Can I make some kind of minimalist functions in the description scope ?

[mactul]

Hi !

For a project, I have very long absolute path to create, they look like this:

local architecture = nil
if is_arch("x86") then
    architecture = "x86"
elseif is_arch("x64", "x86_64")
    architecture = "x64"
end
add_includedirs("$(env LIB_COMPILED)/LIB_NAME/VERSION/$(env PLATFORM)" .. architecture .. "/include/")

I'm searching for a way to simplify all of this like this:

add_includedirs(get_lib_compiled_path("LIB_NAME", "VERSION"))

I know that I can do that in the script scope, but this is not very digest and I think this belongs more to the description scope.
But I wasn't able to call a function from the description scope, apart from those xmake provides.

Is it possible to do something like this ?

Thank you in advance,
Mactul

[mactul]

I just found that using local before a function definition makes it callable from the description scope.
This works:

local function get_arch()
    local path = nil
    if is_arch("x86") then
        path = "x86"
    elseif is_arch("x64", "x86_64") then
        path = "x64"
    end

    return path
end

target("test")
    print(get_arch())

But now I'm no longer able to export my function in another file and use includes to simply add this feature in all my xmake.lua files...

[mactul]

Okay, I'm just a big idiot because this works...

function get_arch()
    local path = nil
    if is_arch("x86") then
        path = "x86"
    elseif is_arch("x64", "x86_64") then
        path = "x64"
    end

    return path
end

target("test")
    print(get_arch())

I was sure I'd tried that, but I must have made a typo in the function call.
How could I waste 2 hours looking for a simple solution?

[star-hengxing]

rule("a")
    on_config(function (target)
        local LIB_NAME = target:extraconf("rules", "a", "LIB_NAME")
        local VERSION = target:extraconf("rules", "a", "VERSION")

        target:add("includedirs", path.join("$(env LIB_COMPILED)", LIB_NAME, VERSION, "$(env PLATFORM)", architecture, "include"))
    end)
rule_end()

target("b")
    add_rules("a", {LIB_NAME = "xxx", VERSION = "1.0.0"})