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Make config and repositories iterable #177

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Make config and repositories iterable #177

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27 changes: 25 additions & 2 deletions decouple.py
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,9 @@ def __call__(self, *args, **kwargs):
"""
return self.get(*args, **kwargs)

def __iter__(self):
return iter(self.repository)


class RepositoryEmpty(object):
def __init__(self, source='', encoding=DEFAULT_ENCODING):
Expand All @@ -117,6 +120,9 @@ def __contains__(self, key):
def __getitem__(self, key):
return None

def __iter__(self):
return iter(())


class RepositoryIni(RepositoryEmpty):
"""
Expand All @@ -139,6 +145,9 @@ def __getitem__(self, key):
except NoOptionError:
raise KeyError(key)

def __iter__(self):
return iter(self.parser[self.SECTION])


class RepositoryEnv(RepositoryEmpty):
"""
Expand All @@ -165,6 +174,9 @@ def __contains__(self, key):
def __getitem__(self, key):
return self.data[key]

def __iter__(self):
return iter(self.data)


class RepositorySecret(RepositoryEmpty):
"""
Expand All @@ -187,6 +199,9 @@ def __contains__(self, key):
def __getitem__(self, key):
return self.data[key]

def __iter__(self):
return iter(self.data)


class AutoConfig(object):
"""
Expand Down Expand Up @@ -225,7 +240,9 @@ def _find_file(self, path):
# reached root without finding any files.
return ''

def _load(self, path):
def _load(self, path=None):
path = path or self.search_path or self._caller_path()

# Avoid unintended permission errors
try:
filename = self._find_file(os.path.abspath(path))
Expand All @@ -241,9 +258,15 @@ def _caller_path(self):
path = os.path.dirname(frame.f_back.f_back.f_code.co_filename)
return path

def __iter__(self):
if not self.config:
self._load()

return iter(self.config)

def __call__(self, *args, **kwargs):
if not self.config:
self._load(self.search_path or self._caller_path())
self._load()

return self.config(*args, **kwargs)

Expand Down