nix-gen-luarc-json/flake.nix
2024-02-23 12:48:35 +01:00

105 lines
3.1 KiB
Nix

{
description = "Generate a .luarc.json for Lua/Neovim devShells";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
flake-parts.url = "github:hercules-ci/flake-parts";
};
outputs = inputs @ {
self,
nixpkgs,
flake-parts,
}:
flake-parts.lib.mkFlake {inherit inputs;} {
systems = [
"x86_64-linux"
"x86_64-darwin"
"aarch64-darwin"
"aarch64-linux"
];
perSystem = {system, ...}: let
pkgs = import nixpkgs {
inherit system;
overlays = [
self.overlays.default
];
};
luarc = pkgs.mk-luarc-json {
plugins = with pkgs.vimPlugins; [telescope-nvim fidget-nvim];
};
in {
devShells.default = pkgs.mkShell {
shellHook = ''
ln -fs ${pkgs.luarc-to-json luarc} .luarc.json
'';
};
};
flake = {
overlays.default = final: prev: {
mk-luarc = {
# list of plugins that have a /lua directory
nvim ? final.neovim-unwrapped,
neodev-types ? "stable",
plugins ? [],
lua-version ? "5.1",
disabled-diagnostics ? [],
}: let
partitions = builtins.partition (plugin:
plugin.vimPlugin or false
|| plugin.pname or "" == "nvim-treesitter")
plugins;
nvim-plugins = partitions.right;
rocks = partitions.wrong;
plugin-luadirs = builtins.map (plugin: "${plugin}/lua") nvim-plugins;
pkg-libdirs = builtins.map (pkg: "${pkg}/lib/lua/${lua-version}") rocks;
pkg-sharedirs = builtins.map (pkg: "${pkg}/share/lua/${lua-version}") rocks;
in {
runtime.version = "LuaJIT";
Lua = {
globals = [
"vim"
];
workspace = {
library =
[
"${nvim}/share/nvim/runtime/lua"
"${final.vimPlugins.neodev-nvim}/types/${neodev-types}"
"\${3rd}/busted/library"
"\${3rd}/luassert/library"
]
++ plugin-luadirs
++ pkg-libdirs
++ pkg-sharedirs;
ignoreDir = [
".git"
".github"
".direnv"
"result"
"nix"
"doc"
];
};
diagnostics = {
libraryFiles = "Disable";
disable = disabled-diagnostics;
};
};
};
luarc-to-json = luarc:
final.runCommand ".luarc.json" {
buildInputs = [
final.jq
];
passAsFile = ["rawJSON"];
rawJSON = builtins.toJSON luarc;
} ''
{
jq . <"$rawJSONPath"
} >$out
'';
mk-luarc-json = attrs: final.luarc-to-json (final.mk-luarc attrs);
};
};
};
}