ldcheck.py

Fri, 24 May 2019 14:18:28 +0200

author
Teemu Piippo <teemu@hecknology.net>
date
Fri, 24 May 2019 14:18:28 +0200
changeset 34
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parent 32
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child 36
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permissions
-rwxr-xr-x

the program now checks that all ldraw paths are reachable

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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
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12 from os.path import realpath
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13 script_directory = Path(realpath(__file__)).parent
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14
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15 def load_config(filename):
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16 from configobj import ConfigObj
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17 from copy import deepcopy
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18 config = ConfigObj(filename, encoding = 'UTF8')
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19 read_config = deepcopy(config)
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20 if 'libraries' not in config:
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21 config['libraries'] = ['/path/to/ldraw']
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22 if config != read_config:
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23 config.write()
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24 check_library_paths(config)
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25 return config
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26
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27 def read_ldraw(file, *, name = '', config):
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28 model_body = [
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29 parse_ldraw_code(line)
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30 for line in file
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31 ]
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32 model = Model(body = model_body)
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33 model.name = name
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34 return model
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35
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36 def library_paths(config):
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37 for library_path_string in config['libraries']:
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38 yield Path(library_path_string).expanduser()
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39
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40 def check_library_paths(config):
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41 from sys import exit
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42 problems = False
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43 for library_path in library_paths(config):
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44 if not library_path.exists():
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45 problems = True
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46 print(str.format(
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47 'Library path {} does not exist',
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48 library_path,
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49 ))
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50 elif not library_path.exists():
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51 problems = True
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52 print(str.format(
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53 'Library path {} is not a directory',
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54 library_path,
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55 ))
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56 if problems:
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57 print('Please fix ldcheck.cfg')
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58 exit(1)
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59
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60 def find_ldconfig_ldr_paths(config):
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61 for library_path in library_paths(config):
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62 yield from [
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63 library_path / path
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64 for path in ['LDConfig.ldr', 'ldconfig.ldr']
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65 if (library_path / path).is_file()
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66 ]
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67
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68 class Model:
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69 def __init__(self, body):
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70 self.body = body
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71 self.body_offset = 0
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72 def filter_by_type(self, type):
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73 yield from [
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74 element
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75 for element in self.body
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76 if isinstance(element, type)
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77 ]
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78 @property
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79 def subfile_references(self):
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80 yield from self.filter_by_type(linetypes.SubfileReference)
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81 @property
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82 def line_segments(self):
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83 yield from self.filter_by_type(linetypes.LineSegment)
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84 @property
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85 def triangles(self):
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86 yield from self.filter_by_type(linetypes.Triangle)
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87 @property
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88 def quadrilaterals(self):
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89 yield from self.filter_by_type(linetypes.Quadrilateral)
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90
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91 import argparse
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92 class ListTestSuiteAction(argparse.Action):
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93 def __init__(self, option_strings, dest, nargs = None, **kwargs):
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94 super().__init__(option_strings, dest, nargs = 0, **kwargs)
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95 def __call__(self, *args, **kwargs):
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96 from testsuite import load_tests
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97 from sys import exit
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98 from re import sub
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99 test_suite = load_tests()
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100 for test_name in sorted(test_suite['tests'].keys()):
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101 test_function = test_suite['tests'][test_name]
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102 help = sub(r'\s+', ' ', test_function.__doc__ or '').strip()
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103 print(test_name + ': ' + help)
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104 exit(0)
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105
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106 if __name__ == '__main__':
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107 from sys import argv
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108 parser = argparse.ArgumentParser()
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109 parser.add_argument('filename')
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110 parser.add_argument('--list',
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111 action = ListTestSuiteAction,
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112 help = 'Lists all possible checks and exit',
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113 )
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114 args = parser.parse_args()
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115 config = load_config('ldcheck.cfg')
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116 for ldconfig_ldr_path in find_ldconfig_ldr_paths(config):
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117 with ldconfig_ldr_path.open() as ldconfig_ldr:
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118 load_colours(ldconfig_ldr)
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119 with open(args.filename) as file:
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120 from os.path import basename
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121 model = read_ldraw(
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122 file,
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123 name = basename(args.filename),
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124 config = config,
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125 )
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126 from testsuite import load_tests, check_model, format_report
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127 test_suite = load_tests()
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128 report = check_model(model, test_suite)
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129 print(format_report(report, model, test_suite))

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