feat(command): add support for input filter for non-interactive

the input filter, previously supported for interactive mode via inquirer
allow transformation of the input before validation happens. This allows
for a great deal of functionality and flexibility for end users being
able to fix typos, enter short hands, etc. This is being extended into
the non-interactive commands as well

lib/command/index.js

@@ -237,7 +237,11 @@ class Command extends Registry {
         return this.parsed
       }
       const value = hasOwn(this.parsed, key) ? this.parsed[key] : flag.default
-      object.set(this.parsed, key, value)
+      object.set(
+        this.parsed
+      , key
+      , typeof flag.filter === 'function' ? flag.filter(value, this.parsed) : value
+      )
     }
     return this.parsed
   }
@@ -648,7 +652,7 @@ function toQuestion(flag, opts, answers) {
   // can return them
   arg.when = opts.when ? opts.when.bind(null, answers) : undefined
   arg.validate = opts.validate ? opts.validate.bind(null, answers) : undefined
-  arg.filter = opts.filter ? opts.filter.bind(null, answers) : undefined
+  arg.filter = opts.filter ? opts.filter.bind(null) : undefined
   arg.transformer = opts.transformer ? opts.transformer : transform.bind(arg)
   return arg
 }

test/command.js

@@ -58,6 +58,9 @@ test('command', async (t) => {
       , 'foo:bar:baz': {
           type: Number
         , required: true
+        , filter(input) {
+            return input + 100
+          }
         }
       , 'nested:array': {
           type: [Number, Array]
@@ -71,7 +74,7 @@ test('command', async (t) => {
         t.match(data, {
           foo: {
             bar: {
-              baz: Number
+              baz: 112
             }
           }
         , test: Boolean