@alu0100901214/espree-logging-module/bin/exec.js

Es un programa para parsear un fragmento de código.

#!/usr/bin/env node
const {program} = require('commander');
const {version, description} = require('../package.json');
const fs = require('fs');
const Regex = require('regex');

const addlogging = require('../src/logging-espree');

let pattern = "";

program.version(version);
program.description(description);
program.usage('[options] <filename> [...]');
program.option('-o, --output <filename>', 'write the output on a filename');
program.option('-p, --pattern <pattern>', 'indicates the pattern of the function you want to add a log');


let inputFilename
if(process.argv.length > 2){
    program.parse(process.argv);
    inputFilename = program.args.shift();
}

const options = program.opts();

let regexPattern = null;

if (options.pattern){
    pattern = options.pattern;
    console.log(pattern);
    regexPattern = new Regex(pattern);
}


if(!options.pattern)
    check = false;


if(inputFilename != null){
    try{
        if(inputFilename){
            fs.readFile(inputFilename, 'utf8', (err,input)=>{
                if(err) throw `Error reading '${inputFilename}': ${err}`;
                const output = addlogging.addLogging(input, regexPattern);
                console.error(`input:\n${input}\n---`);
                if(options.output){
                    fs.writeFile(options.output, output, err => {
                        if (err) throw `Cant write to '${options.output}': ${err}`;
                        console.log(`Output in file '${options.output}'`);
                    })
                }else{
                    console.error(`output:\n`);
                    console.log(output);
                }
            })
        }else program.help()
    }catch(e){
        console.error('Hubieron errores: ${e}');
    }
}