ac5013a026
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2585 fd906abe-77d9-0310-91a1-e0d9ade77398
85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
#
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# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Filesystem crawler.
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$Id$
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"""
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import os
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from fnmatch import filter
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from datetime import datetime
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from twisted.internet.defer import Deferred
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from zope.interface import implements
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from cybertools.agent.base.agent import Master
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from cybertools.agent.components import agents
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from cybertools.agent.crawl.base import Resource, Metadata
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from cybertools.agent.crawl.base import Crawler
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from cybertools.agent.util.task import coiterate
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class FilesystemCrawler(Crawler):
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def collect(self):
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self.collected = []
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coiterate(self.crawlFilesystem()).addCallback(self.finished)
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# TODO: addErrback()
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self.deferred = Deferred()
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return self.deferred
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def finished(self, result):
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self.deferred.callback(self.collected)
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def crawlFilesystem(self):
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directory = self.params.get('directory')
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pattern = self.params.get('pattern') or '*'
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lastRun = self.params.get('lastrun') or datetime(1980, 1, 1)
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for path, dirs, files in os.walk(directory):
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if '.svn' in dirs:
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del dirs[dirs.index('.svn')]
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for x in self.loadFiles(path, files, pattern, lastRun):
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yield None
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def loadFiles(self, path, files, pattern, lastRun):
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for f in filter(files, pattern):
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filename = os.path.join(path, f)
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mtime = datetime.fromtimestamp(os.path.getmtime(filename))
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if mtime <= lastRun: # file not changed
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continue
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meta = dict(
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path=filename,
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)
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self.collected.append(FileResource(path=filename, metadata=Metadata(meta)))
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yield None
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agents.register(FilesystemCrawler, Master, name='crawl.filesystem')
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class FileResource(Resource):
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type = 'file'
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application = 'filesystem'
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@property
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def data(self):
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f = open(self.path, 'r')
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text = f.read()
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f.close()
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return text
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