imp(serde):use proc_macros and serde-derive

With Rust 1.15, proc macros have been stabilized. Therefore
custom build scripts are not required anymore.

This commit removes all the previous machinery and the
need for nightly.

.travis.yml

@@ -5,25 +5,11 @@ os:
 rust:
   - stable
   - nightly
-matrix:
-  exclude:
-    - rust: stable
-      env: FEATURE=nightly
-  allow_failures:
-    - os: osx
-    - rust: nightly
-      env: FEATURE=nightly
 before_script:
   - pip install 'travis-cargo<0.2' --user  && export PATH=$HOME/Library/Python/2.7/bin:$HOME/.local/bin:$PATH
 script:
-  - travis-cargo test -- --features $FEATURE --no-default-features
+  - travis-cargo test
   - travis-cargo build -- --manifest-path examples/drive_example/Cargo.toml
   - travis-cargo build -- --manifest-path examples/service_account/Cargo.toml
 after_success:
   - "[[ $TRAVIS_OS_NAME = linux ]] && travis-cargo --only stable coveralls"
-env:
-  global:
-    - TRAVIS_CARGO_NIGHTLY_FEATURE=""
-  matrix:
-    - FEATURE=with-serde-codegen
-    - FEATURE=nightly

Cargo.toml

@@ -8,7 +8,6 @@ description = "An oauth2 implementation, providing the 'device', 'service accoun
 documentation = "https://docs.rs/yup-oauth2/"
 keywords = ["google", "oauth", "v2"]
 license = "MIT OR Apache-2.0"
-build = "src/build.rs"
 
 [dependencies]
 base64 = "0.2"
@@ -17,19 +16,11 @@ hyper = "0.10.2"
 itertools = "0.4"
 log = "0.3"
 openssl = "0.9.6"
-serde = "0.8"
-serde_json = "0.8"
-serde_derive = { version = "0.8", optional = true }
+serde = "0.9"
+serde_json = "0.9"
+serde_derive = "0.9"
 url = "0.5"
 
-[features]
-default = ["with-serde-codegen"]
-nightly = ["serde_derive"]
-with-serde-codegen = ["serde_codegen"]
-
-[build-dependencies]
-serde_codegen = { version = "^ 0.8", optional = true }
-
 [dev-dependencies]
 getopts = "0.2"
 open = "1.1"

src/lib.rs

@@ -35,8 +35,6 @@
 //! authorize future API requests to the same scopes.
 //!
 //! ```test_harness,no_run
-//! #![cfg_attr(feature = "nightly", feature(proc_macro))]
-//! #[cfg(feature = "nightly")]
 //! #[macro_use]
 //! extern crate serde_derive;
 //! 
@@ -67,10 +65,41 @@
 //! # }
 //! ```
 //!
-#![cfg_attr(feature = "nightly", feature(proc_macro))]
+#[macro_use]
+extern crate serde_derive;
 
-#[cfg(feature = "nightly")]
-include!("lib.rs.in");
+extern crate serde;
+extern crate serde_json;
+
+extern crate base64;
+extern crate chrono;
+extern crate openssl;
+extern crate hyper;
+#[cfg(test)]
+extern crate log;
+#[cfg(test)]
+extern crate yup_hyper_mock;
+extern crate url;
+extern crate itertools;
+
+mod authenticator;
+mod authenticator_delegate;
+mod device;
+mod helper;
+mod installed;
+mod refresh;
+mod service_account;
+mod storage;
+mod types;
+
+pub use device::{GOOGLE_DEVICE_CODE_URL, DeviceFlow};
+pub use refresh::{RefreshFlow, RefreshResult};
+pub use types::{Token, FlowType, ApplicationSecret, ConsoleApplicationSecret, Scheme, TokenType};
+pub use installed::{InstalledFlow, InstalledFlowReturnMethod};
+pub use storage::{TokenStorage, NullStorage, MemoryStorage, DiskTokenStorage};
+pub use authenticator::{Authenticator, Retry, GetToken};
+pub use authenticator_delegate::{AuthenticatorDelegate, DefaultAuthenticatorDelegate, PollError,
+                                 PollInformation};
+pub use helper::*;
+pub use service_account::*;
 
-#[cfg(feature = "with-serde-codegen")]
-include!(concat!(env!("OUT_DIR"), "/lib.rs"));