|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240 |
-
-
-
- function cliargs(args, opts) {
- if (!opts) opts = {};
-
- var flags = { bools : {}, strings : {}, unknownFn: null };
-
- if (typeof opts['unknown'] === 'function') {
- flags.unknownFn = opts['unknown'];
- }
-
- if (typeof opts['boolean'] === 'boolean' && opts['boolean']) {
- flags.allBools = true;
- } else {
- [].concat(opts['boolean']).filter(Boolean).forEach(function (key) {
- flags.bools[key] = true;
- });
- }
-
- var aliases = {};
- Object.keys(opts.alias || {}).forEach(function (key) {
- aliases[key] = [].concat(opts.alias[key]);
- aliases[key].forEach(function (x) {
- aliases[x] = [key].concat(aliases[key].filter(function (y) {
- return x !== y;
- }));
- });
- });
-
- [].concat(opts.string).filter(Boolean).forEach(function (key) {
- flags.strings[key] = true;
- if (aliases[key]) {
- flags.strings[aliases[key]] = true;
- }
- });
-
- var defaults = opts['default'] || {};
-
- var argv = { _ : [] };
- Object.keys(flags.bools).forEach(function (key) {
- setArg(key, defaults[key] === undefined ? false : defaults[key]);
- });
-
- var notFlags = [];
-
- if (args.indexOf('--') !== -1) {
- notFlags = args.slice(args.indexOf('--')+1);
- args = args.slice(0, args.indexOf('--'));
- }
-
- function argDefined(key, arg) {
- return (flags.allBools && /^--[^=]+$/.test(arg)) ||
- flags.strings[key] || flags.bools[key] || aliases[key];
- }
-
- function setArg (key, val, arg) {
- if (arg && flags.unknownFn && !argDefined(key, arg)) {
- if (flags.unknownFn(arg) === false) return;
- }
-
- var value = !flags.strings[key] && isNumber(val)
- ? Number(val) : val
- ;
- setKey(argv, key.split('.'), value);
-
- (aliases[key] || []).forEach(function (x) {
- setKey(argv, x.split('.'), value);
- });
- }
-
- function setKey (obj, keys, value) {
- var o = obj;
- keys.slice(0,-1).forEach(function (key) {
- if (o[key] === undefined) o[key] = {};
- o = o[key];
- });
-
- var key = keys[keys.length - 1];
- if (o[key] === undefined || flags.bools[key] || typeof o[key] === 'boolean') {
- o[key] = value;
- }
- else if (Array.isArray(o[key])) {
- o[key].push(value);
- }
- else {
- o[key] = [ o[key], value ];
- }
- }
-
- function aliasIsBoolean(key) {
- return aliases[key].some(function (x) {
- return flags.bools[x];
- });
- }
-
- for (var i = 0; i < args.length; i++) {
- var arg = args[i];
-
- if (/^--.+=/.test(arg)) {
-
-
-
- var m = arg.match(/^--([^=]+)=([\s\S]*)$/);
- var key = m[1];
- var value = m[2];
- if (flags.bools[key]) {
- value = value !== 'false';
- }
- setArg(key, value, arg);
- }
- else if (/^--no-.+/.test(arg)) {
- var key = arg.match(/^--no-(.+)/)[1];
- setArg(key, false, arg);
- }
- else if (/^--.+/.test(arg)) {
- var key = arg.match(/^--(.+)/)[1];
- var next = args[i + 1];
- if (next !== undefined && !/^-/.test(next)
- && !flags.bools[key]
- && !flags.allBools
- && (aliases[key] ? !aliasIsBoolean(key) : true)) {
- setArg(key, next, arg);
- i++;
- }
- else if (/^(true|false)$/.test(next)) {
- setArg(key, next === 'true', arg);
- i++;
- }
- else {
- setArg(key, flags.strings[key] ? '' : true, arg);
- }
- }
- else if (/^-[^-]+/.test(arg)) {
- var letters = arg.slice(1,-1).split('');
-
- var broken = false;
- for (var j = 0; j < letters.length; j++) {
- var next = arg.slice(j+2);
-
- if (next === '-') {
- setArg(letters[j], next, arg)
- continue;
- }
-
- if (/[A-Za-z]/.test(letters[j]) && /=/.test(next)) {
- setArg(letters[j], next.split('=')[1], arg);
- broken = true;
- break;
- }
-
- if (/[A-Za-z]/.test(letters[j])
- && /-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) {
- setArg(letters[j], next, arg);
- broken = true;
- break;
- }
-
- if (letters[j+1] && letters[j+1].match(/\W/)) {
- setArg(letters[j], arg.slice(j+2), arg);
- broken = true;
- break;
- }
- else {
- setArg(letters[j], flags.strings[letters[j]] ? '' : true, arg);
- }
- }
-
- var key = arg.slice(-1)[0];
- if (!broken && key !== '-') {
- if (args[i+1] && !/^(-|--)[^-]/.test(args[i+1])
- && !flags.bools[key]
- && (aliases[key] ? !aliasIsBoolean(key) : true)) {
- setArg(key, args[i+1], arg);
- i++;
- }
- else if (args[i+1] && /true|false/.test(args[i+1])) {
- setArg(key, args[i+1] === 'true', arg);
- i++;
- }
- else {
- setArg(key, flags.strings[key] ? '' : true, arg);
- }
- }
- }
- else {
- if (!flags.unknownFn || flags.unknownFn(arg) !== false) {
- argv._.push(
- flags.strings['_'] || !isNumber(arg) ? arg : Number(arg)
- );
- }
- if (opts.stopEarly) {
- argv._.push.apply(argv._, args.slice(i + 1));
- break;
- }
- }
- }
-
- Object.keys(defaults).forEach(function (key) {
- if (!hasKey(argv, key.split('.'))) {
- setKey(argv, key.split('.'), defaults[key]);
-
- (aliases[key] || []).forEach(function (x) {
- setKey(argv, x.split('.'), defaults[key]);
- });
- }
- });
-
- if (opts['--']) {
- argv['--'] = new Array();
- notFlags.forEach(function(key) {
- argv['--'].push(key);
- });
- }
- else {
- notFlags.forEach(function(key) {
- argv._.push(key);
- });
- }
-
- return argv;
- };
-
- function hasKey (obj, keys) {
- var o = obj;
- keys.slice(0,-1).forEach(function (key) {
- o = (o[key] || {});
- });
-
- var key = keys[keys.length - 1];
- return key in o;
- }
-
- function isNumber (x) {
- if (typeof x === 'number') return true;
- if (/^0x[0-9a-f]+$/i.test(x)) return true;
- return /^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x);
- }
-
- module.exports = cliargs;
|