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annotate piecrust/baking/worker.py @ 661:2f780b191541

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internal: Fix a bug with registering taxonomy terms that are not strings. Some objects, like the blog data provider's taxnonomy entries, can render as strings, but are objects themselves. When registering them as "used terms", we need to use their string representation.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 01 Mar 2016 22:26:09 -0800
parents 27e3b3f05648
children 3ceeca7bb71c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 import time
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2 import logging
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3 from piecrust.app import PieCrust, apply_variant_and_values
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4 from piecrust.baking.records import BakeRecord, _get_transition_key
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5 from piecrust.baking.single import PageBaker, BakingError
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6 from piecrust.environment import AbortedSourceUseError
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7 from piecrust.rendering import (
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8 QualifiedPage, PageRenderingContext, render_page_segments)
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9 from piecrust.routing import create_route_metadata
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10 from piecrust.sources.base import PageFactory
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11 from piecrust.workerpool import IWorker
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12
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13
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14 logger = logging.getLogger(__name__)
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15
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16
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17 class BakeWorkerContext(object):
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18 def __init__(self, root_dir, sub_cache_dir, out_dir,
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19 previous_record_path=None,
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20 config_variant=None, config_values=None,
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21 force=False, debug=False):
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22 self.root_dir = root_dir
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23 self.sub_cache_dir = sub_cache_dir
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24 self.out_dir = out_dir
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25 self.previous_record_path = previous_record_path
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26 self.config_variant = config_variant
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27 self.config_values = config_values
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28 self.force = force
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29 self.debug = debug
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30 self.app = None
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31 self.previous_record = None
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32 self.previous_record_index = None
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33
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34
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35 class BakeWorker(IWorker):
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36 def __init__(self, ctx):
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37 self.ctx = ctx
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38 self.work_start_time = time.perf_counter()
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39
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40 def initialize(self):
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41 # Create the app local to this worker.
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42 app = PieCrust(self.ctx.root_dir, debug=self.ctx.debug)
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43 app._useSubCacheDir(self.ctx.sub_cache_dir)
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44 app.config.set('baker/is_baking', True)
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45 app.config.set('baker/worker_id', self.wid)
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46 app.env.base_asset_url_format = '%uri%'
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47 app.env.fs_cache_only_for_main_page = True
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48 app.env.registerTimer("BakeWorker_%d_Total" % self.wid)
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49 app.env.registerTimer("BakeWorkerInit")
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50 app.env.registerTimer("JobReceive")
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51 apply_variant_and_values(app, self.ctx.config_variant,
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52 self.ctx.config_values)
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53 self.ctx.app = app
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54
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55 # Load previous record
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56 if self.ctx.previous_record_path:
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57 self.ctx.previous_record = BakeRecord.load(
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58 self.ctx.previous_record_path)
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59 self.ctx.previous_record_index = {}
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60 for e in self.ctx.previous_record.entries:
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61 key = _get_transition_key(e.path, e.taxonomy_info)
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62 self.ctx.previous_record_index[key] = e
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63
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64 # Create the job handlers.
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65 job_handlers = {
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66 JOB_LOAD: LoadJobHandler(self.ctx),
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67 JOB_RENDER_FIRST: RenderFirstSubJobHandler(self.ctx),
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68 JOB_BAKE: BakeJobHandler(self.ctx)}
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69 for jt, jh in job_handlers.items():
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70 app.env.registerTimer(type(jh).__name__)
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71 self.job_handlers = job_handlers
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72
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73 app.env.stepTimerSince("BakeWorkerInit", self.work_start_time)
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74
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75 def process(self, job):
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76 handler = self.job_handlers[job['type']]
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77 with self.ctx.app.env.timerScope(type(handler).__name__):
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78 return handler.handleJob(job['job'])
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79
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80 def getReport(self):
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81 self.ctx.app.env.stepTimerSince("BakeWorker_%d_Total" % self.wid,
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82 self.work_start_time)
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83 return {
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84 'type': 'timers',
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85 'data': self.ctx.app.env._timers}
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86
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87
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88 JOB_LOAD, JOB_RENDER_FIRST, JOB_BAKE = range(0, 3)
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89
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90
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91 class JobHandler(object):
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92 def __init__(self, ctx):
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93 self.ctx = ctx
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94
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95 @property
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96 def app(self):
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97 return self.ctx.app
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98
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99 def handleJob(self, job):
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100 raise NotImplementedError()
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101
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102
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103 def _get_errors(ex):
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104 errors = []
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105 while ex is not None:
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106 errors.append(str(ex))
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107 ex = ex.__cause__
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108 return errors
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109
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110
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111 def save_factory(fac):
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112 return {
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113 'source_name': fac.source.name,
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114 'rel_path': fac.rel_path,
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115 'metadata': fac.metadata}
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116
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117
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118 def load_factory(app, info):
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119 source = app.getSource(info['source_name'])
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120 return PageFactory(source, info['rel_path'], info['metadata'])
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121
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122
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123 class LoadJobHandler(JobHandler):
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124 def handleJob(self, job):
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125 # Just make sure the page has been cached.
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126 fac = load_factory(self.app, job)
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127 logger.debug("Loading page: %s" % fac.ref_spec)
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128 result = {
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129 'source_name': fac.source.name,
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130 'path': fac.path,
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131 'config': None,
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132 'errors': None}
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133 try:
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134 page = fac.buildPage()
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135 page._load()
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136 result['config'] = page.config.getAll()
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137 except Exception as ex:
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138 logger.debug("Got loading error. Sending it to master.")
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139 result['errors'] = _get_errors(ex)
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140 if self.ctx.debug:
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141 logger.exception(ex)
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142 return result
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143
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144
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145 class RenderFirstSubJobHandler(JobHandler):
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146 def handleJob(self, job):
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147 # Render the segments for the first sub-page of this page.
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148 fac = load_factory(self.app, job)
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149
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150 # These things should be OK as they're checked upstream by the baker.
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151 route = self.app.getRoute(fac.source.name, fac.metadata,
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152 skip_taxonomies=True)
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153 assert route is not None
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154
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155 page = fac.buildPage()
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156 route_metadata = create_route_metadata(page)
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157 qp = QualifiedPage(page, route, route_metadata)
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158 ctx = PageRenderingContext(qp)
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159 self.app.env.abort_source_use = True
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160
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161 result = {
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162 'path': fac.path,
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163 'aborted': False,
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164 'errors': None}
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165 logger.debug("Preparing page: %s" % fac.ref_spec)
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166 try:
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167 render_page_segments(ctx)
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168 except AbortedSourceUseError:
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169 logger.debug("Page %s was aborted." % fac.ref_spec)
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170 result['aborted'] = True
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171 except Exception as ex:
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172 logger.debug("Got rendering error. Sending it to master.")
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173 result['errors'] = _get_errors(ex)
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174 if self.ctx.debug:
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175 logger.exception(ex)
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176 finally:
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177 self.app.env.abort_source_use = False
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178 return result
411
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179
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180
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181 class BakeJobHandler(JobHandler):
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182 def __init__(self, ctx):
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183 super(BakeJobHandler, self).__init__(ctx)
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184 self.page_baker = PageBaker(ctx.app, ctx.out_dir, ctx.force)
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185
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186 def handleJob(self, job):
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187 # Actually bake the page and all its sub-pages to the output folder.
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188 fac = load_factory(self.app, job['factory_info'])
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189
451
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190 route_metadata = job['route_metadata']
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191 tax_info = job['taxonomy_info']
411
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192 if tax_info is not None:
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193 route = self.app.getTaxonomyRoute(tax_info.taxonomy_name,
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194 tax_info.source_name)
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195 else:
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196 route = self.app.getRoute(fac.source.name, route_metadata,
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197 skip_taxonomies=True)
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198 assert route is not None
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199
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200 page = fac.buildPage()
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201 qp = QualifiedPage(page, route, route_metadata)
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202
451
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203 result = {
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204 'path': fac.path,
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205 'taxonomy_info': tax_info,
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206 'sub_entries': None,
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207 'errors': None}
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208 dirty_source_names = job['dirty_source_names']
453
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209
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210 previous_entry = None
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211 if self.ctx.previous_record_index is not None:
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212 key = _get_transition_key(fac.path, tax_info)
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213 previous_entry = self.ctx.previous_record_index.get(key)
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diff changeset
214
411
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215 logger.debug("Baking page: %s" % fac.ref_spec)
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diff changeset
216 try:
415
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diff changeset
217 sub_entries = self.page_baker.bake(
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diff changeset
218 qp, previous_entry, dirty_source_names, tax_info)
451
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diff changeset
219 result['sub_entries'] = sub_entries
411
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diff changeset
220
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diff changeset
221 except BakingError as ex:
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222 logger.debug("Got baking error. Sending it to master.")
451
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diff changeset
223 result['errors'] = _get_errors(ex)
415
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diff changeset
224 if self.ctx.debug:
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diff changeset
225 logger.exception(ex)
411
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226
447
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diff changeset
227 return result
411
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parents:
diff changeset
228