CasObject + LocalClient (#5)

* CasObject with tests as cas_object crate

* LocalClient using CasObject

- all unit-tests are running successfully.

* Added back unit-tests from prev local_client.rs

* Removed unused variants for CasObjectError enum

* Removed unused use

* Add github actions (#4)

* Fixed clippy unhappiness

---------

Co-authored-by: Di Xiao <di@huggingface.co>

Cargo.toml

@@ -16,7 +16,7 @@ members = [
     "retry_strategy",
     "shard_client",
     "utils",
-    "xet_error",
+    "xet_error", "cas_object",
 ]
 
 [profile.release]

cas_client/Cargo.toml

@@ -9,6 +9,7 @@ strict = []
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+cas_object = {path = "../cas_object"}
 error_printer = {path = "../error_printer"}
 utils = {path = "../utils"}
 merkledb = {path = "../merkledb"}
@@ -56,3 +57,4 @@ trait-set = "0.3.0"
 lazy_static = "1.4.0"
 tokio-stream = { version = "0.1", features = ["net"] }
 rcgen = "0.12.0"
+rand = "0.8.5"

cas_client/src/error.rs

@@ -39,6 +39,9 @@ pub enum CasClientError {
     #[error("Hash Mismatch")]
     HashMismatch,
 
+    #[error("Internal IO Error: {0}")]
+    InternalIOError(#[from] std::io::Error),
+
     #[error("Other Internal Error: {0}")]
     InternalError(anyhow::Error),
 
@@ -59,6 +62,9 @@ pub enum CasClientError {
 
     #[error("Runtime Error (Temp files): {0}")]
     RuntimeErrorTempFileError(#[from] tempfile::PersistError),
+
+    #[error("Cas Object Error: {0}")]
+    CasObjectError(#[from] cas_object::error::CasObjectError),
 }
 
 // Define our own result type here (this seems to be the standard).