rho-coding-agent 1.10.0

A lightweight agent harness inspired by Pi
Documentation 
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use std::{
    fs,
    path::{Path, PathBuf},
};

pub(super) fn git_branch(cwd: &Path) -> Option<String> {
    let git_dir = find_git_dir(cwd)?;
    let head = fs::read_to_string(git_dir.join("HEAD")).ok()?;
    let head = head.trim();
    head.strip_prefix("ref: refs/heads/")
        .map(ToString::to_string)
        .or_else(|| head.get(..7).map(ToString::to_string))
}

fn find_git_dir(cwd: &Path) -> Option<PathBuf> {
    for dir in cwd.ancestors() {
        let dot_git = dir.join(".git");
        if dot_git.is_dir() {
            return Some(dot_git);
        }
        if dot_git.is_file() {
            let contents = fs::read_to_string(&dot_git).ok()?;
            let path = contents.trim().strip_prefix("gitdir: ")?;
            let path = Path::new(path);
            return Some(if path.is_absolute() {
                path.to_path_buf()
            } else {
                dir.join(path)
            });
        }
    }
    None
}