Make all Lua deps lazy

Now only the required version of Lua will be fetched by the package
manager!

Author: natecraddock

build.zig

@@ -22,7 +22,8 @@ pub fn build(b: *Build) void {
     const lang = b.option(Language, "lang", "Lua language version to build") orelse .lua54;
     const shared = b.option(bool, "shared", "Build shared library instead of static") orelse false;
     const luau_use_4_vector = b.option(bool, "luau_use_4_vector", "Build Luau to use 4-vectors instead of the default 3-vector.") orelse false;
-    const upstream = b.dependency(@tagName(lang), .{});
+
+    const upstream = b.lazyDependency(@tagName(lang), .{}) orelse return;
 
     if (lang == .luau and shared) {
         std.debug.panic("Luau does not support compiling or loading shared modules", .{});

build.zig.zon

@@ -12,31 +12,37 @@
         .lua51 = .{
             .url = "https://github.com/natecraddock/lua/archive/refs/tags/5.1.5-1.tar.gz",
             .hash = "12203fe1feebb81635f8df5a5a7242733e441fe3f3043989c8e6b4d6720e96988813",
+            .lazy = true,
         },
 
         .lua52 = .{
             .url = "https://www.lua.org/ftp/lua-5.2.4.tar.gz",
             .hash = "1220d5b2b39738f0644d9ed5b7431973f1a16b937ef86d4cf85887ef3e9fda7a3379",
+            .lazy = true,
         },
 
         .lua53 = .{
             .url = "https://www.lua.org/ftp/lua-5.3.6.tar.gz",
             .hash = "1220937a223531ef6b3fea8f653dc135310b0e84805e7efa148870191f5ab915c828",
+            .lazy = true,
         },
 
         .lua54 = .{
             .url = "https://www.lua.org/ftp/lua-5.4.6.tar.gz",
             .hash = "1220f93ada1fa077ab096bf88a5b159ad421dbf6a478edec78ddb186d0c21d3476d9",
+            .lazy = true,
         },
 
         .luajit = .{
             .url = "https://github.com/LuaJIT/LuaJIT/archive/c525bcb9024510cad9e170e12b6209aedb330f83.tar.gz",
             .hash = "1220ae2d84cfcc2a7aa670661491f21bbed102d335de18ce7d36866640fd9dfcc33a",
+            .lazy = true,
         },
 
         .luau = .{
             .url = "https://github.com/luau-lang/luau/archive/refs/tags/0.607.tar.gz",
             .hash = "122003818ff2aa912db37d4bbda314ff9ff70d03d9243af4b639490be98e2bfa7cb6",
+            .lazy = true,
         },
     },
 }