AstralTransRocketries/pymclevel
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automatically recover from a damaged level.dat.

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if level.dat is unreadable, try to read level.dat_old and save if successful.

plus stricter checks on the filename when it doesn't point to a world folder.
This commit is contained in:
David Vierra 2010-10-28 00:03:01 -10:00
parent a80b2c867c
commit 61ec62f9d2
1 changed files with 18 additions and 9 deletions
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27
mclevel.py
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@ -1811,27 +1811,36 @@ class MCInfdevOldLevel(MCLevel):
if os.path.isdir(filename):
self.worldDir = filename
filename = os.path.join(filename, "level.dat")
else:
if os.path.basename(filename) in ("level.dat", "level.dat_old"):
self.worldDir = os.path.dirname(filename)
else:
raise IOError, 'File is not a Minecraft Alpha world'
self.worldDir = os.path.split(filename)[0]
self.filename = os.path.join(self.worldDir, "level.dat")
#maps (cx,cz) pairs to InfdevChunks
self._presentChunks = {};
#used to limit memory usage
self.loadedChunks = dequeset()
self.decompressedChunks = dequeset()
if create:
self.create(filename, random_seed, last_played);
else:
root_tag = nbt.load(filename)
self.root_tag = root_tag;
self.filename = filename;
if create:
self.create(self.filename, random_seed, last_played);
self.saveInPlace();
else:
try:
self.root_tag = nbt.load(self.filename)
except Exception, e:
filename_old = os.path.join(self.worldDir, "level.dat_old")
info( "Error loading level.dat, trying level.dat_old ({0})".format( e ) )
self.root_tag = nbt.load(filename_old)
info( "level.dat restored from backup." )
self.saveInPlace();
self.dirhashes = [self.dirhash(n) for n in range(64)];
self.dirhash=self.dirhashlookup;