Mercurial > piecrust2

annotate piecrust/data/debug.py @ 550:6f216c1ab6b1

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bake: Add a flag to know which record entries got collapsed from last run. This makes it possible to find entries for things that were actually baked during the current run, as opposed to skipped because they were "clean".
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 04 Aug 2015 21:22:30 -0700
parents 32c7c2d219d2
children 93b656f0af54
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3
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1 import re
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2 import io
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3 import html
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4 import logging
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5 import collections
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6 import collections.abc
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7 from piecrust import APP_VERSION, PIECRUST_URL
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8 from piecrust.page import FLAG_RAW_CACHE_VALID
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10
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11 logger = logging.getLogger(__name__)
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12
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13
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14 css_id_re = re.compile(r'[^\w\d\-]+')
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16
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17 # CSS for the debug window.
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18 CSS_DEBUGWINDOW = """
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19 text-align: left;
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20 font-family: serif;
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21 font-style: normal;
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22 font-weight: normal;
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23 position: fixed;
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24 width: 50%;
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25 bottom: 0;
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26 right: 0;
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27 overflow: auto;
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28 max-height: 50%;
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29 box-shadow: 0 0 10px #633;
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30 """
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31
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32 CSS_PIPELINESTATUS = """
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33 background: #fff;
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34 color: #a22;
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35 """
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36
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37 CSS_DEBUGINFO = """
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38 padding: 1em;
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39 background: #a42;
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40 color: #fff;
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41 """
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42
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43 # HTML elements.
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44 CSS_P = 'margin: 0; padding: 0;'
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45 CSS_A = 'color: #fff; text-decoration: none;'
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46
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47 # Headers.
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48 CSS_BIGHEADER = 'margin: 0.5em 0; font-weight: bold;'
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49 CSS_HEADER = 'margin: 0.5em 0; font-weight: bold;'
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50
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51 # Data block elements.
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52 CSS_DATA = 'font-family: Courier, sans-serif; font-size: 0.9em;'
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53 CSS_DATABLOCK = 'margin-left: 2em;'
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54 CSS_VALUE = 'color: #fca;'
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55 CSS_DOC = 'color: #fa8; font-size: 0.9em;'
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56
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57 # 'Baked with PieCrust' text
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58 BRANDING_TEXT = 'Baked with <em><a href="%s">PieCrust</a> %s</em>.' % (
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59 PIECRUST_URL, APP_VERSION)
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60
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61
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62 def build_debug_info(page, data):
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63 """ Generates HTML debug info for the given page's data.
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64 """
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65 output = io.StringIO()
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66 try:
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67 _do_build_debug_info(page, data, output)
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68 return output.getvalue()
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69 finally:
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70 output.close()
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71
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72
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73 def _do_build_debug_info(page, data, output):
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74 app = page.app
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75
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76 print('<div id="piecrust-debug-info" style="%s">' % CSS_DEBUGWINDOW,
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77 file=output)
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78
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79 print('<div id="piecrust-debug-info-pipeline-status" style="%s">' %
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80 CSS_PIPELINESTATUS, file=output)
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81 print('</div>', file=output)
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82
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83 print('<div style="%s">' % CSS_DEBUGINFO, file=output)
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84 print('<p style="%s"><strong>PieCrust %s</strong> &mdash; ' %
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85 (CSS_P, APP_VERSION), file=output)
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86
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87 # If we have some execution info in the environment,
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88 # add more information.
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89 if page.flags & FLAG_RAW_CACHE_VALID:
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90 output.write('baked this morning')
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91 else:
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92 output.write('baked just now')
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93
96
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94 if app.cache.enabled:
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95 if app.env.was_cache_cleaned:
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96 output.write(', from a brand new cache')
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97 else:
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98 output.write(', from a valid cache')
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99 else:
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100 output.write(', with no cache')
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101
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102 output.write(', ')
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103 if app.env.start_time != 0:
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104 output.write('in __PIECRUST_TIMING_INFORMATION__')
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105 else:
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106 output.write('no timing information available')
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107
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108 print('</p>', file=output)
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109 print('</div>', file=output)
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110
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111 if data:
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112 print('<div style="%s padding-top: 0;">' % CSS_DEBUGINFO, file=output)
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113 print(('<p style="%s cursor: pointer;" onclick="var l = '
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114 'document.getElementById(\'piecrust-debug-details\'); '
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115 'if (l.style.display == \'none\') l.style.display = '
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116 '\'block\'; else l.style.display = \'none\';">' % CSS_P), file=output)
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117 print(('<span style="%s">Template engine data</span> '
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118 '&mdash; click to toggle</a>.</p>' % CSS_BIGHEADER), file=output)
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119
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120 print('<div id="piecrust-debug-details" style="display: none;">', file=output)
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121 print(('<p style="%s">The following key/value pairs are '
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122 'available in the layout\'s markup, and most are '
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123 'available in the page\'s markup.</p>' % CSS_DOC), file=output)
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124
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125 filtered_data = dict(data)
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126 for k in list(filtered_data.keys()):
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127 if k.startswith('__'):
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128 del filtered_data[k]
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129
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130 renderer = DebugDataRenderer(output)
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131 renderer.external_docs['data-site'] = (
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132 "This section comes from the site configuration file.")
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133 renderer.external_docs['data-page'] = (
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134 "This section comes from the page's configuration header.")
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135 renderer.renderData(filtered_data)
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136
5
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137 print('</div>', file=output)
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138 print('</div>', file=output)
3
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139
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140 print('</div>', file=output)
3
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141
219
d7a548ebcd58 serve: Add server sent events for showing pipeline errors in the debug window.
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142 print('<script src="/__piecrust_static/piecrust-debug-info.js"></script>',
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diff changeset
143 file=output)
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144
3
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145
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146 class DebugDataRenderer(object):
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147 MAX_VALUE_LENGTH = 150
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148
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149 def __init__(self, output):
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150 self.indent = 0
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151 self.output = output
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152 self.external_docs = {}
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153
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154 def renderData(self, data):
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155 if not isinstance(data, dict):
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156 raise Exception("Expected top level data to be a dict.")
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157 self._writeLine('<div style="%s">' % CSS_DATA)
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158 self._renderDict(data, 'data')
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159 self._writeLine('</div>')
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160
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161 def _renderValue(self, data, path):
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162 if data is None:
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163 self._write('&lt;null&gt;')
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164 return
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165
440
32c7c2d219d2 performance: Refactor how data is managed to reduce copying.
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166 if isinstance(data, (dict, collections.abc.Mapping)):
3
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167 self._renderCollapsableValueStart(path)
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168 with IndentScope(self):
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169 self._renderDict(data, path)
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170 self._renderCollapsableValueEnd()
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171 return
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172
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173 if isinstance(data, list):
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174 self._renderCollapsableValueStart(path)
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175 with IndentScope(self):
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176 self._renderList(data, path)
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177 self._renderCollapsableValueEnd()
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178 return
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179
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180 data_type = type(data)
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181 if data_type is bool:
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182 self._write('<span style="%s">%s</span>' % (CSS_VALUE,
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183 'true' if bool(data) else 'false'))
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184 return
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185
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186 if data_type is int:
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187 self._write('<span style="%s">%d</span>' % (CSS_VALUE, data))
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188 return
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189
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190 if data_type is float:
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191 self._write('<span style="%s">%4.2f</span>' % (CSS_VALUE, data))
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192 return
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193
7
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
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194 if data_type is str:
3
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195 if len(data) > DebugDataRenderer.MAX_VALUE_LENGTH:
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196 data = data[:DebugDataRenderer.MAX_VALUE_LENGTH - 5]
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197 data += '[...]'
14
395eb38f2dfb Properly escape HTML characters in the debug info, add more options.
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198 data = html.escape(data)
3
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199 self._write('<span style="%s">%s</span>' % (CSS_VALUE, data))
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200 return
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201
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202 self._renderCollapsableValueStart(path)
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203 with IndentScope(self):
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204 self._renderObject(data, path)
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205 self._renderCollapsableValueEnd()
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206
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207 def _renderList(self, data, path):
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208 self._writeLine('<div style="%s">' % CSS_DATABLOCK)
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209 self._renderDoc(data, path)
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210 self._renderAttributes(data, path)
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211 rendered_count = self._renderIterable(data, path, lambda d: enumerate(d))
407
bd56d9acd6ef debug: Add support for more attributes for the debug info.
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parents: 219
diff changeset
212 if (rendered_count == 0 and
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diff changeset
213 not hasattr(data.__class__, 'debug_render_not_empty')):
3
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214 self._writeLine('<p style="%s %s">(empty array)</p>' % (CSS_P, CSS_DOC))
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215 self._writeLine('</div>')
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216
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217 def _renderDict(self, data, path):
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218 self._writeLine('<div style="%s">' % CSS_DATABLOCK)
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219 self._renderDoc(data, path)
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220 self._renderAttributes(data, path)
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221 rendered_count = self._renderIterable(data, path,
5
474c9882decf Upgrade to Python 3.
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parents: 3
diff changeset
222 lambda d: sorted(iter(d.items()), key=lambda i: i[0]))
407
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diff changeset
223 if (rendered_count == 0 and
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diff changeset
224 not hasattr(data.__class__, 'debug_render_not_empty')):
3
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225 self._writeLine('<p style="%s %s">(empty dictionary)</p>' % (CSS_P, CSS_DOC))
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226 self._writeLine('</div>')
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227
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228 def _renderObject(self, data, path):
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229 if hasattr(data.__class__, 'debug_render_func'):
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230 # This object wants to be rendered as a simple string...
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231 render_func_name = data.__class__.debug_render_func
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232 render_func = getattr(data, render_func_name)
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233 value = render_func()
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234 self._renderValue(value, path)
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235 return
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236
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237 self._writeLine('<div style="%s">' % CSS_DATABLOCK)
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238 self._renderDoc(data, path)
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239 rendered_attrs = self._renderAttributes(data, path)
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240
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241 if (hasattr(data, '__iter__') and
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242 hasattr(data.__class__, 'debug_render_items') and
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243 data.__class__.debug_render_items):
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244 rendered_count = self._renderIterable(data, path,
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245 lambda d: enumerate(d))
407
bd56d9acd6ef debug: Add support for more attributes for the debug info.
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parents: 219
diff changeset
246 if (rendered_count == 0 and
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diff changeset
247 not hasattr(data.__class__, 'debug_render_not_empty')):
3
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248 self._writeLine('<p style="%s %s">(empty)</p>' % (CSS_P, CSS_DOC))
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249
407
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diff changeset
250 elif (rendered_attrs == 0 and
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diff changeset
251 not hasattr(data.__class__, 'debug_render_not_empty')):
3
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252 self._writeLine('<p style="%s %s">(empty)</p>' % (CSS_P, CSS_DOC))
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253
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254 self._writeLine('</div>')
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255
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256 def _renderIterable(self, data, path, iter_func):
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257 rendered_count = 0
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258 with IndentScope(self):
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259 for i, item in iter_func(data):
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260 self._writeStart('<div>%s' % i)
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261 if item is not None:
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262 self._write(' : ')
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diff changeset
263 self._renderValue(item, self._makePath(path, i))
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264 self._writeEnd('</div>')
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diff changeset
265 rendered_count += 1
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266 return rendered_count
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267
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268 def _renderDoc(self, data, path):
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269 if hasattr(data.__class__, 'debug_render_doc'):
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270 self._writeLine('<span style="%s">&ndash; %s</span>' %
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271 (CSS_DOC, data.__class__.debug_render_doc))
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272
407
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diff changeset
273 if hasattr(data.__class__, 'debug_render_doc_dynamic'):
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diff changeset
274 drdd = data.__class__.debug_render_doc_dynamic
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275 for ng in drdd:
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diff changeset
276 doc = getattr(data, ng)
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277 self._writeLine('<span style="%s">&ndash; %s</span>' %
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diff changeset
278 (CSS_DOC, doc()))
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diff changeset
279
3
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280 doc = self.external_docs.get(path)
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281 if doc is not None:
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282 self._writeLine('<span style="%s">&ndash; %s</span>' %
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283 (CSS_DOC, doc))
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284
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285 def _renderAttributes(self, data, path):
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286 if not hasattr(data.__class__, 'debug_render'):
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287 return 0
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288
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289 attr_names = list(data.__class__.debug_render)
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290 if hasattr(data.__class__, 'debug_render_dynamic'):
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291 drd = data.__class__.debug_render_dynamic
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292 for ng in drd:
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293 name_gen = getattr(data, ng)
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294 attr_names += name_gen()
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295
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296 invoke_attrs = []
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297 if hasattr(data.__class__, 'debug_render_invoke'):
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298 invoke_attrs = list(data.__class__.debug_render_invoke)
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299 if hasattr(data.__class__, 'debug_render_invoke_dynamic'):
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300 drid = data.__class__.debug_render_invoke_dynamic
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301 for ng in drid:
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302 name_gen = getattr(data, ng)
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303 invoke_attrs += name_gen()
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304
14
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305 redirects = {}
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306 if hasattr(data.__class__, 'debug_render_redirect'):
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307 redirects = data.__class__.debug_render_redirect
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308
3
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309 rendered_count = 0
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310 for name in attr_names:
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311 value = None
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312 render_name = name
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313 should_call = name in invoke_attrs
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diff changeset
314
14
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diff changeset
315 if name in redirects:
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diff changeset
316 name = redirects[name]
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diff changeset
317
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diff changeset
318 query_instance = False
3
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319 try:
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320 attr = getattr(data.__class__, name)
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321 except AttributeError:
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322 # This could be an attribute on the instance itself, or some
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323 # dynamic attribute.
14
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diff changeset
324 query_instance = True
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diff changeset
325
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diff changeset
326 if query_instance:
3
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327 attr = getattr(data, name)
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328
5
474c9882decf Upgrade to Python 3.
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diff changeset
329 if isinstance(attr, collections.Callable):
3
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330 attr_func = getattr(data, name)
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331 argcount = attr_func.__code__.co_argcount
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332 var_names = attr_func.__code__.co_varnames
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diff changeset
333 if argcount == 1 and should_call:
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334 render_name += '()'
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335 value = attr_func()
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diff changeset
336 else:
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diff changeset
337 if should_call:
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diff changeset
338 logger.warning("Method '%s' should be invoked for "
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diff changeset
339 "rendering, but it has %s arguments." %
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340 (name, argcount))
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341 should_call = False
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342 render_name += '(%s)' % ','.join(var_names[1:])
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diff changeset
343 elif should_call:
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344 value = getattr(data, name)
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345
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346 self._writeLine('<div>%s' % render_name)
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diff changeset
347 with IndentScope(self):
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348 if should_call:
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349 self._write(' : ')
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diff changeset
350 self._renderValue(value, self._makePath(path, name))
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351 self._writeLine('</div>')
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diff changeset
352 rendered_count += 1
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353
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354 return rendered_count
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diff changeset
355
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diff changeset
356 def _renderCollapsableValueStart(self, path):
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357 self._writeLine('<span style="cursor: pointer;" onclick="var l = '
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
358 'document.getElementById(\'piecrust-debug-data-%s\'); '
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diff changeset
359 'if (l.style.display == \'none\') {'
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diff changeset
360 ' l.style.display = \'block\';'
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diff changeset
361 ' this.innerHTML = \'[-]\';'
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diff changeset
362 '} else {'
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diff changeset
363 ' l.style.display = \'none\';'
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diff changeset
364 ' this.innerHTML = \'[+]\';'
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diff changeset
365 '}">'
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366 '[+]'
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diff changeset
367 '</span>' %
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diff changeset
368 path)
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369 self._writeLine('<div style="display: none"'
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diff changeset
370 'id="piecrust-debug-data-%s">' % path)
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diff changeset
371
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diff changeset
372 def _renderCollapsableValueEnd(self):
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373 self._writeLine('</div>')
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374
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375 def _makePath(self, parent_path, key):
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376 return '%s-%s' % (parent_path, css_id_re.sub('-', str(key)))
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diff changeset
377
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diff changeset
378 def _writeLine(self, msg):
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diff changeset
379 self.output.write(self.indent * ' ')
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diff changeset
380 self.output.write(msg)
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diff changeset
381 self.output.write('\n')
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diff changeset
382
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diff changeset
383 def _writeStart(self, msg=None):
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diff changeset
384 self.output.write(self.indent * ' ')
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diff changeset
385 if msg is not None:
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diff changeset
386 self.output.write(msg)
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diff changeset
387
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diff changeset
388 def _write(self, msg):
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diff changeset
389 self.output.write(msg)
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diff changeset
390
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diff changeset
391 def _writeEnd(self, msg=None):
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diff changeset
392 if msg is not None:
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diff changeset
393 self.output.write(msg)
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diff changeset
394 self.output.write('\n')
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parents:
diff changeset
395
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parents:
diff changeset
396
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Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
397 class IndentScope(object):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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398 def __init__(self, target):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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399 self.target = target
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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400
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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401 def __enter__(self):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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402 self.target.indent += 1
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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403 return self
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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404
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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405 def __exit__(self, exc_type, exc_val, exc_tb):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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406 self.target.indent -= 1
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
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407