tree-sitters/flake.nix

{
  description = "Tree sitter collection";

  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (sys:
      let pkgs = nixpkgs.legacyPackages.${sys};
          deps = [ pkgs.tree-sitter pkgs.nodejs pkgs.gcc ];

          compile-tree-sitter = { src, name }: pkgs.stdenv.mkDerivation {
            # inherit src name;
            src = src;
            name = name;

            nativeBuildInputs = deps;

            buildPhase = ''
              tree-sitter generate
            '';

            installPhase = ''
              mkdir -p "$out/lib"
              cp -r src "$out/src"
              touch src/scanner.c

              gcc -c src/parser.c -o parser.o
              gcc -c src/scanner.c -o scanner.o
              ar rcs "$out/lib/libtree-sitter-$name.a" parser.o scanner.o

              gcc -shared src/scanner.c src/parser.c -o "$out/lib/libtree-sitter-$name.so"
            '';

            # TODO: Get tests working
            # For some reason, just doing tree-sitter test fails with "read-only file system"
          };

      in rec {
        packages.agda = compile-tree-sitter { src = ./agda; name = "agda"; };
        packages.bash = compile-tree-sitter { src = ./bash; name = "bash"; };
        packages.c = compile-tree-sitter { src = ./c; name = "c"; };
        packages.nix = compile-tree-sitter { src = ./nix; name = "nix"; };
        packages.python = compile-tree-sitter { src = ./python; name = "python"; };
        packages.rust = compile-tree-sitter { src = ./rust; name = "rust"; };
        packages.html = compile-tree-sitter { src = ./html; name = "html"; };
        packages.javascript = compile-tree-sitter { src = ./javascript; name = "javascript"; };
      }
    );
}