feat: init

node_modules/c12/dist/update.mjs

@@ -0,0 +1,80 @@
+import { resolveModulePath } from "exsolve";
+import "node:fs";
+import { mkdir, readFile, writeFile } from "node:fs/promises";
+import "node:url";
+import "node:os";
+import { join, normalize } from "pathe";
+import "jiti";
+import "rc9";
+import "defu";
+import "pkg-types";
+import { dirname, extname } from "node:path";
+
+//#region src/loader.ts
+const SUPPORTED_EXTENSIONS = Object.freeze([
+	".js",
+	".ts",
+	".mjs",
+	".cjs",
+	".mts",
+	".cts",
+	".json",
+	".jsonc",
+	".json5",
+	".yaml",
+	".yml",
+	".toml"
+]);
+
+//#endregion
+//#region src/update.ts
+const UPDATABLE_EXTS = [
+	".js",
+	".ts",
+	".mjs",
+	".cjs",
+	".mts",
+	".cts"
+];
+/**
+* @experimental Update a config file or create a new one.
+*/
+async function updateConfig(opts) {
+	const { parseModule } = await import("magicast");
+	let configFile = tryResolve(`./${opts.configFile}`, opts.cwd, SUPPORTED_EXTENSIONS) || tryResolve(`./.config/${opts.configFile}`, opts.cwd, SUPPORTED_EXTENSIONS) || tryResolve(`./.config/${opts.configFile.split(".")[0]}`, opts.cwd, SUPPORTED_EXTENSIONS);
+	let created = false;
+	if (!configFile) {
+		configFile = join(opts.cwd, opts.configFile + (opts.createExtension || ".ts"));
+		const createResult = await opts.onCreate?.({ configFile }) ?? true;
+		if (!createResult) throw new Error("Config file creation aborted.");
+		const content = typeof createResult === "string" ? createResult : `export default {}\n`;
+		await mkdir(dirname(configFile), { recursive: true });
+		await writeFile(configFile, content, "utf8");
+		created = true;
+	}
+	const ext = extname(configFile);
+	if (!UPDATABLE_EXTS.includes(ext)) throw new Error(`Unsupported config file extension: ${ext} (${configFile}) (supported: ${UPDATABLE_EXTS.join(", ")})`);
+	const _module = parseModule(await readFile(configFile, "utf8"), opts.magicast);
+	const defaultExport = _module.exports.default;
+	if (!defaultExport) throw new Error("Default export is missing in the config file!");
+	const configObj = defaultExport.$type === "function-call" ? defaultExport.$args[0] : defaultExport;
+	await opts.onUpdate?.(configObj);
+	await writeFile(configFile, _module.generate().code);
+	return {
+		configFile,
+		created
+	};
+}
+function tryResolve(path, cwd, extensions) {
+	const res = resolveModulePath(path, {
+		try: true,
+		from: join(cwd, "/"),
+		extensions,
+		suffixes: ["", "/index"],
+		cache: false
+	});
+	return res ? normalize(res) : void 0;
+}
+
+//#endregion
+export { updateConfig };