82 lines
2 KiB
Python
82 lines
2 KiB
Python
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import os
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import shutil
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from storage.basestorage import BaseStorage
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class LocalStorage(BaseStorage):
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def __init__(self, storage_path):
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self._root_path = storage_path
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def _init_path(self, path=None, create=False):
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path = os.path.join(self._root_path, path) if path else self._root_path
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if create is True:
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dirname = os.path.dirname(path)
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if not os.path.exists(dirname):
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os.makedirs(dirname)
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return path
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def get_content(self, path):
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path = self._init_path(path)
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with open(path, mode='r') as f:
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return f.read()
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def put_content(self, path, content):
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path = self._init_path(path, create=True)
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with open(path, mode='w') as f:
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f.write(content)
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return path
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def stream_read(self, path):
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path = self._init_path(path)
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with open(path, mode='rb') as f:
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while True:
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buf = f.read(self.buffer_size)
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if not buf:
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break
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yield buf
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def stream_read_file(self, path):
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path = self._init_path(path)
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return open(path, mode='rb')
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def stream_write(self, path, fp):
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# Size is mandatory
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path = self._init_path(path, create=True)
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with open(path, mode='wb') as f:
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while True:
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try:
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buf = fp.read(self.buffer_size)
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if not buf:
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break
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f.write(buf)
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except IOError:
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break
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def list_directory(self, path=None):
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path = self._init_path(path)
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prefix = path[len(self._root_path) + 1:] + '/'
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exists = False
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for d in os.listdir(path):
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exists = True
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yield prefix + d
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if exists is False:
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# Raises OSError even when the directory is empty
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# (to be consistent with S3)
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raise OSError('No such directory: \'{0}\''.format(path))
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def exists(self, path):
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path = self._init_path(path)
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return os.path.exists(path)
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def remove(self, path):
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path = self._init_path(path)
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if os.path.isdir(path):
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shutil.rmtree(path)
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return
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try:
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os.remove(path)
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except OSError:
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pass
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