// const commander = require('commander'); // (normal include)
const commander = require('../'); // include commander in git clone of commander repo
const program = new commander.Command();
function errorColor(str) {
// Add ANSI escape codes to display text in red.
return `\x1b[31m${str}\x1b[0m`;
}
program
.configureOutput({
// Visibly override write routines as example!
writeOut: (str) => process.stdout.write(`[OUT] ${str}`),
writeErr: (str) => process.stdout.write(`[ERR] ${str}`),
// Output errors in red.
outputError: (str, write) => write(errorColor(str))
});
program
.version('1.2.3')
.option('-c, --compress')
.command('sub-command');
program.parse();
// Try the following:
// node configure-output.js --version
// node configure-output.js --unknown
// node configure-output.js --help
// node configure-output.js
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