Mercurial > piecrust2

annotate piecrust/processing/tree.py @ 544:9a00e694b42c

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cm: Changelog generator script.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 31 Jul 2015 23:35:07 -0700
parents c4b3a7fd2f87
children 7147b06670fd
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1 import os
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2 import time
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3 import os.path
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4 import logging
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5 from piecrust.chefutil import format_timed
3
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6
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7
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8 logger = logging.getLogger(__name__)
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9
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10
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11 STATE_UNKNOWN = 0
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12 STATE_DIRTY = 1
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13 STATE_CLEAN = 2
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14
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15
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16 FORCE_BUILD = object()
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17
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18
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19 class ProcessingTreeError(Exception):
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20 pass
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21
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22
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23 class ProcessorNotFoundError(ProcessingTreeError):
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24 pass
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25
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26
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27 class ProcessorError(ProcessingTreeError):
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28 def __init__(self, proc_name, in_path, *args):
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29 super(ProcessorError, self).__init__(*args)
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30 self.proc_name = proc_name
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31 self.in_path = in_path
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32
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33 def __str__(self):
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34 return "Processor %s failed on: %s" % (self.proc_name, self.in_path)
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35
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36
3
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37 class ProcessingTreeNode(object):
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38 def __init__(self, path, available_procs, level=0):
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39 self.path = path
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40 self.available_procs = available_procs
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41 self.outputs = []
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42 self.level = level
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43 self.state = STATE_UNKNOWN
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44 self._processor = None
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45
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46 def getProcessor(self):
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47 if self._processor is None:
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48 for p in self.available_procs:
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49 if p.matches(self.path):
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50 self._processor = p
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51 self.available_procs.remove(p)
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52 break
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53 else:
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54 raise ProcessorNotFoundError()
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55 return self._processor
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56
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57 def setState(self, state, recursive=True):
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58 self.state = state
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59 if recursive:
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60 for o in self.outputs:
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61 o.setState(state, True)
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62
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63 @property
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64 def is_leaf(self):
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65 return len(self.outputs) == 0
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66
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67 def getLeaves(self):
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68 if self.is_leaf:
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69 return [self]
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70 leaves = []
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71 for o in self.outputs:
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72 for l in o.getLeaves():
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73 leaves.append(l)
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74 return leaves
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75
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76
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77 class ProcessingTreeBuilder(object):
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78 def __init__(self, processors):
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79 self.processors = processors
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80
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81 def build(self, path):
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82 tree_root = ProcessingTreeNode(path, list(self.processors))
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83
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84 loop_guard = 100
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85 walk_stack = [tree_root]
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86 while len(walk_stack) > 0:
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87 loop_guard -= 1
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88 if loop_guard <= 0:
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89 raise ProcessingTreeError("Infinite loop detected!")
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90
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91 cur_node = walk_stack.pop()
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92 proc = cur_node.getProcessor()
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93
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94 # If the root tree node (and only that one) wants to bypass this
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95 # whole tree business, so be it.
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96 if proc.is_bypassing_structured_processing:
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97 if cur_node != tree_root:
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98 raise ProcessingTreeError("Only root processors can "
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99 "bypass structured processing.")
3
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100 break
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101
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102 # Get the destination directory and output files.
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103 rel_dir, basename = os.path.split(cur_node.path)
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104 out_names = proc.getOutputFilenames(basename)
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105 if out_names is None:
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106 continue
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107
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108 for n in out_names:
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109 out_node = ProcessingTreeNode(
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110 os.path.join(rel_dir, n),
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111 list(cur_node.available_procs),
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112 cur_node.level + 1)
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113 cur_node.outputs.append(out_node)
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114
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115 if proc.PROCESSOR_NAME != 'copy':
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116 walk_stack.append(out_node)
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117
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118 return tree_root
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119
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120
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121 class ProcessingTreeRunner(object):
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122 def __init__(self, base_dir, tmp_dir, out_dir):
3
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123 self.base_dir = base_dir
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124 self.tmp_dir = tmp_dir
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125 self.out_dir = out_dir
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126
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127 def processSubTree(self, tree_root):
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128 did_process = False
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129 walk_stack = [tree_root]
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130 while len(walk_stack) > 0:
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131 cur_node = walk_stack.pop()
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132
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133 self._computeNodeState(cur_node)
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134 if cur_node.state == STATE_DIRTY:
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135 did_process_this_node = self.processNode(cur_node)
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136 did_process |= did_process_this_node
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137
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diff changeset
138 if did_process_this_node:
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parents:
diff changeset
139 for o in cur_node.outputs:
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parents:
diff changeset
140 if not o.is_leaf:
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diff changeset
141 walk_stack.append(o)
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parents:
diff changeset
142 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
143 for o in cur_node.outputs:
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parents:
diff changeset
144 if not o.is_leaf:
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parents:
diff changeset
145 walk_stack.append(o)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
146 return did_process
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diff changeset
147
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
148 def processNode(self, node):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
149 full_path = self._getNodePath(node)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
150 proc = node.getProcessor()
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diff changeset
151 if proc.is_bypassing_structured_processing:
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parents:
diff changeset
152 try:
414
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
153 start_time = time.perf_counter()
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
154 with proc.app.env.timerScope(proc.__class__.__name__):
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
155 proc.process(full_path, self.out_dir)
117
6827dcc9d3fb Changes to the asset processing pipeline:
Ludovic Chabant <ludovic@chabant.com>
parents: 55
diff changeset
156 print_node(
6827dcc9d3fb Changes to the asset processing pipeline:
Ludovic Chabant <ludovic@chabant.com>
parents: 55
diff changeset
157 node,
6827dcc9d3fb Changes to the asset processing pipeline:
Ludovic Chabant <ludovic@chabant.com>
parents: 55
diff changeset
158 format_timed(
132
3834e2ef0cf2 Don't colour debug output.
Ludovic Chabant <ludovic@chabant.com>
parents: 120
diff changeset
159 start_time, "(bypassing structured processing)",
3834e2ef0cf2 Don't colour debug output.
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parents: 120
diff changeset
160 colored=False))
3
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diff changeset
161 return True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
162 except Exception as e:
215
a47580a0955b bake: Better error handling for the processing pipeline.
Ludovic Chabant <ludovic@chabant.com>
parents: 191
diff changeset
163 raise ProcessorError(proc.PROCESSOR_NAME, full_path) from e
3
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parents:
diff changeset
164
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
165 # All outputs of a node must go to the same directory, so we can get
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
166 # the output directory off of the first output.
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parents:
diff changeset
167 base_out_dir = self._getNodeBaseDir(node.outputs[0])
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
168 rel_out_dir = os.path.dirname(node.path)
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parents:
diff changeset
169 out_dir = os.path.join(base_out_dir, rel_out_dir)
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parents:
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170 if not os.path.isdir(out_dir):
414
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
171 try:
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parents: 215
diff changeset
172 os.makedirs(out_dir, 0o755, exist_ok=True)
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parents: 215
diff changeset
173 except OSError:
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
174 pass
3
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parents:
diff changeset
175
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parents:
diff changeset
176 try:
414
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
177 start_time = time.perf_counter()
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parents: 215
diff changeset
178 with proc.app.env.timerScope(proc.__class__.__name__):
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
179 proc_res = proc.process(full_path, out_dir)
3
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parents:
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180 if proc_res is None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
181 raise Exception("Processor '%s' didn't return a boolean "
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parents:
diff changeset
182 "result value." % proc)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
183 if proc_res:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
184 print_node(node, "-> %s" % out_dir)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
185 return True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
186 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
187 print_node(node, "-> %s [clean]" % out_dir)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
188 return False
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
189 except Exception as e:
215
a47580a0955b bake: Better error handling for the processing pipeline.
Ludovic Chabant <ludovic@chabant.com>
parents: 191
diff changeset
190 raise ProcessorError(proc.PROCESSOR_NAME, full_path) from e
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
191
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
192 def _computeNodeState(self, node):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
193 if node.state != STATE_UNKNOWN:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
194 return
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
195
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
196 proc = node.getProcessor()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
197 if (proc.is_bypassing_structured_processing or
414
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
Ludovic Chabant <ludovic@chabant.com>
parents: 215
diff changeset
198 not proc.is_delegating_dependency_check):
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
199 # This processor wants to handle things on its own...
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
200 node.setState(STATE_DIRTY, False)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
201 return
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
202
414
c4b3a7fd2f87 bake: Make pipeline processing multi-process.
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parents: 215
diff changeset
203 start_time = time.perf_counter()
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
204
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
205 # Get paths and modification times for the input path and
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
206 # all dependencies (if any).
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
207 base_dir = self._getNodeBaseDir(node)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
208 full_path = os.path.join(base_dir, node.path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
209 in_mtime = (full_path, os.path.getmtime(full_path))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
210 force_build = False
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
211 try:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
212 deps = proc.getDependencies(full_path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
213 if deps == FORCE_BUILD:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
214 force_build = True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
215 elif deps is not None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
216 for dep in deps:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
217 dep_mtime = os.path.getmtime(dep)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
218 if dep_mtime > in_mtime[1]:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
219 in_mtime = (dep, dep_mtime)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
220 except Exception as e:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
221 logger.warning("%s -- Will force-bake: %s" % (e, node.path))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
222 node.setState(STATE_DIRTY, True)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
223 return
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
224
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
225 if force_build:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
226 # Just do what the processor told us to do.
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
227 node.setState(STATE_DIRTY, True)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
228 message = "Processor requested a forced build."
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
229 print_node(node, message)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
230 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
231 # Get paths and modification times for the outputs.
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
232 message = None
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
233 for o in node.outputs:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
234 full_out_path = self._getNodePath(o)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
235 if not os.path.isfile(full_out_path):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
236 message = "Output '%s' doesn't exist." % o.path
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
237 break
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
238 o_mtime = os.path.getmtime(full_out_path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
239 if o_mtime < in_mtime[1]:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
240 message = "Input '%s' is newer than output '%s'." % (
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
241 in_mtime[0], o.path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
242 break
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
243 if message is not None:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
244 node.setState(STATE_DIRTY, True)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
245 message += " Re-processing sub-tree."
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
246 print_node(node, message)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
247 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
248 node.setState(STATE_CLEAN, False)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
249
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
250 state = "dirty" if node.state == STATE_DIRTY else "clean"
120
133845647083 Better error management and removal support in baking/processing.
Ludovic Chabant <ludovic@chabant.com>
parents: 117
diff changeset
251 logger.debug(format_timed(start_time,
133845647083 Better error management and removal support in baking/processing.
Ludovic Chabant <ludovic@chabant.com>
parents: 117
diff changeset
252 "Computed node dirtyness: %s" % state,
132
3834e2ef0cf2 Don't colour debug output.
Ludovic Chabant <ludovic@chabant.com>
parents: 120
diff changeset
253 indent_level=node.level, colored=False))
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
254
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
255 def _getNodeBaseDir(self, node):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
256 if node.level == 0:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
257 return self.base_dir
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
258 if node.is_leaf:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
259 return self.out_dir
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
260 return os.path.join(self.tmp_dir, str(node.level))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
261
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
262 def _getNodePath(self, node):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
263 base_dir = self._getNodeBaseDir(node)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
264 return os.path.join(base_dir, node.path)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
265
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
266
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
267 def print_node(node, message=None, recursive=False):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
268 indent = ' ' * node.level
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
269 try:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
270 proc_name = node.getProcessor().PROCESSOR_NAME
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
271 except ProcessorNotFoundError:
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272 proc_name = 'n/a'
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273
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274 message = message or ''
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275 logger.debug('%s%s [%s] %s' % (indent, node.path, proc_name, message))
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276
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277 if recursive:
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278 for o in node.outputs:
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279 print_node(o, None, True)
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280
191
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281
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282 def get_node_name_tree(node):
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283 try:
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284 proc_name = node.getProcessor().PROCESSOR_NAME
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285 except ProcessorNotFoundError:
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286 proc_name = 'n/a'
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287
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288 children = []
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289 for o in node.outputs:
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290 if not o.outputs:
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291 continue
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292 children.append(get_node_name_tree(o))
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293 return (proc_name, children)
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294