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Fix bugs and clean up data in the way diffs are generated.

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This commit is contained in:
yackob03 2013-10-18 20:19:05 -04:00
parent 6bebfcc3a1
commit 4679b0dfcc
2 changed files with 16 additions and 9 deletions
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15
util/changes.py
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@ -8,26 +8,31 @@ AUFS_METADATA = u'.wh..wh.'
AUFS_WHITEOUT = u'.wh.'
AUFS_WHITEOUT_PREFIX_LENGTH = len(AUFS_WHITEOUT)
ALLOWED_TYPES = {tarfile.REGTYPE, tarfile.AREGTYPE}
def files_and_dirs_from_tar(source_stream, removed_prefix_collector):
tar_stream = tarfile.open(mode='r|*', fileobj=source_stream)
for tar_info in tar_stream:
absolute = os.path.relpath(unicode(tar_info.name), './')
absolute = os.path.relpath(tar_info.name.decode('utf-8'), './')
dirname = os.path.dirname(absolute)
filename = os.path.basename(absolute)
# Skip directories and metadata
if (filename.startswith(AUFS_METADATA) or
absolute.startswith(AUFS_METADATA)):
# Skip
continue
elif filename.startswith(AUFS_WHITEOUT):
filename = filename[AUFS_WHITEOUT_PREFIX_LENGTH:]
removed_prefix_collector.add(absolute)
removed_filename = filename[AUFS_WHITEOUT_PREFIX_LENGTH:]
removed_prefix = os.path.join('/', dirname, removed_filename)
removed_prefix_collector.add(removed_prefix)
continue
else:
yield "/" + absolute
elif tar_info.type in ALLOWED_TYPES:
yield '/' + absolute
def __compute_removed(base_trie, removed_prefixes):