// creates a repo with user-specified path (which must not exist)// adds initial commit with empty tree use anyhow::Context;use git::objs::tree;use git_repository as git; fn main() -> anyhow::Result<()> {    // Note use of args_os:    // paths may not be UTF-8 encoded and thus can't be forced into a String.    // gitoxide does not assume encodings that aren't there    // to match the way git does it as a bare minimum and be just as flexible.    let git_dir = std::env::args_os()        .nth(1)        .context("First argument needs to be the directory to initialize the repository in")?;    let repo = git::init_bare(git_dir)?;     println!("Repo (bare): {:?}", repo.git_dir());     let mut tree = git::objs::Tree::empty();    let empty_tree_id = repo.write_object(&tree)?;     let author = git::actor::SignatureRef {        name: "Maria Sanchez".into(),        email: "maria@example.com".into(),        time: git_date::Time::now_local_or_utc(),    };    let initial_commit_id = repo.commit(        "HEAD",        author,        author,        "initial commit",        empty_tree_id,        git::commit::NO_PARENT_IDS,    )?;     println!("initial commit id with empty tree: {:?}", initial_commit_id);     let blob_id = repo.write_blob("hello world")?.into();    let entry = tree::Entry {        mode: tree::EntryMode::Blob,        oid: blob_id,        filename: "hello.txt".into(),    };     tree.entries.push(entry);    let hello_tree_id = repo.write_object(&tree)?;     let blob_commit_id = repo.commit(        "HEAD",        author,        author,        "hello commit",        hello_tree_id,        [initial_commit_id],    )?;     println!("commit id for 'hello world' blob: {:?}", blob_commit_id);     Ok(())}