one/dist/esm/babel-preset/index.mjs

One is a React framework for web, iOS, and Android apps.

import path from "node:path";
import { createRequire } from "node:module";
import mm from "micromatch";
import tsconfigPaths from "tsconfig-paths";
import { pickOnePublicEnv } from "../native/env.mjs";
import { API_ROUTE_GLOB_PATTERN, ROUTE_NATIVE_EXCLUSION_GLOB_PATTERNS } from "../router/glob-patterns.mjs";

function toPosixRelativePath(relativePath) {
	return path.sep === "\\" ? relativePath.replace(/\\/g, "/") : relativePath;
}
function oneBabelPreset(api, options = {}) {
	const hasViteInjectedOnePlugins = typeof api?.caller === "function" ? api.caller((caller) => !!caller?.oneViteMetroBabelConfig) : false;
	const isVxrnCompiler = typeof api?.caller === "function" ? api.caller((caller) => caller?.name === "vxrn") : false;
	if (isVxrnCompiler) {
		return {
			presets: [],
			plugins: []
		};
	}
	if (!api?.caller && typeof api?.cache === "function") {
		api.cache(true);
	}
	const projectRoot = path.resolve(options.projectRoot ?? (typeof api?.cwd === "function" ? api.cwd() : process.cwd()));
	const require2 = createRequire(projectRoot + "/");
	let reactNativePresetPath;
	try {
		reactNativePresetPath = require2.resolve("@react-native/babel-preset");
	} catch {
		throw new Error(`[one/babel-preset] Could not resolve '@react-native/babel-preset' from ${projectRoot}. Install it as a project dependency (it ships with every React Native app template).`);
	}
	return {
		presets: [{ plugins: [createRequire(require2.resolve("one/package.json")).resolve("@babel/plugin-transform-export-namespace-from")] }, require2(reactNativePresetPath)],
		plugins: hasViteInjectedOnePlugins ? [] : buildOneBabelPlugins({
			projectRoot,
			relativeRouterRoot: options.routerRoot ?? "app",
			ignoredRouteFiles: options.ignoredRouteFiles,
			linking: options.linking,
			setupFile: options.setupFile,
			includeImportMetaEnv: options.includeImportMetaEnv
		})
	};
}
function buildOneBabelPlugins({ projectRoot, relativeRouterRoot, ignoredRouteFiles, linking, setupFile, includeImportMetaEnv = true }) {
	const tsconfig = tsconfigPaths.loadConfig(projectRoot);
	if (tsconfig.resultType === "failed") {
		throw new Error("[one/babel-preset] tsconfig.json paths could not be loaded");
	}
	const require2 = createRequire(projectRoot + "/");
	const metroEntryPath = require2.resolve("one/metro-entry", { paths: [projectRoot] });
	const setupFileRelativeToMetroEntry = (() => {
		if (!setupFile) return void 0;
		const file = typeof setupFile === "string" ? setupFile : setupFile.native || setupFile.ios || setupFile.android;
		if (!file) return void 0;
		return toPosixRelativePath(path.relative(path.dirname(metroEntryPath), path.join(projectRoot, file)));
	})();
	return [
		...includeImportMetaEnv ? [["@vxrn/vite-plugin-metro/babel-plugins/import-meta-env-plugin", { env: buildStandaloneImportMetaEnv() }]] : [],
		"one/babel-plugin-environment-guard",
		["one/babel-plugin-remove-server-code", { routerRoot: relativeRouterRoot }],
		["babel-plugin-module-resolver", { alias: Object.fromEntries(Object.entries(tsconfig.paths).map(([k, v]) => {
			const key = k.endsWith("/*") ? k.replace(/\/\*$/, "") : `${k}$`;
			let value = v[0].replace(/\/\*$/, "");
			if (!value.startsWith("./")) value = `./${value}`;
			return [key, value];
		})) }],
		["one/babel-plugin-one-router-metro", {
			ONE_ROUTER_APP_ROOT_RELATIVE_TO_ENTRY: toPosixRelativePath(path.relative(path.dirname(metroEntryPath), path.join(projectRoot, relativeRouterRoot))),
			ONE_ROUTER_ROOT_FOLDER_NAME: relativeRouterRoot,
			ONE_ROUTER_REQUIRE_CONTEXT_REGEX_STRING: buildRouterRequireContextRegexString(ignoredRouteFiles),
			ONE_ROUTER_LINKING_CONFIG: linking,
			ONE_SETUP_FILE_NATIVE: setupFileRelativeToMetroEntry
		}],
		"one/babel-plugin-inline-one-server-url"
	];
}
function buildStandaloneImportMetaEnv() {
	const isProduction = process.env.NODE_ENV !== "development";
	const expoPlatform = process.env.ONE_PLATFORM === "ios" || process.env.ONE_PLATFORM === "android" ? process.env.ONE_PLATFORM : process.env.EXPO_OS === "ios" || process.env.EXPO_OS === "android" ? process.env.EXPO_OS : void 0;
	const env = {
		...pickOnePublicEnv(process.env),
		MODE: isProduction ? "production" : "development",
		BASE_URL: "/",
		PROD: isProduction,
		DEV: !isProduction,
		SSR: false,
		ONE_PLATFORM: process.env.ONE_PLATFORM ?? "web",
		...expoPlatform ? { EXPO_OS: expoPlatform } : {}
	};
	for (const [key, value] of Object.entries(process.env)) {
		if (key.startsWith("ONE_") || key.startsWith("VITE_")) {
			env[key] = value;
		}
	}
	return env;
}
function normalizeReSource(source) {
	return source.replace(/\[\\\\\/\]/g, "\\/").replace(/\[\^\\\\\/\]/g, "[^/]");
}
function buildRouterRequireContextRegexString(ignoredRouteFiles) {
	const excludeRes = [
		...(ignoredRouteFiles || []).map((pattern) => mm.makeRe(pattern)),
		...ROUTE_NATIVE_EXCLUSION_GLOB_PATTERNS.map((pattern) => mm.makeRe(pattern)),
		mm.makeRe(API_ROUTE_GLOB_PATTERN)
	];
	const mustStartWith = String.raw`^(?:(?:^|\/|(?:(?:(?!(?:^|\/)\.).)*?)\/)(?!\.)(?=.)[^/]*?`;
	const mustEndWith = String.raw`)$`;
	const negatives = excludeRes.map((re, i) => {
		const reSource = normalizeReSource(re.source);
		if (!(reSource.startsWith(mustStartWith) && reSource.endsWith(mustEndWith))) {
			const pattern = ignoredRouteFiles?.[i];
			throw new Error(pattern ? `[one/metro] ignoredRouteFile pattern "${pattern}" is not supported. We cannot process the corresponding regex "${reSource}" for now.` : `Unsupported regex "${reSource}" in "ignoredRouteFiles".`);
		}
		const inner = reSource.slice(mustStartWith.length, reSource.length - mustEndWith.length);
		return String.raw`(?:.*${inner})`;
	});
	return String.raw`^(?:\.\/)(?!${negatives.join("|")}$).*\.tsx?$`;
}

export { buildOneBabelPlugins, buildRouterRequireContextRegexString, oneBabelPreset as default };
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