trouble with snapshots

[rbos]

I'm generating a snapshot file with 7zip -

7z a -tzip -xr!imgcache -xr!public_html/map -mx0 $backupdir/$filename . > /dev/null

and seeing the filename, subsequently, in-game with /listsnapshots,

but when I do //use latest, and //restore, I get

"Failed to load snapshot: invalid CEN header"

The zip file is valid (unzip can list the files and extract from it) as far as I can tell.

Maybe if I try a different compression level..

[rbos]

no dice with -mx1. I should try it with regular zip I guess.

[rbos]

When I try to //use today-01:18.zip, it says "That snapshot does not exist or is not available" in-game.

When I rename it to 'tester.zip' (this one made with the regular zip utility, not 7zip), I get "invalid CEN header" again.

I'm running on Debian, here's my worldedit.properties:

#Minecraft Properties File
#Wed Oct 20 20:40:03 PDT 2010
snapshots-dir=/attached/minecraft-backups
allowed-blocks=0,1,2,3,4,5,7,8,9,10,11,12,13,14,15,16,17,18,19,20,35,41,42,43,44,45,47,48,49,52,53,54,56,57,58,60,61,62,67,73,78,79,80,81,82,85
map-script-commands=true
max-blocks-changed=-1

I'm going to bed. If you guys have any input for tomorrow that'd be great.

[sk89q]

How big is the ZIP file? Regardless, I just searched around and it appears that Java's Zip implementation has some major flaws that may be contributing to your problem. I think I'll be replacing Java's Zip implementation with a 3rd-party's by the next release. Hopefully that will resolve your issue.

As for the "snapshot does not exist or is not available," it's due to the bit zealous check on the list of allowed characters in a filename. (":" isn't currently an allowed character.) I'll see if I can make it more lenient in the next version.

[rbos]

Thanks for the response, the zip file is about 1.3 gigabytes.

Good catch on the allowed characters. I'm okay with overzealous filename rules, as long as the rules are documented. :)

Really looking forward to getting this working, selective rollbacks without a server restart will be fantastic!

[sk89q]

Try this:
http://sk89q.com/tempxfer/worldedit-eebe6e.zip

You need to download TrueZIP:
http://repo1.maven.org/maven2/de/schlichtherle/truezip/6.8.1/truezip-6.8.1.jar
Put it in plugins/ as "truezip.jar".

There's nothing indicating that TrueZIP is being used though (it falls back to Java's ZIP library), so the real test is whether your ZIP files open. :)

[rbos]

Seems to work now. :D

[sk89q]

Good to hear!