@nx/expo/plugins/with-nx-metro.js

The Expo Plugin for Nx contains executors and generators for managing and developing an expo application within your workspace. For example, you can directly build for different target platforms as well as generate projects and publish your code.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.withNxMetro = withNxMetro;
const devkit_1 = require("@nx/devkit");
const node_fs_1 = require("node:fs");
const path_1 = require("path");
// Cache for metro-config module
let metroConfig = null;
/**
 * Lazily require metro-config to handle cases where it might not be installed
 */
function getMetroConfig() {
    if (!metroConfig) {
        try {
            metroConfig = require('metro-config');
        }
        catch (error) {
            throw new Error('metro-config is required but not installed. Please install metro-config >= 0.82.0');
        }
    }
    return metroConfig;
}
const metro_resolver_1 = require("./metro-resolver");
async function withNxMetro(userConfig, opts = {}) {
    const extensions = ['', 'ts', 'tsx', 'js', 'jsx', 'json'];
    if (opts.debug)
        process.env.NX_REACT_NATIVE_DEBUG = 'true';
    if (opts.extensions)
        extensions.push(...opts.extensions);
    let watchFolders = (0, node_fs_1.readdirSync)(devkit_1.workspaceRoot)
        .filter((fileName) => !['dist', 'e2e'].includes(fileName) && !fileName.startsWith('.'))
        .map((fileName) => (0, path_1.join)(devkit_1.workspaceRoot, fileName))
        .filter((filePath) => (0, node_fs_1.statSync)(filePath).isDirectory());
    if (opts.watchFolders?.length) {
        watchFolders = watchFolders.concat(opts.watchFolders);
    }
    watchFolders = [...new Set(watchFolders)].filter((folder) => (0, node_fs_1.existsSync)(folder));
    const nxConfig = {
        resolver: {
            resolveRequest: (0, metro_resolver_1.getResolveRequest)(extensions, opts.exportsConditionNames, opts.mainFields),
            nodeModulesPaths: [(0, path_1.join)(devkit_1.workspaceRoot, 'node_modules')],
        },
        watchFolders,
    };
    const { mergeConfig } = getMetroConfig();
    return mergeConfig(userConfig, nxConfig);
}