ldcheck.py

Sat, 25 May 2019 09:41:33 +0200

author
Teemu Piippo <teemu@hecknology.net>
date
Sat, 25 May 2019 09:41:33 +0200
changeset 47
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parent 38
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child 54
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permissions
-rwxr-xr-x

added work on header check

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1 #!/usr/bin/env python3
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2 from sys import version_info
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3 if version_info < (3, 4):
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4 raise RuntimeError('Python 3.4 or newer required')
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5
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6 from parse import parse_ldraw_code
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7 from colours import load_colours
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8 from geometry import *
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9 from pathlib import Path
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10 import linetypes
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11 import header
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12
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13 from os.path import realpath
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14 script_directory = Path(realpath(__file__)).parent
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15
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16 def load_config(filename):
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17 from configobj import ConfigObj
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18 from copy import deepcopy
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19 config = ConfigObj(filename, encoding = 'UTF8')
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20 read_config = deepcopy(config)
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21 if 'libraries' not in config:
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22 config['libraries'] = ['/path/to/ldraw']
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23 if config != read_config:
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24 config.write()
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25 check_library_paths(config)
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26 return config
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27
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28 def read_ldraw(file, *, name = '', config):
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29 model_body = [
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30 parse_ldraw_code(line)
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31 for line in file
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32 ]
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33 headerparser = header.HeaderParser()
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34 try:
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35 header_parse_result = headerparser.parse(model_body)
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36 header_object = header_parse_result['header']
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37 end = header_parse_result['end-index']
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38 except header.HeaderError as error:
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39 header_object = header.BadHeader(error.index, error.reason)
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40 end = 0
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41 model = Model(
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42 header = header_object,
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43 body = model_body,
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44 header_size = end)
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45 model.name = name
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46 return model
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47
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48 def library_paths(config):
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49 for library_path_string in config['libraries']:
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50 yield Path(library_path_string).expanduser()
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51
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52 def check_library_paths(config):
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53 from sys import exit
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54 problems = False
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55 have_paths = False
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56 for library_path in library_paths(config):
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57 have_paths = True
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58 if not library_path.exists():
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59 problems = True
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60 print(str.format(
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61 'Library path {} does not exist',
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62 library_path,
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63 ))
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64 elif not library_path.exists():
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65 problems = True
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66 print(str.format(
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67 'Library path {} is not a directory',
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68 library_path,
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69 ))
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70 if not have_paths:
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71 print('No LDraw path specified')
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72 problems = True
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73 if problems:
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74 print('Please fix ldcheck.cfg')
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75 exit(1)
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76
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77 def find_ldconfig_ldr_paths(config):
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78 for library_path in library_paths(config):
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79 yield from [
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80 library_path / path
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81 for path in ['LDConfig.ldr', 'ldconfig.ldr']
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82 if (library_path / path).is_file()
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83 ]
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84
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85 class Model:
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86 def __init__(self, header, body, *, header_size = 0):
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87 self.header = header
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88 self.body = body
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89 self.header_size = header_size
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90 def filter_by_type(self, type):
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91 yield from [
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92 element
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93 for element in self.body
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94 if isinstance(element, type)
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95 ]
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96 @property
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97 def subfile_references(self):
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98 yield from self.filter_by_type(linetypes.SubfileReference)
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99 @property
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100 def line_segments(self):
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101 yield from self.filter_by_type(linetypes.LineSegment)
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102 @property
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103 def triangles(self):
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104 yield from self.filter_by_type(linetypes.Triangle)
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105 @property
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106 def quadrilaterals(self):
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107 yield from self.filter_by_type(linetypes.Quadrilateral)
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108 @property
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109 def has_header(self):
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110 return self.header and not isinstance(self.header, header.BadHeader)
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111
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112 import argparse
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113 class ListTestSuiteAction(argparse.Action):
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114 def __init__(self, option_strings, dest, nargs = None, **kwargs):
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115 super().__init__(option_strings, dest, nargs = 0, **kwargs)
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116 def __call__(self, *args, **kwargs):
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117 from testsuite import load_tests
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118 from sys import exit
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119 from re import sub
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120 test_suite = load_tests()
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121 for test_name in sorted(test_suite['tests'].keys()):
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122 test_function = test_suite['tests'][test_name]
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123 help = sub(r'\s+', ' ', test_function.__doc__ or '').strip()
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124 print(test_name + ': ' + help)
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125 exit(0)
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126
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127 if __name__ == '__main__':
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128 from sys import argv
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129 parser = argparse.ArgumentParser()
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130 parser.add_argument('filename')
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131 parser.add_argument('--list',
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132 action = ListTestSuiteAction,
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133 help = 'Lists all possible checks and exit',
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134 )
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135 parser.add_argument('--dump-structure', action = 'store_true')
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136 parser.add_argument('--rebuild', action = 'store_true')
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137 args = parser.parse_args()
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138 config = load_config('ldcheck.cfg')
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139 for ldconfig_ldr_path in find_ldconfig_ldr_paths(config):
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140 with ldconfig_ldr_path.open() as ldconfig_ldr:
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141 load_colours(ldconfig_ldr)
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142 with open(args.filename) as file:
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143 from os.path import basename
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144 model = read_ldraw(
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145 file,
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146 name = basename(args.filename),
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147 config = config,
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148 )
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149 if args.dump_structure:
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150 print('header: ' + type(model.header).__name__)
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151 for key in sorted(dir(model.header)):
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152 if not key.startswith('__'):
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153 print('\t' + key + ': ' + repr(getattr(model.header, key)))
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154 for entry in model.body:
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155 print(entry)
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156 elif args.rebuild:
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157 for entry in model.body:
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158 print(entry.textual_representation(), end = '\r\n')
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159 else:
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160 from testsuite import load_tests, check_model, format_report
66c9591b733d added proper handling of syntax errors
Teemu Piippo <teemu@hecknology.net>
parents: 36
diff changeset
161 test_suite = load_tests()
66c9591b733d added proper handling of syntax errors
Teemu Piippo <teemu@hecknology.net>
parents: 36
diff changeset
162 report = check_model(model, test_suite)
66c9591b733d added proper handling of syntax errors
Teemu Piippo <teemu@hecknology.net>
parents: 36
diff changeset
163 print(format_report(report, model, test_suite))

mercurial