identify-monorepo-root/build/identifyMonorepoRoot.js

Find the root directory of a monorepo from anywhere inside it.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.identifyMonorepoRoot = void 0;
const fs = __importStar(require("node:fs"));
const path = __importStar(require("node:path"));
const LOCKFILE_NAMES = ["pnpm-lock.yaml", "yarn.lock", "package-lock.json"];
const MONOREPO_MANIFEST_KEYS = [
    "packageManager",
    "workspaces",
    "private",
    "pnpm",
    "turbo",
];
const isFilesystemRoot = (directory) => {
    const parentDirectory = path.dirname(directory);
    return directory === parentDirectory;
};
const readPackageManifest = (directory) => {
    const packageJsonPath = path.join(directory, "package.json");
    if (!fs.existsSync(packageJsonPath)) {
        return null;
    }
    try {
        return JSON.parse(fs.readFileSync(packageJsonPath, "utf8"));
    }
    catch {
        return null;
    }
};
const hasLockfile = (directory) => LOCKFILE_NAMES.some((lockfileName) => fs.existsSync(path.join(directory, lockfileName)));
const looksLikeMonorepoRoot = (directory) => {
    if (hasLockfile(directory)) {
        return true;
    }
    const manifest = readPackageManifest(directory);
    if (!manifest) {
        return false;
    }
    if (manifest.workspaces) {
        return true;
    }
    if (manifest.packageManager || manifest.pnpm || manifest.turbo) {
        return true;
    }
    return Boolean(manifest.private && MONOREPO_MANIFEST_KEYS.some((key) => key in manifest));
};
const identifyMonorepoRoot = (startDirectory = process.cwd()) => {
    let currentDirectory = path.resolve(startDirectory);
    let lastManifestDirectory = null;
    while (true) {
        if (looksLikeMonorepoRoot(currentDirectory)) {
            return currentDirectory;
        }
        if (readPackageManifest(currentDirectory)) {
            lastManifestDirectory = currentDirectory;
        }
        if (isFilesystemRoot(currentDirectory)) {
            return lastManifestDirectory;
        }
        currentDirectory = path.dirname(currentDirectory);
    }
};
exports.identifyMonorepoRoot = identifyMonorepoRoot;