A world being unsupported may not be a fatal application error in
all instances where this codepath in world.py is used, hence
throwing an exception is more sensible.
Apparently we had memcached support. It was never worth it, and put
a weird md5 hash calculation in the path of regular caching. Seeing
as it was completely undocumented, I doubt anyone has ever used it.
A common case is a corrupt (or empty) level.dat file. This condition
wasn't properly caught, yielding a less-than-useful stack trace. Even
more concerning is that this could happen when a user is just running
"overviewer.py" to get a world listing.
This has been fixed to improve the user experience
Often, when people ask questions about Overviewer, "all it says is
'Welcome to Overivwer'" is a common question. Enable a little more
logging info at the start of Overviewer to hopefully make it more clear
that something is happening
There were some problems when a level.dat contained a non-ascii name, or
when a level.dat lived in a directory with a non-ascii name.
Paths returned by os.listdir are encoded, so we need to decode them
before printing them. When calculating the max length of the enumerated
world names, were we for some reason calling str() before taking the
len(). The had the effect of converting unicode strings into
non-unicode strings, which is not the correct thing to do.
This only affects what's written to overviewerConfig.js. That is, it
does not change the amount of tiles rendered (it's exactly analogous to
maxzom)
Closes#994
This also uses a dedicated logger instead of passing everything to the
root logger. `overviewer_core` still needs to be updated to reflect
this.
Additionally, `logger.configure` has been simplified.
Now correctly avoids globbing problems. Removed a bit of irrelevant code
for old style minecraft.jar. Tweaked error messages for resource packs
instead of texture files.
Up to this point, when launching overviewer with python3, overviewer would
(ironic as it is) crash on the line where the error message would be displayed
with a syntax error. I have now fixed this.
