v12.2.0 (Azure#411)

* Deserialize additionalInfo in ARM error

* Allow a new authorizer to be created from a configuration file by specifying a resource instead of a base url.

This enables resource like KeyVault and Container Registry to use an authorizer configured from a configuration file.

* [WIP] Using the Context from the timeout if provided (Azure#315)

* Using the timeout from the context if available

- Makes PollingDuration optional

* Renaming the registration start time

* Making PollingDuration not a pointer

* fixing a broken reference

* Add NewAuthorizerFromCli method which uses Azure CLI to obtain a token for the currently logged in user, for  local development scenarios. (Azure#316)

* Adding User assigned identity support for the MSIConfig authorizor (Azure#332)

* Adding ByteSlicePtr (Azure#399)

* Adding a new `WithXML` method (Azure#402)

* Add HTTP status code response helpers (Azure#403)

Added IsHTTPStatus() and HasHTTPStatus() methods to autorest.Response

* adding a new preparer for `MERGE` used in the Storage API's (Azure#406)

* New Preparer/Responder for `Unmarshalling Bytes` (Azure#407)

* New Preparer: WithBytes

* New Responder: `ByUnmarshallingBytes`

* Reusing the bytes, rather than copying them

* Fixing the broken test / switching to read the bytes directly

* Support HTTP-Date in Retry-After header (Azure#410)

RFC specifies Retry-After header can be integer value expressing seconds
or an HTTP-Date indicating when to try again.
Removed superfluous check for HTTP status code.

* v12.2.0

CHANGELOG.md

@@ -1,5 +1,17 @@
 # CHANGELOG
 
+## v12.2.0
+
+### New Features
+
+- Added `autorest.WithXML`, `autorest.AsMerge`, `autorest.WithBytes` preparer decorators.
+- Added `autorest.ByUnmarshallingBytes` response decorator.
+- Added `Response.IsHTTPStatus` and `Response.HasHTTPStatus` helper methods for inspecting HTTP status code in `autorest.Response` types.
+
+### Bug Fixes
+
+- `autorest.DelayWithRetryAfter` now supports HTTP-Dates in the `Retry-After` header and is not limited to just 429 status codes.
+
 ## v12.1.0
 
 ### New Features

autorest/version.go

@@ -19,7 +19,7 @@ import (
 	"runtime"
 )
 
-const number = "v12.1.0"
+const number = "v12.2.0"
 
 var (
 	userAgent = fmt.Sprintf("Go/%s (%s-%s) go-autorest/%s",