CODEWITHSUNDEEP
lua
Gwisin
Gwisin

Reputation: 59

How to get absolute path of a lua script file

I have a lua script A.lua, which calls B.lua by specifying package.path. In B.lua, it has to use its absolute path. My question is, how can I get the absolute path of B.lua in B.lua? "PWD" doesn't work since PWD just return the current working directory. debug doesn't work either, since B.lua is not call from command line. Anyone have better solution?

Upvotes: 2

Views: 5096

Answers (1)

nobody
nobody

Reputation: 4264

If you have a file somewhere in package.path that require is able to find, then you can also easily get the path by using package.searchpath.

If "foo.bar.baz" is the name under which require will load the file, then

package.searchpath( "foo.bar.baz", package.path )
--> (e.g.) "/usr/share/lua/5.3/foo/bar/baz.lua"

gets you the path.

This works in Lua 5.2 or newer and LuaJIT as well.

Upvotes: 3

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