siegel/lib/core/utils/parse_cli_args.js

Web application development ecosystem

function parseCommandLineArgs(args) {
    const CLIParamsValues = {};
    function addValueToCLIParams(key, value) {
        if (CLIParamsValues[key]) {
            CLIParamsValues[key].value = value;
        }
        else {
            CLIParamsValues[key] = {
                value,
                resolved: false
            };
            unresolvedParamsCount++;
        }
    }
    let commandValue;
    let unresolvedParamsCount = 0;
    for (let i = 0, l = args.length, prevCLIParam; i < l; i++) {
        const arg = args[i];
        const isValue = arg[0] != '-';
        if (isValue || arg[1] == '-') {
            if (isValue) {
                prevCLIParam
                    ? addValueToCLIParams(prevCLIParam, arg)
                    : (commandValue = arg);
            }
            else {
                addValueToCLIParams(arg, true);
                prevCLIParam = arg;
            }
        }
        else if (arg.length > 2) {
            arg.split('')
                .forEach((flag, index) => (index && addValueToCLIParams(`-${flag}`, true)));
        }
        else {
            addValueToCLIParams(arg, true);
            prevCLIParam = arg;
        }
    }
    return { CLIParamsValues, commandValue, unresolvedParamsCount };
}
export default parseCommandLineArgs;