Include proto macros (#13)

README.md

@@ -54,7 +54,7 @@ $ cargo +beta build
 
 ```rust
 pub mod hello_world {
-    include!(concat!(env!("OUT_DIR"), "/helloworld.rs"));
+    tonic::include_proto!("helloworld");
 }
 
 use hello_world::{client::GreeterClient, HelloRequest};
@@ -81,7 +81,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 use tonic::{transport::Server, Request, Response, Status};
 
 pub mod hello_world {
-    include!(concat!(env!("OUT_DIR"), "/helloworld.rs"));
+    tonic::include_proto!("helloworld");
 }
 
 use hello_world::{

tonic-examples/src/authentication/client.rs

@@ -1,5 +1,5 @@
 pub mod pb {
-    include!(concat!(env!("OUT_DIR"), "/grpc.examples.echo.rs"));
+    tonic::include_proto!("grpc.examples.echo");
 }
 
 use http::header::HeaderValue;

tonic-examples/src/authentication/server.rs

@@ -1,5 +1,5 @@
 pub mod pb {
-    include!(concat!(env!("OUT_DIR"), "/grpc.examples.echo.rs"));
+    tonic::include_proto!("grpc.examples.echo");
 }
 
 use pb::{EchoRequest, EchoResponse};

tonic-examples/src/helloworld/client.rs

@@ -1,5 +1,5 @@
 pub mod hello_world {
-    include!(concat!(env!("OUT_DIR"), "/helloworld.rs"));
+    tonic::include_proto!("helloworld");
 }
 
 use hello_world::{client::GreeterClient, HelloRequest};

tonic-examples/src/helloworld/server.rs

@@ -1,7 +1,7 @@
 use tonic::{transport::Server, Request, Response, Status};
 
 pub mod hello_world {
-    include!(concat!(env!("OUT_DIR"), "/helloworld.rs"));
+    tonic::include_proto!("helloworld");
 }
 
 use hello_world::{

tonic-examples/src/load_balance/client.rs

@@ -1,5 +1,5 @@
 pub mod pb {
-    include!(concat!(env!("OUT_DIR"), "/grpc.examples.echo.rs"));
+    tonic::include_proto!("grpc.examples.echo");
 }
 
 use pb::{client::EchoClient, EchoRequest};
@@ -15,7 +15,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let mut client = EchoClient::new(channel);
 
-    for _ in 0..12 {
+    for _ in 0..12usize {
         let request = tonic::Request::new(EchoRequest {
             message: "hello".into(),
         });

tonic-examples/src/load_balance/server.rs

@@ -1,5 +1,5 @@
 pub mod pb {
-    include!(concat!(env!("OUT_DIR"), "/grpc.examples.echo.rs"));
+    tonic::include_proto!("grpc.examples.echo");
 }
 
 use pb::{EchoRequest, EchoResponse};

tonic-examples/src/routeguide/client.rs

@@ -4,8 +4,8 @@ use std::time::{Duration, Instant};
 use tokio::timer::Interval;
 use tonic::Request;
 
-mod route_guide {
-    include!(concat!(env!("OUT_DIR"), "/routeguide.rs"));
+pub mod route_guide {
+    tonic::include_proto!("routeguide");
 }
 
 use route_guide::client::RouteGuideClient;

tonic-examples/src/routeguide/server.rs

@@ -11,7 +11,7 @@ use tonic::transport::Server;
 use tonic::{Request, Response, Status};
 
 pub mod routeguide {
-    include!(concat!(env!("OUT_DIR"), "/routeguide.rs"));
+    tonic::include_proto!("routeguide");
 }
 
 use routeguide::{server, Feature, Point, Rectangle, RouteNote, RouteSummary};

tonic-examples/src/tls/client.rs

@@ -1,5 +1,5 @@
 pub mod pb {
-    include!(concat!(env!("OUT_DIR"), "/grpc.examples.echo.rs"));
+    tonic::include_proto!("/grpc.examples.echo");
 }
 
 use pb::{client::EchoClient, EchoRequest};

tonic-examples/src/tls/server.rs

@@ -1,5 +1,5 @@
 pub mod pb {
-    include!(concat!(env!("OUT_DIR"), "/grpc.examples.echo.rs"));
+    tonic::include_proto!("/grpc.examples.echo");
 }
 
 use pb::{EchoRequest, EchoResponse};

tonic/src/lib.rs

@@ -77,6 +77,7 @@ pub mod server;
 #[cfg(feature = "transport")]
 pub mod transport;
 
+mod macros;
 mod request;
 mod response;
 mod status;

tonic/src/macros.rs

@@ -0,0 +1,17 @@
+/// Include generated proto server and client items.
+///
+/// # Example
+/// ```rust,no_run
+/// pub mod hello_world {
+///    tonic::include_proto!("helloworld");
+/// }
+/// ```
+#[macro_export]
+macro_rules! include_proto {
+    ($package: tt) => {
+        include!(concat!(
+            env!("OUT_DIR"),
+            concat!("/", $package, ".rs")
+        ));
+    };
+}