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annotate piecrust/commands/builtin/baking.py @ 215:a47580a0955b

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bake: Better error handling for the processing pipeline. Pipeline jobs now keep track of whether they've seen any errors. This is aggregated into an overall "success" flag for the processing record. Also, jobs keep going as long as there's no critical (i.e. internal) failure happening. Errors raised by processors are also better tracked: the actual processor that failed, along with the input file, are tracks in the processing record. The `bake` command returns a failure exit code if processing saw any error.
author Ludovic Chabant <ludovic@chabant.com>
date Sat, 31 Jan 2015 17:08:02 -0800
parents e725af1d48fb
children 1f4c3dae1fe8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 import time
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2 import os.path
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3 import logging
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4 import hashlib
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5 import fnmatch
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6 import datetime
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7 from piecrust.baking.baker import Baker
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8 from piecrust.baking.records import BakeRecord
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9 from piecrust.chefutil import format_timed
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10 from piecrust.commands.base import ChefCommand
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11 from piecrust.processing.base import ProcessorPipeline
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12 from piecrust.processing.records import (
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13 ProcessorPipelineRecord, FLAG_OVERRIDEN)
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15
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16 logger = logging.getLogger(__name__)
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17
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18
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19 class BakeCommand(ChefCommand):
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20 def __init__(self):
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21 super(BakeCommand, self).__init__()
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22 self.name = 'bake'
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23 self.description = "Bakes your website into static HTML files."
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24
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25 def setupParser(self, parser, app):
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26 parser.add_argument(
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27 '-o', '--output',
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28 help="The directory to put all the baked HTML files into "
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29 "(defaults to `_counter`)")
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30 parser.add_argument(
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31 '-f', '--force',
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32 help="Force re-baking the entire website.",
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33 action='store_true')
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34 parser.add_argument(
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35 '--no-assets',
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36 help="Don't process assets (only pages).",
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37 action='store_true')
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38
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39 def run(self, ctx):
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40 out_dir = (ctx.args.output or
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41 os.path.join(ctx.app.root_dir, '_counter'))
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42
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43 success = True
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44 start_time = time.clock()
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45 try:
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46 # Bake the site sources.
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47 success = success & self._bakeSources(ctx, out_dir)
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48
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49 # Bake the assets.
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50 if not ctx.args.no_assets:
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51 success = success & self._bakeAssets(ctx, out_dir)
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52
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53 # All done.
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54 logger.info('-------------------------')
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55 logger.info(format_timed(start_time, 'done baking'))
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56 return 0 if success else 1
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57 except Exception as ex:
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58 if ctx.app.debug:
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59 logger.exception(ex)
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60 else:
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61 logger.error(str(ex))
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62 return 1
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63
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64 def _bakeSources(self, ctx, out_dir):
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65 baker = Baker(
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66 ctx.app, out_dir,
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67 force=ctx.args.force)
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68 baker.bake()
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69 return True
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70
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71 def _bakeAssets(self, ctx, out_dir):
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72 proc = ProcessorPipeline(
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73 ctx.app, out_dir,
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74 force=ctx.args.force)
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75 record = proc.run()
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76 return record.success
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78
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79 class ShowRecordCommand(ChefCommand):
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80 def __init__(self):
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81 super(ShowRecordCommand, self).__init__()
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82 self.name = 'showrecord'
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83 self.description = ("Shows the bake record for a given output "
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84 "directory.")
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85
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86 def setupParser(self, parser, app):
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87 parser.add_argument(
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88 '-o', '--output',
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89 help="The output directory for which to show the bake record "
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90 "(defaults to `_counter`)",
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91 nargs='?')
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92 parser.add_argument(
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93 '-p', '--path',
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94 help="A pattern that will be used to filter the relative path "
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95 "of entries to show.")
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96
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97 def run(self, ctx):
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98 out_dir = ctx.args.output or os.path.join(ctx.app.root_dir, '_counter')
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99 record_name = (hashlib.md5(out_dir.encode('utf8')).hexdigest() +
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100 '.record')
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101
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102 pattern = None
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103 if ctx.args.path:
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104 pattern = '*%s*' % ctx.args.path.strip('*')
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105
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106 record_cache = ctx.app.cache.getCache('baker')
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107 if not record_cache.has(record_name):
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108 raise Exception("No record has been created for this output path. "
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109 "Did you bake there yet?")
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110
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111 record = BakeRecord.load(record_cache.getCachePath(record_name))
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112 logging.info("Bake record for: %s" % record.out_dir)
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113 logging.info("Last baked: %s" %
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114 datetime.datetime.fromtimestamp(record.bake_time))
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115 logging.info("Entries:")
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116 for entry in record.entries:
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117 if pattern:
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118 if not fnmatch.fnmatch(entry.rel_path, pattern):
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119 continue
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120 logging.info(" - ")
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121 logging.info(" path: %s" % entry.rel_path)
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122 logging.info(" spec: %s:%s" % (entry.source_name,
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123 entry.rel_path))
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124 logging.info(" taxonomy: %s:%s" % (entry.taxonomy_name,
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125 entry.taxonomy_term))
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126 logging.info(" config: %s" % entry.config)
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127 logging.info(" out URLs: %s" % entry.out_uris)
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128 logging.info(" out paths: %s" % [os.path.relpath(p, out_dir)
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129 for p in entry.out_paths])
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130 logging.info(" used srcs: %s" % entry.used_source_names)
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131 if entry.errors:
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132 logging.error(" errors: %s" % entry.errors)
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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133
194
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134 record_cache = ctx.app.cache.getCache('proc')
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135 if not record_cache.has(record_name):
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136 return
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137
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138 record = ProcessorPipelineRecord.load(
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139 record_cache.getCachePath(record_name))
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140 logging.info("")
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141 logging.info("Processing record for: %s" % record.out_dir)
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142 logging.info("Last baked: %s" %
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143 datetime.datetime.fromtimestamp(record.process_time))
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144 logging.info("Entries:")
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145 for entry in record.entries:
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146 if pattern:
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147 if not fnmatch.fnmatch(entry.rel_input, pattern):
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148 continue
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149 flags = ''
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150 if entry.flags & FLAG_OVERRIDEN:
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151 flags += 'overriden'
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152 logger.info(" - ")
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153 logger.info(" path: %s" % entry.rel_input)
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154 logger.info(" out paths: %s" % entry.rel_outputs)
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155 logger.info(" flags: %s" % flags)
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156 logger.info(" proc tree: %s" % format_proc_tree(
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157 entry.proc_tree, 14*' '))
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158 if entry.errors:
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159 logger.error(" errors: %s" % entry.errors)
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160
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161
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162 def format_proc_tree(tree, margin='', level=0):
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163 name, children = tree
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164 res = '%s%s%s' % (margin if level > 0 else '', level * ' ', name)
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165 if children:
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166 for c in children:
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167 res += format_proc_tree(c, margin, level + 1)
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168 return res
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169