Mercurial > piecrust2

annotate piecrust/processing/base.py @ 562:fd8bd08d1fa8

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docs: Add reference entry about the `site/slugify_mode` setting.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 14 Aug 2015 22:55:36 -0700
parents c4b3a7fd2f87
children 4850f8c21b6e
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1 import shutil
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2 import os.path
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3 import logging
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4
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5
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6 logger = logging.getLogger(__name__)
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7
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8
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9 PRIORITY_FIRST = -1
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10 PRIORITY_NORMAL = 0
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11 PRIORITY_LAST = 1
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12
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13
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14 class PipelineContext(object):
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15 def __init__(self, worker_id, app, out_dir, tmp_dir, force=None):
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16 self.worker_id = worker_id
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17 self.app = app
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18 self.out_dir = out_dir
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19 self.tmp_dir = tmp_dir
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20 self.force = force
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21 self.record = None
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22 self._additional_ignore_patterns = []
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23
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24 @property
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25 def is_first_worker(self):
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26 return self.worker_id == 0
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27
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28 @property
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29 def is_pipeline_process(self):
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30 return self.worker_id < 0
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31
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32 def addIgnorePatterns(self, patterns):
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33 self._additional_ignore_patterns += patterns
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35
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36 class Processor(object):
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37 PROCESSOR_NAME = None
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38
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39 def __init__(self):
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40 self.priority = PRIORITY_NORMAL
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41 self.is_bypassing_structured_processing = False
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42 self.is_delegating_dependency_check = True
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43
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44 def initialize(self, app):
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45 self.app = app
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46
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47 def onPipelineStart(self, ctx):
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48 pass
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50 def onPipelineEnd(self, ctx):
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51 pass
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53 def matches(self, path):
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54 return False
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55
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56 def getDependencies(self, path):
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57 return None
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58
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59 def getOutputFilenames(self, filename):
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60 return None
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61
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62 def process(self, path, out_dir):
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63 pass
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65
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66 class CopyFileProcessor(Processor):
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67 PROCESSOR_NAME = 'copy'
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68
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69 def __init__(self):
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70 super(CopyFileProcessor, self).__init__()
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71 self.priority = PRIORITY_LAST
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72
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73 def matches(self, path):
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74 return True
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75
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76 def getOutputFilenames(self, filename):
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77 return [filename]
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78
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79 def process(self, path, out_dir):
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80 out_path = os.path.join(out_dir, os.path.basename(path))
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81 logger.debug("Copying: %s -> %s" % (path, out_path))
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82 shutil.copyfile(path, out_path)
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83 return True
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84
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85
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86 class SimpleFileProcessor(Processor):
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87 def __init__(self, extensions=None):
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88 super(SimpleFileProcessor, self).__init__()
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89 self.extensions = extensions or {}
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91 def matches(self, path):
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92 for ext in self.extensions:
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93 if path.endswith('.' + ext):
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94 return True
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95 return False
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96
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97 def getOutputFilenames(self, filename):
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98 basename, ext = os.path.splitext(filename)
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99 ext = ext.lstrip('.')
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100 out_ext = self.extensions[ext]
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101 return ['%s.%s' % (basename, out_ext)]
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102
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103 def process(self, path, out_dir):
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104 _, in_name = os.path.split(path)
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105 out_name = self.getOutputFilenames(in_name)[0]
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106 out_path = os.path.join(out_dir, out_name)
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107 return self._doProcess(path, out_path)
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108
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109 def _doProcess(self, in_path, out_path):
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110 raise NotImplementedError()
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111
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113 class ExternalProcessException(Exception):
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114 def __init__(self, stderr_data):
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115 self.stderr_data = stderr_data
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116
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117 def __str__(self):
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118 return self.stderr_data
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119
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