Re: Finding and loading Lua files

[Asko Kauppi <asko.kauppi@...>]

Good question, they're so obvious :D

Having "lua/5.1" in LUA_LDIR means any system scripts will remain valid 
only until the user upgrades to a new X.X Lua version.  Say, you have 
Lua 5.1, Lumikki and Hamster installed.  You "apt-get upgrade", 
bringing Lua to 5.2.  Poof, the scripts won't be found.

While I understand this from the 'purity' perspective (no backwards 
compatibility guaranteed), it will become a pain.

What if Lumikki (in the package declaration) guarantees it can be used 
with Lua >=5.0.2, <=5.2.  This can be done.  Where should it put the 
files now?  :)

I'd recommend adding "/share/lua/" to the path, after the specific 
version.  This way, such inter-version scripts could live in peace, and 
not need to be tossed around if the engine version (slightly) changes.

-ak


22.4.2005 kello 15:54, Mike Pall kirjoitti:

 Hi,
> Asko Kauppi wrote:
> > I was surprised that 5.1w4 still has:
> >
> > 	#define LUA_PATH_DEFAULT  \
> > 		"./?.lua;" LUA_LDIR "/?.lua;" LUA_LDIR "/?/init.lua"
> >
> > This means, there's no common default for where system-wide library
> > scripts would be installed, is there?
>
> How did you manage to miss the three lines above that define? :-)
>
> #define LUA_ROOT        "/usr/local"
> #define LUA_LDIR        LUA_ROOT "/share/lua/5.1"
> #define LUA_CDIR        LUA_ROOT "/lib/lua/5.1"
>
> Bye,
>      Mike