awslike

awslike

An example parsh CLI showcasing deeply nested commands, modeled loosely after the AWS CLI shape.

bun run generate   # regenerate src/commandTree.gen.ts from src/commands/
bun run start <command> [...]

Edit or add files under src/commands/ and re-run generate.

Error handling

src/errors.ts defines two custom error classes (NotAuthorized, InvalidRegion), each carrying a static readonly code. They are registered with createCli({ errors, onError }) in src/main.ts so a handler can throw new NotAuthorized(...) and the centralized onError hook narrows by code, prints a tailored message, and returns a specific exit code.

Try it:

bun run start ec2 create --identity guest --name x --cpuCount 1   # exit 77
bun run start ec2 create --identity user --region mars-1 --name x --cpuCount 1   # exit 75