| | import os |
| | from distutils.dist import Distribution |
| |
|
| | __metaclass__ = type |
| |
|
| | class EnvironmentConfig: |
| | def __init__(self, distutils_section='ALL', **kw): |
| | self._distutils_section = distutils_section |
| | self._conf_keys = kw |
| | self._conf = None |
| | self._hook_handler = None |
| |
|
| | def dump_variable(self, name): |
| | conf_desc = self._conf_keys[name] |
| | hook, envvar, confvar, convert, append = conf_desc |
| | if not convert: |
| | convert = lambda x : x |
| | print('%s.%s:' % (self._distutils_section, name)) |
| | v = self._hook_handler(name, hook) |
| | print(' hook : %s' % (convert(v),)) |
| | if envvar: |
| | v = os.environ.get(envvar, None) |
| | print(' environ: %s' % (convert(v),)) |
| | if confvar and self._conf: |
| | v = self._conf.get(confvar, (None, None))[1] |
| | print(' config : %s' % (convert(v),)) |
| |
|
| | def dump_variables(self): |
| | for name in self._conf_keys: |
| | self.dump_variable(name) |
| |
|
| | def __getattr__(self, name): |
| | try: |
| | conf_desc = self._conf_keys[name] |
| | except KeyError: |
| | raise AttributeError( |
| | f"'EnvironmentConfig' object has no attribute '{name}'" |
| | ) from None |
| |
|
| | return self._get_var(name, conf_desc) |
| |
|
| | def get(self, name, default=None): |
| | try: |
| | conf_desc = self._conf_keys[name] |
| | except KeyError: |
| | return default |
| | var = self._get_var(name, conf_desc) |
| | if var is None: |
| | var = default |
| | return var |
| |
|
| | def _get_var(self, name, conf_desc): |
| | hook, envvar, confvar, convert, append = conf_desc |
| | if convert is None: |
| | convert = lambda x: x |
| | var = self._hook_handler(name, hook) |
| | if envvar is not None: |
| | envvar_contents = os.environ.get(envvar) |
| | if envvar_contents is not None: |
| | envvar_contents = convert(envvar_contents) |
| | if var and append: |
| | if os.environ.get('NPY_DISTUTILS_APPEND_FLAGS', '1') == '1': |
| | var.extend(envvar_contents) |
| | else: |
| | |
| | |
| | |
| | var = envvar_contents |
| | else: |
| | var = envvar_contents |
| | if confvar is not None and self._conf: |
| | if confvar in self._conf: |
| | source, confvar_contents = self._conf[confvar] |
| | var = convert(confvar_contents) |
| | return var |
| |
|
| |
|
| | def clone(self, hook_handler): |
| | ec = self.__class__(distutils_section=self._distutils_section, |
| | **self._conf_keys) |
| | ec._hook_handler = hook_handler |
| | return ec |
| |
|
| | def use_distribution(self, dist): |
| | if isinstance(dist, Distribution): |
| | self._conf = dist.get_option_dict(self._distutils_section) |
| | else: |
| | self._conf = dist |
| |
|
