added array option type

Author: chenasraf

.vscode/tasks.json

@@ -13,7 +13,7 @@
     },
     {
       "type": "shell",
-      "command": "yarn build && npm publish build",
+      "command": "yarn build && npm publish build/",
       "problemMatcher": [
         "$tsc-watch"
       ],

package.json

@@ -1,6 +1,6 @@
 {
   "name": "massarg",
-  "version": "0.1.0-pre.8",
+  "version": "0.1.0-pre.11",
   "description": "Flexible, powerful, and simple command/argument parser for CLI applications",
   "main": "index.js",
   "repository": "https://github.com/chenasraf/massarg.git",
@@ -10,7 +10,7 @@
     "clean": "rm -rf build",
     "build": "yarn clean && tsc && cp package.json README.md src/*.d.ts build",
     "develop": "tsc --watch",
-    "deploy": "yarn build && npm publish build"
+    "deploy": "yarn build && npm publish build/"
   },
   "devDependencies": {
     "@types/chalk": "^2.2.0",

src/index.ts

@@ -117,6 +117,7 @@ export class Massarg<Options extends OptionsBase = OptionsBase> {
       if (option) {
         // detect boolean values
         option.boolean ??= option.parse === Boolean || [true, false].includes(option.defaultValue)
+        option.array ??= Array.isArray(option.defaultValue)
 
         let tempValue: any
         const hasNextToken = args.length > i + 1
@@ -180,8 +181,36 @@ export class Massarg<Options extends OptionsBase = OptionsBase> {
 
   private _addOptionToData(option: OptionDef<Options, any>, value: any) {
     const _d: Record<string, any> = this.data
-    _d[camelCase(option.name)] = value
-    option.aliases?.forEach((a) => (_d[a] = value))
+    const set = (value: any) => {
+      _d[option.name] = value
+      _d[camelCase(option.name)] = value
+      option.aliases?.forEach((a) => (_d[a] = value))
+    }
+    const push = (value: any) => {
+      const ccSame = camelCase(option.name) === option.name
+      _d[option.name] ??= []
+      _d[camelCase(option.name)] ??= []
+      option.aliases?.forEach((a) => (_d[a] ??= []))
+
+      _d[option.name].push(value)
+      if (!ccSame) {
+        _d[camelCase(option.name)].push(value)
+      }
+      option.aliases?.forEach((a) => _d[a].push(value))
+    }
+    if (!option.array) {
+      // single value
+      set(value)
+    } else {
+      // multiple values
+      if (Array.isArray(value) && value.length) {
+        for (const el of value) {
+          push(el)
+        }
+      } else if (!Array.isArray(value)) {
+        push(value)
+      }
+    }
   }
 
   private _getWrappedLines(list: Array<{ name: string; description?: string }>): string[] {

src/options.d.ts

@@ -30,6 +30,12 @@ export interface OptionDef<Options, Value> {
    */
   boolean?: boolean
 
+  /**
+   * An array field will collect any inputs to it into a list. Each item in the list will be parsed with `parse` before
+   * being added.
+   */
+  array?: boolean
+
   /**
    * Commands this option is relevant for. You may use either name or alias of command, but in the help text, only the
    * name will be shown as the section title.