You can try converting luarocks packages to nix packages with the command `nix-shell -p luarocks-nix` and then `luarocks nix PKG_NAME`.
#### Packaging a library manually {#packaging-a-library-manually}
You can develop your package as you usually would, just don't forget to wrap it
within a `toLuaModule` call, for instance
```nix
{
mynewlib = toLuaModule (
stdenv.mkDerivation {
# ...
}
);
}
```
There is also the `buildLuaPackage` function that can be used when lua modules
are not packaged for luarocks. You can see a few examples at `pkgs/top-level/lua-packages.nix`.
## Lua Reference {#lua-reference}
### Lua interpreters {#lua-interpreters}
Versions 5.1, 5.2, 5.3 and 5.4 of the lua interpreter are available as
respectively `lua5_1`, `lua5_2`, `lua5_3` and `lua5_4`. Luajit is available too.
The Nix expressions for the interpreters can be found in `pkgs/development/interpreters/lua-5`.
#### Attributes on lua interpreters packages {#attributes-on-lua-interpreters-packages}
Each interpreter has the following attributes:
- `interpreter`. Alias for `${pkgs.lua}/bin/lua`.
- `buildEnv`. Function to build lua interpreter environments with extra packages bundled together. See section *lua.buildEnv function* for usage and documentation.
- `withPackages`. Simpler interface to `buildEnv`.
- `pkgs`. Set of Lua packages for that specific interpreter. The package set can be modified by overriding the interpreter and passing `packageOverrides`.
#### `buildLuarocksPackage` function {#buildluarockspackage-function}
The `buildLuarocksPackage` function is implemented in `pkgs/development/interpreters/lua-5/build-luarocks-package.nix`
The following is an example:
```nix
{
luaposix = buildLuarocksPackage {
pname = "luaposix";
version = "34.0.4-1";
src = fetchurl {
url = "https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luaposix-34.0.4-1.src.rock";
hash = "sha256-4mLJG8n4m6y4Fqd0meUDfsOb9RHSR0qa/KD5KCwrNXs=";
};
disabled = (luaOlder "5.1") || (luaAtLeast "5.4");
propagatedBuildInputs = [
bit32
lua
std_normalize
];
meta = {
homepage = "https://github.com/luaposix/luaposix/";
description = "Lua bindings for POSIX";
maintainers = with lib.maintainers; [
vyp