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'use strict';
// classic singleton yargs API, to use yargs
// without running as a singleton do:
// require('yargs/yargs')(process.argv.slice(2))
const {Yargs, processArgv} = require('./build/index.cjs');
Argv(processArgv.hideBin(process.argv));
module.exports = Argv;
function Argv(processArgs, cwd) {
const argv = Yargs(processArgs, cwd, require);
singletonify(argv);
// TODO(bcoe): warn if argv.parse() or argv.argv is used directly.
return argv;
}
/* Hack an instance of Argv with process.argv into Argv
so people can do
require('yargs')(['--beeble=1','-z','zizzle']).argv
to parse a list of args and
require('yargs').argv
to get a parsed version of process.argv.
*/
function singletonify(inst) {
[
...Object.keys(inst),
...Object.getOwnPropertyNames(inst.constructor.prototype),
].forEach(key => {
if (key === 'argv') {
Argv.__defineGetter__(key, inst.__lookupGetter__(key));
} else if (typeof inst[key] === 'function') {
Argv[key] = inst[key].bind(inst);
} else {
Argv.__defineGetter__('$0', () => {
return inst.$0;
});
Argv.__defineGetter__('parsed', () => {
return inst.parsed;
});
}
});
}
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