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Improved robustness
This commit is contained in:
Jonas Borgström
parent
af8c943694
commit
d0d8dc5f1e
3 changed files with 41 additions and 24 deletions
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@ -1,5 +1,7 @@
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import os
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import sys
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import hashlib
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import logging
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import zlib
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import cPickle
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from optparse import OptionParser
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@ -70,7 +72,7 @@ def list(self):
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def extract(self):
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for item in self.items:
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assert item['path'][0] not in ('/', '\\', ':')
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print item['path']
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logging.info(item['path'])
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if item['type'] == 'DIR':
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if not os.path.exists(item['path']):
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os.makedirs(item['path'])
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@ -89,15 +91,14 @@ def extract(self):
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def verify(self):
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for item in self.items:
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if item['type'] == 'FILE':
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print item['path'], '...',
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for chunk in item['chunks']:
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id = self.chunk_idx[chunk]
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data = self.store.get(NS_CHUNKS, id)
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if hashlib.sha1(data).digest() != id:
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print 'ERROR'
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logging.ERROR('%s ... ERROR', item['path'])
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break
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else:
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print 'OK'
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logging.info('%s ... OK', item['path'])
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def delete(self, cache):
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self.store.delete(NS_ARCHIVES, self.name)
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@ -115,23 +116,30 @@ def create(self, name, paths, cache):
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for root, dirs, files in os.walk(path):
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for d in dirs:
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p = os.path.join(root, d)
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print p
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self.items.append(self.process_dir(p, cache))
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for f in files:
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p = os.path.join(root, f)
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print p
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self.items.append(self.process_file(p, cache))
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entry = self.process_file(p, cache)
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if entry:
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self.items.append(entry)
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self.save(name)
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cache.archives.append(name)
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cache.save()
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def process_dir(self, path, cache):
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path = path.lstrip('/\\:')
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logging.info(path)
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return {'type': 'DIR', 'path': path}
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def process_file(self, path, cache):
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with open(path, 'rb') as fd:
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try:
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fd = open(path, 'rb')
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except IOError, e:
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logging.error(e)
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return
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with fd:
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path = path.lstrip('/\\:')
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logging.info(path)
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chunks = []
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size = 0
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for chunk in chunkify(fd, CHUNK_SIZE, 30):
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@ -186,6 +194,9 @@ def archive_stats(self, archive_name):
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def run(self):
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parser = OptionParser()
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parser.add_option("-v", "--verbose",
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action="store_true", dest="verbose", default=False,
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help="Print status messages to stdout")
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parser.add_option("-s", "--store", dest="store",
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help="path to dedupe store", metavar="STORE")
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parser.add_option("-c", "--create", dest="create_archive",
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@ -204,25 +215,32 @@ def run(self):
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parser.add_option("-S", "--stats", dest="archive_stats",
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help="Display archive statistics", metavar="ARCHIVE")
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(options, args) = parser.parse_args()
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if options.verbose:
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logging.basicConfig(level=logging.INFO, format='%(message)s')
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else:
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logging.basicConfig(level=logging.WARNING, format='%(message)s')
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if options.store:
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self.store = BandStore(options.store)
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else:
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parser.error('No store path specified')
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self.cache = Cache(self.store)
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if options.list_archives:
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if options.list_archives and not args:
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self.list_archives()
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elif options.list_archive:
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elif options.list_archive and not args:
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self.list_archive(options.list_archive)
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elif options.verify_archive:
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elif options.verify_archive and not args:
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self.verify_archive(options.verify_archive)
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elif options.extract_archive:
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elif options.extract_archive and not args:
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self.extract_archive(options.extract_archive)
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elif options.delete_archive:
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elif options.delete_archive and not args:
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self.delete_archive(options.delete_archive)
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elif options.create_archive:
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self.create_archive(options.create_archive, args)
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elif options.archive_stats:
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elif options.archive_stats and not args:
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self.archive_stats(options.archive_stats)
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else:
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parser.error('Invalid usage')
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sys.exit(1)
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def main():
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archiver = Archiver()
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@ -18,8 +18,6 @@ def __init__(self, store):
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'%s.cache' % self.store.uuid)
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self.tid = -1
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self.open()
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self.total = 0
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self.max = 0
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if self.tid != self.store.tid:
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self.init()
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@ -47,8 +45,6 @@ def init(self):
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return
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print 'Recreating cache...'
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for id in self.store.list(NS_ARCHIVES):
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archive = cPickle.loads(zlib.decompress(self.store.get(NS_ARCHIVES, id)))
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self.archives.append(archive['name'])
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for id, sum, csize, osize in archive['chunks']:
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@ -76,12 +72,7 @@ def add_chunk(self, data):
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osize = len(data)
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data = zlib.compress(data)
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id = hashlib.sha1(data).digest()
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self.total += 1
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if osize == 55001* 4:
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self.max += 1
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print 'rate = %.2f' % (100.*self.max/self.total)
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if self.seen_chunk(id):
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print 'yay %d bytes' % osize
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return self.chunk_incref(id)
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csize = len(data)
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self.store.put(NS_CHUNKS, id, data)
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@ -104,7 +95,6 @@ def chunk_decref(self, id):
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count, csize, osize = self.chunkmap[id]
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if count == 1:
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del self.chunkmap[id]
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print 'deleting chunk: ', id.encode('hex')
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self.store.delete(NS_CHUNKS, id)
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else:
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self.chunkmap[id] = (count - 1, csize, osize)
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@ -2,6 +2,15 @@
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Dedupstore
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==========
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TODO
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----
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* Symbolic links
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* Owner, group, mode
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* msgpack
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* Hard links
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cache = Cache(path,)
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for file in files:
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