feat(alerting): Implement GitHub alerting provider

vendor/github.com/google/go-github/v48/github/repos_codeowners.go

@@ -0,0 +1,46 @@
+// Copyright 2022 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"
+)
+
+// CodeownersErrors represents a list of syntax errors detected in the CODEOWNERS file.
+type CodeownersErrors struct {
+	Errors []*CodeownersError `json:"errors"`
+}
+
+// CodeownersError represents a syntax error detected in the CODEOWNERS file.
+type CodeownersError struct {
+	Line       int     `json:"line"`
+	Column     int     `json:"column"`
+	Kind       string  `json:"kind"`
+	Source     string  `json:"source"`
+	Suggestion *string `json:"suggestion,omitempty"`
+	Message    string  `json:"message"`
+	Path       string  `json:"path"`
+}
+
+// GetCodeownersErrors lists any syntax errors that are detected in the CODEOWNERS file.
+//
+// GitHub API docs: https://docs.github.com/en/rest/repos/repos#list-codeowners-errors
+func (s *RepositoriesService) GetCodeownersErrors(ctx context.Context, owner, repo string) (*CodeownersErrors, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/codeowners/errors", owner, repo)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	codeownersErrors := &CodeownersErrors{}
+	resp, err := s.client.Do(ctx, req, codeownersErrors)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return codeownersErrors, resp, nil
+}