Preparing for 0.2 release (#75)

* Added errors and derive crate to workspace and exported derive crate from errors crate

Author: sapessi

Cargo.lock

@@ -3,5 +3,7 @@ members = [
     "lambda-runtime-client",
     "lambda-runtime-core",
     "lambda-runtime",
-    "lambda-http"
+    "lambda-http",
+    "lambda-runtime-errors",
+    "lambda-runtime-errors-derive"
 ]

Cargo.toml

@@ -7,7 +7,7 @@ keywords = ["AWS", "Lambda", "Runtime", "Rust"]
 license = "Apache-2.0"
 homepage = "https://github.com/awslabs/aws-lambda-rust-runtime"
 repository = "https://github.com/awslabs/aws-lambda-rust-runtime"
-documentation = "https://docs.rs/lambda_runtime"
+documentation = "https://docs.rs/lambda_runtime_core"
 edition = "2018"
 
 [dependencies]

lambda-runtime-core/Cargo.toml

@@ -8,7 +8,7 @@ keywords = ["AWS", "Lambda", "Runtime", "Rust"]
 license = "Apache-2.0"
 homepage = "https://github.com/awslabs/aws-lambda-rust-runtime"
 repository = "https://github.com/awslabs/aws-lambda-rust-runtime"
-documentation = "https://docs.rs/lambda_runtime"
+documentation = "https://docs.rs/lambda_runtime_errors_derive"
 
 [dependencies]
 syn = "^0.15"

lambda-runtime-errors-derive/Cargo.toml

@@ -8,12 +8,13 @@ keywords = ["AWS", "Lambda", "Runtime", "Rust"]
 license = "Apache-2.0"
 homepage = "https://github.com/awslabs/aws-lambda-rust-runtime"
 repository = "https://github.com/awslabs/aws-lambda-rust-runtime"
-documentation = "https://docs.rs/lambda_runtime"
+documentation = "https://docs.rs/lambda_runtime_errors"
 
 [dependencies]
 log = "^0.4"
 failure = "^0.1"
 serde_json = "^1"
+lambda_runtime_errors_derive = { path = "../lambda-runtime-errors-derive", version = "^0.1" }
 
 [dev-dependencies]
 lambda_runtime_core = { path = "../lambda-runtime-core", version = "^0.1"}

lambda-runtime-errors/Cargo.toml

@@ -1,9 +1,21 @@
 //! The Lambda runtime errors crate defines the `LambdaErrorExt` trait
 //! that can be used by libriaries to return errors compatible with the
 //! AWS Lambda Rust runtime.
+//!
+//! This crate also exports the `lambda_runtime_errors_derive` crate to
+//! derive the `LambdaErrorExt` trait.
+//!
+//! ```rust,no-run
+//! use lambda_runtime_errors::*;
+//!
+//! // the generated error_type() method returns "crate::LambdaError"
+//! #[derive(LambdaErrorExt)]
+//! struct LambdaError;
+//! ```
 mod error_ext_impl;
 
 pub use crate::error_ext_impl::*;
+pub use lambda_runtime_errors_derive::*;
 
 use failure::{format_err, Compat, Error, Fail};
 use std::fmt;