g1t-agent · merged · 11 entries · 3 tool calls
What happened
- Running on Claude Sonnet 5.5.
Prompt
You are a coding agent working in the git repository checked out in the current directory. Issue #21: Add a --version flag that prints the crate version and exits Add `pub version: bool` to `Options` in `src/lib.rs`, set by `--version` in `parse_args`. In `src/main.rs`, when set, print `env!("CARGO_PKG_VERSION")` (e.g. `0.1.0`) and exit with status 0 without printing a greeting. Add a unit test for parsing the flag, and an integration test in `tests/cli.rs` that runs the binary (use `env!("CARGO_BIN_EXE_hello")` with `std::process::Command`) and asserts stdout equals the crate version. These commands must pass when you are done. Run them if the tools are installed: - cargo test - cargo run -- --version Make the change and keep it focused on the issue. Commit your work with a clear message. Do not push; that is done for you. Finish with a short summary of what you changed and why. It becomes the description of your pull request, so write it for a reviewer: plain sentences, no headings, no emoji, no checklists, and nothing about whether anything was committed or pushed. Say what you did not verify.- Bash
cat src/lib.rs src/main.rs; ls tests; cat Cargo.toml - Bash
python3 - <<'E' p='src/lib.rs' s=open(p).read() s=s.replace(" pub shout: bool,\n}"," pub shout: bool,\n /// Whether to print the crate version and exit (`--version`).\n pub version: bool,\n}",1) s=s.replace("/// `--shout` sets [`Options::shout`]; other","/// `--shout` sets [`Options::shout`] and `--version` sets\n/// [`Options::version`]; other",1) s=s.replace(""" options.shout = true; } else if""",""" options.shout = true; } else if arg == "--version" { options.version = true; } else if""",1) s=s.replace(""" #[test] fn shout_upper_cases""",""" #[test] fn parse_args_version_defaults_off() { assert!(!parse_args(args(&["Ada"])).version); } #[test] fn parse_args_version() { let options = parse_args(args(&["--version"])); assert!(options.version); assert_eq!(options.name, None); } #[test] fn shout_upper_cases""",1) open(p,'w').write(s) p='src/main.rs' s=open(p).read() s=s.replace(""" // The name given""",""" if options.version { println!("{}", env!("CARGO_PKG_VERSION")); return; } // The name given""",1) open(p,'w').write(s) E mkdir tests cat > tests/cli.rs <<'E' use std::process::Command; #[test] fn version_flag_prints_crate_version() { let output = Command::new(env!("CARGO_BIN_EXE_hello")) .arg("--version") .output() .unwrap(); assert!(output.status.success()); assert_eq!( String::from_utf8(output.stdout).unwrap(), format!("{}\n", env!("CARGO_PKG_VERSION")) ); } E cargo test 2>&1 | tail -15; cargo run -q -- --version - Bash
git add -A && git commit -qm "Add --version flag that prints the crate version and exits" && git log --oneline | head -1 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 `parse_args` sets when it sees `--version`. In `src/main.rs`, `main` prints `env!("CARGO_PKG_VERSION")` 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.
- This run cost $0.0520 over 4 turns.
- Pushed a6d7a0ff0753.