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<Level>,
#[command(subcommand)]
command: Commands,
}
#[derive(Subcommand)]
enum Commands {
/// Runs the tvix-store daemon.
Daemon {
#[arg(long, short = 'l')]
listen_address: Option<String>,
#[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<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,
},
/// 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<dyn std::error::Error>> {
let cli = Cli::parse();
// configure log settings
let level = cli.log_level.unwrap_or(Level::INFO);
let subscriber = tracing_subscriber::registry()
.with(if cli.json {
Some(
tracing_subscriber::fmt::Layer::new()
.with_writer(std::io::stderr.with_max_level(level))
.json(),
)
} else {
None
})
.with(if !cli.json {
Some(
tracing_subscriber::fmt::Layer::new()
.with_writer(std::io::stderr.with_max_level(level))
.pretty(),
)
} else {
None
});
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<dyn PathInfoService> = path_info_service.into();
let tasks = paths
.into_iter()
.map(|path| {
let task: JoinHandle<std::io::Result<()>> = 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 {
// 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 root_node_copy = root_node.clone();
let (nar_size, nar_sha256) =
path_info_service.calculate_nar(&root_node_copy).await?;
let name = path
.file_name()
.expect("path must not be ..")
.to_str()
.expect("path must be valid unicode");
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::<Vec<_>>();
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"
)
}
}
}
