asyncgnit 0.0.1

allow using git2 in a asynchronous context
Documentation 
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use std::collections::HashMap;

use anyhow::{Context, Result};
use git2::Oid;

pub struct RepoState {
	pub identifier: String,
	pub state: HashMap<String, String>,
	pub event: nostr::Event,
}

impl RepoState {
	pub fn try_from(
		mut state_events: Vec<nostr::Event>,
	) -> Result<Self> {
		state_events.sort_by_key(|e| e.created_at);
		let event =
			state_events.first().context("no state events")?;
		let mut state = HashMap::new();
		for tag in &event.tags {
			if let Some(name) = tag.as_vec().first() {
				if ["refs/heads/", "refs/tags", "HEAD"]
					.iter()
					.any(|s| name.starts_with(*s))
				{
					if let Some(value) = tag.as_vec().get(1) {
						if Oid::from_str(value).is_ok()
							|| value.contains("ref: refs/")
						{
							state.insert(
								name.to_owned(),
								value.to_owned(),
							);
						}
					}
				}
			}
		}
		Ok(RepoState {
			identifier: event
				.identifier()
				.context("existing event must have an identifier")?
				.to_string(),
			state,
			event: event.clone(),
		})
	}
}