@sap/cds-dk/lib/mtx/util/dependencies.js

Command line client and development toolkit for the SAP Cloud Application Programming Model

const os = require('os');
const { execFileSync } = require('child_process');

const cds = require('../../cds');

const DEBUG = cds.debug('cli');

let modulesDir;

function globalModulesDir() {
    if (!modulesDir) {
        modulesDir = execFileSync('npm', ['root', '-g'], {
            encoding: 'utf8',
            shell: os.platform() === 'win32',
            stdio: ['ignore', 'pipe', 'ignore']
        }).trim();
    }
    return modulesDir;
}

function requireGlobal(packageId) {
    try {
        const packagePath = require.resolve(packageId, { paths: [globalModulesDir()] });
        return require(packagePath);
    } catch (error) {
        // Ignore error.
        DEBUG?.(`Failed to find module '${packageId}' in ${globalModulesDir()}:`, error);
    }
}

function resetCache() {
    modulesDir = undefined;
}

module.exports = {
    requireGlobal,
    resetCache
}