Building Dart CLI Applications

Contents

• Project Setup & Architecture
• Argument Parsing & Command Routing
• Execution & Error Handling
• Testing CLI Applications
• Compilation & Distribution
• Workflows
• Examples

Project Setup & Architecture

Initialize new CLI projects using the official Dart template to ensure standard directory structures.

• Run dart create -t cli <project_name> to scaffold a console application with basic argument parsing.
• Place executable entry points (files containing main()) exclusively in the bin/ directory.
• Place internal implementation logic in lib/src/ and expose public APIs via lib/<project_name>.dart.
• Enforce formatting in CI environments by running dart format . --set-exit-if-changed. This returns exit code 1 if formatting violations exist.