lua_to_cpls/src/converter.js

A tool capable of compiling a subset of Lua to Please lang compiled files

#!/usr/bin/env node
// @ts-check
/**
 * @description An executable to convert Lua to compiled please
 */

'use strict';

const {convertToCompiledPlease} = require('./parser.js');
const fs = require('fs');
const {program} = require('commander');
const {version} = require('../package.json');
const path = require('path');

program
    .version(version)
    .arguments('<origin>')
    .option(
        '-o, --out <destination>', 'Path for output file. If it isn\'t ' +
        'specified the path of the origin file will be used,' +
        'changing the extension to .cpls',
    )
    .description(
        'Convert a lua file to compiled please',
        {
          origin: 'The path of the file to convert',
        },
    )
    .action((origin, options) => {
      try {
        const code = fs.readFileSync(origin, 'utf-8');
        let translation = convertToCompiledPlease(code);
        if (options.out == undefined) {
            options.out = origin.match(/^[^\.]*/)[0] + '.cpls';
        }
        fs.writeFileSync(options.out, JSON.stringify(translation, undefined, 2));
      } catch (err) {
        console.log('There was an error: ' + err.message);
      }
    });

program.parse(process.argv);