gitr 0.3.0

Async typed git CLI wrapper for agents and automation.
Documentation 
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use gitr::Repository;
use std::path::PathBuf;

fn git_available() -> bool {
    which::which("git").is_ok()
}

fn git_binary() -> PathBuf {
    std::env::var_os("GIT_BINARY")
        .map(PathBuf::from)
        .unwrap_or_else(|| "git".into())
}

fn configure_git(dir: &std::path::Path) {
    std::process::Command::new(git_binary())
        .current_dir(dir)
        .args(["config", "user.email", "test@gitr.rs"])
        .status()
        .expect("git config email");
    std::process::Command::new(git_binary())
        .current_dir(dir)
        .args(["config", "user.name", "gitr test"])
        .status()
        .expect("git config name");
}

#[tokio::test]
async fn init_and_status() {
    if !git_available() {
        return;
    }
    let tmp = tempfile::tempdir().unwrap();
    let dir = tmp.path();

    std::process::Command::new(git_binary())
        .current_dir(dir)
        .arg("init")
        .status()
        .expect("git init");

    configure_git(dir);

    let repo = Repository::open(dir).await.unwrap();
    let status = repo.status().await.unwrap();
    assert!(status.staged.is_empty());
    assert!(status.unstaged.is_empty());
}

#[tokio::test]
async fn worktree_add_and_remove() {
    if !git_available() {
        return;
    }
    let tmp = tempfile::tempdir().unwrap();
    let dir = tmp.path();

    std::process::Command::new(git_binary())
        .current_dir(dir)
        .arg("init")
        .status()
        .expect("git init");

    configure_git(dir);

    // Create initial commit so we can create branches.
    std::fs::write(dir.join("README.md"), "# test\n").unwrap();
    std::process::Command::new(git_binary())
        .current_dir(dir)
        .args(["add", "README.md"])
        .status()
        .unwrap();
    std::process::Command::new(git_binary())
        .current_dir(dir)
        .args(["commit", "-m", "initial"])
        .status()
        .unwrap();

    let repo = Repository::open(dir).await.unwrap();
    repo.branch_create("feature-x", None).await.unwrap();
    let wt_path = dir.join("wt-1");
    repo.worktree_add(&wt_path, "feature-x").await.unwrap();

    let wts = repo.worktree_list().await.unwrap();
    let canonical_wt = wt_path.canonicalize().unwrap_or(wt_path.clone());
    assert!(wts.iter().any(|wt| wt.path == canonical_wt));

    repo.worktree_remove(&wt_path, false).await.unwrap();
}