use libgit2 to track PRs (#10)v0.2.0

* nix: don't depend on registry for nixpkgs input

* use libgit2 to track PRs

* nix: don't use ci devShell as defaul

* crates: bump serenity from `9ad74d4` to `0.12.2

* nix: fix cross compiled builds

* crates: split more from client

* bot-jobs: update remote refs more efficiently

* git-tracker: account for HEAD commits

* bot-config: use nixpkgs branches from environment

* bot-commands: don't display branches prs haven't landed in

* git-tracker: return false when commits aren't found

this is annoying as a hard error since it turns out github will report
garbage merge commit SHAs for PRs that *haven't* been merged yet. yay

* bot: improve docs in some places

* bot-client: display invite link on start

* bot-http: add TeawieClientExt

* bot-commands: add /about

* docs: update readme todos

* nix: enable StateDirectory in module

* crates: bump to 0.2.0

1 files changed, 79 insertions, 0 deletions

diff --git a/crates/bot-client/src/lib.rs b/crates/bot-client/src/lib.rs
new file mode 100644
index 0000000..851b853
--- /dev/null
+++ b/crates/bot-client/src/lib.rs
@@ -0,0 +1,79 @@
+use bot_config::Config;
+use bot_error::Error;
+use bot_http as http;
+
+use std::sync::Arc;
+
+use log::trace;
+use serenity::prelude::{Client, GatewayIntents, TypeMapKey};
+
+mod handler;
+
+use handler::Handler;
+
+/// Container for [`http::Client`]
+struct SharedHttp;
+
+impl TypeMapKey for SharedHttp {
+	type Value = Arc<http::Client>;
+}
+
+/// Container for [`Config`]
+struct SharedConfig;
+
+impl TypeMapKey for SharedConfig {
+	type Value = Arc<Config>;
+}
+
+/// Fetch our bot token
+fn token() -> Result<String, Error> {
+	let token = std::env::var("DISCORD_BOT_TOKEN")?;
+	Ok(token)
+}
+
+/// Create our client
+///
+/// # Errors
+///
+/// Will return [`Err`] if a [`Client`] cannot be created or configuration
+/// cannot be created from the environment.
+///
+/// # Panics
+///
+/// Will [`panic!`] if the bot token isn't found or the ctrl+c handler can't be made
+pub async fn get() -> Result<Client, Error> {
+	let token = token().expect("Couldn't find token in environment! Is DISCORD_BOT_TOKEN set?");
+
+	let intents = GatewayIntents::default();
+	trace!("Creating client");
+	let client = Client::builder(token, intents)
+		.event_handler(Handler)
+		.await?;
+
+	// add state stuff
+	let http_client = <http::Client as http::ClientExt>::default();
+	let config = Config::from_env()?;
+
+	{
+		let mut data = client.data.write().await;
+
+		data.insert::<SharedHttp>(Arc::new(http_client));
+		data.insert::<SharedConfig>(Arc::new(config.clone()));
+	}
+
+	let shard_manager = client.shard_manager.clone();
+
+	// gracefully shutdown on ctrl+c
+	tokio::spawn(async move {
+		#[cfg(target_family = "unix")]
+		tokio::signal::ctrl_c()
+			.await
+			.expect("Couldn't register ctrl+c handler!");
+		shard_manager.shutdown_all().await;
+	});
+
+	// run our jobs
+	bot_jobs::dispatch(config)?;
+
+	Ok(client)
+}