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annotate piecrust/sources/posts.py @ 281:0641fe5c3ef9

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serve: Don't crash when a post URL doesn't match our expectations. It can happen that a posts source's URL pattern matches that of something else, like a taxonomy page. In this case, don't crash when what we think will be integers turn out to be something else. Instead, just return that no page has been found.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 01 Mar 2015 21:41:05 -0800
parents ba857c693c72
children dd25bd3ce1f9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 glob
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5 import logging
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6 import datetime
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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 IPreparingSource
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11 from piecrust.sources.mixins import SimplePaginationSourceMixin
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12 from piecrust.sources.pageref import PageNotFoundError
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14
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15 logger = logging.getLogger(__name__)
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17
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18 class PostsSource(PageSource, IPreparingSource, SimplePaginationSourceMixin):
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19 PATH_FORMAT = None
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20
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21 def __init__(self, app, name, config):
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22 super(PostsSource, self).__init__(app, name, config)
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23 self.fs_endpoint = config.get('fs_endpoint', name)
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24 self.fs_endpoint_path = os.path.join(self.root_dir, self.fs_endpoint)
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25 self.supported_extensions = list(app.config.get('site/auto_formats').keys())
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26 self.default_auto_format = app.config.get('site/default_auto_format')
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28 @property
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29 def path_format(self):
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30 return self.__class__.PATH_FORMAT
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31
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32 def resolveRef(self, ref_path):
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33 return os.path.normpath(os.path.join(self.fs_endpoint_path, ref_path))
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34
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35 def findPagePath(self, metadata, mode):
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36 year = metadata.get('year')
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37 month = metadata.get('month')
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38 day = metadata.get('day')
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39 slug = metadata.get('slug')
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40
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41 try:
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42 if year is not None:
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43 year = int(year)
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44 if month is not None:
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45 month = int(month)
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46 if day is not None:
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47 day = int(day)
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48 except ValueError:
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49 return None, None
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a46354306738 Use properly formatted date components for the blog sources.
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50
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51 ext = metadata.get('ext')
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52 if ext is None:
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53 if len(self.supported_extensions) == 1:
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54 ext = self.supported_extensions[0]
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55 elif mode == MODE_CREATING and self.default_auto_format:
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56 ext = self.default_auto_format
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57
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58 replacements = {
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59 'year': '%04d' % year if year is not None else None,
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60 'month': '%02d' % month if month is not None else None,
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61 'day': '%02d' % day if day is not None else None,
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62 'slug': slug,
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63 'ext': ext
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64 }
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65 needs_recapture = False
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66 if year is None:
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67 needs_recapture = True
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68 replacements['year'] = '????'
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69 if month is None:
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70 needs_recapture = True
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71 replacements['month'] = '??'
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72 if day is None:
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73 needs_recapture = True
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74 replacements['day'] = '??'
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75 if slug is None:
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76 needs_recapture = True
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77 replacements['slug'] = '*'
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78 if ext is None:
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79 needs_recapture = True
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80 replacements['ext'] = '*'
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81 path = os.path.normpath(os.path.join(
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82 self.fs_endpoint_path, self.path_format % replacements))
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83
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84 if needs_recapture:
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85 if mode == MODE_CREATING:
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86 raise ValueError("Not enough information to find a post path.")
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87 possible_paths = glob.glob(path)
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88 if len(possible_paths) != 1:
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89 raise PageNotFoundError()
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90 path = possible_paths[0]
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91 elif mode == MODE_PARSING and not os.path.isfile(path):
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92 raise PageNotFoundError(path)
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93
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94 regex_repl = {
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95 'year': '(?P<year>\d{4})',
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96 'month': '(?P<month>\d{2})',
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97 'day': '(?P<day>\d{2})',
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98 'slug': '(?P<slug>.*)',
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99 'ext': '(?P<ext>.*)'
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100 }
101
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101 path_format_re = re.sub(r'([\-\.])', r'\\\1', self.path_format)
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102 pattern = path_format_re % regex_repl + '$'
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103 m = re.search(pattern, path.replace('\\', '/'))
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104 if not m:
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105 raise Exception("Expected to be able to match path with path "
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106 "format: %s" % path)
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107
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108 year = int(m.group('year'))
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109 month = int(m.group('month'))
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110 day = int(m.group('day'))
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111 timestamp = datetime.date(year, month, day)
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112 fac_metadata = {
109
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113 'year': year,
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114 'month': month,
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115 'day': day,
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116 'slug': m.group('slug'),
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117 'date': timestamp
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118 }
109
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119
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120 rel_path = os.path.relpath(path, self.fs_endpoint_path)
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121 rel_path = rel_path.replace('\\', '/')
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122 return rel_path, fac_metadata
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123
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124 def setupPrepareParser(self, parser, app):
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125 parser.add_argument('-d', '--date', help="The date of the post, "
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126 "in `year/month/day` format (defaults to today).")
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127 parser.add_argument('slug', help="The URL slug for the new post.")
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128
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129 def buildMetadata(self, args):
80
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diff changeset
130 dt = datetime.date.today()
3
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131 if args.date:
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diff changeset
132 if args.date == 'today':
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133 pass # Keep the default we had.
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diff changeset
134 elif args.date == 'tomorrow':
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135 dt += datetime.timedelta(days=1)
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diff changeset
136 elif args.date.startswith('+'):
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diff changeset
137 try:
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138 dt += datetime.timedelta(days=int(args.date.lstrip('+')))
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diff changeset
139 except ValueError:
838a9dd0e23c Better date creation for blog post scaffolding.
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140 raise Exception("Date offsets must be numbers.")
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diff changeset
141 else:
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diff changeset
142 try:
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diff changeset
143 year, month, day = [int(s) for s in args.date.split('/')]
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diff changeset
144 except ValueError:
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145 raise Exception("Dates must be of the form: YEAR/MONTH/DAY.")
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146 dt = datetime.date(year, month, day)
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147
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diff changeset
148 year, month, day = dt.year, dt.month, dt.day
3
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149 return {'year': year, 'month': month, 'day': day, 'slug': args.slug}
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150
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151 def _checkFsEndpointPath(self):
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152 if not os.path.isdir(self.fs_endpoint_path):
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153 if self.ignore_missing_dir:
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154 return False
3
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155 raise InvalidFileSystemEndpointError(self.name, self.fs_endpoint_path)
84
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156 return True
3
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157
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158 def _makeFactory(self, path, slug, year, month, day):
11
617191dec18e Fixes for Windows, make `findPagePath` return a ref path.
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159 path = path.replace('\\', '/')
3
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160 timestamp = datetime.date(year, month, day)
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161 metadata = {
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162 'slug': slug,
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163 'year': year,
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164 'month': month,
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165 'day': day,
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166 'date': timestamp}
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167 return PageFactory(self, path, metadata)
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168
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169
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170 class FlatPostsSource(PostsSource):
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171 SOURCE_NAME = 'posts/flat'
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172 PATH_FORMAT = '%(year)s-%(month)s-%(day)s_%(slug)s.%(ext)s'
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173
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174 def __init__(self, app, name, config):
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175 super(FlatPostsSource, self).__init__(app, name, config)
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176
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177 def buildPageFactories(self):
84
b3ce11b2cf36 Don't complain about missing `pages` or `posts` directories by default.
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diff changeset
178 if not self._checkFsEndpointPath():
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diff changeset
179 return
3
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180 logger.debug("Scanning for posts (flat) in: %s" % self.fs_endpoint_path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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181 pattern = re.compile(r'(\d{4})-(\d{2})-(\d{2})_(.*)\.(\w+)$')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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182 _, __, filenames = next(os.walk(self.fs_endpoint_path))
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183 for f in filenames:
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184 match = pattern.match(f)
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185 if match is None:
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186 name, ext = os.path.splitext(f)
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187 logger.warning("'%s' is not formatted as 'YYYY-MM-DD_slug-title.%s' "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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188 "and will be ignored. Is that a typo?" % (f, ext))
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189 continue
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190 yield self._makeFactory(
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191 f,
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diff changeset
192 match.group(4),
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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193 int(match.group(1)),
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194 int(match.group(2)),
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195 int(match.group(3)))
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196
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197
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198 class ShallowPostsSource(PostsSource):
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199 SOURCE_NAME = 'posts/shallow'
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200 PATH_FORMAT = '%(year)s/%(month)s-%(day)s_%(slug)s.%(ext)s'
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201
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202 def __init__(self, app, name, config):
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203 super(ShallowPostsSource, self).__init__(app, name, config)
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204
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205 def buildPageFactories(self):
84
b3ce11b2cf36 Don't complain about missing `pages` or `posts` directories by default.
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parents: 80
diff changeset
206 if not self._checkFsEndpointPath():
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diff changeset
207 return
3
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diff changeset
208 logger.debug("Scanning for posts (shallow) in: %s" % self.fs_endpoint_path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
209 year_pattern = re.compile(r'(\d{4})$')
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parents:
diff changeset
210 file_pattern = re.compile(r'(\d{2})-(\d{2})_(.*)\.(\w+)$')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
211 _, year_dirs, __ = next(os.walk(self.fs_endpoint_path))
5
474c9882decf Upgrade to Python 3.
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parents: 3
diff changeset
212 year_dirs = [d for d in year_dirs if year_pattern.match(d)]
3
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diff changeset
213 for yd in year_dirs:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
214 if year_pattern.match(yd) is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
215 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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parents:
diff changeset
216 "Is that a typo?")
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
217 continue
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
218 year = int(yd)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
219 year_dir = os.path.join(self.fs_endpoint_path, yd)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
220
95
cb6eadea0845 Fixed a bug with the `shallow` source. Add unit tests.
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parents: 84
diff changeset
221 _, __, filenames = next(os.walk(year_dir))
3
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diff changeset
222 for f in filenames:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
223 match = file_pattern.match(f)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
224 if match is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
225 name, ext = os.path.splitext(f)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
226 logger.warning("'%s' is not formatted as 'MM-DD_slug-title.%s' "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
227 "and will be ignored. Is that a typo?" % (f, ext))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
228 continue
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
229 yield self._makeFactory(
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
230 os.path.join(yd, f),
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
231 match.group(3),
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
232 year,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
233 int(match.group(1)),
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
234 int(match.group(2)))
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parents:
diff changeset
235
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
236
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237 class HierarchyPostsSource(PostsSource):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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238 SOURCE_NAME = 'posts/hierarchy'
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
239 PATH_FORMAT = '%(year)s/%(month)s/%(day)s_%(slug)s.%(ext)s'
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diff changeset
240
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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241 def __init__(self, app, name, config):
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242 super(HierarchyPostsSource, self).__init__(app, name, config)
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parents:
diff changeset
243
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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244 def buildPageFactories(self):
84
b3ce11b2cf36 Don't complain about missing `pages` or `posts` directories by default.
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parents: 80
diff changeset
245 if not self._checkFsEndpointPath():
b3ce11b2cf36 Don't complain about missing `pages` or `posts` directories by default.
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parents: 80
diff changeset
246 return
3
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diff changeset
247 logger.debug("Scanning for posts (hierarchy) in: %s" % self.fs_endpoint_path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
248 year_pattern = re.compile(r'(\d{4})$')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
249 month_pattern = re.compile(r'(\d{2})$')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
250 file_pattern = re.compile(r'(\d{2})_(.*)\.(\w+)$')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
251 _, year_dirs, __ = next(os.walk(self.fs_endpoint_path))
5
474c9882decf Upgrade to Python 3.
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parents: 3
diff changeset
252 year_dirs = [d for d in year_dirs if year_pattern.match(d)]
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
253 for yd in year_dirs:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
254 year = int(yd)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
255 year_dir = os.path.join(self.fs_endpoint_path, yd)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
256
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
257 _, month_dirs, __ = next(os.walk(year_dir))
5
474c9882decf Upgrade to Python 3.
Ludovic Chabant <ludovic@chabant.com>
parents: 3
diff changeset
258 month_dirs = [d for d in month_dirs if month_pattern.match(d)]
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
259 for md in month_dirs:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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260 month = int(md)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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261 month_dir = os.path.join(year_dir, md)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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262
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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263 _, __, filenames = next(os.walk(month_dir))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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264 for f in filenames:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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265 match = file_pattern.match(f)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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266 if match is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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267 name, ext = os.path.splitext(f)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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268 logger.warning("'%s' is not formatted as 'DD_slug-title.%s' "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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269 "and will be ignored. Is that a typo?" % (f, ext))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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270 continue
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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271 rel_name = os.path.join(yd, md, f)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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272 yield self._makeFactory(
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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273 rel_name,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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274 match.group(2),
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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275 year,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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276 month,
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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277 int(match.group(1)))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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278