date:
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109 year, month, day = [s for s in args.date.split('/') if int(s)]
3
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110 return {'year': year, 'month': month, 'day': day, 'slug': args.slug}
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111
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112 def _checkFsEndpointPath(self):
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113 if not os.path.isdir(self.fs_endpoint_path):
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114 raise InvalidFileSystemEndpointError(self.name, self.fs_endpoint_path)
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115
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116 def _makeFactory(self, path, slug, year, month, day):
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117 timestamp = datetime.date(year, month, day)
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118 metadata = {
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119 'slug': slug,
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120 'year': year,
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121 'month': month,
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122 'day': day,
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123 'date': timestamp}
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124 return PageFactory(self, path, metadata)
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125
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126
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127 class FlatPostsSource(PostsSource):
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128 SOURCE_NAME = 'posts/flat'
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129 PATH_FORMAT = '%(year)s-%(month)s-%(day)s_%(slug)s.%(ext)s'
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130
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131 def __init__(self, app, name, config):
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132 super(FlatPostsSource, self).__init__(app, name, config)
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133
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134 def buildPageFactories(self):
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135 logger.debug("Scanning for posts (flat) in: %s" % self.fs_endpoint_path)
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136 pattern = re.compile(r'(\d{4})-(\d{2})-(\d{2})_(.*)\.(\w+)$')
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137 _, __, filenames = next(os.walk(self.fs_endpoint_path))
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138 for f in filenames:
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139 match = pattern.match(f)
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140 if match is None:
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141 name, ext = os.path.splitext(f)
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142 logger.warning("'%s' is not formatted as 'YYYY-MM-DD_slug-title.%s' "
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143 "and will be ignored. Is that a typo?" % (f, ext))
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144 continue
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145 yield self._makeFactory(
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146 f,
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147 match.group(4),
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148 int(match.group(1)),
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149 int(match.group(2)),
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150 int(match.group(3)))
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151
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152
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153 class ShallowPostsSource(PostsSource):
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154 SOURCE_NAME = 'posts/shallow'
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155 PATH_FORMAT = '%(year)s/%(month)s-%(day)s_%(slug)s.%(ext)s'
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156
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157 def __init__(self, app, name, config):
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158 super(ShallowPostsSource, self).__init__(app, name, config)
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159
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160 def buildPageFactories(self):
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161 logger.debug("Scanning for posts (shallow) in: %s" % self.fs_endpoint_path)
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162 year_pattern = re.compile(r'(\d{4})$')
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163 file_pattern = re.compile(r'(\d{2})-(\d{2})_(.*)\.(\w+)$')
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164 _, year_dirs, __ = next(os.walk(self.fs_endpoint_path))
5
474c9882decf Upgrade to Python 3.
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165 year_dirs = [d for d in year_dirs if year_pattern.match(d)]
3
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166 for yd in year_dirs:
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167 if year_pattern.match(yd) is None:
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168 logger.warning("'%s' is not formatted as 'YYYY' and will be ignored. "
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169 "Is that a typo?")
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170 continue
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171 year = int(yd)
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172 year_dir = os.path.join(self.fs_endpoint_path, yd)
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173
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174 _, __, filenames = os.walk(year_dir)
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175 for f in filenames:
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176 match = file_pattern.match(f)
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177 if match is None:
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178 name, ext = os.path.splitext(f)
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179 logger.warning("'%s' is not formatted as 'MM-DD_slug-title.%s' "
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180 "and will be ignored. Is that a typo?" % (f, ext))
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181 continue
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182 yield self._makeFactory(
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183 os.path.join(yd, f),
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184 match.group(3),
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185 year,
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186 int(match.group(1)),
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187 int(match.group(2)))
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188
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189
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190 class HierarchyPostsSource(PostsSource):
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191 SOURCE_NAME = 'posts/hierarchy'
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192 PATH_FORMAT = '%(year)s/%(month)s/%(day)s_%(slug)s.%(ext)s'
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193
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194 def __init__(self, app, name, config):
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195 super(HierarchyPostsSource, self).__init__(app, name, config)
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196
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197 def buildPageFactories(self):
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198 logger.debug("Scanning for posts (hierarchy) in: %s" % self.fs_endpoint_path)
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199 year_pattern = re.compile(r'(\d{4})$')
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200 month_pattern = re.compile(r'(\d{2})$')
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201 file_pattern = re.compile(r'(\d{2})_(.*)\.(\w+)$')
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202 _, year_dirs, __ = next(os.walk(self.fs_endpoint_path))
5
474c9882decf Upgrade to Python 3.
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diff changeset
203 year_dirs = [d for d in year_dirs if year_pattern.match(d)]
3
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204 for yd in year_dirs:
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205 year = int(yd)
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206 year_dir = os.path.join(self.fs_endpoint_path, yd)
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diff changeset
207
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208 _, month_dirs, __ = next(os.walk(year_dir))
5
474c9882decf Upgrade to Python 3.
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diff changeset
209 month_dirs = [d for d in month_dirs if month_pattern.match(d)]
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
210 for md in month_dirs:
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diff changeset
211 month = int(md)
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diff changeset
212 month_dir = os.path.join(year_dir, md)
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213
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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214 _, __, filenames = next(os.walk(month_dir))
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diff changeset
215 for f in filenames:
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diff changeset
216 match = file_pattern.match(f)
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diff changeset
217 if match is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
218 name, ext = os.path.splitext(f)
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diff changeset
219 logger.warning("'%s' is not formatted as 'DD_slug-title.%s' "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
220 "and will be ignored. Is that a typo?" % (f, ext))
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parents:
diff changeset
221 continue
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diff changeset
222 rel_name = os.path.join(yd, md, f)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
223 yield self._makeFactory(
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diff changeset
224 rel_name,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
225 match.group(2),
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
226 year,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
227 month,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
228 int(match.group(1)))
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parents:
diff changeset
229