mirror of https://github.com/scrapy/scrapy.git
50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
from __future__ import with_statement
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from glob import glob
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from os import path, makedirs, remove
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from shutil import copyfileobj, rmtree
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from distutils.version import LooseVersion
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from zope.interface import implements
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from twisted.application.service import Service
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from .interfaces import IEggStorage
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class FilesystemEggStorage(Service):
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implements(IEggStorage)
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def __init__(self, config):
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self.basedir = config.get('eggs_dir', 'eggs')
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def put(self, eggfile, project, version):
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eggpath = self._eggpath(project, version)
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eggdir = path.dirname(eggpath)
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if not path.exists(eggdir):
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makedirs(eggdir)
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with open(eggpath, 'wb') as f:
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copyfileobj(eggfile, f)
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def get(self, project, version=None):
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if version is None:
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version = self.list(project)[-1]
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return version, open(self._eggpath(project, version), 'rb')
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def list(self, project):
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eggdir = path.join(self.basedir, project)
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versions = [path.splitext(path.basename(x))[0] \
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for x in glob("%s/*.egg" % eggdir)]
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return sorted(versions, key=LooseVersion)
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def delete(self, project, version=None):
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if version is None:
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rmtree(path.join(self.basedir, project))
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else:
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remove(self._eggpath(project, version))
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if not self.list(project): # remove project if no versions left
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self.delete(project)
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def _eggpath(self, project, version):
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x = path.join(self.basedir, project, "%s.egg" % version)
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return x
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