Function snapshot_worktree 

pub fn snapshot_worktree(
    dest: &Path,
    work_tree: &Path,
) -> Result<String, GitError>

Shallow clone url at reference and check it out into dest. Self- contained (no shared cache), mirroring git clone --depth 1 --branch <ref>. Snapshot a dirty working tree into instance-owned space at dest.

Tracked files (including unstaged modifications), plus untracked non-ignored files, are written as a synthetic commit whose hash is a pure content address. Gitlinks (submodules) are omitted. If dest already holds a snapshot at the same content hash, the working tree is left unchanged.