Re-write webpack alias into relative imports

rewrite-webpack-alias.js

const fs = require('fs')
const { cwd } = require('node:process')

const path = require('path')

const readline = require('readline')

const {
    glob
} = require('glob')

/**
 * Should be run from the directory that files should be resolved to
 * i.e. from wherever the alias currently points
 * @param {string} alias An alias to replace with a relative path to the CWD
 */
async function main (alias) {
    const jsfiles = await glob('**/*.{js,vue}')

    const regExp = new RegExp(`from '${alias}/(.*)'`) // assumed single quotes

    for (const file of jsfiles) {
        const readFile = readline.createInterface({
            input: fs.createReadStream(file),
            output: fs.createWriteStream(`${file}.new`),
            terminal: false
        })

        const dirname = path.dirname(file)

        readFile
            .on('line', transform)
            .on('close', function () {
                fs.rename(`${file}.new`, `${file}`, (err) => {
                    if (err) throw err
                    console.info(`Updated ${file} successfully!`)
                })
            })

        function transform (line) {
            const matches = line.match(regExp)
            if (matches) {
                let relative = path.relative(dirname, path.join(cwd(), matches[1])) || './'
                if (!relative.includes('../')) {
                    relative = `./${relative}`
                }

                const newLine = line.replace(regExp, `from '${relative}'`)

                this.output.write(`${newLine}\n`)
            } else {
                this.output.write(`${line}\n`)
            }
        }
    }
}

main('@core')