feat(sdk,core): Use async runtime instead of blocking.

Default to using async runtime instead of blocking. I.e.

```rust
fn main() -> eyre::Result<()> {
  // ...

  client.container().from("rust").publish("somewhere")?;

  // ...
}

// to

async fn main() -> eyre::Result<()> {
  // ...

  client.container().from("rust").publish("somewhere").await?;

  // ...
}
```

crates/dagger-sdk/examples/build-the-application/main.rs

@@ -1,6 +1,7 @@
 use dagger_sdk::HostDirectoryOpts;
 
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let client = dagger_sdk::connect()?;
 
     let host_source_dir = client.host().directory_opts(
@@ -14,7 +15,7 @@ fn main() -> eyre::Result<()> {
     let source = client
         .container()
         .from("node:16")
-        .with_mounted_directory("/src", host_source_dir.id()?);
+        .with_mounted_directory("/src", host_source_dir.id().await?);
 
     let runner = source
         .with_workdir("/src")
@@ -28,7 +29,7 @@ fn main() -> eyre::Result<()> {
 
     let _ = build_dir.export("./build");
 
-    let entries = build_dir.entries();
+    let entries = build_dir.entries().await;
 
     println!("build dir contents: \n {:?}", entries);
 

crates/dagger-sdk/examples/caching/main.rs

@@ -1,6 +1,7 @@
 use rand::Rng;
 
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let client = dagger_sdk::connect()?;
 
     let host_source_dir = client.host().directory_opts(
@@ -10,12 +11,12 @@ fn main() -> eyre::Result<()> {
             .build()?,
     );
 
-    let node_cache = client.cache_volume("node").id()?;
+    let node_cache = client.cache_volume("node").id().await?;
 
     let source = client
         .container()
         .from("node:16")
-        .with_mounted_directory("/src", host_source_dir.id()?)
+        .with_mounted_directory("/src", host_source_dir.id().await?)
         .with_mounted_cache("/src/node_modules", node_cache);
 
     let runner = source
@@ -33,8 +34,8 @@ fn main() -> eyre::Result<()> {
     let ref_ = client
         .container()
         .from("nginx")
-        .with_directory("/usr/share/nginx/html", build_dir.id()?)
-        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>()))?;
+        .with_directory("/usr/share/nginx/html", build_dir.id().await?)
+        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>())).await?;
 
     println!("published image to: {}", ref_);
 

crates/dagger-sdk/examples/existing-dockerfile/main.rs

@@ -1,6 +1,7 @@
 use rand::Rng;
 
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let mut rng = rand::thread_rng();
 
     let client = dagger_sdk::connect()?;
@@ -11,8 +12,8 @@ fn main() -> eyre::Result<()> {
 
     let ref_ = client
         .container()
-        .build(context_dir.id()?)
-        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>()))?;
+        .build(context_dir.id().await?)
+        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>())).await?;
 
     println!("published image to: {}", ref_);
 

crates/dagger-sdk/examples/first-pipeline/main.rs

@@ -1,11 +1,12 @@
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let client = dagger_sdk::connect()?;
 
     let version = client
         .container()
         .from("golang:1.19")
-        .with_exec(vec!["go", "version".into()])
-        .stdout()?;
+        .with_exec(vec!["go", "version"])
+        .stdout().await?;
 
     println!("Hello from Dagger and {}", version.trim());
 

crates/dagger-sdk/examples/multi-stage-build/main.rs

@@ -1,7 +1,8 @@
 use dagger_sdk::HostDirectoryOpts;
 use rand::Rng;
 
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let client = dagger_sdk::connect()?;
 
     let host_source_dir = client.host().directory_opts(
@@ -15,7 +16,7 @@ fn main() -> eyre::Result<()> {
     let source = client
         .container()
         .from("node:16")
-        .with_mounted_directory("/src", host_source_dir.id()?);
+        .with_mounted_directory("/src", host_source_dir.id().await?);
 
     let runner = source
         .with_workdir("/src")
@@ -32,8 +33,9 @@ fn main() -> eyre::Result<()> {
     let ref_ = client
         .container()
         .from("nginx")
-        .with_directory("/usr/share/nginx/html", build_dir.id()?)
-        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>()))?;
+        .with_directory("/usr/share/nginx/html", build_dir.id().await?)
+        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>()))
+        .await?;
 
     println!("published image to: {}", ref_);
 

crates/dagger-sdk/examples/publish-the-application/main.rs

@@ -1,7 +1,8 @@
 use dagger_sdk::HostDirectoryOpts;
 use rand::Rng;
 
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let client = dagger_sdk::connect()?;
     let output = "examples/publish-the-application/app/build";
 
@@ -16,7 +17,7 @@ fn main() -> eyre::Result<()> {
     let source = client
         .container()
         .from("node:16")
-        .with_mounted_directory("/src", host_source_dir.id()?);
+        .with_mounted_directory("/src", host_source_dir.id().await?);
 
     let runner = source
         .with_workdir("/src")
@@ -36,9 +37,9 @@ fn main() -> eyre::Result<()> {
         .from("nginx")
         .with_directory(
             "/usr/share/nginx/html",
-            client.host().directory(output).id()?,
+            client.host().directory(output).id().await?,
         )
-        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>()))?;
+        .publish(format!("ttl.sh/hello-dagger-rs-{}:1h", rng.gen::<u64>())).await?;
 
     println!("published image to: {}", ref_);
 

crates/dagger-sdk/examples/test-the-application/main.rs

@@ -1,6 +1,7 @@
 use dagger_sdk::HostDirectoryOpts;
 
-fn main() -> eyre::Result<()> {
+#[tokio::main]
+async fn main() -> eyre::Result<()> {
     let client = dagger_sdk::connect()?;
 
     let host_source_dir = client.host().directory_opts(
@@ -14,7 +15,7 @@ fn main() -> eyre::Result<()> {
     let source = client
         .container()
         .from("node:16")
-        .with_mounted_directory("/src", host_source_dir.id()?);
+        .with_mounted_directory("/src", host_source_dir.id().await?);
 
     let runner = source
         .with_workdir("/src")
@@ -22,7 +23,7 @@ fn main() -> eyre::Result<()> {
 
     let out = runner
         .with_exec(vec!["npm", "test", "--", "--watchAll=false"])
-        .stderr()?;
+        .stderr().await?;
 
     println!("{}", out);