feat: improve alias options (#1)

Author: ivodolenc

src/index.ts

@@ -29,20 +29,21 @@ export function createArgs<T = Defaults>({
     _: [],
   }
 
-  const setArg = (arg: string, index: number) => {
+  function _setArg(arg: string, index: number) {
     let value: boolean | string = true
     const argKey = isFlag(arg) ? arg.slice(2) : arg.slice(1)
     const argValue = argv[index + 1]
 
     if (argValue && !argValue.startsWith('-')) value = argValue
 
     if (argKey && !argKey.includes('=')) {
-      if (alias?.[argKey]) {
-        const _aliasKey = alias[argKey]
-
-        if (isString(_aliasKey)) args[_aliasKey] = value
-        if (isArray(_aliasKey)) {
-          for (const key of _aliasKey) args[key] = value
+      if (alias) {
+        for (const [aliasKey, aliasValue] of Object.entries(alias)) {
+          if (aliasKey.includes(argKey) || aliasValue.includes(argKey)) {
+            args[aliasKey] = value
+            if (isString(aliasValue)) args[aliasValue] = value
+            if (isArray(aliasValue)) for (const v of aliasValue) args[v] = value
+          }
         }
       }
 
@@ -52,9 +53,9 @@ export function createArgs<T = Defaults>({
 
   for (const [index, arg] of argv.entries()) {
     // flags '--'
-    if (isFlag(arg)) setArg(arg, index)
+    if (isFlag(arg)) _setArg(arg, index)
     // aliases '-'
-    else if (isAlias(arg)) setArg(arg, index)
+    else if (isAlias(arg)) _setArg(arg, index)
     // unprefixed values
     else {
       const _arg = argv[index - 1]

src/types/index.ts

@@ -1,6 +1,3 @@
-// Auto-generated
-export * from '../index.js'
-
 export type Defaults = Record<string, unknown>
 
 export type Args<T = Defaults> = T & {
@@ -11,3 +8,6 @@ export interface Options {
   argv?: string[]
   alias?: Record<string, string | string[]>
 }
+
+// Auto-generated
+export * from '../index.js'

test/mix.test.ts

@@ -10,13 +10,11 @@ test('args-mix', () => {
   }
 
   // $ hello world --foo bar -baz -cli demo --fuz
-  const args = createArgs<Args>({
+  const argsMix = createArgs<Args>({
     argv: ['hello', 'world', '--foo', 'bar', '-baz', '-cli', 'demo', '--fuz'],
   })
 
-  console.log(args)
-
-  expect(args).toStrictEqual({
+  expect(argsMix).toStrictEqual({
     _: ['hello', 'world'],
     foo: 'bar',
     baz: true,

test/options.test.ts

@@ -11,16 +11,16 @@ test('args-options', () => {
     f?: boolean
   }
 
-  // $ --a value --d
-  const argsFlags = createArgs<Args>({
-    argv: ['--a', 'value', '--d'],
+  // $ --c value --e
+  const argsOptions = createArgs<Args>({
+    argv: ['--c', 'value', '--e'],
     alias: {
       a: ['b', 'c'],
       d: ['e', 'f'],
     },
   })
 
-  expect(argsFlags).toStrictEqual({
+  expect(argsOptions).toStrictEqual({
     _: [],
     a: 'value',
     b: 'value',