function parseLogConfiguration()

in apps/mountebank-mock/mountebank-source/src/cli/cli.js [317:358]

• 35 lines of code
• 4 McCabe index (conditional complexity)

function parseLogConfiguration (args) {
    // Not defaulted in yargs so we can test yargs value without defaulting interfering.
    // This is needed for backwards compatibility with older CLI options.
    const defaultConfig = {
        level: 'info',
        transports: {
            console: {
                colorize: true,
                format: '%level: %message'
            },
            file: {
                path: 'mb.log',
                format: 'json'
            }
        }
    };

    if (typeof args.log === 'string') {
        try {
            args.log = JSON.parse(args.log);
        }
        catch (ex) {
            console.error(`Cannot parse --log as JSON: ${ex}`);
            args.log = defaultConfig;
        }
    }
    else {
        // Backwards compatibility with older CLI options. Using raw process.argv
        // to ensure user actually passed the parameter, bypassing yargs defaulting
        args.log = defaultConfig;
        args.log.level = argvOrDefaultFor('loglevel');
        args.log.transports.file.path = argvOrDefaultFor('logfile');
        if (argIsPassedOnCLI('nologfile')) {
            delete args.log.transports.file;
        }
    }

    // Remove the old values to not confuse users retrieving configuration later
    delete args.loglevel;
    delete args.logfile;
    delete args.nologfile;
}