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      1 import os
      2 import sys
      3 
      4 PY2 = sys.version_info[0] < 3
      5 
      6 class TestingConfig:
      7     """"
      8     TestingConfig - Information on the tests inside a suite.
      9     """
     10 
     11     @staticmethod
     12     def frompath(path, parent, litConfig, mustExist, config = None):
     13         if config is None:
     14             # Set the environment based on the command line arguments.
     15             environment = {
     16                 'LIBRARY_PATH' : os.environ.get('LIBRARY_PATH',''),
     17                 'LD_LIBRARY_PATH' : os.environ.get('LD_LIBRARY_PATH',''),
     18                 'PATH' : os.pathsep.join(litConfig.path +
     19                                          [os.environ.get('PATH','')]),
     20                 'SYSTEMROOT' : os.environ.get('SYSTEMROOT',''),
     21                 'TERM' : os.environ.get('TERM',''),
     22                 'LLVM_DISABLE_CRASH_REPORT' : '1',
     23                 }
     24 
     25             if sys.platform == 'win32':
     26                 environment.update({
     27                         'INCLUDE' : os.environ.get('INCLUDE',''),
     28                         'PATHEXT' : os.environ.get('PATHEXT',''),
     29                         'PYTHONUNBUFFERED' : '1',
     30                         'TEMP' : os.environ.get('TEMP',''),
     31                         'TMP' : os.environ.get('TMP',''),
     32                         })
     33 
     34             # Set the default available features based on the LitConfig.
     35             available_features = []
     36             if litConfig.useValgrind:
     37                 available_features.append('valgrind')
     38                 if litConfig.valgrindLeakCheck:
     39                     available_features.append('vg_leak')
     40 
     41             config = TestingConfig(parent,
     42                                    name = '<unnamed>',
     43                                    suffixes = set(),
     44                                    test_format = None,
     45                                    environment = environment,
     46                                    substitutions = [],
     47                                    unsupported = False,
     48                                    on_clone = None,
     49                                    test_exec_root = None,
     50                                    test_source_root = None,
     51                                    excludes = [],
     52                                    available_features = available_features,
     53                                    pipefail = True)
     54 
     55         if os.path.exists(path):
     56             # FIXME: Improve detection and error reporting of errors in the
     57             # config file.
     58             f = open(path)
     59             cfg_globals = dict(globals())
     60             cfg_globals['config'] = config
     61             cfg_globals['lit'] = litConfig
     62             cfg_globals['__file__'] = path
     63             try:
     64                 data = f.read()
     65                 if PY2:
     66                     exec("exec data in cfg_globals")
     67                 else:
     68                     exec(data, cfg_globals)
     69                 if litConfig.debug:
     70                     litConfig.note('... loaded config %r' % path)
     71             except SystemExit:
     72                 e = sys.exc_info()[1]
     73                 # We allow normal system exit inside a config file to just
     74                 # return control without error.
     75                 if e.args:
     76                     raise
     77             f.close()
     78         else:
     79             if mustExist:
     80                 litConfig.fatal('unable to load config from %r ' % path)
     81             elif litConfig.debug:
     82                 litConfig.note('... config not found  - %r' %path)
     83 
     84         config.finish(litConfig)
     85         return config
     86 
     87     def __init__(self, parent, name, suffixes, test_format,
     88                  environment, substitutions, unsupported, on_clone,
     89                  test_exec_root, test_source_root, excludes,
     90                  available_features, pipefail):
     91         self.parent = parent
     92         self.name = str(name)
     93         self.suffixes = set(suffixes)
     94         self.test_format = test_format
     95         self.environment = dict(environment)
     96         self.substitutions = list(substitutions)
     97         self.unsupported = unsupported
     98         self.on_clone = on_clone
     99         self.test_exec_root = test_exec_root
    100         self.test_source_root = test_source_root
    101         self.excludes = set(excludes)
    102         self.available_features = set(available_features)
    103         self.pipefail = pipefail
    104 
    105     def clone(self, path):
    106         # FIXME: Chain implementations?
    107         #
    108         # FIXME: Allow extra parameters?
    109         cfg = TestingConfig(self, self.name, self.suffixes, self.test_format,
    110                             self.environment, self.substitutions,
    111                             self.unsupported, self.on_clone,
    112                             self.test_exec_root, self.test_source_root,
    113                             self.excludes, self.available_features,
    114                             self.pipefail)
    115         if cfg.on_clone:
    116             cfg.on_clone(self, cfg, path)
    117         return cfg
    118 
    119     def finish(self, litConfig):
    120         """finish() - Finish this config object, after loading is complete."""
    121 
    122         self.name = str(self.name)
    123         self.suffixes = set(self.suffixes)
    124         self.environment = dict(self.environment)
    125         self.substitutions = list(self.substitutions)
    126         if self.test_exec_root is not None:
    127             # FIXME: This should really only be suite in test suite config
    128             # files. Should we distinguish them?
    129             self.test_exec_root = str(self.test_exec_root)
    130         if self.test_source_root is not None:
    131             # FIXME: This should really only be suite in test suite config
    132             # files. Should we distinguish them?
    133             self.test_source_root = str(self.test_source_root)
    134         self.excludes = set(self.excludes)
    135 
    136     @property
    137     def root(self):
    138         """root attribute - The root configuration for the test suite."""
    139         if self.parent is None:
    140             return self
    141         else:
    142             return self.parent.root
    143 
    144