flutter pub add completion根據套件公開資料產生的選型評估，僅供參考。
完成套件讓 Dart 應用程式中的 shell 命令列補完成為可能，讓使用者在與 CLI 工具互動時能受益於自動建議與 tab 補全。它與 Dart 命令列介面無縫整合，提升開發者建立互動式命令列工具的易用性。該套件支援多個平台，包括 Android、iOS、macOS、Windows 和 Linux，非常適合跨平台 CLI 開發。它透過註冊回應 shell 請求的補完處理常式來運作，藉由直覺的輸入協助改善使用者體驗。
以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。
Add shell command completion to your Dart console applications.
To use this package, instead of this:
import 'package:args/args.dart';
void main(List<String> args) {
final argParser = ArgParser()..addFlag('option', help: 'flag help');
// ... add more options ...
final argResults = argParser.parse(args);
// ...
}
do this:
import 'package:args/args.dart';
import 'package:completion/completion.dart' as completion;
void main(List<String> args) {
final argParser = ArgParser()..addFlag('option', help: 'flag help');
// ... add more options ...
final argResults = completion.tryArgsCompletion(args, argParser);
if (argResults == null) return;
// ...
}
(The main difference is calling completion.tryArgsCompletion in place of
argParser.parse and returning early when it returns null.)
This will add a "completion" command to your app, which the shell will use to complete arguments.
To generate the setup script automatically, call generateCompletionScript with
the names of the executables that your Dart script runs as (typically just one,
but it could be more), along with the target Shell.
Also, see the example.