@netlify/build/lib/install/functions.js

Netlify build module

import { dirname } from 'path';
import readdirp from 'readdirp';
import { logInstallFunctionDependencies } from '../log/messages/install.js';
import { installDependencies } from './main.js';
// Install dependencies of Netlify Functions
export const installFunctionDependencies = async function (functionsSrc, isLocal) {
    const packagePaths = await getPackagePaths(functionsSrc);
    if (packagePaths.length === 0) {
        return;
    }
    logInstallFunctionDependencies();
    const packageRoots = packagePaths.map(getPackageRoot);
    await Promise.all(packageRoots.map((packageRoot) => installDependencies({ packageRoot, isLocal })));
};
const getPackagePaths = function (functionsSrc) {
    return readdirp.promise(functionsSrc, { depth: 1, fileFilter: 'package.json' });
};
const getPackageRoot = function ({ fullPath }) {
    return dirname(fullPath);
};