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annotate piecrust/baking/records.py @ 411:e7b865f8f335

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bake: Enable multiprocess baking. Baking is now done by running a worker per CPU, and sending jobs to them. This changes several things across the codebase: * Ability to not cache things related to pages other than the 'main' page (i.e. the page at the bottom of the execution stack). * Decouple the baking process from the bake records, so only the main process keeps track (and modifies) the bake record. * Remove the need for 'batch page getters' and loading a page directly from the page factories. There are various smaller changes too included here, including support for scope performance timers that are saved with the bake record and can be printed out to the console. Yes I got carried away. For testing, the in-memory 'mock' file-system doesn't work anymore, since we're spawning processes, so this is replaced by a 'tmpfs' file-system which is saved in temporary files on disk and deleted after tests have run.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 12 Jun 2015 17:09:19 -0700
parents c12ee6936b8c
children 0e9a94b7fdfa
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1 import copy
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2 import os.path
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3 import hashlib
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4 import logging
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5 from piecrust.records import Record, TransitionalRecord
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8 logger = logging.getLogger(__name__)
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11 def _get_transition_key(path, taxonomy_info=None):
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12 key = path
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13 if taxonomy_info:
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14 key += '+%s:%s=' % (taxonomy_info.source_name,
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15 taxonomy_info.taxonomy_name)
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16 if isinstance(taxonomy_info.term, tuple):
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17 key += '/'.join(taxonomy_info.term)
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18 else:
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19 key += taxonomy_info.term
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20 return hashlib.md5(key.encode('utf8')).hexdigest()
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23 class BakeRecord(Record):
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24 RECORD_VERSION = 14
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25
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26 def __init__(self):
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27 super(BakeRecord, self).__init__()
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28 self.out_dir = None
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29 self.bake_time = None
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30 self.timers = None
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31 self.success = True
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33
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34 class BakePassInfo(object):
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35 def __init__(self):
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36 self.used_source_names = set()
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37 self.used_taxonomy_terms = set()
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39
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40 class SubPageBakeInfo(object):
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41 FLAG_NONE = 0
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42 FLAG_BAKED = 2**0
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43 FLAG_FORCED_BY_SOURCE = 2**1
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44 FLAG_FORCED_BY_NO_PREVIOUS = 2**2
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45 FLAG_FORCED_BY_PREVIOUS_ERRORS = 2**3
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46 FLAG_FORMATTING_INVALIDATED = 2**4
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47
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48 def __init__(self, out_uri, out_path):
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49 self.out_uri = out_uri
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50 self.out_path = out_path
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51 self.flags = self.FLAG_NONE
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52 self.errors = []
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53 self.render_passes = {}
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54
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55 @property
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56 def was_clean(self):
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57 return (self.flags & self.FLAG_BAKED) == 0 and len(self.errors) == 0
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58
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59 @property
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60 def was_baked(self):
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61 return (self.flags & self.FLAG_BAKED) != 0
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63 @property
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64 def was_baked_successfully(self):
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65 return self.was_baked and len(self.errors) == 0
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66
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67 def collapseRenderPasses(self, other):
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68 for p, pinfo in self.render_passes.items():
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69 if p not in other.render_passes:
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70 other.render_passes[p] = copy.deepcopy(pinfo)
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72
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73 class PageBakeInfo(object):
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74 def __init__(self):
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75 self.subs = []
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76 self.assets = []
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78
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79 class FirstRenderInfo(object):
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80 def __init__(self):
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81 self.assets = []
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82 self.used_pagination = False
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83 self.pagination_has_more = False
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84
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85
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86 class TaxonomyInfo(object):
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87 def __init__(self, taxonomy_name, source_name, term):
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88 self.taxonomy_name = taxonomy_name
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89 self.source_name = source_name
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90 self.term = term
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92
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93 class BakeRecordEntry(object):
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94 """ An entry in the bake record.
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95
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96 The `taxonomy_info` attribute should be a tuple of the form:
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97 (taxonomy name, term, source name)
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98 """
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99 FLAG_NONE = 0
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100 FLAG_NEW = 2**0
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101 FLAG_SOURCE_MODIFIED = 2**1
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102 FLAG_OVERRIDEN = 2**2
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103
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104 def __init__(self, source_name, path, taxonomy_info=None):
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105 self.source_name = source_name
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106 self.path = path
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107 self.taxonomy_info = taxonomy_info
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108 self.flags = self.FLAG_NONE
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109 self.config = None
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110 self.errors = []
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111 self.bake_info = None
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112 self.first_render_info = None
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113
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114 @property
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115 def path_mtime(self):
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116 return os.path.getmtime(self.path)
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118 @property
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119 def was_overriden(self):
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120 return (self.flags & self.FLAG_OVERRIDEN) != 0
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122 @property
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123 def num_subs(self):
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124 if self.bake_info is None:
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125 return 0
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126 return len(self.bake_info.subs)
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127
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128 @property
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129 def was_any_sub_baked(self):
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130 if self.bake_info is not None:
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131 for o in self.bake_info.subs:
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132 if o.was_baked:
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133 return True
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134 return False
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135
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diff changeset
136 @property
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137 def subs(self):
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138 if self.bake_info is not None:
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139 return self.bake_info.subs
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140 return []
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141
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142 @property
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143 def has_any_error(self):
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144 if len(self.errors) > 0:
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145 return True
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146 if self.bake_info is not None:
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147 for o in self.bake_info.subs:
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148 if len(o.errors) > 0:
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149 return True
338
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150 return False
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151
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152 def getSub(self, sub_index):
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153 if self.bake_info is None:
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154 raise Exception("No bake info available on this entry.")
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155 return self.bake_info.subs[sub_index - 1]
338
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156
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157 def getAllErrors(self):
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c12ee6936b8c bake: Return all errors from a bake record entry when asked for it.
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diff changeset
158 yield from self.errors
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159 if self.bake_info is not None:
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160 for o in self.bake_info.subs:
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161 yield from o.errors
338
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162
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163 def getAllUsedSourceNames(self):
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164 res = set()
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165 if self.bake_info is not None:
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166 for o in self.bake_info.subs:
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167 for p, pinfo in o.render_passes.items():
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168 res |= pinfo.used_source_names
338
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diff changeset
169 return res
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diff changeset
170
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171 def getAllUsedTaxonomyTerms(self):
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172 res = set()
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173 if self.bake_info is not None:
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174 for o in self.bake_info.subs:
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diff changeset
175 for p, pinfo in o.render_passes.items():
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diff changeset
176 res |= pinfo.used_taxonomy_terms
338
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177 return res
3
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178
23
923699e816d0 Don't try to get the name of a source that doesn't have one.
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179
120
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180 class TransitionalBakeRecord(TransitionalRecord):
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181 def __init__(self, previous_path=None):
120
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182 super(TransitionalBakeRecord, self).__init__(BakeRecord,
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diff changeset
183 previous_path)
338
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diff changeset
184 self.dirty_source_names = set()
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185
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186 def addEntry(self, entry):
91
e88e330eb8dc Improvements to incremental baking and cache invalidating.
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diff changeset
187 if (self.previous.bake_time and
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diff changeset
188 entry.path_mtime >= self.previous.bake_time):
411
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diff changeset
189 entry.flags |= BakeRecordEntry.FLAG_SOURCE_MODIFIED
338
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diff changeset
190 self.dirty_source_names.add(entry.source_name)
120
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diff changeset
191 super(TransitionalBakeRecord, self).addEntry(entry)
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diff changeset
192
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diff changeset
193 def getTransitionKey(self, entry):
411
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diff changeset
194 return _get_transition_key(entry.path, entry.taxonomy_info)
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195
411
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196 def getPreviousAndCurrentEntries(self, path, taxonomy_info=None):
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diff changeset
197 key = _get_transition_key(path, taxonomy_info)
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diff changeset
198 pair = self.transitions.get(key)
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diff changeset
199 return pair
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diff changeset
200
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diff changeset
201 def getOverrideEntry(self, path, uri):
50
2fec3ee1298f Properly override pages between realms.
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parents: 23
diff changeset
202 for pair in self.transitions.values():
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parents: 23
diff changeset
203 cur = pair[1]
411
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diff changeset
204 if cur and cur.path != path:
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
205 for o in cur.subs:
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Ludovic Chabant <ludovic@chabant.com>
parents: 400
diff changeset
206 if o.out_uri == uri:
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parents: 400
diff changeset
207 return cur
50
2fec3ee1298f Properly override pages between realms.
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parents: 23
diff changeset
208 return None
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parents: 23
diff changeset
209
411
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diff changeset
210 def getPreviousEntry(self, path, taxonomy_info=None):
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diff changeset
211 pair = self.getPreviousAndCurrentEntries(path, taxonomy_info)
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f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
212 if pair is not None:
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parents:
diff changeset
213 return pair[0]
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214 return None
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diff changeset
215
411
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diff changeset
216 def getCurrentEntry(self, path, taxonomy_info=None):
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diff changeset
217 pair = self.getPreviousAndCurrentEntries(path, taxonomy_info)
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parents: 400
diff changeset
218 if pair is not None:
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diff changeset
219 return pair[1]
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diff changeset
220 return None
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diff changeset
221
338
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diff changeset
222 def collapseEntry(self, prev_entry):
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diff changeset
223 cur_entry = copy.deepcopy(prev_entry)
411
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parents: 400
diff changeset
224 cur_entry.flags = BakeRecordEntry.FLAG_NONE
338
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parents: 334
diff changeset
225 for o in cur_entry.subs:
411
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parents: 400
diff changeset
226 o.flags = SubPageBakeInfo.FLAG_NONE
338
938be93215cb bake: Improve render context and bake record, fix incremental bake bugs.
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parents: 334
diff changeset
227 self.addEntry(cur_entry)
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parents:
diff changeset
228
120
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diff changeset
229 def getDeletions(self):
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diff changeset
230 for prev, cur in self.transitions.values():
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parents: 96
diff changeset
231 if prev and not cur:
338
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parents: 334
diff changeset
232 for sub in prev.subs:
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parents: 334
diff changeset
233 yield (sub.out_path, 'previous source file was removed')
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parents: 334
diff changeset
234 elif prev and cur:
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parents: 334
diff changeset
235 prev_out_paths = [o.out_path for o in prev.subs]
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parents: 334
diff changeset
236 cur_out_paths = [o.out_path for o in cur.subs]
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parents: 334
diff changeset
237 diff = set(prev_out_paths) - set(cur_out_paths)
120
133845647083 Better error management and removal support in baking/processing.
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parents: 96
diff changeset
238 for p in diff:
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parents: 96
diff changeset
239 yield (p, 'source file changed outputs')
3
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parents:
diff changeset
240
338
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parents: 334
diff changeset
241 def _onNewEntryAdded(self, entry):
411
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parents: 400
diff changeset
242 entry.flags |= BakeRecordEntry.FLAG_NEW
338
938be93215cb bake: Improve render context and bake record, fix incremental bake bugs.
Ludovic Chabant <ludovic@chabant.com>
parents: 334
diff changeset
243