1 files changed, 233 insertions, 0 deletions
diff --git a/vendor/github.com/google/go-github/github/git_refs.go b/vendor/github.com/google/go-github/github/git_refs.go
new file mode 100644
index 00000000..0947d866
--- /dev/null
+++ b/vendor/github.com/google/go-github/github/git_refs.go
@@ -0,0 +1,233 @@
+// 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"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strings"
+)
+
+// Reference represents a GitHub reference.
+type Reference struct {
+	Ref    *string    `json:"ref"`
+	URL    *string    `json:"url"`
+	Object *GitObject `json:"object"`
+	NodeID *string    `json:"node_id,omitempty"`
+}
+
+func (r Reference) String() string {
+	return Stringify(r)
+}
+
+// GitObject represents a Git object.
+type GitObject struct {
+	Type *string `json:"type"`
+	SHA  *string `json:"sha"`
+	URL  *string `json:"url"`
+}
+
+func (o GitObject) String() string {
+	return Stringify(o)
+}
+
+// createRefRequest represents the payload for creating a reference.
+type createRefRequest struct {
+	Ref *string `json:"ref"`
+	SHA *string `json:"sha"`
+}
+
+// updateRefRequest represents the payload for updating a reference.
+type updateRefRequest struct {
+	SHA   *string `json:"sha"`
+	Force *bool   `json:"force"`
+}
+
+// GetRef fetches a single Reference object for a given Git ref.
+// If there is no exact match, GetRef will return an error.
+//
+// Note: The GitHub API can return multiple matches.
+// If you wish to use this functionality please use the GetRefs() method.
+//
+// GitHub API docs: https://developer.github.com/v3/git/refs/#get-a-reference
+func (s *GitService) GetRef(ctx context.Context, owner string, repo string, ref string) (*Reference, *Response, error) {
+	ref = strings.TrimPrefix(ref, "refs/")
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, ref)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGraphQLNodeIDPreview)
+
+	r := new(Reference)
+	resp, err := s.client.Do(ctx, req, r)
+	if _, ok := err.(*json.UnmarshalTypeError); ok {
+		// Multiple refs, means there wasn't an exact match.
+		return nil, resp, errors.New("no exact match found for this ref")
+	} else if err != nil {
+		return nil, resp, err
+	}
+
+	return r, resp, nil
+}
+
+// GetRefs fetches a slice of Reference objects for a given Git ref.
+// If there is an exact match, only that ref is returned.
+// If there is no exact match, GitHub returns all refs that start with ref.
+// If returned error is nil, there will be at least 1 ref returned.
+// For example:
+//
+// 	"heads/featureA" -> ["refs/heads/featureA"]                         // Exact match, single ref is returned.
+// 	"heads/feature"  -> ["refs/heads/featureA", "refs/heads/featureB"]  // All refs that start with ref.
+// 	"heads/notexist" -> []                                              // Returns an error.
+//
+// GitHub API docs: https://developer.github.com/v3/git/refs/#get-a-reference
+func (s *GitService) GetRefs(ctx context.Context, owner string, repo string, ref string) ([]*Reference, *Response, error) {
+	ref = strings.TrimPrefix(ref, "refs/")
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, ref)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGraphQLNodeIDPreview)
+
+	var rawJSON json.RawMessage
+	resp, err := s.client.Do(ctx, req, &rawJSON)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	// Prioritize the most common case: a single returned ref.
+	r := new(Reference)
+	singleUnmarshalError := json.Unmarshal(rawJSON, r)
+	if singleUnmarshalError == nil {
+		return []*Reference{r}, resp, nil
+	}
+
+	// Attempt to unmarshal multiple refs.
+	var rs []*Reference
+	multipleUnmarshalError := json.Unmarshal(rawJSON, &rs)
+	if multipleUnmarshalError == nil {
+		if len(rs) == 0 {
+			return nil, resp, fmt.Errorf("unexpected response from GitHub API: an array of refs with length 0")
+		}
+		return rs, resp, nil
+	}
+
+	return nil, resp, fmt.Errorf("unmarshalling failed for both single and multiple refs: %s and %s", singleUnmarshalError, multipleUnmarshalError)
+}
+
+// ReferenceListOptions specifies optional parameters to the
+// GitService.ListRefs method.
+type ReferenceListOptions struct {
+	Type string `url:"-"`
+
+	ListOptions
+}
+
+// ListRefs lists all refs in a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/git/refs/#get-all-references
+func (s *GitService) ListRefs(ctx context.Context, owner, repo string, opt *ReferenceListOptions) ([]*Reference, *Response, error) {
+	var u string
+	if opt != nil && opt.Type != "" {
+		u = fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, opt.Type)
+	} else {
+		u = fmt.Sprintf("repos/%v/%v/git/refs", 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 this API fully launches.
+	req.Header.Set("Accept", mediaTypeGraphQLNodeIDPreview)
+
+	var rs []*Reference
+	resp, err := s.client.Do(ctx, req, &rs)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return rs, resp, nil
+}
+
+// CreateRef creates a new ref in a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/git/refs/#create-a-reference
+func (s *GitService) CreateRef(ctx context.Context, owner string, repo string, ref *Reference) (*Reference, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/git/refs", owner, repo)
+	req, err := s.client.NewRequest("POST", u, &createRefRequest{
+		// back-compat with previous behavior that didn't require 'refs/' prefix
+		Ref: String("refs/" + strings.TrimPrefix(*ref.Ref, "refs/")),
+		SHA: ref.Object.SHA,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGraphQLNodeIDPreview)
+
+	r := new(Reference)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return r, resp, nil
+}
+
+// UpdateRef updates an existing ref in a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/git/refs/#update-a-reference
+func (s *GitService) UpdateRef(ctx context.Context, owner string, repo string, ref *Reference, force bool) (*Reference, *Response, error) {
+	refPath := strings.TrimPrefix(*ref.Ref, "refs/")
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, refPath)
+	req, err := s.client.NewRequest("PATCH", u, &updateRefRequest{
+		SHA:   ref.Object.SHA,
+		Force: &force,
+	})
+	if err != nil {
+		return nil, nil, err
+	}
+
+	// TODO: remove custom Accept header when this API fully launches.
+	req.Header.Set("Accept", mediaTypeGraphQLNodeIDPreview)
+
+	r := new(Reference)
+	resp, err := s.client.Do(ctx, req, r)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return r, resp, nil
+}
+
+// DeleteRef deletes a ref from a repository.
+//
+// GitHub API docs: https://developer.github.com/v3/git/refs/#delete-a-reference
+func (s *GitService) DeleteRef(ctx context.Context, owner string, repo string, ref string) (*Response, error) {
+	ref = strings.TrimPrefix(ref, "refs/")
+	u := fmt.Sprintf("repos/%v/%v/git/refs/%v", owner, repo, ref)
+	req, err := s.client.NewRequest("DELETE", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.client.Do(ctx, req, nil)
+}