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2 years ago
'use strict';
const match = (array, value) =>
array.some(x => (x instanceof RegExp ? x.test(value) : x === value));
const dargs = (object, options) => {
const arguments_ = [];
let extraArguments = [];
let separatedArguments = [];
options = {
useEquals: true,
shortFlag: true,
...options
};
const makeArguments = (key, value) => {
const prefix = options.shortFlag && key.length === 1 ? '-' : '--';
const theKey = (options.allowCamelCase ?
key :
key.replace(/[A-Z]/g, '-$&').toLowerCase());
key = prefix + theKey;
if (options.useEquals) {
arguments_.push(key + (value ? `=${value}` : ''));
} else {
arguments_.push(key);
if (value) {
arguments_.push(value);
}
}
};
const makeAliasArg = (key, value) => {
arguments_.push(`-${key}`);
if (value) {
arguments_.push(value);
}
};
for (let [key, value] of Object.entries(object)) {
let pushArguments = makeArguments;
if (Array.isArray(options.excludes) && match(options.excludes, key)) {
continue;
}
if (Array.isArray(options.includes) && !match(options.includes, key)) {
continue;
}
if (typeof options.aliases === 'object' && options.aliases[key]) {
key = options.aliases[key];
pushArguments = makeAliasArg;
}
if (key === '--') {
if (!Array.isArray(value)) {
throw new TypeError(
`Expected key \`--\` to be Array, got ${typeof value}`
);
}
separatedArguments = value;
continue;
}
if (key === '_') {
if (!Array.isArray(value)) {
throw new TypeError(
`Expected key \`_\` to be Array, got ${typeof value}`
);
}
extraArguments = value;
continue;
}
if (value === true) {
pushArguments(key, '');
}
if (value === false && !options.ignoreFalse) {
pushArguments(`no-${key}`);
}
if (typeof value === 'string') {
pushArguments(key, value);
}
if (typeof value === 'number' && !Number.isNaN(value)) {
pushArguments(key, String(value));
}
if (Array.isArray(value)) {
for (const arrayValue of value) {
pushArguments(key, arrayValue);
}
}
}
for (const argument of extraArguments) {
arguments_.push(String(argument));
}
if (separatedArguments.length > 0) {
arguments_.push('--');
}
for (const argument of separatedArguments) {
arguments_.push(String(argument));
}
return arguments_;
};
module.exports = dargs;