node-tidy/dist/esm/utils/InstallMissingPackages.js

A CLI tool to find and remove unused NPM packages and Install Missing packages in your Node.js projects.

import fs from "fs";
import { globSync } from "glob";
import getDependencies from "./getDependencies";
import { builtinModules } from "module";
async function findMissingPackages() {
    console.log("Scanning for missing packages...");
    const files = globSync("**/*.{js,jsx,ts,tsx}", {
        ignore: ["node_modules/**", "dist/**"],
    });
    const usedPackages = new Set();
    const importRegex = /\b(?:import(?:["'\s]*[\w*{}\n, ]+from\s*)?["']([^"']+)["']|require\(["']([^"']+)["']\))/g;
    for (const file of files) {
        const content = fs.readFileSync(file, "utf8");
        let match;
        while ((match = importRegex.exec(content)) !== null) {
            const packageName = (match[1] || match[2] || "").split("/")[0]; // Extract the package name
            if (packageName && !packageName.startsWith(".")) {
                usedPackages.add(packageName);
            }
        }
    }
    const installedPackages = new Set([
        ...getDependencies().dependencies,
        ...getDependencies().devDependencies,
    ]);
    const nodeBuiltinModules = new Set(builtinModules);
    // Find packages used in code but not installed
    const missingPackages = Array.from(usedPackages).filter((pkg) => !installedPackages.has(pkg) && !nodeBuiltinModules.has(pkg));
    return missingPackages;
}
export default findMissingPackages;