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annotate piecrust/sources/posts.py @ 576:0c74a6c4533d

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sources: Add code to support "interactive" metadata acquisition.
author Ludovic Chabant <ludovic@chabant.com>
date Sat, 19 Dec 2015 18:07:21 -0800
parents bab91fcef741
children ff404adfcf45
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rev   line source
3
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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 logging
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5 import datetime
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6 from piecrust import osutil
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7 from piecrust.sources.base import (
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8 PageSource, InvalidFileSystemEndpointError, PageFactory,
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9 MODE_CREATING, MODE_PARSING)
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10 from piecrust.sources.interfaces import (
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11 IPreparingSource, IInteractiveSource, InteractiveField)
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12 from piecrust.sources.mixins import SimplePaginationSourceMixin
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14
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15 logger = logging.getLogger(__name__)
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16
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17
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18 class PostsSource(PageSource, IPreparingSource, IInteractiveSource,
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19 SimplePaginationSourceMixin):
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20 PATH_FORMAT = None
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21
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22 def __init__(self, app, name, config):
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23 super(PostsSource, self).__init__(app, name, config)
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24 self.fs_endpoint = config.get('fs_endpoint', name)
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25 self.fs_endpoint_path = os.path.join(self.root_dir, self.fs_endpoint)
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26 self.supported_extensions = list(app.config.get('site/auto_formats').keys())
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27 self.default_auto_format = app.config.get('site/default_auto_format')
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29 @property
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30 def path_format(self):
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31 return self.__class__.PATH_FORMAT
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32
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33 def resolveRef(self, ref_path):
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34 path = os.path.normpath(os.path.join(self.fs_endpoint_path, ref_path))
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35 metadata = self._parseMetadataFromPath(ref_path)
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36 return path, metadata
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37
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38 def findPageFactory(self, metadata, mode):
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39 year = metadata.get('year')
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40 month = metadata.get('month')
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41 day = metadata.get('day')
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42 slug = metadata.get('slug')
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43
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44 try:
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45 if year is not None:
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46 year = int(year)
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47 if month is not None:
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48 month = int(month)
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49 if day is not None:
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50 day = int(day)
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51 except ValueError:
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52 return None
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a46354306738 Use properly formatted date components for the blog sources.
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53
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54 ext = metadata.get('ext')
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55 if ext is None:
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56 if len(self.supported_extensions) == 1:
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57 ext = self.supported_extensions[0]
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58 elif mode == MODE_CREATING and self.default_auto_format:
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59 ext = self.default_auto_format
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60
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61 replacements = {
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62 'year': '%04d' % year if year is not None else None,
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63 'month': '%02d' % month if month is not None else None,
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64 'day': '%02d' % day if day is not None else None,
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65 'slug': slug,
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66 'ext': ext
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67 }
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68 needs_recapture = False
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69 if year is None:
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70 needs_recapture = True
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71 replacements['year'] = '????'
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72 if month is None:
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73 needs_recapture = True
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74 replacements['month'] = '??'
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75 if day is None:
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76 needs_recapture = True
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77 replacements['day'] = '??'
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78 if slug is None:
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79 needs_recapture = True
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80 replacements['slug'] = '*'
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81 if ext is None:
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82 needs_recapture = True
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83 replacements['ext'] = '*'
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84 path = os.path.normpath(os.path.join(
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85 self.fs_endpoint_path, self.path_format % replacements))
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86
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87 if needs_recapture:
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88 if mode == MODE_CREATING:
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89 raise ValueError("Not enough information to find a post path.")
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90 possible_paths = osutil.glob(path)
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91 if len(possible_paths) != 1:
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92 return None
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93 path = possible_paths[0]
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94 elif mode == MODE_PARSING and not os.path.isfile(path):
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95 return None
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96
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97 rel_path = os.path.relpath(path, self.fs_endpoint_path)
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98 rel_path = rel_path.replace('\\', '/')
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99 fac_metadata = self._parseMetadataFromPath(rel_path)
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100 return PageFactory(self, rel_path, fac_metadata)
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101
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102 def setupPrepareParser(self, parser, app):
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103 parser.add_argument(
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104 '-d', '--date', help="The date of the post, "
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105 "in `year/month/day` format (defaults to today).")
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106 parser.add_argument('slug', help="The URL slug for the new post.")
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107
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108 def buildMetadata(self, args):
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109 dt = datetime.date.today()
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110 if args.date:
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111 if args.date == 'today':
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112 pass # Keep the default we had.
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113 elif args.date == 'tomorrow':
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114 dt += datetime.timedelta(days=1)
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115 elif args.date.startswith('+'):
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116 try:
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117 dt += datetime.timedelta(days=int(args.date.lstrip('+')))
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118 except ValueError:
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119 raise Exception("Date offsets must be numbers.")
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120 else:
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121 try:
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122 year, month, day = [int(s) for s in args.date.split('/')]
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123 except ValueError:
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124 raise Exception("Dates must be of the form: "
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125 "YEAR/MONTH/DAY.")
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126 dt = datetime.date(year, month, day)
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127
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128 year, month, day = dt.year, dt.month, dt.day
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129 return {'year': year, 'month': month, 'day': day, 'slug': args.slug}
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130
576
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131 def getInteractiveFields(self):
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132 dt = datetime.date.today()
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133 return [
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134 InteractiveField('year', InteractiveField.TYPE_INT, dt.year),
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135 InteractiveField('month', InteractiveField.TYPE_INT, dt.month),
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136 InteractiveField('day', InteractiveField.TYPE_INT, dt.day),
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137 InteractiveField('slug', InteractiveField.TYPE_STRING, 'new-post')]
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138
3
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139 def _checkFsEndpointPath(self):
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140 if not os.path.isdir(self.fs_endpoint_path):
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141 if self.ignore_missing_dir:
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142 return False
3
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143 raise InvalidFileSystemEndpointError(self.name, self.fs_endpoint_path)
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144 return True
3
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145
363
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146 def _parseMetadataFromPath(self, path):
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147 regex_repl = {
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148 'year': '(?P<year>\d{4})',
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149 'month': '(?P<month>\d{2})',
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150 'day': '(?P<day>\d{2})',
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151 'slug': '(?P<slug>.*)',
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152 'ext': '(?P<ext>.*)'
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153 }
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154 path_format_re = re.sub(r'([\-\.])', r'\\\1', self.path_format)
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155 pattern = path_format_re % regex_repl + '$'
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156 m = re.search(pattern, path.replace('\\', '/'))
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157 if not m:
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158 raise Exception("Expected to be able to match path with path "
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159 "format: %s" % path)
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160
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161 year = int(m.group('year'))
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162 month = int(m.group('month'))
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163 day = int(m.group('day'))
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164 timestamp = datetime.date(year, month, day)
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165 metadata = {
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166 'year': year,
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167 'month': month,
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168 'day': day,
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169 'slug': m.group('slug'),
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170 'date': timestamp
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171 }
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172 return metadata
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173
3
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174 def _makeFactory(self, path, slug, year, month, day):
11
617191dec18e Fixes for Windows, make `findPagePath` return a ref path.
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175 path = path.replace('\\', '/')
3
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176 timestamp = datetime.date(year, month, day)
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177 metadata = {
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178 'slug': slug,
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179 'year': year,
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180 'month': month,
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181 'day': day,
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182 'date': timestamp}
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183 return PageFactory(self, path, metadata)
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184
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185
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186 class FlatPostsSource(PostsSource):
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187 SOURCE_NAME = 'posts/flat'
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188 PATH_FORMAT = '%(year)s-%(month)s-%(day)s_%(slug)s.%(ext)s'
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189
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190 def __init__(self, app, name, config):
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191 super(FlatPostsSource, self).__init__(app, name, config)
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192
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193 def buildPageFactories(self):
84
b3ce11b2cf36 Don't complain about missing `pages` or `posts` directories by default.
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diff changeset
194 if not self._checkFsEndpointPath():
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diff changeset
195 return
3
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196 logger.debug("Scanning for posts (flat) in: %s" % self.fs_endpoint_path)
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197 pattern = re.compile(r'(\d{4})-(\d{2})-(\d{2})_(.*)\.(\w+)$')
520
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
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diff changeset
198 _, __, filenames = next(osutil.walk(self.fs_endpoint_path))
3
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199 for f in filenames:
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200 match = pattern.match(f)
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201 if match is None:
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202 name, ext = os.path.splitext(f)
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diff changeset
203 logger.warning("'%s' is not formatted as 'YYYY-MM-DD_slug-title.%s' "
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diff changeset
204 "and will be ignored. Is that a typo?" % (f, ext))
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diff changeset
205 continue
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diff changeset
206 yield self._makeFactory(
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diff changeset
207 f,
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diff changeset
208 match.group(4),
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diff changeset
209 int(match.group(1)),
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diff changeset
210 int(match.group(2)),
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diff changeset
211 int(match.group(3)))
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diff changeset
212
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diff changeset
213
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214 class ShallowPostsSource(PostsSource):
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215 SOURCE_NAME = 'posts/shallow'
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216 PATH_FORMAT = '%(year)s/%(month)s-%(day)s_%(slug)s.%(ext)s'
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217
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218 def __init__(self, app, name, config):
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219 super(ShallowPostsSource, self).__init__(app, name, config)
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220
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221 def buildPageFactories(self):
84
b3ce11b2cf36 Don't complain about missing `pages` or `posts` directories by default.
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parents: 80
diff changeset
222 if not self._checkFsEndpointPath():
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diff changeset
223 return
3
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224 logger.debug("Scanning for posts (shallow) in: %s" % self.fs_endpoint_path)
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diff changeset
225 year_pattern = re.compile(r'(\d{4})$')
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diff changeset
226 file_pattern = re.compile(r'(\d{2})-(\d{2})_(.*)\.(\w+)$')
520
bab91fcef741 bake/serve: Improve support for unicode, add slugification options.
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parents: 516
diff changeset
227 _, year_dirs, __ = next(osutil.walk(self.fs_endpoint_path))
5
474c9882decf Upgrade to Python 3.
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parents: 3
diff changeset
228 year_dirs = [d for d in year_dirs if year_pattern.match(d)]
3
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diff changeset
229 for yd in year_dirs:
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230 if year_pattern.match(yd) is None:
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diff changeset
231 logger.warning("'%s' is not formatted as 'YYYY' and will be ignored. "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
232 "Is that a typo?")
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diff changeset
233 continue
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diff changeset
234 year = int(yd)
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235 year_dir = os.path.join(self.fs_endpoint_path, yd)
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diff changeset
236
520
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diff changeset
237 _, __, filenames = next(osutil.walk(year_dir))
3
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diff changeset
238 for f in filenames:
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diff changeset
239 match = file_pattern.match(f)
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diff changeset
240 if match is None:
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diff changeset
241 name, ext = os.path.splitext(f)
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diff changeset
242 logger.warning("'%s' is not formatted as 'MM-DD_slug-title.%s' "
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diff changeset
243 "and will be ignored. Is that a typo?" % (f, ext))
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diff changeset
244 continue
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diff changeset
245 yield self._makeFactory(
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diff changeset
246 os.path.join(yd, f),
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diff changeset
247 match.group(3),
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diff changeset
248 year,
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diff changeset
249 int(match.group(1)),
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diff changeset
250 int(match.group(2)))
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parents:
diff changeset
251
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diff changeset
252
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253 class HierarchyPostsSource(PostsSource):
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254 SOURCE_NAME = 'posts/hierarchy'
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parents:
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255 PATH_FORMAT = '%(year)s/%(month)s/%(day)s_%(slug)s.%(ext)s'
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256
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257 def __init__(self, app, name, config):
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258 super(HierarchyPostsSource, self).__init__(app, name, config)
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259
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260 def buildPageFactories(self):
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261 if not self._checkFsEndpointPath():
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262 return
3
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263 logger.debug("Scanning for posts (hierarchy) in: %s" % self.fs_endpoint_path)
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264 year_pattern = re.compile(r'(\d{4})$')
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265 month_pattern = re.compile(r'(\d{2})$')
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266 file_pattern = re.compile(r'(\d{2})_(.*)\.(\w+)$')
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267 _, year_dirs, __ = next(osutil.walk(self.fs_endpoint_path))
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268 year_dirs = [d for d in year_dirs if year_pattern.match(d)]
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269 for yd in year_dirs:
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270 year = int(yd)
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271 year_dir = os.path.join(self.fs_endpoint_path, yd)
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272
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273 _, month_dirs, __ = next(osutil.walk(year_dir))
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274 month_dirs = [d for d in month_dirs if month_pattern.match(d)]
3
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275 for md in month_dirs:
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276 month = int(md)
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277 month_dir = os.path.join(year_dir, md)
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278
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279 _, __, filenames = next(osutil.walk(month_dir))
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280 for f in filenames:
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281 match = file_pattern.match(f)
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282 if match is None:
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283 name, ext = os.path.splitext(f)
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284 logger.warning("'%s' is not formatted as 'DD_slug-title.%s' "
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285 "and will be ignored. Is that a typo?" % (f, ext))
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286 continue
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287 rel_name = os.path.join(yd, md, f)
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288 yield self._makeFactory(
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289 rel_name,
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290 match.group(2),
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291 year,
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292 month,
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293 int(match.group(1)))
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294