refactor(tvix/store): move construct_services helper here

This takes three URLs, and constructs Arc'ed
{Blob,Directory,PathInfo}Service, allowing to remove some of the
boilerplate.

Change-Id: I40e7c2b551442ef2acdc543dfc87ab97e7c742bb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10484
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>

tvix/store/src/utils.rs

@@ -0,0 +1,35 @@
+use std::sync::Arc;
+
+use tvix_castore::{
+    blobservice::{self, BlobService},
+    directoryservice::{self, DirectoryService},
+};
+
+use crate::pathinfoservice::{self, PathInfoService};
+
+/// Construct the three 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>,
+) -> std::io::Result<(
+    Arc<dyn BlobService>,
+    Arc<dyn DirectoryService>,
+    Box<dyn PathInfoService>,
+)> {
+    let blob_service: Arc<dyn BlobService> = blobservice::from_addr(blob_service_addr.as_ref())
+        .await?
+        .into();
+    let directory_service: Arc<dyn DirectoryService> =
+        directoryservice::from_addr(directory_service_addr.as_ref())
+            .await?
+            .into();
+    let path_info_service = pathinfoservice::from_addr(
+        path_info_service_addr.as_ref(),
+        blob_service.clone(),
+        directory_service.clone(),
+    )
+    .await?;
+
+    Ok((blob_service, directory_service, path_info_service))
+}