feat: Add recipes to CLI config and add builtin recipe shortcuts (#116)

ecsact/cli/commands/build.cc

@@ -58,6 +58,31 @@ constexpr auto allowed_recipe_extensions = std::array{
 	".json"sv, // json works since yaml is a superset
 };
 
+auto resolve_builtin_recipe( //
+	std::string recipe_str,
+	const char* argv[]
+) -> std::optional<fs::path> {
+	using namespace std::string_literals;
+
+	auto exec_path = ecsact::cli::detail::canon_argv0(argv[0]);
+	auto install_prefix = exec_path.parent_path().parent_path();
+	auto recipes_dir = install_prefix / "share" / "ecsact" / "recipes";
+
+	for(auto& entry : fs::directory_iterator(recipes_dir)) {
+		auto filename = entry.path().filename().replace_extension("").string();
+		const auto prefix = "ecsact_"s;
+
+		auto stripped_filename = filename.substr(prefix.size(), filename.size());
+
+		if(recipe_str == stripped_filename) {
+			auto path = fs::path(filename);
+			path.replace_extension(".ecsact-recipe-bundle");
+			return recipes_dir / path;
+		}
+	}
+	return std::nullopt;
+}
+
 auto ecsact::cli::detail::build_command( //
 	int         argc,
 	const char* argv[]
@@ -82,7 +107,15 @@ auto ecsact::cli::detail::build_command( //
 	auto recipe_composite = std::optional<build_recipe>{};
 	auto recipe_paths = args.at("--recipe").asStringList();
 	for(auto& recipe_path_str : recipe_paths) {
-		auto recipe_path = fs::path{recipe_path_str};
+		auto builtin_path = resolve_builtin_recipe(recipe_path_str, argv);
+
+		fs::path recipe_path;
+		if(builtin_path) {
+			recipe_path = *builtin_path;
+		} else {
+			recipe_path = fs::path{recipe_path_str};
+		}
+
 		if(std::ranges::find(allowed_recipe_extensions, recipe_path.extension()) ==
 			 allowed_recipe_extensions.end()) {
 			ecsact::cli::report_error(
@@ -168,8 +201,8 @@ auto ecsact::cli::detail::build_command( //
 			}
 			ecsact::cli::report_error(
 				"Build recipes do not resolve all imports. Make sure all imported "
-				"functions in provided recipes are also exported by another recipe. If "
-				"you would like to allow unresolved imports you may provide the "
+				"functions in provided recipes are also exported by another recipe. "
+				"If you would like to allow unresolved imports you may provide the "
 				"--allow-unresolved-imports flag to suppress this error."
 			);
 			return 1;

ecsact/cli/commands/config.cc

@@ -24,8 +24,9 @@ constexpr auto USAGE = R"(Ecsact Config Command
 		Available config keys:
 			install_dir       directory Ecsact SDK was installed to
 			include_dir       directory containing Ecsact headers
-			plugin_dir        directory containing built-in Ecsact codegen plugins
-			builtin_plugins   list of built-in Ecsact codegen plugins available.
+			plugin_dir        directory containing built-in Ecsact codegen plugins 
+			builtin_plugins   list of built-in Ecsact codegen plugins available
+			recipe_bundles    directory containing runtime recipe bundles
 
 )";
 
@@ -44,13 +45,21 @@ constexpr auto CANNOT_FIND_PLUGIN_DIR = R"(
 	https://github.com/ecsact-dev/ecsact_sdk/issues
 )";
 
+constexpr auto CANNOT_FIND_RECIPES_DIR = R"(
+[ERROR] Cannot find Ecsact recipes directory.
+	Make sure you're using a standard Ecsact SDK installation.
+	If you believe this is a mistake please file an issue at
+	https://github.com/ecsact-dev/ecsact_sdk/issues
+)";
+
 int ecsact::cli::detail::config_command(int argc, const char* argv[]) {
 	using namespace std::string_literals;
 
 	auto args = docopt::docopt(USAGE, {argv + 1, argv + argc});
 	auto exec_path = canon_argv0(argv[0]);
 	auto install_prefix = exec_path.parent_path().parent_path();
 	auto plugin_dir = install_prefix / "share" / "ecsact" / "plugins";
+	auto recipes_dir = install_prefix / "share" / "ecsact" / "recipes";
 	auto output = "{}"_json;
 
 	std::unordered_map<std::string, std::function<int()>> key_handlers{
@@ -117,6 +126,32 @@ int ecsact::cli::detail::config_command(int argc, const char* argv[]) {
 				return 0;
 			},
 		},
+		{
+			"recipe_bundles",
+			[&] {
+				if(fs::exists(recipes_dir)) {
+					std::vector<std::string> recipe_bundles;
+
+					for(auto& entry : fs::directory_iterator(recipes_dir)) {
+						auto filename =
+							entry.path().filename().replace_extension("").string();
+						const auto prefix = "ecsact_"s;
+
+						if(filename.starts_with(prefix)) {
+							recipe_bundles.emplace_back(
+								filename.substr(prefix.size(), filename.size())
+							);
+						}
+					}
+					output["recipes_dir"] = recipe_bundles;
+				} else {
+					std::cerr << CANNOT_FIND_RECIPES_DIR;
+					return 1;
+				}
+				return 0;
+			},
+		},
+
 	};
 
 	auto keys = args.at("<keys>").asStringList();