add hyper-011 cargo feature to ease migration

.travis.yml

@@ -14,6 +14,13 @@ matrix:
         - rust: nightly
           env: FEATURES=""
 
+        - rust: stable
+          env: FEATURES="--features hyper-011"
+        - rust: beta
+          env: FEATURES="--features hyper-011"
+        - rust: nightly
+          env: FEATURES="--features hyper-011"
+
         # minimum version
         - rust: 1.21.0
           script: cargo build

Cargo.toml

@@ -18,6 +18,7 @@ encoding_rs = "0.7"
 futures = "0.1.21"
 http = "0.1.5"
 hyper = "0.12.2"
+hyper-old-types = { version = "0.11", optional = true, features = ["compat"] }
 hyper-tls = "0.3"
 libflate = "0.1.11"
 log = "0.4"
@@ -38,4 +39,5 @@ error-chain = "0.10"
 serde_derive = "1.0"
 
 [features]
-
+default = []
+hyper-011 = ["hyper-old-types"]

src/async_impl/request.rs

@@ -122,6 +122,31 @@ impl RequestBuilder {
         self
     }
 
+    /// Set a header with a type implementing hyper v0.11's `Header` trait.
+    ///
+    /// This method is provided to ease migration, and requires the `hyper-011`
+    /// Cargo feature enabled on `reqwest`.
+    #[cfg(feature = "hyper-011")]
+    pub fn header_011<H>(self, header: H) -> RequestBuilder
+    where
+        H: ::hyper_011::header::Header,
+    {
+        let mut headers = ::hyper_011::Headers::new();
+        headers.set(header);
+        let map = ::header::HeaderMap::from(headers);
+        self.headers(map)
+    }
+
+    /// Set multiple headers using hyper v0.11's `Headers` map.
+    ///
+    /// This method is provided to ease migration, and requires the `hyper-011`
+    /// Cargo feature enabled on `reqwest`.
+    #[cfg(feature = "hyper-011")]
+    pub fn headers_011(self, headers: ::hyper_011::Headers) -> RequestBuilder {
+        let map = ::header::HeaderMap::from(headers);
+        self.headers(map)
+    }
+
     /// Enable HTTP basic authentication.
     pub fn basic_auth<U, P>(self, username: U, password: Option<P>) -> RequestBuilder
     where

src/lib.rs

@@ -131,6 +131,8 @@ extern crate encoding_rs;
 extern crate futures;
 extern crate http;
 extern crate hyper;
+#[cfg(feature = "hyper-011")]
+pub extern crate hyper_old_types as hyper_011;
 extern crate hyper_tls;
 #[macro_use]
 extern crate log;

src/request.rs

@@ -175,6 +175,31 @@ impl RequestBuilder {
         self
     }
 
+    /// Set a header with a type implementing hyper v0.11's `Header` trait.
+    ///
+    /// This method is provided to ease migration, and requires the `hyper-011`
+    /// Cargo feature enabled on `reqwest`.
+    #[cfg(feature = "hyper-011")]
+    pub fn header_011<H>(self, header: H) -> RequestBuilder
+    where
+        H: ::hyper_011::header::Header,
+    {
+        let mut headers = ::hyper_011::Headers::new();
+        headers.set(header);
+        let map = ::header::HeaderMap::from(headers);
+        self.headers(map)
+    }
+
+    /// Set multiple headers using hyper v0.11's `Headers` map.
+    ///
+    /// This method is provided to ease migration, and requires the `hyper-011`
+    /// Cargo feature enabled on `reqwest`.
+    #[cfg(feature = "hyper-011")]
+    pub fn headers_011(self, headers: ::hyper_011::Headers) -> RequestBuilder {
+        let map = ::header::HeaderMap::from(headers);
+        self.headers(map)
+    }
+
     /// Enable HTTP basic authentication.
     ///
     /// ```rust