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use std::{
collections::HashMap,
pin::Pin,
sync::Arc,
task::{self, Poll},
};
use tokio::io::{self, AsyncWrite};
use tvix_castore::{blobservice::BlobService, directoryservice::DirectoryService};
use url::Url;
use crate::composition::{
with_registry, Composition, DeserializeWithRegistry, ServiceBuilder, REG,
};
use crate::nar::{NarCalculationService, SimpleRenderer};
use crate::pathinfoservice::PathInfoService;
#[derive(serde::Deserialize, Default)]
pub struct CompositionConfigs {
pub blobservices:
HashMap<String, DeserializeWithRegistry<Box<dyn ServiceBuilder<Output = dyn BlobService>>>>,
pub directoryservices: HashMap<
String,
DeserializeWithRegistry<Box<dyn ServiceBuilder<Output = dyn DirectoryService>>>,
>,
pub pathinfoservices: HashMap<
String,
DeserializeWithRegistry<Box<dyn ServiceBuilder<Output = dyn PathInfoService>>>,
>,
}
pub fn addrs_to_configs(
blob_service_addr: impl AsRef<str>,
directory_service_addr: impl AsRef<str>,
path_info_service_addr: impl AsRef<str>,
) -> Result<CompositionConfigs, Box<dyn std::error::Error + Send + Sync>> {
let mut configs: CompositionConfigs = Default::default();
let blob_service_url = Url::parse(blob_service_addr.as_ref())?;
let directory_service_url = Url::parse(directory_service_addr.as_ref())?;
let path_info_service_url = Url::parse(path_info_service_addr.as_ref())?;
configs.blobservices.insert(
"default".into(),
with_registry(®, || blob_service_url.try_into())?,
);
configs.directoryservices.insert(
"default".into(),
with_registry(®, || directory_service_url.try_into())?,
);
configs.pathinfoservices.insert(
"default".into(),
with_registry(®, || path_info_service_url.try_into())?,
);
Ok(configs)
}
/// Construct the store handles from their addrs.
pub async fn construct_services(
blob_service_addr: impl AsRef<str>,
directory_service_addr: impl AsRef<str>,
path_info_service_addr: impl AsRef<str>,
) -> Result<
(
Arc<dyn BlobService>,
Arc<dyn DirectoryService>,
Arc<dyn PathInfoService>,
Box<dyn NarCalculationService>,
),
Box<dyn std::error::Error + Send + Sync>,
> {
let configs = addrs_to_configs(
blob_service_addr,
directory_service_addr,
path_info_service_addr,
)?;
construct_services_from_configs(configs).await
}
/// Construct the store handles from their addrs.
pub async fn construct_services_from_configs(
configs: CompositionConfigs,
) -> Result<
(
Arc<dyn BlobService>,
Arc<dyn DirectoryService>,
Arc<dyn PathInfoService>,
Box<dyn NarCalculationService>,
),
Box<dyn std::error::Error + Send + Sync>,
> {
let mut comp = Composition::default();
comp.extend(configs.blobservices);
comp.extend(configs.directoryservices);
comp.extend(configs.pathinfoservices);
let blob_service: Arc<dyn BlobService> = comp.build("default").await?;
let directory_service: Arc<dyn DirectoryService> = comp.build("default").await?;
let path_info_service: Arc<dyn PathInfoService> = comp.build("default").await?;
// HACK: The grpc client also implements NarCalculationService, and we
// really want to use it (otherwise we'd need to fetch everything again for hashing).
// Until we revamped store composition and config, detect this special case here.
let nar_calculation_service: Box<dyn NarCalculationService> = path_info_service
.nar_calculation_service()
.unwrap_or_else(|| {
Box::new(SimpleRenderer::new(
blob_service.clone(),
directory_service.clone(),
))
});
Ok((
blob_service,
directory_service,
path_info_service,
nar_calculation_service,
))
}
/// The inverse of [tokio_util::io::SyncIoBridge].
/// Don't use this with anything that actually does blocking I/O.
pub struct AsyncIoBridge<T>(pub T);
impl<W: std::io::Write + Unpin> AsyncWrite for AsyncIoBridge<W> {
fn poll_write(
self: Pin<&mut Self>,
_cx: &mut task::Context<'_>,
buf: &[u8],
) -> Poll<io::Result<usize>> {
Poll::Ready(self.get_mut().0.write(buf))
}
fn poll_flush(self: Pin<&mut Self>, _cx: &mut task::Context<'_>) -> Poll<io::Result<()>> {
Poll::Ready(self.get_mut().0.flush())
}
fn poll_shutdown(
self: Pin<&mut Self>,
_cx: &mut task::Context<'_>,
) -> Poll<Result<(), io::Error>> {
Poll::Ready(Ok(()))
}
}
|
