Add support for PullRequestReviewEvent webhook.

Fixes #450.
Closes #451.

Change-Id: Iebdd2bd35a8ddd1346b2268e4e837d6145e990dc

github/activity_events.go

@@ -69,6 +69,8 @@ func (e *Event) Payload() (payload interface{}) {
 		payload = &PublicEvent{}
 	case "PullRequestEvent":
 		payload = &PullRequestEvent{}
+	case "PullRequestReviewEvent":
+		payload = &PullRequestReviewEvent{}
 	case "PullRequestReviewCommentEvent":
 		payload = &PullRequestReviewCommentEvent{}
 	case "PushEvent":

github/event_types.go

@@ -327,6 +327,26 @@ type PullRequestEvent struct {
 	Sender  *User       `json:"sender,omitempty"`
 }
 
+// PullRequestReviewEvent is triggered when a review is submitted on a pull
+// request.
+// The Webhook event name is "pull_request_review".
+//
+// GitHub docs: https://developer.github.com/v3/activity/events/types/#pullrequestreviewevent
+type PullRequestReviewEvent struct {
+	// Action is always "submitted".
+	Action      *string            `json:"action,omitempty"`
+	Review      *PullRequestReview `json:"review,omitempty"`
+	PullRequest *PullRequest       `json:"pull_request,omitempty"`
+
+	// The following fields are only populated by Webhook events.
+	Repo   *Repository `json:"repository,omitempty"`
+	Sender *User       `json:"sender,omitempty"`
+
+	// The following field is only present when the webhook is triggered on
+	// a repository belonging to an organization.
+	Organization *Organization `json:"organization,omitempty"`
+}
+
 // PullRequestReviewCommentEvent is triggered when a comment is created on a
 // portion of the unified diff of a pull request.
 // The Webhook event name is "pull_request_review_comment".

github/messages.go

@@ -55,6 +55,7 @@ var (
 		"milestone":                             "MilestoneEvent",
 		"page_build":                            "PageBuildEvent",
 		"public":                                "PublicEvent",
+		"pull_request_review":                   "PullRequestReviewEvent",
 		"pull_request_review_comment":           "PullRequestReviewCommentEvent",
 		"pull_request":                          "PullRequestEvent",
 		"push":                                  "PushEvent",

github/messages_test.go

@@ -152,6 +152,10 @@ func TestParseWebHook(t *testing.T) {
 			payload:     &PullRequestEvent{},
 			messageType: "pull_request",
 		},
+		{
+			payload:     &PullRequestReviewEvent{},
+			messageType: "pull_request_review",
+		},
 		{
 			payload:     &PullRequestReviewCommentEvent{},
 			messageType: "pull_request_review_comment",

github/pulls_reviews.go

@@ -0,0 +1,19 @@
+// Copyright 2016 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package github
+
+import "time"
+
+// PullRequestReview represents a review of a pull request.
+type PullRequestReview struct {
+	ID          *int       `json:"id,omitempty"`
+	User        *User      `json:"user,omitempty"`
+	Body        *string    `json:"body,omitempty"`
+	SubmittedAt *time.Time `json:"submitted_at,omitempty"`
+
+	// State can be "approved", "rejected", or "commented".
+	State *string `json:"state,omitempty"`
+}