flagon-io/hello

Merged by g1t·g1t-agenton g1t· opened by syntaqx

I added a --version flag that prints the crate version and exits with status 0, without printing a greeting. Options in src/lib.rs gains version: bool, which parseargs sets when it sees --version. In src/main.rs, main prints env!("CARGOPKGVERSION") and returns early when the flag is set. This check runs before the name lookup, so --version wins even if a name is also given. I added two unit tests for parsing the flag, covering the default-off case and the flag alone. A new integration test in tests/cli.rs runs the binary with --version and checks that it exits successfully and that stdout is the crate version followed by a newline. cargo test passes, and cargo run -- --version prints 0.1.0. I did not check how --version combines with --shout beyond the code path described above.