Mercurial > piecrust2

annotate piecrust/pipelines/base.py @ 854:08e02c2a2a1a

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core: Keep refactoring, this time to prepare for generator sources. - Make a few APIs simpler. - Content pipelines create their own jobs, so that generator sources can keep aborting in `getContents`, but rely on their pipeline to generate pages for baking.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 04 Jun 2017 23:34:28 -0700
parents f070a4fc033c
children 448710d84121
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rev   line source
852
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1 import os.path
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2 import logging
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3 from werkzeug.utils import cached_property
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4 from piecrust.configuration import ConfigurationError
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5
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6
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7 logger = logging.getLogger(__name__)
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8
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9
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10 class PipelineContext:
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11 """ The context for running a content pipeline.
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12 """
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13 def __init__(self, out_dir, *,
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14 worker_id=-1, force=None):
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15 self.out_dir = out_dir
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16 self.worker_id = worker_id
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17 self.force = force
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18
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19 @property
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20 def is_worker(self):
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21 """ Returns `True` if the content pipeline is running inside
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22 a worker process, and this is the first one.
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23 """
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24 return self.worker_id >= 0
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25
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26 @property
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27 def is_main_process(self):
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28 """ Returns `True` is the content pipeline is running inside
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29 the main process (and not a worker process). This is the case
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30 if there are no worker processes at all.
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31 """
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32 return self.worker_id < 0
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33
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34
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35 class PipelineJob:
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36 """ Base class for a pipline baking job.
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37 """
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38 def __init__(self, pipeline, content_item):
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39 self.source_name = pipeline.source.name
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40 self.record_name = pipeline.record_name
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41 self.content_item = content_item
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42 self.data = {}
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43
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44
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45 class PipelineJobRunContext:
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46 """ Context for running pipeline baking jobs.
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47 """
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48 def __init__(self, job, pipeline, record_histories):
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49 self.record_histories = record_histories
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50 self._job_item_spec = job.content_item.spec
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51 self._record_name = pipeline.record_name
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52
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53 @cached_property
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54 def previous_record(self):
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55 return self.record_histories.getPreviousRecord(self._record_name)
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56
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57 @cached_property
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58 def previous_entry(self):
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59 return self.previous_record.getEntry(self._job_item_spec)
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60
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61
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62 class PipelineJobResult:
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63 """ Result of running a pipeline on a content item.
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64 """
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65 def __init__(self):
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66 self.record_entry = None
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67 self.next_pass_job = None
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68
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69
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70 class PipelineMergeRecordContext:
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71 """ The context for merging a record entry for a second or higher pass
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72 into the bake record.
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73 """
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74 def __init__(self, record, job, pass_num):
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75 self.record = record
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76 self.job = job
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77 self.pass_num = pass_num
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78
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79
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80 class PipelineDeletionContext:
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81 def __init__(self, record_history):
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82 self.record_history = record_history
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83
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84
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85 class PipelineCollapseRecordContext:
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86 def __init__(self, record_history):
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87 self.record_history = record_history
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88
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89
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90 class ContentPipeline:
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91 """ A pipeline that processes content from a `ContentSource`.
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92 """
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93 PIPELINE_NAME = None
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94 RECORD_ENTRY_CLASS = None
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95 PASS_NUM = 0
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96
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97 def __init__(self, source, ctx):
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98 self.source = source
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99 self.ctx = ctx
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100 self.record_name = '%s@%s' % (source.name, self.PIPELINE_NAME)
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101
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102 app = source.app
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103 tmp_dir = app.cache_dir
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104 if not tmp_dir:
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105 import tempfile
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106 tmp_dir = os.path.join(tempfile.gettempdir(), 'piecrust')
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107 self.tmp_dir = os.path.join(tmp_dir, self.PIPELINE_NAME)
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108
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109 @property
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110 def app(self):
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111 return self.source.app
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112
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113 def initialize(self):
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114 pass
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115
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116 def createJobs(self):
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117 return [
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118 self.createJob(item)
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119 for item in self.source.getAllContents()]
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120
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121 def createJob(self, content_item):
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diff changeset
122 return PipelineJob(self, content_item)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
123
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
124 def createRecordEntry(self, job):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
125 entry_class = self.RECORD_ENTRY_CLASS
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
126 record_entry = entry_class()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
127 record_entry.item_spec = job.content_item.spec
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
128 return record_entry
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
129
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
130 def mergeRecordEntry(self, record_entry, ctx):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
131 raise NotImplementedError()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
132
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
133 def run(self, job, ctx, result):
852
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
134 raise NotImplementedError()
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
135
853
f070a4fc033c core: Continue PieCrust3 refactor, simplify pages.
Ludovic Chabant <ludovic@chabant.com>
parents: 852
diff changeset
136 def getDeletions(self, ctx):
852
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
137 pass
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
138
853
f070a4fc033c core: Continue PieCrust3 refactor, simplify pages.
Ludovic Chabant <ludovic@chabant.com>
parents: 852
diff changeset
139 def collapseRecords(self, ctx):
852
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
140 pass
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
141
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
142 def shutdown(self):
852
4850f8c21b6e core: Start of the big refactor for PieCrust 3.0.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
143 pass
854
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
144
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
145
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
146 def get_pipeline_name_for_source(source):
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
147 pname = source.config['pipeline']
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
148 if not pname:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
149 pname = source.DEFAULT_PIPELINE_NAME
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
150 if not pname:
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
151 raise ConfigurationError(
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
152 "Source '%s' doesn't specify any pipeline." % source.name)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
153 return pname
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
154
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
155
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
156 class PipelineManager:
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
157 def __init__(self, app, out_dir, record_histories, *,
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
158 worker_id=-1, force=False):
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
159 self.app = app
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
160 self.record_histories = record_histories
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
161 self.out_dir = out_dir
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
162 self.worker_id = worker_id
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
163 self.force = force
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
164
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
165 self._pipeline_classes = {}
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
166 for pclass in app.plugin_loader.getPipelines():
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
167 self._pipeline_classes[pclass.PIPELINE_NAME] = pclass
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
168
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
169 self._pipelines = {}
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Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
170
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
171 def getPipeline(self, source_name):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
172 return self._pipelines[source_name]
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
173
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
174 def getPipelines(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
175 return self._pipelines.values()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
176
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
177 def createPipeline(self, source):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
178 if source.name in self._pipelines:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
179 raise ValueError("Pipeline for source '%s' was already created." %
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
180 source.name)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
181
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
182 pname = get_pipeline_name_for_source(source)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
183 ppctx = PipelineContext(self.out_dir,
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
184 worker_id=self.worker_id, force=self.force)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
185 pp = self._pipeline_classes[pname](source, ppctx)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
186 pp.initialize()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
187
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
188 record_history = self.record_histories.getHistory(pp.record_name)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
189
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
190 info = _PipelineInfo(pp, record_history)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
191 self._pipelines[source.name] = info
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
192 return info
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
193
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
194 def buildHistoryDiffs(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
195 for ppinfo in self.getPipelines():
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
196 ppinfo.record_history.build()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
197
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
198 def deleteStaleOutputs(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
199 for ppinfo in self.getPipelines():
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
200 ctx = PipelineDeletionContext(ppinfo.record_history)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
201 to_delete = ppinfo.pipeline.getDeletions(ctx)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
202 current_record = ppinfo.record_history.current
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
203 if to_delete is not None:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
204 for path, reason in to_delete:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
205 logger.debug("Removing '%s': %s" % (path, reason))
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
206 current_record.deleted_out_paths.append(path)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
207 try:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
208 os.remove(path)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
209 except FileNotFoundError:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
210 pass
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
211 logger.info('[delete] %s' % path)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
212
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
213 def collapseRecords(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
214 for ppinfo in self.getPipelines():
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
215 ctx = PipelineCollapseRecordContext(ppinfo.record_history)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
216 ppinfo.pipeline.collapseRecords(ctx)
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
217
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
218 def shutdownPipelines(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
219 for ppinfo in self.getPipelines():
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
220 ppinfo.pipeline.shutdown()
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
221
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
222 self._pipelines = {}
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
223
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
224
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
225 class _PipelineInfo:
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
226 def __init__(self, pipeline, record_history):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
227 self.pipeline = pipeline
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
228 self.record_history = record_history
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
229 self.userdata = None
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
230
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
231 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
232 def source(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
233 return self.pipeline.source
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
234
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
235 @property
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
236 def pipeline_name(self):
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
237 return self.pipeline.PIPELINE_NAME
08e02c2a2a1a core: Keep refactoring, this time to prepare for generator sources.
Ludovic Chabant <ludovic@chabant.com>
parents: 853
diff changeset
238