auth: add new authentication source: GitHub, including GitHub Enterprise (#5340)

* Add new Authentication Source: GitHub, including GitHub Enterprise.

* Add vendor dependencies.

1 files changed, 89 insertions, 0 deletions

diff --git a/vendor/github.com/google/go-github/github/repos_forks.go b/vendor/github.com/google/go-github/github/repos_forks.go
new file mode 100644
index 00000000..d0bff544
--- /dev/null
+++ b/vendor/github.com/google/go-github/github/repos_forks.go
@@ -0,0 +1,89 @@
+// Copyright 2013 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 (
+	"context"
+	"fmt"
+)
+
+// RepositoryListForksOptions specifies the optional parameters to the
+// RepositoriesService.ListForks method.
+type RepositoryListForksOptions struct {
+	// How to sort the forks list. Possible values are: newest, oldest,
+	// watchers. Default is "newest".
+	Sort string `url:"sort,omitempty"`
+
+	ListOptions
+}
+
+// ListForks lists the forks of the specified repository.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/forks/#list-forks
+func (s *RepositoriesService) ListForks(ctx context.Context, owner, repo string, opt *RepositoryListForksOptions) ([]*Repository, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/forks", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when topics API fully launches.
+	req.Header.Set("Accept", mediaTypeTopicsPreview)
+
+	var repos []*Repository
+	resp, err := s.client.Do(ctx, req, &repos)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return repos, resp, nil
+}
+
+// RepositoryCreateForkOptions specifies the optional parameters to the
+// RepositoriesService.CreateFork method.
+type RepositoryCreateForkOptions struct {
+	// The organization to fork the repository into.
+	Organization string `url:"organization,omitempty"`
+}
+
+// CreateFork creates a fork of the specified repository.
+//
+// This method might return an *AcceptedError and a status code of
+// 202. This is because this is the status that GitHub returns to signify that
+// it is now computing creating the fork in a background task. In this event,
+// the Repository value will be returned, which includes the details about the pending fork.
+// A follow up request, after a delay of a second or so, should result
+// in a successful request.
+//
+// GitHub API docs: https://developer.github.com/v3/repos/forks/#create-a-fork
+func (s *RepositoriesService) CreateFork(ctx context.Context, owner, repo string, opt *RepositoryCreateForkOptions) (*Repository, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/forks", owner, repo)
+	u, err := addOptions(u, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest("POST", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	fork := new(Repository)
+	resp, err := s.client.Do(ctx, req, fork)
+	if _, ok := err.(*AcceptedError); ok {
+		return fork, resp, err
+	}
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return fork, resp, nil
+}