lua: list files in a directory

[domtron vox]

Is there a way to list the file names in a directory? I tried to use the function in the second answer at http://stackoverflow.com/questions/5303174/get-list-of-directory-in-a-lua but popen function is not supported. Also, that particular function only works with systems that have 'ls' installed. I also browsed the builtin lua files a bit but, didn't find anything.

Any ideas? If it's not possible I think this would be a good helper function to include in the built-in scripts.

Thanks in advance.

[Krock]

Is there a way to list the file names in a directory? I tried to use the function in the second answer at http://stackoverflow.com/questions/5303174/get-list-of-directory-in-a-lua but popen function is not supported. Also, that particular function only works with systems that have 'ls' installed. I also browsed the builtin lua files a bit but, didn't find anything.

Any ideas? If it's not possible I think this would be a good helper function to include in the built-in scripts.

Thanks in advance.

In which context do you need that function? Mostly it's enough to store data in one file.

[Sokomine]

Most mods I've seen which require such a functionality use diffrent approaches based on operating system. See for example towntest.

[ShadowNinja]

You can depend on LuaFileSystem and use the dir iterator.
For example:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

local lfs = require("lfs")
local modpath = minetest.get_modpath(minetest.get_current_modname())

print("List of textures in this mod: ")
for filename in lfs.dir(modpath .. "/textures") do
        if filename ~= "." and filename ~= ".." then
                print("\t" .. filename)
        end
end


[domtron vox]

In which context do you need that function? Mostly it's enough to store data in one file.

For configuration, I'm playing around with this mod request and wanted to have a sub-folder of the mod were kits could be stored. For example kitmod/kits/noob.kit defines the kit for the rank "noob."

You can depend on LuaFileSystem and use the dir iterator.
For example:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

local lfs = require("lfs")
local modpath = minetest.get_modpath(minetest.get_current_modname())

print("List of textures in this mod: ")
for filename in lfs.dir(modpath .. "/textures") do
        if filename ~= "." and filename ~= ".." then
                print("\t" .. filename)
        end
end


I saw that lfs was a solution, but I thought it wouldn't be usable in the context of minetest. Would anyone who installed the mod need to also download and install lfs or can I include it somehow?


@Sokomine: thanks for the link, I'll check it out.



EDIT: Ok the town test code helped a lot.

[ShadowNinja]

I saw that lfs was a solution, but I thought it wouldn't be usable in the context of minetest. Would anyone who installed the mod need to also download and install lfs or can I include it somehow?

You can pre-compile it and include it by adding:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

package.cpath = package.cpath
                .. ";" .. modpath .. "/lib?.so"
                .. ";" .. modpath .. "/?.dll"


After the modpath fetching but before the require() call.