aureooms/rejuvenate

import path from 'node:path';
import {createRequire} from 'node:module';

import addLeadingDotIfNecessary from './addLeadingDotIfNecessary.js';

const require = createRequire(import.meta.url);

const partialRequireResolve = (from, to) => {
    const dir = path.dirname(from);
    let result = to;
    try {
        result = require.resolve(to, {paths: [dir]});
    } catch (error) {
        if (error.code !== 'MODULE_NOT_FOUND') throw error;
    }

    if (/^(@[^/]+\/|)[^./]+$/.test(to)) return to;
    if (/\/node_modules\//.test(result)) {
        return result.split('/node_modules/').pop();
    }

    return path.isAbsolute(to)
        ? result
        : addLeadingDotIfNecessary(path.relative(dir, result));
};

export default partialRequireResolve;