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annotate piecrust/pipelines/page.py @ 853:f070a4fc033c

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core: Continue PieCrust3 refactor, simplify pages. The asset pipeline is still the only function pipeline at this point. * No more `QualifiedPage`, and several other pieces of code deleted. * Data providers are simpler and more focused. For instance, the page iterator doesn't try to support other types of items. * Route parameters are proper known source metadata to remove the confusion between the two. * Make the baker and pipeline more correctly manage records and record histories. * Add support for record collapsing and deleting stale outputs in the asset pipeline.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 21 May 2017 00:06:59 -0700
parents 4850f8c21b6e
children 08e02c2a2a1a
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852
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1 import hashlib
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2 from piecrust.pipelines.base import ContentPipeline
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3
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4
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5 class PagePipeline(ContentPipeline):
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6 PIPELINE_NAME = 'page'
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7 PIPELINE_PASSES = 3
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8
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9 def initialize(self, ctx):
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10 pass
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11
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12 def run(self, content_item, ctx):
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13 raise NotImplementedError()
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14
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15 def shutdown(self, ctx):
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16 pass
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17
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18 def collapseRecords(self, record_history):
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19 pass
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20
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21 def getDeletions(self, record_history):
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22 for prev, cur in record_history.diffs():
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23 if prev and not cur:
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24 for sub in prev.subs:
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25 yield (sub.out_path, 'previous source file was removed')
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26 elif prev and cur:
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27 prev_out_paths = [o.out_path for o in prev.subs]
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28 cur_out_paths = [o.out_path for o in cur.subs]
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29 diff = set(prev_out_paths) - set(cur_out_paths)
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30 for p in diff:
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31 yield (p, 'source file changed outputs')
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32
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33
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34 JOB_LOAD, JOB_RENDER_FIRST, JOB_BAKE = range(0, 3)
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35
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36
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37 def _get_transition_key(path, extra_key=None):
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38 key = path
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39 if extra_key:
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40 key += '+%s' % extra_key
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41 return hashlib.md5(key.encode('utf8')).hexdigest()
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42
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43
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44 # def getOverrideEntry(self, path, uri):
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45 # for pair in self.transitions.values():
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46 # cur = pair[1]
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47 # if cur and cur.path != path:
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48 # for o in cur.subs:
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49 # if o.out_uri == uri:
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50 # return cur
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51 # return None
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52
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53
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54
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55 # # Create the job handlers.
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56 # job_handlers = {
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57 # JOB_LOAD: LoadJobHandler(self.ctx),
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58 # JOB_RENDER_FIRST: RenderFirstSubJobHandler(self.ctx),
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59 # JOB_BAKE: BakeJobHandler(self.ctx)}
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60 # for jt, jh in job_handlers.items():
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61 # app.env.registerTimer(type(jh).__name__)
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62 # self.job_handlers = job_handlers
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63 #
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64 # def process(self, job):
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65 # handler = self.job_handlers[job['type']]
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66 # with self.ctx.app.env.timerScope(type(handler).__name__):
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67 # return handler.handleJob(job['job'])
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68
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69 # def _loadRealmPages(self, record_history, pool, factories):
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70 # def _handler(res):
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71 # # Create the record entry for this page.
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72 # # This will also update the `dirty_source_names` for the record
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73 # # as we add page files whose last modification times are later
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74 # # than the last bake.
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75 # record_entry = BakeRecordEntry(res['source_name'], res['path'])
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76 # record_entry.config = res['config']
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77 # record_entry.timestamp = res['timestamp']
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78 # if res['errors']:
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79 # record_entry.errors += res['errors']
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80 # record_history.current.success = False
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81 # self._logErrors(res['path'], res['errors'])
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82 # record_history.addEntry(record_entry)
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83 #
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84 # logger.debug("Loading %d realm pages..." % len(factories))
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85 # with format_timed_scope(logger,
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86 # "loaded %d pages" % len(factories),
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87 # level=logging.DEBUG, colored=False,
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88 # timer_env=self.app.env,
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89 # timer_category='LoadJob'):
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90 # jobs = []
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91 # for fac in factories:
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92 # job = {
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93 # 'type': JOB_LOAD,
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94 # 'job': save_factory(fac)}
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95 # jobs.append(job)
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96 # ar = pool.queueJobs(jobs, handler=_handler)
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97 # ar.wait()
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98 #
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99 # def _renderRealmPages(self, record_history, pool, factories):
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100 # def _handler(res):
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101 # entry = record_history.getCurrentEntry(res['path'])
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102 # if res['errors']:
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103 # entry.errors += res['errors']
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104 # record_history.current.success = False
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105 # self._logErrors(res['path'], res['errors'])
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106 #
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107 # logger.debug("Rendering %d realm pages..." % len(factories))
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108 # with format_timed_scope(logger,
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109 # "prepared %d pages" % len(factories),
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110 # level=logging.DEBUG, colored=False,
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111 # timer_env=self.app.env,
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112 # timer_category='RenderFirstSubJob'):
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113 # jobs = []
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114 # for fac in factories:
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115 # record_entry = record_history.getCurrentEntry(fac.path)
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116 # if record_entry.errors:
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117 # logger.debug("Ignoring %s because it had previous "
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118 # "errors." % fac.ref_spec)
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119 # continue
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120 #
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121 # # Make sure the source and the route exist for this page,
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122 # # otherwise we add errors to the record entry and we'll skip
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123 # # this page for the rest of the bake.
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124 # source = self.app.getSource(fac.source.name)
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125 # if source is None:
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126 # record_entry.errors.append(
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127 # "Can't get source for page: %s" % fac.ref_spec)
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128 # logger.error(record_entry.errors[-1])
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129 # continue
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130 #
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131 # route = self.app.getSourceRoute(fac.source.name, fac.metadata)
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132 # if route is None:
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133 # record_entry.errors.append(
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134 # "Can't get route for page: %s" % fac.ref_spec)
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135 # logger.error(record_entry.errors[-1])
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136 # continue
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137 #
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138 # # All good, queue the job.
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139 # route_index = self.app.routes.index(route)
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140 # job = {
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141 # 'type': JOB_RENDER_FIRST,
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142 # 'job': {
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143 # 'factory_info': save_factory(fac),
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144 # 'route_index': route_index
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145 # }
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146 # }
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147 # jobs.append(job)
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148 #
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149 # ar = pool.queueJobs(jobs, handler=_handler)
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150 # ar.wait()
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151 #
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152 # def _bakeRealmPages(self, record_history, pool, realm, factories):
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153 # def _handler(res):
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154 # entry = record_history.getCurrentEntry(res['path'])
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155 # entry.subs = res['sub_entries']
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156 # if res['errors']:
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157 # entry.errors += res['errors']
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158 # self._logErrors(res['path'], res['errors'])
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159 # if entry.has_any_error:
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160 # record_history.current.success = False
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161 # if entry.subs and entry.was_any_sub_baked:
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162 # record_history.current.baked_count[realm] += 1
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163 # record_history.current.total_baked_count[realm] += len(entry.subs)
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164 #
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165 # logger.debug("Baking %d realm pages..." % len(factories))
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166 # with format_timed_scope(logger,
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167 # "baked %d pages" % len(factories),
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168 # level=logging.DEBUG, colored=False,
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169 # timer_env=self.app.env,
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170 # timer_category='BakeJob'):
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171 # jobs = []
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172 # for fac in factories:
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173 # job = self._makeBakeJob(record_history, fac)
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174 # if job is not None:
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175 # jobs.append(job)
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176 #
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177 # ar = pool.queueJobs(jobs, handler=_handler)
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178 # ar.wait()
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179 #
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180
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181
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182 # def _makeBakeJob(self, record_history, fac):
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183 # # Get the previous (if any) and current entry for this page.
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184 # pair = record_history.getPreviousAndCurrentEntries(fac.path)
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185 # assert pair is not None
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186 # prev_entry, cur_entry = pair
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187 # assert cur_entry is not None
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188 #
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189 # # Ignore if there were errors in the previous passes.
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190 # if cur_entry.errors:
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191 # logger.debug("Ignoring %s because it had previous "
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192 # "errors." % fac.ref_spec)
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193 # return None
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194 #
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195 # # Build the route metadata and find the appropriate route.
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196 # page = fac.buildPage()
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197 # route_metadata = create_route_metadata(page)
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198 # route = self.app.getSourceRoute(fac.source.name, route_metadata)
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199 # assert route is not None
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200 #
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201 # # Figure out if this page is overriden by another previously
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202 # # baked page. This happens for example when the user has
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203 # # made a page that has the same page/URL as a theme page.
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204 # uri = route.getUri(route_metadata)
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diff changeset
205 # override_entry = record_history.getOverrideEntry(page.path, uri)
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206 # if override_entry is not None:
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207 # override_source = self.app.getSource(
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208 # override_entry.source_name)
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diff changeset
209 # if override_source.realm == fac.source.realm:
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210 # cur_entry.errors.append(
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diff changeset
211 # "Page '%s' maps to URL '%s' but is overriden "
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parents:
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212 # "by page '%s'." %
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213 # (fac.ref_spec, uri, override_entry.path))
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diff changeset
214 # logger.error(cur_entry.errors[-1])
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215 # cur_entry.flags |= BakeRecordEntry.FLAG_OVERRIDEN
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216 # return None
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217 #
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218 # route_index = self.app.routes.index(route)
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219 # job = {
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220 # 'type': JOB_BAKE,
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diff changeset
221 # 'job': {
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222 # 'factory_info': save_factory(fac),
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223 # 'generator_name': None,
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parents:
diff changeset
224 # 'generator_record_key': None,
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diff changeset
225 # 'route_index': route_index,
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diff changeset
226 # 'route_metadata': route_metadata,
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227 # 'dirty_source_names': record_history.dirty_source_names
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228 # }
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229 # }
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230 # return job
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231 #
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232 # def _handleDeletetions(self, record_history):
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233 # logger.debug("Handling deletions...")
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234 # for path, reason in record_history.getDeletions():
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235 # logger.debug("Removing '%s': %s" % (path, reason))
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236 # record_history.current.deleted.append(path)
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237 # try:
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238 # os.remove(path)
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239 # logger.info('[delete] %s' % path)
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240 # except OSError:
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241 # # Not a big deal if that file had already been removed
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242 # # by the user.
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243 # pass
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244 #
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245
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246
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247
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248 #def save_factory(fac):
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249 # return {
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250 # 'source_name': fac.source.name,
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251 # 'rel_path': fac.rel_path,
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252 # 'metadata': fac.metadata}
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253 #
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254 #
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255 #def load_factory(app, info):
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256 # source = app.getSource(info['source_name'])
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257 # return PageFactory(source, info['rel_path'], info['metadata'])
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258 #
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259 #
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260 #class LoadJobHandler(JobHandler):
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261 # def handleJob(self, job):
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262 # # Just make sure the page has been cached.
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263 # fac = load_factory(self.app, job)
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264 # logger.debug("Loading page: %s" % fac.ref_spec)
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265 # self.app.env.addManifestEntry('LoadJobs', fac.ref_spec)
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266 # result = {
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267 # 'source_name': fac.source.name,
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268 # 'path': fac.path,
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269 # 'config': None,
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270 # 'timestamp': None,
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271 # 'errors': None}
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272 # try:
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273 # page = fac.buildPage()
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274 # page._load()
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275 # result['config'] = page.config.getAll()
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276 # result['timestamp'] = page.datetime.timestamp()
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277 # except Exception as ex:
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278 # logger.debug("Got loading error. Sending it to master.")
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279 # result['errors'] = _get_errors(ex)
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280 # if self.ctx.app.debug:
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281 # logger.exception(ex)
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282 # return result
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283 #
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284 #
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285 #class RenderFirstSubJobHandler(JobHandler):
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286 # def handleJob(self, job):
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287 # # Render the segments for the first sub-page of this page.
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288 # fac = load_factory(self.app, job['factory_info'])
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289 # self.app.env.addManifestEntry('RenderJobs', fac.ref_spec)
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290 #
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291 # route_index = job['route_index']
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292 # route = self.app.routes[route_index]
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293 #
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294 # page = fac.buildPage()
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295 # qp = QualifiedPage(page, route, route_metadata)
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296 # ctx = RenderingContext(qp)
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297 # self.app.env.abort_source_use = True
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298 #
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299 # result = {
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300 # 'path': fac.path,
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301 # 'aborted': False,
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302 # 'errors': None}
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303 # logger.debug("Preparing page: %s" % fac.ref_spec)
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304 # try:
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305 # render_page_segments(ctx)
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306 # except AbortedSourceUseError:
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307 # logger.debug("Page %s was aborted." % fac.ref_spec)
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308 # self.app.env.stepCounter("SourceUseAbortions")
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309 # result['aborted'] = True
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310 # except Exception as ex:
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311 # logger.debug("Got rendering error. Sending it to master.")
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312 # result['errors'] = _get_errors(ex)
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313 # if self.ctx.app.debug:
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314 # logger.exception(ex)
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315 # finally:
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316 # self.app.env.abort_source_use = False
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317 # return result
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318 #
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319 #
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320 #class BakeJobHandler(JobHandler):
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321 # def __init__(self, ctx):
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322 # super(BakeJobHandler, self).__init__(ctx)
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323 # self.page_baker = PageBaker(ctx.app, ctx.out_dir, ctx.force)
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324 #
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325 # def shutdown(self):
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326 # self.page_baker.shutdown()
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327 #
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328 # def handleJob(self, job):
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329 # # Actually bake the page and all its sub-pages to the output folder.
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330 # fac = load_factory(self.app, job['factory_info'])
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331 # self.app.env.addManifestEntry('BakeJobs', fac.ref_spec)
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332 #
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333 # route_index = job['route_index']
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334 # route_metadata = job['route_metadata']
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335 # route = self.app.routes[route_index]
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336 #
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337 # gen_name = job['generator_name']
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338 # gen_key = job['generator_record_key']
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339 # dirty_source_names = job['dirty_source_names']
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340 #
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341 # page = fac.buildPage()
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342 # qp = QualifiedPage(page, route, route_metadata)
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343 #
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344 # result = {
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345 # 'path': fac.path,
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346 # 'generator_name': gen_name,
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347 # 'generator_record_key': gen_key,
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348 # 'sub_entries': None,
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349 # 'errors': None}
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350 #
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351 # if job.get('needs_config', False):
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352 # result['config'] = page.config.getAll()
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353 #
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354 # previous_entry = None
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355 # if self.ctx.previous_record_index is not None:
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356 # key = _get_transition_key(fac.path, gen_key)
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357 # previous_entry = self.ctx.previous_record_index.get(key)
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358 #
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359 # logger.debug("Baking page: %s" % fac.ref_spec)
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360 # logger.debug("With route metadata: %s" % route_metadata)
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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361 # try:
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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362 # sub_entries = self.page_baker.bake(
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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363 # qp, previous_entry, dirty_source_names, gen_name)
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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364 # result['sub_entries'] = sub_entries
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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365 #
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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366 # except Exception as ex:
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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367 # logger.debug("Got baking error. Sending it to master.")
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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368 # result['errors'] = _get_errors(ex)
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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369 # if self.ctx.app.debug:
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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370 # logger.exception(ex)
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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371 #
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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372 # return result
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
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373 #