saksh-pc2/check-packages.js

Check required packages in a JavaScript file

const fs = require("fs");

function checkPackages(filePath) {
    let code;
    try {
        code = fs.readFileSync(filePath, "utf-8");
    } catch (err) {
        console.error(`❌ Error reading file ${filePath}: ${err.message}`);
        process.exit(1);
    }

    const requireRegex = /require\s*\(\s*['"]([^'"]+)['"]\s*\)/g;
    const importRegex = /import\s+(?:[\w*\s{},]+\s+from\s+)?['"]([^'"]+)['"]/g;

    const packages = new Set();
    let match;

    while ((match = requireRegex.exec(code)) !== null) {
        const moduleName = match[1];
        if (!moduleName.startsWith(".") && !moduleName.startsWith("/")) {
            packages.add(moduleName);
        }
    }

    while ((match = importRegex.exec(code)) !== null) {
        const moduleName = match[1];
        if (!moduleName.startsWith(".") && !moduleName.startsWith("/")) {
            packages.add(moduleName);
        }
    }

    return Array.from(packages);
}

module.exports = checkPackages;