use clap::Subcommand; use data_encoding::BASE64; use futures::future::try_join_all; use nix_compat::store_path; use nix_compat::store_path::StorePath; use std::path::Path; use std::path::PathBuf; use std::sync::Arc; use tokio::task::JoinHandle; use tokio_listener::Listener; use tokio_listener::SystemOptions; use tokio_listener::UserOptions; use tracing_subscriber::prelude::*; use tvix_castore::import; use tvix_castore::proto::blob_service_server::BlobServiceServer; use tvix_castore::proto::directory_service_server::DirectoryServiceServer; use tvix_castore::proto::node::Node; use tvix_castore::proto::GRPCBlobServiceWrapper; use tvix_castore::proto::GRPCDirectoryServiceWrapper; use tvix_castore::proto::NamedNode; use tvix_store::pathinfoservice::PathInfoService; use tvix_store::proto::nar_info; use tvix_store::proto::path_info_service_server::PathInfoServiceServer; use tvix_store::proto::GRPCPathInfoServiceWrapper; use tvix_store::proto::NarInfo; use tvix_store::proto::PathInfo; #[cfg(any(feature = "fuse", feature = "virtiofs"))] use tvix_store::pathinfoservice::make_fs; #[cfg(feature = "fuse")] use tvix_castore::fs::fuse::FuseDaemon; #[cfg(feature = "virtiofs")] use tvix_castore::fs::virtiofs::start_virtiofs_daemon; #[cfg(feature = "tonic-reflection")] use tvix_castore::proto::FILE_DESCRIPTOR_SET as CASTORE_FILE_DESCRIPTOR_SET; #[cfg(feature = "tonic-reflection")] use tvix_store::proto::FILE_DESCRIPTOR_SET; use clap::Parser; use tonic::{transport::Server, Result}; use tracing::{info, Level}; #[derive(Parser)] #[command(author, version, about, long_about = None)] struct Cli { /// Whether to log in JSON #[arg(long)] json: bool, #[arg(long)] log_level: Option, #[command(subcommand)] command: Commands, } #[derive(Subcommand)] enum Commands { /// Runs the tvix-store daemon. Daemon { #[arg(long, short = 'l')] listen_address: Option, #[arg(long, env, default_value = "sled:///var/lib/tvix-store/blobs.sled")] blob_service_addr: String, #[arg( long, env, default_value = "sled:///var/lib/tvix-store/directories.sled" )] directory_service_addr: String, #[arg(long, env, default_value = "sled:///var/lib/tvix-store/pathinfo.sled")] path_info_service_addr: String, }, /// Imports a list of paths into the store, print the store path for each of them. Import { #[clap(value_name = "PATH")] paths: Vec, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] blob_service_addr: String, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] directory_service_addr: String, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] path_info_service_addr: String, }, /// Mounts a tvix-store at the given mountpoint #[cfg(feature = "fuse")] Mount { #[clap(value_name = "PATH")] dest: PathBuf, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] blob_service_addr: String, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] directory_service_addr: String, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] path_info_service_addr: String, /// Number of FUSE threads to spawn. #[arg(long, env, default_value_t = default_threads())] threads: usize, /// Whether to list elements at the root of the mount point. /// This is useful if your PathInfoService doesn't provide an /// (exhaustive) listing. #[clap(long, short, action)] list_root: bool, }, /// Starts a tvix-store virtiofs daemon at the given socket path. #[cfg(feature = "virtiofs")] #[command(name = "virtiofs")] VirtioFs { #[clap(value_name = "PATH")] socket: PathBuf, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] blob_service_addr: String, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] directory_service_addr: String, #[arg(long, env, default_value = "grpc+http://[::1]:8000")] path_info_service_addr: String, /// Whether to list elements at the root of the mount point. /// This is useful if your PathInfoService doesn't provide an /// (exhaustive) listing. #[clap(long, short, action)] list_root: bool, }, } #[cfg(all(feature = "fuse", not(target_os = "macos")))] fn default_threads() -> usize { std::thread::available_parallelism() .map(|threads| threads.into()) .unwrap_or(4) } // On MacFUSE only a single channel will receive ENODEV when the file system is // unmounted and so all the other channels will block forever. // See https://github.com/osxfuse/osxfuse/issues/974 #[cfg(all(feature = "fuse", target_os = "macos"))] fn default_threads() -> usize { 1 } #[tokio::main] async fn main() -> Result<(), Box> { let cli = Cli::parse(); // configure log settings let level = cli.log_level.unwrap_or(Level::INFO); let subscriber = tracing_subscriber::registry() .with( cli.json.then_some( tracing_subscriber::fmt::Layer::new() .with_writer(std::io::stderr.with_max_level(level)) .json(), ), ) .with( (!cli.json).then_some( tracing_subscriber::fmt::Layer::new() .with_writer(std::io::stderr.with_max_level(level)) .pretty(), ), ); tracing::subscriber::set_global_default(subscriber).expect("Unable to set global subscriber"); match cli.command { Commands::Daemon { listen_address, blob_service_addr, directory_service_addr, path_info_service_addr, } => { // initialize stores let (blob_service, directory_service, path_info_service) = tvix_store::utils::construct_services( blob_service_addr, directory_service_addr, path_info_service_addr, ) .await?; let listen_address = listen_address .unwrap_or_else(|| "[::]:8000".to_string()) .parse() .unwrap(); let mut server = Server::builder(); #[allow(unused_mut)] let mut router = server .add_service(BlobServiceServer::new(GRPCBlobServiceWrapper::from( blob_service, ))) .add_service(DirectoryServiceServer::new( GRPCDirectoryServiceWrapper::from(directory_service), )) .add_service(PathInfoServiceServer::new(GRPCPathInfoServiceWrapper::new( Arc::from(path_info_service), ))); #[cfg(feature = "tonic-reflection")] { let reflection_svc = tonic_reflection::server::Builder::configure() .register_encoded_file_descriptor_set(CASTORE_FILE_DESCRIPTOR_SET) .register_encoded_file_descriptor_set(FILE_DESCRIPTOR_SET) .build()?; router = router.add_service(reflection_svc); } info!(listen_address=%listen_address, "starting daemon"); let listener = Listener::bind( &listen_address, &SystemOptions::default(), &UserOptions::default(), ) .await?; router.serve_with_incoming(listener).await?; } Commands::Import { paths, blob_service_addr, directory_service_addr, path_info_service_addr, } => { // FUTUREWORK: allow flat for single files? let (blob_service, directory_service, path_info_service) = tvix_store::utils::construct_services( blob_service_addr, directory_service_addr, path_info_service_addr, ) .await?; // Arc the PathInfoService, as we clone it . let path_info_service: Arc = path_info_service.into(); let tasks = paths .into_iter() .map(|path| { let task: JoinHandle> = tokio::task::spawn({ let blob_service = blob_service.clone(); let directory_service = directory_service.clone(); let path_info_service = path_info_service.clone(); async move { // calculate the name let name = path .file_name() .and_then(|file_name| file_name.to_str()) .ok_or_else(|| { std::io::Error::new( std::io::ErrorKind::InvalidInput, "path must not be .. and the basename valid unicode", ) })?; // Ingest the path into blob and directory service. let root_node = import::ingest_path( blob_service.clone(), directory_service.clone(), &path, ) .await .expect("failed to ingest path"); // Ask the PathInfoService for the NAR size and sha256 let (nar_size, nar_sha256) = path_info_service.calculate_nar(&root_node).await?; let output_path = store_path::build_nar_based_store_path(&nar_sha256, name); // assemble a new root_node with a name that is derived from the nar hash. let root_node = root_node.rename(output_path.to_string().into_bytes().into()); // assemble the [crate::proto::PathInfo] object. let path_info = PathInfo { node: Some(tvix_castore::proto::Node { node: Some(root_node), }), // There's no reference scanning on path contents ingested like this. references: vec![], narinfo: Some(NarInfo { nar_size, nar_sha256: nar_sha256.to_vec().into(), signatures: vec![], reference_names: vec![], deriver: None, ca: Some(nar_info::Ca { r#type: tvix_store::proto::nar_info::ca::Hash::NarSha256 .into(), digest: nar_sha256.to_vec().into(), }), }), }; // put into [PathInfoService], and return the PathInfo that we get back // from there (it might contain additional signatures). let path_info = path_info_service.put(path_info).await?; let node = path_info.node.unwrap().node.unwrap(); log_node(&node, &path); println!( "{}", StorePath::from_bytes(node.get_name()) .unwrap() .to_absolute_path() ); Ok(()) } }); task }) .collect::>(); try_join_all(tasks).await?; } #[cfg(feature = "fuse")] Commands::Mount { dest, blob_service_addr, directory_service_addr, path_info_service_addr, list_root, threads, } => { let (blob_service, directory_service, path_info_service) = tvix_store::utils::construct_services( blob_service_addr, directory_service_addr, path_info_service_addr, ) .await?; let mut fuse_daemon = tokio::task::spawn_blocking(move || { let fs = make_fs( blob_service, directory_service, Arc::from(path_info_service), list_root, ); info!(mount_path=?dest, "mounting"); FuseDaemon::new(fs, &dest, threads) }) .await??; // grab a handle to unmount the file system, and register a signal // handler. tokio::spawn(async move { tokio::signal::ctrl_c().await.unwrap(); info!("interrupt received, unmounting…"); tokio::task::spawn_blocking(move || fuse_daemon.unmount()).await??; info!("unmount occured, terminating…"); Ok::<_, std::io::Error>(()) }) .await??; } #[cfg(feature = "virtiofs")] Commands::VirtioFs { socket, blob_service_addr, directory_service_addr, path_info_service_addr, list_root, } => { let (blob_service, directory_service, path_info_service) = tvix_store::utils::construct_services( blob_service_addr, directory_service_addr, path_info_service_addr, ) .await?; tokio::task::spawn_blocking(move || { let fs = make_fs( blob_service, directory_service, Arc::from(path_info_service), list_root, ); info!(socket_path=?socket, "starting virtiofs-daemon"); start_virtiofs_daemon(fs, socket) }) .await??; } }; Ok(()) } fn log_node(node: &Node, path: &Path) { match node { Node::Directory(directory_node) => { info!( path = ?path, name = ?directory_node.name, digest = BASE64.encode(&directory_node.digest), "import successful", ) } Node::File(file_node) => { info!( path = ?path, name = ?file_node.name, digest = BASE64.encode(&file_node.digest), "import successful" ) } Node::Symlink(symlink_node) => { info!( path = ?path, name = ?symlink_node.name, target = ?symlink_node.target, "import successful" ) } } }