minor correction

NodeApp/src/helpers/AutoCompletionHelper.ts

@@ -124,31 +124,29 @@ function generateCommandChain(cmd: Command | null): string {
     return data.trimEnd()
 }
 
+function optionsToString(cmd: Command): string {
+    if (cmd.options.length == 0) {
+        return ''
+    }
+    return cmd.options.filter(opt => !opt.hidden).map(opt => {
+        return `${prefix} ${computeHeigth(cmd)} ${generateCommandChain(cmd)}' -a "--${opt.name()}" -d "${opt.description}"`
+    }).join('\n').concat('\n')
+}
+
+
 export function writeFishCompletion(root: Command, filename: string) {
     const commands = flatten(root)
 
     let data = fishFunction
     // add commands and subcommands
     commands.forEach(cmd => {
-        if (isLeaf(cmd)) {
-            cmd.options.forEach(opt => {
-                if (!opt.hidden) {
-                    data += `${prefix} ${computeHeigth(cmd)} ${generateCommandChain(cmd)}' -a "--${opt.name()}" -d "${opt.description}"\n`
-
+        data += optionsToString(cmd)
+        if (!isLeaf(cmd)) {
+            data += cmd.commands.map(subCmd => {
+                return `${prefix} ${computeHeigth(cmd)} ${generateCommandChain(cmd)}' -a ${subCmd.name()} -d "${subCmd.description()}"`
+            }).join('\n').concat('\n')
         }
     })
-        }
-        cmd.commands.forEach(subCmd => {
-            data += `${prefix} ${computeHeigth(cmd)} ${generateCommandChain(cmd)}' -a ${subCmd.name()} -d "${subCmd.description()}"\n`
-            if (cmd.options.length > 0) {
-                cmd.options.forEach(opt => {
-                    if (!opt.hidden) {
-                        data += `${prefix} ${computeHeigth(cmd)} ${generateCommandChain(cmd)}' -a "--${opt.name()}" -d "${opt.description}"\n`
-                    }
-                })
-            }
-        })
-    })
 
     writeFileSync(filename, data);
 }