git.delta.rocks / jrsonnet / refs/commits / d9405376effd

1#![recursion_limit = "512"]2#![feature(try_blocks)]34pub(crate) mod cmds;5pub(crate) mod command;6pub(crate) mod host;7pub(crate) mod keys;89pub(crate) mod better_nix_eval;10pub(crate) mod extra_args;1112mod fleetdata;1314use std::{ffi::OsString, process::ExitCode};1516use anyhow::{bail, Result};17use clap::{CommandFactory, Parser};18use cmds::{19	build_systems::{BuildSystems, Deploy},20	complete::Complete,21	info::Info,22	secrets::Secret,23};24use futures::{future::LocalBoxFuture, stream::FuturesUnordered, TryStreamExt};25use host::{Config, FleetOpts};26#[cfg(feature = "indicatif")]27use human_repr::HumanCount;28#[cfg(feature = "indicatif")]29use indicatif::{ProgressState, ProgressStyle};30use tracing::{error, info, info_span, Instrument};31#[cfg(feature = "indicatif")]32use tracing_indicatif::IndicatifLayer;33use tracing_subscriber::{prelude::*, EnvFilter};3435use crate::command::MyCommand;3637#[derive(Parser)]38struct Prefetch {}39impl Prefetch {40	async fn run(&self, config: &Config) -> Result<()> {41		let mut prefetch_dir = config.directory.to_path_buf();42		prefetch_dir.push("prefetch");43		if !prefetch_dir.is_dir() {44			info!("nothing to prefetch: no prefetch directory");45			return Ok(());46		}47		let tasks = <FuturesUnordered<LocalBoxFuture<Result<()>>>>::new();48		for entry in std::fs::read_dir(&prefetch_dir)? {49			tasks.push(Box::pin(async {50				let entry = entry?;51				if !entry.metadata()?.is_file() {52					bail!("only files should exist in prefetch directory");53				}54				let span = info_span!(55					"prefetching",56					name = entry.file_name().to_string_lossy().as_ref()57				);58				let mut path = OsString::new();59				path.push("file://");60				path.push(entry.path());6162				let mut status = MyCommand::new("nix");63				status.args(&config.nix_args);64				status.arg("store").arg("prefetch-file").arg(path);65				status.run_nix_string().instrument(span).await?;66				Ok(())67			}));68		}69		tasks.try_collect::<Vec<()>>().await?;70		Ok(())71	}72}7374#[derive(Parser)]75enum Opts {76	/// Prepare systems for deployments77	BuildSystems(BuildSystems),7879	Deploy(Deploy),80	/// Secret management81	#[clap(subcommand)]82	Secret(Secret),83	/// Upload prefetch directory to the nix store84	Prefetch(Prefetch),85	/// Config parsing86	Info(Info),87	/// Command completions88	#[clap(hide(true))]89	Complete(Complete),90}9192#[derive(Parser)]93#[clap(version, author)]94struct RootOpts {95	#[clap(flatten)]96	fleet_opts: FleetOpts,97	#[clap(subcommand)]98	command: Opts,99}100101async fn run_command(config: &Config, command: Opts) -> Result<()> {102	match command {103		Opts::BuildSystems(c) => c.run(config).await?,104		Opts::Deploy(d) => d.run(config).await?,105		Opts::Secret(s) => s.run(config).await?,106		Opts::Info(i) => i.run(config).await?,107		Opts::Prefetch(p) => p.run(config).await?,108		// TODO: actually parse commands before starting the async runtime109		Opts::Complete(c) => {110			tokio::task::spawn_blocking(move || c.run(RootOpts::command())).await?111		}112	};113	Ok(())114}115116fn setup_logging() {117	#[cfg(feature = "indicatif")]118	let indicatif_layer = {119		use std::time::Duration;120121		IndicatifLayer::new().with_progress_style(122			ProgressStyle::with_template(123				"{color_start}{span_child_prefix} {span_name}{{{span_fields}}}{color_end} {wide_msg} {color_start}{download_progress} {elapsed}{color_end}",124			)125				.unwrap()126				.with_key("download_progress", |state: &ProgressState, writer: &mut dyn std::fmt::Write| {127					let Some(len) = state.len() else {128						return;129					};130					let pos = state.pos();131					if pos > len {132						let _ = write!(writer, "{}", pos.human_count_bare());133					} else {134						let _ = write!(writer, "{} / {}", pos.human_count_bare(), len.human_count_bare());135					}136				})137				.with_key(138					"color_start",139					|state: &ProgressState, writer: &mut dyn std::fmt::Write| {140						let elapsed = state.elapsed();141142						if elapsed > Duration::from_secs(60) {143							// Red144							let _ = write!(writer, "\x1b[{}m", 1 + 30);145						} else if elapsed > Duration::from_secs(30) {146							// Yellow147							let _ = write!(writer, "\x1b[{}m", 3 + 30);148						}149					},150				)151				.with_key(152					"color_end",153					|state: &ProgressState, writer: &mut dyn std::fmt::Write| {154						if state.elapsed() > Duration::from_secs(30) {155							let _ = write!(writer, "\x1b[0m");156						}157					},158				),159		)160	};161162	let filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| EnvFilter::new("info"));163164	let reg = tracing_subscriber::registry().with({165		let sub = tracing_subscriber::fmt::layer()166			.without_time()167			.with_target(false);168		#[cfg(feature = "indicatif")]169		let sub = sub.with_writer(indicatif_layer.get_stdout_writer());170		sub.with_filter(filter) // .without,171	});172	// #[cfg(feature = "indicatif")]173	#[cfg(feature = "indicatif")]174	let reg = reg.with(indicatif_layer);175	reg.init();176}177178#[tokio::main]179async fn main() -> ExitCode {180	setup_logging();181	if let Err(e) = main_real().await {182		// If I remove this line, the next error!() line gets eaten.183		// This is a bug in indicatif, it needs to be fixed184		#[cfg(feature = "indicatif")]185		info!("fixme: this line gets eaten by tracing-indicatif on levels info+");186		error!("{e:#}");187		return ExitCode::FAILURE;188	}189	ExitCode::SUCCESS190}191192async fn main_real() -> Result<()> {193	nix_eval::init_tokio();194195	let nix_args = std::env::var_os("NIX_ARGS")196		.map(|a| extra_args::parse_os(&a))197		.transpose()?198		.unwrap_or_default();199	let opts = RootOpts::parse();200	let config = opts.fleet_opts.build(nix_args).await?;201202	match run_command(&config, opts.command).await {203		Ok(()) => {204			config.save()?;205			Ok(())206		}207		Err(e) => {208			let _ = config.save();209			Err(e)210		}211	}212}213214#[cfg(test)]215mod tests {216	use super::*;217218	#[test]219	fn verify_command() {220		use clap::CommandFactory;221		RootOpts::command().debug_assert();222	}223}