failed to authenticate SSH session

[harilet]

I am trying to push to a github repo using the ssh remote but I am getting an error
failed to authenticate SSH session: ; class=Ssh (23)

the code

fn push(repo_location: &str, origin: &str) {
    let repo = Repository::open(repo_location).unwrap();
    let mut origin = repo.find_remote(&origin).unwrap();

    let branch = repo.find_branch(&"main", BranchType::Local).unwrap();

    let branch_ref = branch.into_reference();
    let branch_ref_name = branch_ref.name().unwrap();
    repo.set_head(branch_ref_name).unwrap();

    let mut remote_callbacks = git2::RemoteCallbacks::new();
    remote_callbacks.credentials(|_url, _username_from_url, _allowed_types| {
        match git2::Cred::ssh_key(
            _username_from_url.unwrap(),
            // Some(std::path::Path::new("<home>/.ssh/github/id_rsa.pub")),
            None,
            std::path::Path::new("<home>/.ssh/github/id_rsa"),
            None,
        ) {
            Ok(cred) => {
                println!("credential creation success");
                Ok(cred)
            }
            Err(e) => {
                println!("credential creation Failed: {:#?}", e);
                Err(e)
            }
        }
    });

    let mut push_options = git2::PushOptions::new();
    let mut_push_options = push_options.remote_callbacks(remote_callbacks);

    match origin.push(&[branch_ref_name], Some(mut_push_options)) {
        Ok(_) => {
            println!("push-pushed to remote")
        }
        Err(e) => {
            println!("push-failed to push to remote: {}", e)
        }
    };
}

and I am getting this output

and I am able to read the key file

can anyone help?

[harilet]

if I also add the public key it's an infinite loop not stopping and re-trying

[harilet]

@vlad-anger I saw you in a libgit2 PR. Can you help? or tag someone who can?

[vlad-anger]

Can you help?

@harilet Yes

1. Your code works. I've tested (with ssh auth, all good)
2. Problem you have is related to ssh agent. You need to ensure you have proper one running before invoke program. I would recommend you to check
   general info + agent discussion
   Run agent windows/mac

[harilet]

so even though git push origin main works for me and I am passing the key in the following code and not using the ssh_key_from_agent still need to use ssh agent?

git2::Cred::ssh_key(
            _username_from_url.unwrap(),
            // Some(std::path::Path::new("<home>/.ssh/github/id_rsa.pub")),
            None,
            std::path::Path::new("<home>/.ssh/github/id_rsa"),
            None,
)