Update to async/await-enabled tokio

nix-rust/Cargo.toml

@@ -11,11 +11,11 @@ crate-type = ["cdylib"]
 [dependencies]
 tar = "0.4"
 libc = "0.2"
-futures-preview = { version = "=0.3.0-alpha.18", features = ["compat"] }
+futures-preview = { version = "=0.3.0-alpha.19", features = ["compat"] }
 #hyper = "0.12"
-reqwest = { version = "0.9", default-features = false, features = ["rustls-tls"] }
+reqwest = { version = "=0.10.0-alpha.2", default-features = false }
 http = "0.1"
-tokio = { version = "0.1", default-features = false }
+tokio = { version = "0.2.0-alpha.6", default-features = false, features = ["rt-full"] }
 lazy_static = "1.4"
 byteorder = "1.3"
 

nix-rust/local.mk

@@ -21,7 +21,7 @@ endif
 $(libnixrust_PATH): $(call rwildcard, $(d)/src, *.rs) $(d)/Cargo.toml
 	$(trace-gen) cd nix-rust && CARGO_HOME=$$(if [[ -d vendor ]]; then echo vendor; fi) \
 	$(libnixrust_BUILD_FLAGS) \
-	  RUSTC_BOOTSTRAP=1 cargo build $(RUST_MODE) $$(if [[ -d vendor ]]; then echo --offline; fi) \
+	  cargo build $(RUST_MODE) $$(if [[ -d vendor ]]; then echo --offline; fi) \
 	&& touch target/$(RUST_DIR)/libnixrust.$(SO_EXT)
 
 $(libnixrust_INSTALL_PATH): $(libnixrust_PATH)

nix-rust/src/c.rs

@@ -14,10 +14,9 @@ pub extern "C" fn unpack_tarfile(
 
 #[no_mangle]
 pub extern "C" fn rust_test() {
-    /*
     use crate::store::{self, Store};
-    use futures::future::{FutureExt, TryFutureExt};
     use std::path::Path;
+    use tokio::runtime::Runtime;
 
     let fut = async move {
         let store: Box<dyn Store> = Box::new(store::BinaryCacheStore::new(
@@ -36,17 +35,21 @@ pub extern "C" fn rust_test() {
         eprintln!("INFO = {:?}", info);
          */
 
-        let closure = store.compute_path_closure(vec![path].into_iter().collect()).await.unwrap();
+        let closure = store
+            .compute_path_closure(vec![path].into_iter().collect())
+            .await
+            .unwrap();
 
         eprintln!("CLOSURE = {:?}", closure.len());
-
-        Ok(())
     };
 
-    tokio::run(fut.boxed().compat());
-     */
+    let rt = Runtime::new().unwrap();
 
+    rt.block_on(fut);
+
+    /*
     let file = std::fs::File::open("test.nar").unwrap();
 
     crate::nar::parse(&mut std::io::BufReader::new(file)).unwrap();
+    */
 }

nix-rust/src/lib.rs

@@ -1,5 +1,3 @@
-#![feature(await_macro, async_await)]
-
 #[macro_use]
 extern crate lazy_static;
 

nix-rust/src/store/binary_cache_store.rs

@@ -1,6 +1,5 @@
-use super::{Store, StorePath, PathInfo};
+use super::{PathInfo, Store, StorePath};
 use crate::Error;
-use futures::compat::Future01CompatExt;
 
 pub struct BinaryCacheStore {
     base_uri: String,
@@ -27,22 +26,17 @@ impl Store for BinaryCacheStore {
         let store_dir = self.store_dir().to_string();
 
         Box::pin(async move {
-            let response = client
-                .get(&uri)
-                .send()
-                .compat()
-                .await?;
+            let response = client.get(&uri).send().await?;
 
-            if response.status() == reqwest::StatusCode::NOT_FOUND || response.status() == reqwest::StatusCode::FORBIDDEN {
+            if response.status() == reqwest::StatusCode::NOT_FOUND
+                || response.status() == reqwest::StatusCode::FORBIDDEN
+            {
                 return Err(Error::InvalidPath(path));
             }
 
-            let mut response = response.error_for_status()?;
+            let response = response.error_for_status()?;
 
-            let body = response
-                .text()
-                .compat()
-                .await?;
+            let body = response.text().await?;
 
             PathInfo::parse_nar_info(&body, &store_dir)
         })

shell.nix

@@ -1,6 +1,6 @@
 { useClang ? false }:
 
-with import (builtins.fetchTarball https://github.com/NixOS/nixpkgs-channels/archive/nixos-19.09.tar.gz) {};
+with import (builtins.fetchTarball https://github.com/NixOS/nixpkgs/archive/bb1013511e1e5edcf314df8321acf2f3c536df0d.tar.gz) {};
 
 with import ./release-common.nix { inherit pkgs; };