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|
pub mod worker_protocol;
use std::io::Result;
use futures::future::try_join_all;
use tracing::warn;
use types::{QueryValidPaths, UnkeyedValidPathInfo};
use crate::store_path::StorePath;
pub mod framing;
pub mod handler;
pub mod types;
/// Represents all possible operations over the nix-daemon protocol.
pub trait NixDaemonIO: Sync {
fn is_valid_path(
&self,
path: &StorePath<String>,
) -> impl std::future::Future<Output = Result<bool>> + Send {
async move { Ok(self.query_path_info(path).await?.is_some()) }
}
fn query_path_info(
&self,
path: &StorePath<String>,
) -> impl std::future::Future<Output = Result<Option<UnkeyedValidPathInfo>>> + Send;
fn query_path_from_hash_part(
&self,
hash: &[u8],
) -> impl std::future::Future<Output = Result<Option<UnkeyedValidPathInfo>>> + Send;
fn query_valid_paths(
&self,
request: &QueryValidPaths,
) -> impl std::future::Future<Output = Result<Vec<UnkeyedValidPathInfo>>> + Send {
async move {
if request.substitute {
warn!("tvix does not yet support substitution, ignoring the 'substitute' flag...");
}
// Using try_join_all here to avoid returning partial results to the client.
// The only reason query_path_info can fail is due to transient IO errors,
// so we return such errors to the client as opposed to only returning paths
// that succeeded.
let result =
try_join_all(request.paths.iter().map(|path| self.query_path_info(path))).await?;
let result: Vec<UnkeyedValidPathInfo> = result.into_iter().flatten().collect();
Ok(result)
}
}
fn query_valid_derivers(
&self,
path: &StorePath<String>,
) -> impl std::future::Future<Output = Result<Vec<StorePath<String>>>> + Send {
async move {
let result = self.query_path_info(path).await?;
let result: Vec<_> = result.into_iter().filter_map(|info| info.deriver).collect();
Ok(result)
}
}
}
#[cfg(test)]
mod tests {
use crate::{nix_daemon::types::QueryValidPaths, store_path::StorePath};
use super::{types::UnkeyedValidPathInfo, NixDaemonIO};
// Very simple mock
// Unable to use mockall as it does not support unboxed async traits.
pub struct MockNixDaemonIO {
query_path_info_result: Option<UnkeyedValidPathInfo>,
}
impl NixDaemonIO for MockNixDaemonIO {
async fn query_path_info(
&self,
_path: &StorePath<String>,
) -> std::io::Result<Option<UnkeyedValidPathInfo>> {
Ok(self.query_path_info_result.clone())
}
async fn query_path_from_hash_part(
&self,
_hash: &[u8],
) -> std::io::Result<Option<UnkeyedValidPathInfo>> {
Ok(None)
}
}
#[tokio::test]
async fn test_is_valid_path_returns_true() {
let path =
StorePath::<String>::from_bytes("z6r3bn5l51679pwkvh9nalp6c317z34m-hello".as_bytes())
.unwrap();
let io = MockNixDaemonIO {
query_path_info_result: Some(UnkeyedValidPathInfo::default()),
};
let result = io
.is_valid_path(&path)
.await
.expect("expected to get a non-empty response");
assert!(result, "expected to get true");
}
#[tokio::test]
async fn test_is_valid_path_returns_false() {
let path =
StorePath::<String>::from_bytes("z6r3bn5l51679pwkvh9nalp6c317z34m-hello".as_bytes())
.unwrap();
let io = MockNixDaemonIO {
query_path_info_result: None,
};
let result = io
.is_valid_path(&path)
.await
.expect("expected to get a non-empty response");
assert!(!result, "expected to get false");
}
#[tokio::test]
async fn test_query_valid_paths_returns_empty_response() {
let path =
StorePath::<String>::from_bytes("z6r3bn5l51679pwkvh9nalp6c317z34m-hello".as_bytes())
.unwrap();
let io = MockNixDaemonIO {
query_path_info_result: None,
};
let result = io
.query_valid_paths(&QueryValidPaths {
paths: vec![path],
substitute: false,
})
.await
.expect("expected to get a non-empty response");
assert_eq!(result, vec![], "expected to get empty response");
}
#[tokio::test]
async fn test_query_valid_paths_returns_non_empty_response() {
let path =
StorePath::<String>::from_bytes("z6r3bn5l51679pwkvh9nalp6c317z34m-hello".as_bytes())
.unwrap();
let io = MockNixDaemonIO {
query_path_info_result: Some(UnkeyedValidPathInfo::default()),
};
let result = io
.query_valid_paths(&QueryValidPaths {
paths: vec![path],
substitute: false,
})
.await
.expect("expected to get a non-empty response");
assert_eq!(
result,
vec![UnkeyedValidPathInfo::default()],
"expected to get non empty response"
);
}
#[tokio::test]
async fn test_query_valid_derivers_returns_empty_response() {
let path =
StorePath::<String>::from_bytes("z6r3bn5l51679pwkvh9nalp6c317z34m-hello".as_bytes())
.unwrap();
let io = MockNixDaemonIO {
query_path_info_result: None,
};
let result = io
.query_valid_derivers(&path)
.await
.expect("expected to get a non-empty response");
assert_eq!(result, vec![], "expected to get empty response");
}
#[tokio::test]
async fn test_query_valid_derivers_returns_non_empty_response() {
let path =
StorePath::<String>::from_bytes("z6r3bn5l51679pwkvh9nalp6c317z34m-hello".as_bytes())
.unwrap();
let deriver = StorePath::<String>::from_bytes(
"z6r3bn5l51679pwkvh9nalp6c317z34m-hello.drv".as_bytes(),
)
.unwrap();
let io = MockNixDaemonIO {
query_path_info_result: Some(UnkeyedValidPathInfo {
deriver: Some(deriver.clone()),
nar_hash: "".to_owned(),
references: vec![],
registration_time: 0,
nar_size: 1,
ultimate: true,
signatures: vec![],
ca: None,
}),
};
let result = io
.query_valid_derivers(&path)
.await
.expect("expected to get a non-empty response");
assert_eq!(result, vec![deriver], "expected to get non empty response");
}
}
|
