1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
'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;
}
function defineGetter(obj, key, getter) {
Object.defineProperty(obj, key, {
configurable: true,
enumerable: true,
get: getter,
});
}
function lookupGetter(obj, key) {
const desc = Object.getOwnPropertyDescriptor(obj, key);
if (typeof desc !== 'undefined') {
return desc.get;
}
}
/* 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') {
defineGetter(Argv, key, lookupGetter(inst, key));
} else if (typeof inst[key] === 'function') {
Argv[key] = inst[key].bind(inst);
} else {
defineGetter(Argv, '$0', () => inst.$0);
defineGetter(Argv, 'parsed', () => inst.parsed);
}
});
}
|
