drep-ai 2.6.0

A local commit gate: runs the linters your repo configures, and sends changed code to an LLM for review
Documentation 
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//! End-to-end exit-code contract.
//!
//! These numbers are what git hooks and CI branch on, so they are checked by
//! spawning the real binary. The unit test in `lib.rs` pins `Exit::code()`,
//! but the mapping that decides a hook's fate - error to exit 2, success to
//! the returned code - lives in `main.rs` and is only observable from outside
//! the process.

use assert_cmd::Command;
use tempfile::TempDir;

fn drep() -> Command {
    Command::cargo_bin("drep").expect("binary builds")
}

/// A directory holding one file, for the `lint-docs` and `check` cases.
fn repo_with(name: &str, content: &str) -> TempDir {
    let dir = TempDir::new().expect("temp dir");
    std::fs::write(dir.path().join(name), content).expect("write");
    dir
}

/// Give `dir` a minimal config, so `check` gets past loading one.
///
/// The endpoint is deliberately dead. Every assertion below is about input
/// resolution, which runs before any request - and a test that needed a live
/// model to prove an argument was rejected would be testing the model.
fn with_config(dir: &TempDir) {
    std::fs::write(
        dir.path().join("drep.toml"),
        "[[llm]]\nmodel = \"m\"\nendpoint = \"http://127.0.0.1:59999/v1\"\n",
    )
    .expect("write config");
}

#[test]
fn version_succeeds() {
    drep().arg("--version").assert().success();
}

#[test]
fn help_succeeds() {
    drep().arg("--help").assert().success();
}

#[test]
fn lint_docs_is_report_only_by_default_and_gates_under_strict() {
    // The three exit codes of `lint-docs`, through the real binary, because
    // the mapping from `Exit` to a process status lives in `main.rs`.
    let dir = repo_with("bad.md", "#Heading\n");
    drep()
        .arg("lint-docs")
        .current_dir(dir.path())
        .assert()
        .code(0);
    drep()
        .args(["lint-docs", "--strict"])
        .current_dir(dir.path())
        .assert()
        .code(1);

    let clean = repo_with("good.md", "# Heading\n\nprose\n");
    drep()
        .args(["lint-docs", "--strict"])
        .current_dir(clean.path())
        .assert()
        .code(0)
        .stdout("No issues found.\n");
}

#[test]
fn a_named_file_no_command_can_analyze_never_exits_clean() {
    // The failure a commit gate must never have: exiting 0 without analyzing.
    // Both directions of the file-class split, through the real binary.
    let dir = repo_with("README.md", "# T\n\nprose\n");
    std::fs::write(dir.path().join("main.rs"), "fn main() {}\n").expect("write");
    with_config(&dir);

    let assert = drep()
        .args(["check", "README.md"])
        .current_dir(dir.path())
        .assert()
        .code(2);
    let stdout = String::from_utf8(assert.get_output().stdout.clone()).expect("utf8");
    assert!(stdout.contains("lint-docs"), "{stdout}");

    let assert = drep()
        .args(["lint-docs", "main.rs"])
        .current_dir(dir.path())
        .assert()
        .code(2);
    let stdout = String::from_utf8(assert.get_output().stdout.clone()).expect("utf8");
    assert!(stdout.contains("drep check"), "{stdout}");
}

#[test]
fn usage_error_also_blocks() {
    // clap exits 2 on a usage error, colliding with "could not analyze". Both
    // mean "do not let this commit through", so the collision is safe - this
    // test records that it is deliberate rather than unnoticed.
    drep().arg("no-such-command").assert().code(2);
    drep()
        .args(["check", "--fail-on", "critical"])
        .assert()
        .code(2);
    drep().args(["check", "--staged", "a.rs"]).assert().code(2);
}

#[test]
fn no_command_is_a_usage_error() {
    drep().assert().failure();
}