12973309394

Committed 26 Jan 2025 09:17AM UTC coverage: 87.598% (-0.1%) from 87.742%

Build # 12973309394

Build Type

Pull #143

github

Committed by

EyalDelarea

Commit Message

Merge branch 'master' of https://github.com/jfrog/froggit-go into new_gh_pr_functions

Pull Request Pull Request #143: Add Pull Request new APIs

Run Details

66 of 83 new or added lines in 5 files covered. (79.52%)

27 existing lines in 4 files now uncovered.

4139 of 4725 relevant lines covered (87.6%)

6.77 hits per line

Source File
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89.88

/vcsclient/github.go

package vcsclient

import (
        "context"
        "encoding/json"
        "errors"
        "fmt"
        "github.com/google/go-github/v56/github"
        "github.com/grokify/mogo/encoding/base64"
        "github.com/jfrog/froggit-go/vcsutils"
        "github.com/jfrog/gofrog/datastructures"
        "github.com/mitchellh/mapstructure"
        "golang.org/x/exp/slices"
        "golang.org/x/oauth2"
        "io"
        "net/http"
        "net/url"
        "path/filepath"
        "sort"
        "strconv"
        "strings"
        "time"
)

const (
        maxRetries               = 5
        retriesIntervalMilliSecs = 60000
        // https://github.com/orgs/community/discussions/27190
        githubPrContentSizeLimit = 65536
)

var rateLimitRetryStatuses = []int{http.StatusForbidden, http.StatusTooManyRequests}

type GitHubRateLimitExecutionHandler func() (*github.Response, error)

type GitHubRateLimitRetryExecutor struct {
        vcsutils.RetryExecutor
        GitHubRateLimitExecutionHandler
}

func (ghe *GitHubRateLimitRetryExecutor) Execute() error {
        ghe.ExecutionHandler = func() (bool, error) {
                ghResponse, err := ghe.GitHubRateLimitExecutionHandler()
                return shouldRetryIfRateLimitExceeded(ghResponse, err), err
        }
        return ghe.RetryExecutor.Execute()
}

// GitHubClient API version 3
type GitHubClient struct {
        vcsInfo                VcsInfo
        rateLimitRetryExecutor GitHubRateLimitRetryExecutor
        logger                 vcsutils.Log
        ghClient               *github.Client
}

// NewGitHubClient create a new GitHubClient
func NewGitHubClient(vcsInfo VcsInfo, logger vcsutils.Log) (*GitHubClient, error) {
        ghClient, err := buildGithubClient(vcsInfo, logger)
        if err != nil {
                return nil, err
        }
        return &GitHubClient{
                        vcsInfo:  vcsInfo,
                        logger:   logger,
                        ghClient: ghClient,
                        rateLimitRetryExecutor: GitHubRateLimitRetryExecutor{RetryExecutor: vcsutils.RetryExecutor{
                                Logger:                   logger,
                                MaxRetries:               maxRetries,
                                RetriesIntervalMilliSecs: retriesIntervalMilliSecs},
                        }},
                nil
}

func (client *GitHubClient) runWithRateLimitRetries(handler func() (*github.Response, error)) error {
        client.rateLimitRetryExecutor.GitHubRateLimitExecutionHandler = handler
        return client.rateLimitRetryExecutor.Execute()
}

// TestConnection on GitHub
func (client *GitHubClient) TestConnection(ctx context.Context) error {
        _, _, err := client.ghClient.Meta.Zen(ctx)
        return err
}

func buildGithubClient(vcsInfo VcsInfo, logger vcsutils.Log) (*github.Client, error) {
        httpClient := &http.Client{}
        if vcsInfo.Token != "" {
                httpClient = oauth2.NewClient(context.Background(), oauth2.StaticTokenSource(&oauth2.Token{AccessToken: vcsInfo.Token}))
        }
        ghClient := github.NewClient(httpClient)
        if vcsInfo.APIEndpoint != "" {
                baseURL, err := url.Parse(strings.TrimSuffix(vcsInfo.APIEndpoint, "/") + "/")
                if err != nil {
                        return nil, err
                }
                logger.Info("Using API endpoint:", baseURL)
                ghClient.BaseURL = baseURL
        }
        return ghClient, nil
}

// AddSshKeyToRepository on GitHub
func (client *GitHubClient) AddSshKeyToRepository(ctx context.Context, owner, repository, keyName, publicKey string, permission Permission) error {
        err := validateParametersNotBlank(map[string]string{
                "owner":      owner,
                "repository": repository,
                "key name":   keyName,
                "public key": publicKey,
        })
        if err != nil {
                return err
        }

        readOnly := permission != ReadWrite
        key := github.Key{
                Key:      &publicKey,
                Title:    &keyName,
                ReadOnly: &readOnly,
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                _, ghResponse, err := client.ghClient.Repositories.CreateKey(ctx, owner, repository, &key)
                return ghResponse, err
        })
}

// ListRepositories on GitHub
func (client *GitHubClient) ListRepositories(ctx context.Context) (results map[string][]string, err error) {
        results = make(map[string][]string)
        for nextPage := 1; ; nextPage++ {
                var repositoriesInPage []*github.Repository
                var ghResponse *github.Response
                err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                        repositoriesInPage, ghResponse, err = client.executeListRepositoriesInPage(ctx, nextPage)
                        return ghResponse, err
                })
                if err != nil {
                        return
                }

                for _, repo := range repositoriesInPage {
                        results[*repo.Owner.Login] = append(results[*repo.Owner.Login], *repo.Name)
                }
                if nextPage+1 > ghResponse.LastPage {
                        break
                }
        }
        return
}

func (client *GitHubClient) executeListRepositoriesInPage(ctx context.Context, page int) ([]*github.Repository, *github.Response, error) {
        options := &github.RepositoryListOptions{ListOptions: github.ListOptions{Page: page}}
        return client.ghClient.Repositories.List(ctx, "", options)
}

// ListBranches on GitHub
func (client *GitHubClient) ListBranches(ctx context.Context, owner, repository string) (branchList []string, err error) {
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                branchList, ghResponse, err = client.executeListBranch(ctx, owner, repository)
                return ghResponse, err
        })
        return
}

func (client *GitHubClient) executeListBranch(ctx context.Context, owner, repository string) ([]string, *github.Response, error) {
        branches, ghResponse, err := client.ghClient.Repositories.ListBranches(ctx, owner, repository, nil)
        if err != nil {
                return []string{}, ghResponse, err
        }

        branchList := make([]string, 0, len(branches))
        for _, branch := range branches {
                branchList = append(branchList, *branch.Name)
        }
        return branchList, ghResponse, nil
}

// CreateWebhook on GitHub
func (client *GitHubClient) CreateWebhook(ctx context.Context, owner, repository, _, payloadURL string,
        webhookEvents ...vcsutils.WebhookEvent) (string, string, error) {
        token := vcsutils.CreateToken()
        hook := createGitHubHook(token, payloadURL, webhookEvents...)
        var ghResponseHook *github.Hook
        var err error
        if err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                ghResponseHook, ghResponse, err = client.ghClient.Repositories.CreateHook(ctx, owner, repository, hook)
                return ghResponse, err
        }); err != nil {
                return "", "", err
        }

        return strconv.FormatInt(*ghResponseHook.ID, 10), token, nil
}

// UpdateWebhook on GitHub
func (client *GitHubClient) UpdateWebhook(ctx context.Context, owner, repository, _, payloadURL, token,
        webhookID string, webhookEvents ...vcsutils.WebhookEvent) error {
        webhookIDInt64, err := strconv.ParseInt(webhookID, 10, 64)
        if err != nil {
                return err
        }

        hook := createGitHubHook(token, payloadURL, webhookEvents...)
        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                _, ghResponse, err = client.ghClient.Repositories.EditHook(ctx, owner, repository, webhookIDInt64, hook)
                return ghResponse, err
        })
}

// DeleteWebhook on GitHub
func (client *GitHubClient) DeleteWebhook(ctx context.Context, owner, repository, webhookID string) error {
        webhookIDInt64, err := strconv.ParseInt(webhookID, 10, 64)
        if err != nil {
                return err
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                return client.ghClient.Repositories.DeleteHook(ctx, owner, repository, webhookIDInt64)
        })
}

// SetCommitStatus on GitHub
func (client *GitHubClient) SetCommitStatus(ctx context.Context, commitStatus CommitStatus, owner, repository, ref,
        title, description, detailsURL string) error {
        state := getGitHubCommitState(commitStatus)
        status := &github.RepoStatus{
                Context:     &title,
                TargetURL:   &detailsURL,
                State:       &state,
                Description: &description,
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                _, ghResponse, err := client.ghClient.Repositories.CreateStatus(ctx, owner, repository, ref, status)
                return ghResponse, err
        })
}

// GetCommitStatuses on GitHub
func (client *GitHubClient) GetCommitStatuses(ctx context.Context, owner, repository, ref string) (statusInfoList []CommitStatusInfo, err error) {
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                statusInfoList, ghResponse, err = client.executeGetCommitStatuses(ctx, owner, repository, ref)
                return ghResponse, err
        })
        return
}

func (client *GitHubClient) executeGetCommitStatuses(ctx context.Context, owner, repository, ref string) (statusInfoList []CommitStatusInfo, ghResponse *github.Response, err error) {
        statuses, ghResponse, err := client.ghClient.Repositories.GetCombinedStatus(ctx, owner, repository, ref, nil)
        if err != nil {
                return
        }

        for _, singleStatus := range statuses.Statuses {
                statusInfoList = append(statusInfoList, CommitStatusInfo{
                        State:         commitStatusAsStringToStatus(*singleStatus.State),
                        Description:   singleStatus.GetDescription(),
                        DetailsUrl:    singleStatus.GetTargetURL(),
                        Creator:       singleStatus.GetCreator().GetName(),
                        LastUpdatedAt: singleStatus.GetUpdatedAt().Time,
                        CreatedAt:     singleStatus.GetCreatedAt().Time,
                })
        }
        return
}

// DownloadRepository on GitHub
func (client *GitHubClient) DownloadRepository(ctx context.Context, owner, repository, branch, localPath string) (err error) {
        // Get the archive download link from GitHub
        var baseURL *url.URL
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                baseURL, ghResponse, err = client.executeGetArchiveLink(ctx, owner, repository, branch)
                return ghResponse, err
        })
        if err != nil {
                return
        }

        // Download the archive
        httpResponse, err := executeDownloadArchiveFromLink(baseURL.String())
        if err != nil {
                return
        }
        defer func() { err = errors.Join(err, httpResponse.Body.Close()) }()
        client.logger.Info(repository, vcsutils.SuccessfulRepoDownload)

        // Untar the archive
        if err = vcsutils.Untar(localPath, httpResponse.Body, true); err != nil {
                return
        }
        client.logger.Info(vcsutils.SuccessfulRepoExtraction)

        repositoryInfo, err := client.GetRepositoryInfo(ctx, owner, repository)
        if err != nil {
                return
        }
        // Create a .git folder in the archive with the remote repository HTTP clone url
        err = vcsutils.CreateDotGitFolderWithRemote(localPath, vcsutils.RemoteName, repositoryInfo.CloneInfo.HTTP)
        return
}

func (client *GitHubClient) executeGetArchiveLink(ctx context.Context, owner, repository, branch string) (baseURL *url.URL, ghResponse *github.Response, err error) {
        client.logger.Debug("Getting GitHub archive link to download")
        return client.ghClient.Repositories.GetArchiveLink(ctx, owner, repository, github.Tarball,
                &github.RepositoryContentGetOptions{Ref: branch}, 5)
}

func executeDownloadArchiveFromLink(baseURL string) (*http.Response, error) {
        httpClient := &http.Client{}
        req, err := http.NewRequest(http.MethodGet, baseURL, nil)
        if err != nil {
                return nil, err
        }
        httpResponse, err := httpClient.Do(req)
        if err != nil {
                return httpResponse, err
        }
        return httpResponse, vcsutils.CheckResponseStatusWithBody(httpResponse, http.StatusOK)
}

func (client *GitHubClient) GetPullRequestCommentSizeLimit() int {
        return githubPrContentSizeLimit
}

func (client *GitHubClient) GetPullRequestDetailsSizeLimit() int {
        return githubPrContentSizeLimit
}

// CreatePullRequest on GitHub
func (client *GitHubClient) CreatePullRequest(ctx context.Context, owner, repository, sourceBranch, targetBranch, title, description string) error {
        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                return client.executeCreatePullRequest(ctx, owner, repository, sourceBranch, targetBranch, title, description)
        })
}

func (client *GitHubClient) executeCreatePullRequest(ctx context.Context, owner, repository, sourceBranch, targetBranch, title, description string) (*github.Response, error) {
        head := owner + ":" + sourceBranch
        client.logger.Debug(vcsutils.CreatingPullRequest, title)

        _, ghResponse, err := client.ghClient.PullRequests.Create(ctx, owner, repository, &github.NewPullRequest{
                Title: &title,
                Body:  &description,
                Head:  &head,
                Base:  &targetBranch,
        })
        return ghResponse, err
}

// UpdatePullRequest on GitHub
func (client *GitHubClient) UpdatePullRequest(ctx context.Context, owner, repository, title, body, targetBranchName string, id int, state vcsutils.PullRequestState) error {
        client.logger.Debug(vcsutils.UpdatingPullRequest, id)
        var baseRef *github.PullRequestBranch
        if targetBranchName != "" {
                baseRef = &github.PullRequestBranch{Ref: &targetBranchName}
        }
        pullRequest := &github.PullRequest{
                Body:  &body,
                Title: &title,
                State: vcsutils.MapPullRequestState(&state),
                Base:  baseRef,
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                _, ghResponse, err := client.ghClient.PullRequests.Edit(ctx, owner, repository, id, pullRequest)
                return ghResponse, err
        })
}

// ListOpenPullRequestsWithBody on GitHub
func (client *GitHubClient) ListOpenPullRequestsWithBody(ctx context.Context, owner, repository string) ([]PullRequestInfo, error) {
        return client.getOpenPullRequests(ctx, owner, repository, true)
}

// ListOpenPullRequests on GitHub
func (client *GitHubClient) ListOpenPullRequests(ctx context.Context, owner, repository string) ([]PullRequestInfo, error) {
        return client.getOpenPullRequests(ctx, owner, repository, false)
}

func (client *GitHubClient) getOpenPullRequests(ctx context.Context, owner, repository string, withBody bool) ([]PullRequestInfo, error) {
        var pullRequests []*github.PullRequest
        client.logger.Debug(vcsutils.FetchingOpenPullRequests, repository)
        err := client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                var err error
                pullRequests, ghResponse, err = client.ghClient.PullRequests.List(ctx, owner, repository, &github.PullRequestListOptions{State: "open"})
                return ghResponse, err
        })
        if err != nil {
                return []PullRequestInfo{}, err
        }

        return mapGitHubPullRequestToPullRequestInfoList(pullRequests, withBody)
}

func (client *GitHubClient) GetPullRequestByID(ctx context.Context, owner, repository string, pullRequestId int) (PullRequestInfo, error) {
        var pullRequest *github.PullRequest
        var ghResponse *github.Response
        var err error
        client.logger.Debug(vcsutils.FetchingPullRequestById, repository)
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                pullRequest, ghResponse, err = client.ghClient.PullRequests.Get(ctx, owner, repository, pullRequestId)
                return ghResponse, err
        })
        if err != nil {
                return PullRequestInfo{}, err
        }

        if err = vcsutils.CheckResponseStatusWithBody(ghResponse.Response, http.StatusOK); err != nil {
                return PullRequestInfo{}, err
        }

        return mapGitHubPullRequestToPullRequestInfo(pullRequest, false)
}

func mapGitHubPullRequestToPullRequestInfo(ghPullRequest *github.PullRequest, withBody bool) (PullRequestInfo, error) {
        var sourceBranch, targetBranch string
        var err1, err2 error
        if ghPullRequest != nil && ghPullRequest.Head != nil && ghPullRequest.Base != nil {
                sourceBranch, err1 = extractBranchFromLabel(vcsutils.DefaultIfNotNil(ghPullRequest.Head.Label))
                targetBranch, err2 = extractBranchFromLabel(vcsutils.DefaultIfNotNil(ghPullRequest.Base.Label))
                err := errors.Join(err1, err2)
                if err != nil {
                        return PullRequestInfo{}, err
                }
        }

        var sourceRepoName, sourceRepoOwner string
        if ghPullRequest.Head.Repo == nil {
                return PullRequestInfo{}, errors.New("the source repository information is missing when fetching the pull request details")
        }
        if ghPullRequest.Head.Repo.Owner == nil {
                return PullRequestInfo{}, errors.New("the source repository owner name is missing when fetching the pull request details")
        }
        sourceRepoName = vcsutils.DefaultIfNotNil(ghPullRequest.Head.Repo.Name)
        sourceRepoOwner = vcsutils.DefaultIfNotNil(ghPullRequest.Head.Repo.Owner.Login)

        var targetRepoName, targetRepoOwner string
        if ghPullRequest.Base.Repo == nil {
                return PullRequestInfo{}, errors.New("the target repository information is missing when fetching the pull request details")
        }
        if ghPullRequest.Base.Repo.Owner == nil {
                return PullRequestInfo{}, errors.New("the target repository owner name is missing when fetching the pull request details")
        }
        targetRepoName = vcsutils.DefaultIfNotNil(ghPullRequest.Base.Repo.Name)
        targetRepoOwner = vcsutils.DefaultIfNotNil(ghPullRequest.Base.Repo.Owner.Login)

        var body string
        if withBody {
                body = vcsutils.DefaultIfNotNil(ghPullRequest.Body)
        }

        return PullRequestInfo{
                ID:   int64(vcsutils.DefaultIfNotNil(ghPullRequest.Number)),
                URL:  vcsutils.DefaultIfNotNil(ghPullRequest.HTMLURL),
                Body: body,
                Source: BranchInfo{
                        Name:       sourceBranch,
                        Repository: sourceRepoName,
                        Owner:      sourceRepoOwner,
                },
                Target: BranchInfo{
                        Name:       targetBranch,
                        Repository: targetRepoName,
                        Owner:      targetRepoOwner,
                },
        }, nil
}

// Extracts branch name from the following expected label format repo:branch
func extractBranchFromLabel(label string) (string, error) {
        split := strings.Split(label, ":")
        if len(split) <= 1 {
                return "", fmt.Errorf("bad label format %s", label)
        }
        return split[1], nil
}

// AddPullRequestComment on GitHub
func (client *GitHubClient) AddPullRequestComment(ctx context.Context, owner, repository, content string, pullRequestID int) error {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "content": content})
        if err != nil {
                return err
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                // We use the Issues API to add a regular comment. The PullRequests API adds a code review comment.
                _, ghResponse, err = client.ghClient.Issues.CreateComment(ctx, owner, repository, pullRequestID, &github.IssueComment{Body: &content})
                return ghResponse, err
        })
}

// AddPullRequestReviewComments on GitHub
func (client *GitHubClient) AddPullRequestReviewComments(ctx context.Context, owner, repository string, pullRequestID int, comments ...PullRequestComment) error {
        prID := strconv.Itoa(pullRequestID)
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "pullRequestID": prID})
        if err != nil {
                return err
        }
        if len(comments) == 0 {
                return errors.New(vcsutils.ErrNoCommentsProvided)
        }

        var commits []*github.RepositoryCommit
        var ghResponse *github.Response
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                commits, ghResponse, err = client.ghClient.PullRequests.ListCommits(ctx, owner, repository, pullRequestID, nil)
                return ghResponse, err
        })
        if err != nil {
                return err
        }
        if len(commits) == 0 {
                return errors.New("could not fetch the commits list for pull request " + prID)
        }

        latestCommitSHA := commits[len(commits)-1].GetSHA()

        for _, comment := range comments {
                err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                        ghResponse, err = client.executeCreatePullRequestReviewComment(ctx, owner, repository, latestCommitSHA, pullRequestID, comment)
                        return ghResponse, err
                })
                if err != nil {
                        return err
                }
        }
        return nil
}

func (client *GitHubClient) executeCreatePullRequestReviewComment(ctx context.Context, owner, repository, latestCommitSHA string, pullRequestID int, comment PullRequestComment) (*github.Response, error) {
        filePath := filepath.Clean(comment.NewFilePath)
        startLine := &comment.NewStartLine
        // GitHub API won't accept 'start_line' if it equals the end line
        if *startLine == comment.NewEndLine {
                startLine = nil
        }
        _, ghResponse, err := client.ghClient.PullRequests.CreateComment(ctx, owner, repository, pullRequestID, &github.PullRequestComment{
                CommitID:  &latestCommitSHA,
                Body:      &comment.Content,
                StartLine: startLine,
                Line:      &comment.NewEndLine,
                Path:      &filePath,
        })
        if err != nil {
                err = fmt.Errorf("could not create a code review comment for <%s/%s> in pull request %d. error received: %w",
                        owner, repository, pullRequestID, err)
        }
        return ghResponse, err
}

// ListPullRequestReviewComments on GitHub
func (client *GitHubClient) ListPullRequestReviewComments(ctx context.Context, owner, repository string, pullRequestID int) ([]CommentInfo, error) {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository})
        if err != nil {
                return nil, err
        }

        commentsInfoList := []CommentInfo{}
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                commentsInfoList, ghResponse, err = client.executeListPullRequestReviewComments(ctx, owner, repository, pullRequestID)
                return ghResponse, err
        })
        return commentsInfoList, err
}

func (client *GitHubClient) ListPullRequestCommits(ctx context.Context, owner, repository string, pullRequestID int) (commitsInfo []CommitInfo, err error) {
        if err = validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "pullRequestID": strconv.Itoa(pullRequestID)}); err != nil {
                return
        }
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                commits, ghResponse, err := client.ghClient.PullRequests.ListCommits(ctx, owner, repository, pullRequestID, nil)
                for _, commit := range commits {
                        commitsInfo = append(commitsInfo, mapGitHubCommitToCommitInfo(commit))
                }
                return ghResponse, err
        })
        return commitsInfo, err
}

func (client *GitHubClient) executeListPullRequestReviewComments(ctx context.Context, owner, repository string, pullRequestID int) ([]CommentInfo, *github.Response, error) {
        commentsList, ghResponse, err := client.ghClient.PullRequests.ListComments(ctx, owner, repository, pullRequestID, nil)
        if err != nil {
                return []CommentInfo{}, ghResponse, err
        }
        commentsInfoList := []CommentInfo{}
        for _, comment := range commentsList {
                commentsInfoList = append(commentsInfoList, CommentInfo{
                        ID:      comment.GetID(),
                        Content: comment.GetBody(),
                        Created: comment.GetCreatedAt().Time,
                })
        }
        return commentsInfoList, ghResponse, nil
}

// ListPullRequestComments on GitHub
func (client *GitHubClient) ListPullRequestComments(ctx context.Context, owner, repository string, pullRequestID int) ([]CommentInfo, error) {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository})
        if err != nil {
                return []CommentInfo{}, err
        }

        var commentsList []*github.IssueComment
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                commentsList, ghResponse, err = client.ghClient.Issues.ListComments(ctx, owner, repository, pullRequestID, &github.IssueListCommentsOptions{})
                return ghResponse, err
        })

        if err != nil {
                return []CommentInfo{}, err
        }

        return mapGitHubIssuesCommentToCommentInfoList(commentsList)
}

// DeletePullRequestReviewComments on GitHub
func (client *GitHubClient) DeletePullRequestReviewComments(ctx context.Context, owner, repository string, _ int, comments ...CommentInfo) error {
        for _, comment := range comments {
                commentID := comment.ID
                err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "commentID": strconv.FormatInt(commentID, 10)})
                if err != nil {
                        return err
                }

                err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                        return client.executeDeletePullRequestReviewComment(ctx, owner, repository, commentID)
                })
                if err != nil {
                        return err
                }

        }
        return nil
}

func (client *GitHubClient) executeDeletePullRequestReviewComment(ctx context.Context, owner, repository string, commentID int64) (*github.Response, error) {
        ghResponse, err := client.ghClient.PullRequests.DeleteComment(ctx, owner, repository, commentID)
        if err != nil {
                err = fmt.Errorf("could not delete pull request review comment: %w", err)
        }
        return ghResponse, err
}

// DeletePullRequestComment on GitHub
func (client *GitHubClient) DeletePullRequestComment(ctx context.Context, owner, repository string, _, commentID int) error {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository})
        if err != nil {
                return err
        }
        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                return client.executeDeletePullRequestComment(ctx, owner, repository, commentID)
        })
}

func (client *GitHubClient) executeDeletePullRequestComment(ctx context.Context, owner, repository string, commentID int) (*github.Response, error) {
        ghResponse, err := client.ghClient.Issues.DeleteComment(ctx, owner, repository, int64(commentID))
        if err != nil {
                return ghResponse, err
        }

        var statusCode int
        if ghResponse.Response != nil {
                statusCode = ghResponse.Response.StatusCode
        }
        if statusCode != http.StatusNoContent && statusCode != http.StatusOK {
                return ghResponse, fmt.Errorf("expected %d status code while received %d status code", http.StatusNoContent, ghResponse.Response.StatusCode)
        }

        return ghResponse, nil
}

// GetLatestCommit on GitHub
func (client *GitHubClient) GetLatestCommit(ctx context.Context, owner, repository, branch string) (CommitInfo, error) {
        commits, err := client.GetCommits(ctx, owner, repository, branch)
        if err != nil {
                return CommitInfo{}, err
        }
        latestCommit := CommitInfo{}
        if len(commits) > 0 {
                latestCommit = commits[0]
        }
        return latestCommit, nil
}

// GetCommits on GitHub
func (client *GitHubClient) GetCommits(ctx context.Context, owner, repository, branch string) ([]CommitInfo, error) {
        err := validateParametersNotBlank(map[string]string{
                "owner":      owner,
                "repository": repository,
                "branch":     branch,
        })
        if err != nil {
                return nil, err
        }

        var commitsInfo []CommitInfo
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                listOptions := &github.CommitsListOptions{
                        SHA: branch,
                        ListOptions: github.ListOptions{
                                Page:    1,
                                PerPage: vcsutils.NumberOfCommitsToFetch,
                        },
                }
                commitsInfo, ghResponse, err = client.executeGetCommits(ctx, owner, repository, listOptions)
                return ghResponse, err
        })
        return commitsInfo, err
}

// GetCommitsWithQueryOptions on GitHub
func (client *GitHubClient) GetCommitsWithQueryOptions(ctx context.Context, owner, repository string, listOptions GitCommitsQueryOptions) ([]CommitInfo, error) {
        err := validateParametersNotBlank(map[string]string{
                "owner":      owner,
                "repository": repository,
        })
        if err != nil {
                return nil, err
        }
        var commitsInfo []CommitInfo
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                commitsInfo, ghResponse, err = client.executeGetCommits(ctx, owner, repository, convertToGitHubCommitsListOptions(listOptions))
                return ghResponse, err
        })
        return commitsInfo, err
}

func convertToGitHubCommitsListOptions(listOptions GitCommitsQueryOptions) *github.CommitsListOptions {
        return &github.CommitsListOptions{
                Since: listOptions.Since,
                Until: time.Now(),
                ListOptions: github.ListOptions{
                        Page:    listOptions.Page,
                        PerPage: listOptions.PerPage,
                },
        }
}

func (client *GitHubClient) executeGetCommits(ctx context.Context, owner, repository string, listOptions *github.CommitsListOptions) ([]CommitInfo, *github.Response, error) {
        commits, ghResponse, err := client.ghClient.Repositories.ListCommits(ctx, owner, repository, listOptions)
        if err != nil {
                return nil, ghResponse, err
        }

        var commitsInfo []CommitInfo
        for _, commit := range commits {
                commitInfo := mapGitHubCommitToCommitInfo(commit)
                commitsInfo = append(commitsInfo, commitInfo)
        }
        return commitsInfo, ghResponse, nil
}

// GetRepositoryInfo on GitHub
func (client *GitHubClient) GetRepositoryInfo(ctx context.Context, owner, repository string) (RepositoryInfo, error) {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository})
        if err != nil {
                return RepositoryInfo{}, err
        }

        var repo *github.Repository
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                repo, ghResponse, err = client.ghClient.Repositories.Get(ctx, owner, repository)
                return ghResponse, err
        })
        if err != nil {
                return RepositoryInfo{}, err
        }

        return RepositoryInfo{RepositoryVisibility: getGitHubRepositoryVisibility(repo), CloneInfo: CloneInfo{HTTP: repo.GetCloneURL(), SSH: repo.GetSSHURL()}}, nil
}

// GetCommitBySha on GitHub
func (client *GitHubClient) GetCommitBySha(ctx context.Context, owner, repository, sha string) (CommitInfo, error) {
        err := validateParametersNotBlank(map[string]string{
                "owner":      owner,
                "repository": repository,
                "sha":        sha,
        })
        if err != nil {
                return CommitInfo{}, err
        }

        var commit *github.RepositoryCommit
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                commit, ghResponse, err = client.ghClient.Repositories.GetCommit(ctx, owner, repository, sha, nil)
                return ghResponse, err
        })
        if err != nil {
                return CommitInfo{}, err
        }

        return mapGitHubCommitToCommitInfo(commit), nil
}

// CreateLabel on GitHub
func (client *GitHubClient) CreateLabel(ctx context.Context, owner, repository string, labelInfo LabelInfo) error {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "LabelInfo.name": labelInfo.Name})
        if err != nil {
                return err
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                _, ghResponse, err = client.ghClient.Issues.CreateLabel(ctx, owner, repository, &github.Label{
                        Name:        &labelInfo.Name,
                        Description: &labelInfo.Description,
                        Color:       &labelInfo.Color,
                })
                return ghResponse, err
        })
}

// GetLabel on GitHub
func (client *GitHubClient) GetLabel(ctx context.Context, owner, repository, name string) (*LabelInfo, error) {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "name": name})
        if err != nil {
                return nil, err
        }

        var labelInfo *LabelInfo
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                labelInfo, ghResponse, err = client.executeGetLabel(ctx, owner, repository, name)
                return ghResponse, err
        })
        return labelInfo, err
}

func (client *GitHubClient) executeGetLabel(ctx context.Context, owner, repository, name string) (*LabelInfo, *github.Response, error) {
        label, ghResponse, err := client.ghClient.Issues.GetLabel(ctx, owner, repository, name)
        if err != nil {
                if ghResponse != nil && ghResponse.Response != nil && ghResponse.Response.StatusCode == http.StatusNotFound {
                        return nil, ghResponse, nil
                }
                return nil, ghResponse, err
        }

        labelInfo := &LabelInfo{
                Name:        *label.Name,
                Description: *label.Description,
                Color:       *label.Color,
        }
        return labelInfo, ghResponse, nil
}

// ListPullRequestLabels on GitHub
func (client *GitHubClient) ListPullRequestLabels(ctx context.Context, owner, repository string, pullRequestID int) ([]string, error) {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository})
        if err != nil {
                return nil, err
        }

        results := []string{}
        for nextPage := 0; ; nextPage++ {
                options := &github.ListOptions{Page: nextPage}
                var labels []*github.Label
                var ghResponse *github.Response
                err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                        labels, ghResponse, err = client.ghClient.Issues.ListLabelsByIssue(ctx, owner, repository, pullRequestID, options)
                        return ghResponse, err
                })
                if err != nil {
                        return nil, err
                }
                for _, label := range labels {
                        results = append(results, *label.Name)
                }
                if nextPage+1 >= ghResponse.LastPage {
                        break
                }
        }
        return results, nil
}

// UnlabelPullRequest on GitHub
func (client *GitHubClient) UnlabelPullRequest(ctx context.Context, owner, repository, name string, pullRequestID int) error {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository})
        if err != nil {
                return err
        }

        return client.runWithRateLimitRetries(func() (*github.Response, error) {
                return client.ghClient.Issues.RemoveLabelForIssue(ctx, owner, repository, pullRequestID, name)
        })
}

// UploadCodeScanning to GitHub Security tab
func (client *GitHubClient) UploadCodeScanning(ctx context.Context, owner, repository, branch, sarifContent string) (id string, err error) {
        commit, err := client.GetLatestCommit(ctx, owner, repository, branch)
        if err != nil {
                return
        }

        commitSHA := commit.Hash
        branch = vcsutils.AddBranchPrefix(branch)
        client.logger.Debug(vcsutils.UploadingCodeScanning, repository, "/", branch)

        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                id, ghResponse, err = client.executeUploadCodeScanning(ctx, owner, repository, branch, commitSHA, sarifContent)
                return ghResponse, err
        })
        return
}

func (client *GitHubClient) executeUploadCodeScanning(ctx context.Context, owner, repository, branch, commitSHA, sarifContent string) (id string, ghResponse *github.Response, err error) {
        encodedSarif, err := encodeScanningResult(sarifContent)
        if err != nil {
                return
        }

        sarifID, ghResponse, err := client.ghClient.CodeScanning.UploadSarif(ctx, owner, repository, &github.SarifAnalysis{
                CommitSHA: &commitSHA,
                Ref:       &branch,
                Sarif:     &encodedSarif,
        })

        // According to go-github API - successful ghResponse will return 202 status code
        // The body of the ghResponse will appear in the error, and the Sarif struct will be empty.
        if err != nil && ghResponse.Response.StatusCode != http.StatusAccepted {
                return
        }

        id, err = handleGitHubUploadSarifID(sarifID, err)
        return
}

func handleGitHubUploadSarifID(sarifID *github.SarifID, uploadSarifErr error) (id string, err error) {
        if sarifID != nil && *sarifID.ID != "" {
                id = *sarifID.ID
                return
        }
        var result map[string]string
        var ghAcceptedError *github.AcceptedError
        if errors.As(uploadSarifErr, &ghAcceptedError) {
                if err = json.Unmarshal(ghAcceptedError.Raw, &result); err != nil {
                        return
                }
                id = result["id"]
        }
        return
}

// DownloadFileFromRepo on GitHub
func (client *GitHubClient) DownloadFileFromRepo(ctx context.Context, owner, repository, branch, path string) (content []byte, statusCode int, err error) {
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                content, statusCode, ghResponse, err = client.executeDownloadFileFromRepo(ctx, owner, repository, branch, path)
                return ghResponse, err
        })
        return
}

func (client *GitHubClient) executeDownloadFileFromRepo(ctx context.Context, owner, repository, branch, path string) (content []byte, statusCode int, ghResponse *github.Response, err error) {
        body, ghResponse, err := client.ghClient.Repositories.DownloadContents(ctx, owner, repository, path, &github.RepositoryContentGetOptions{Ref: branch})
        defer func() {
                if body != nil {
                        err = errors.Join(err, body.Close())
                }
        }()

        if ghResponse == nil || ghResponse.Response == nil {
                return
        }

        statusCode = ghResponse.StatusCode
        if err != nil && statusCode != http.StatusOK {
                err = fmt.Errorf("expected %d status code while received %d status code with error:\n%s", http.StatusOK, ghResponse.StatusCode, err)
                return
        }

        if body != nil {
                content, err = io.ReadAll(body)
        }
        return
}

// GetRepositoryEnvironmentInfo on GitHub
func (client *GitHubClient) GetRepositoryEnvironmentInfo(ctx context.Context, owner, repository, name string) (RepositoryEnvironmentInfo, error) {
        err := validateParametersNotBlank(map[string]string{"owner": owner, "repository": repository, "name": name})
        if err != nil {
                return RepositoryEnvironmentInfo{}, err
        }

        var repositoryEnvInfo *RepositoryEnvironmentInfo
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                repositoryEnvInfo, ghResponse, err = client.executeGetRepositoryEnvironmentInfo(ctx, owner, repository, name)
                return ghResponse, err
        })
        return *repositoryEnvInfo, err
}

func (client *GitHubClient) executeGetRepositoryEnvironmentInfo(ctx context.Context, owner, repository, name string) (*RepositoryEnvironmentInfo, *github.Response, error) {
        environment, ghResponse, err := client.ghClient.Repositories.GetEnvironment(ctx, owner, repository, name)
        if err != nil {
                return &RepositoryEnvironmentInfo{}, ghResponse, err
        }

        if err = vcsutils.CheckResponseStatusWithBody(ghResponse.Response, http.StatusOK); err != nil {
                return &RepositoryEnvironmentInfo{}, ghResponse, err
        }

        reviewers, err := extractGitHubEnvironmentReviewers(environment)
        if err != nil {
                return &RepositoryEnvironmentInfo{}, ghResponse, err
        }

        return &RepositoryEnvironmentInfo{
                        Name:      environment.GetName(),
                        Url:       environment.GetURL(),
                        Reviewers: reviewers,
                },
                ghResponse,
                nil
}

func (client *GitHubClient) GetModifiedFiles(ctx context.Context, owner, repository, refBefore, refAfter string) ([]string, error) {
        err := validateParametersNotBlank(map[string]string{
                "owner":      owner,
                "repository": repository,
                "refBefore":  refBefore,
                "refAfter":   refAfter,
        })
        if err != nil {
                return nil, err
        }

        var fileNamesList []string
        err = client.runWithRateLimitRetries(func() (*github.Response, error) {
                var ghResponse *github.Response
                fileNamesList, ghResponse, err = client.executeGetModifiedFiles(ctx, owner, repository, refBefore, refAfter)
                return ghResponse, err
        })
        return fileNamesList, err
}

func (client *GitHubClient) executeGetModifiedFiles(ctx context.Context, owner, repository, refBefore, refAfter string) ([]string, *github.Response, error) {
        // According to the https://docs.github.com/en/rest/commits/commits?apiVersion=2022-11-28#compare-two-commits
        // the list of changed files is always returned with the first page fully,
        // so we don't need to iterate over other pages to get additional info about the files.
        // And we also do not need info about the change that is why we can limit only to a single entity.
        listOptions := &github.ListOptions{PerPage: 1}

        comparison, ghResponse, err := client.ghClient.Repositories.CompareCommits(ctx, owner, repository, refBefore, refAfter, listOptions)
        if err != nil {
                return nil, ghResponse, err
        }

        if err = vcsutils.CheckResponseStatusWithBody(ghResponse.Response, http.StatusOK); err != nil {
                return nil, ghResponse, err
        }

        fileNamesSet := datastructures.MakeSet[string]()
        for _, file := range comparison.Files {
                fileNamesSet.Add(vcsutils.DefaultIfNotNil(file.Filename))
                fileNamesSet.Add(vcsutils.DefaultIfNotNil(file.PreviousFilename))
        }

        _ = fileNamesSet.Remove("") // Make sure there are no blank filepath.
        fileNamesList := fileNamesSet.ToSlice()
        sort.Strings(fileNamesList)

        return fileNamesList, ghResponse, nil
}

// Extract code reviewers from environment
func extractGitHubEnvironmentReviewers(environment *github.Environment) ([]string, error) {
        var reviewers []string
        protectionRules := environment.ProtectionRules
        if protectionRules == nil {
                return reviewers, nil
        }
        reviewerStruct := repositoryEnvironmentReviewer{}
        for _, rule := range protectionRules {
                for _, reviewer := range rule.Reviewers {
                        if err := mapstructure.Decode(reviewer.Reviewer, &reviewerStruct); err != nil {
                                return []string{}, err
                        }
                        reviewers = append(reviewers, reviewerStruct.Login)
                }
        }
        return reviewers, nil
}

func createGitHubHook(token, payloadURL string, webhookEvents ...vcsutils.WebhookEvent) *github.Hook {
        return &github.Hook{
                Events: getGitHubWebhookEvents(webhookEvents...),
                Config: map[string]interface{}{
                        "url":          payloadURL,
                        "content_type": "json",
                        "secret":       token,
                },
        }
}

// Get varargs of webhook events and return a slice of GitHub webhook events
func getGitHubWebhookEvents(webhookEvents ...vcsutils.WebhookEvent) []string {
        events := datastructures.MakeSet[string]()
        for _, event := range webhookEvents {
                switch event {
                case vcsutils.PrOpened, vcsutils.PrEdited, vcsutils.PrMerged, vcsutils.PrRejected:
                        events.Add("pull_request")
                case vcsutils.Push, vcsutils.TagPushed, vcsutils.TagRemoved:
                        events.Add("push")
                }
        }
        return events.ToSlice()
}

func getGitHubRepositoryVisibility(repo *github.Repository) RepositoryVisibility {
        switch *repo.Visibility {
        case "public":
                return Public
        case "internal":
                return Internal
        default:
                return Private
        }
}

func getGitHubCommitState(commitState CommitStatus) string {
        switch commitState {
        case Pass:
                return "success"
        case Fail:
                return "failure"
        case Error:
                return "error"
        case InProgress:
                return "pending"
        }
        return ""
}

func mapGitHubCommitToCommitInfo(commit *github.RepositoryCommit) CommitInfo {
        parents := make([]string, len(commit.Parents))
        for i, c := range commit.Parents {
                parents[i] = c.GetSHA()
        }
        details := commit.GetCommit()
        return CommitInfo{
                Hash:          commit.GetSHA(),
                AuthorName:    details.GetAuthor().GetName(),
                CommitterName: details.GetCommitter().GetName(),
                Url:           commit.GetURL(),
                Timestamp:     details.GetCommitter().GetDate().UTC().Unix(),
                Message:       details.GetMessage(),
                ParentHashes:  parents,
                AuthorEmail:   details.GetAuthor().GetEmail(),
        }
}

func mapGitHubIssuesCommentToCommentInfoList(commentsList []*github.IssueComment) (res []CommentInfo, err error) {
        for _, comment := range commentsList {
                res = append(res, CommentInfo{
                        ID:      comment.GetID(),
                        Content: comment.GetBody(),
                        Created: comment.GetCreatedAt().Time,
                })
        }
        return
}

func mapGitHubPullRequestToPullRequestInfoList(pullRequestList []*github.PullRequest, withBody bool) (res []PullRequestInfo, err error) {
        var mappedPullRequest PullRequestInfo
        for _, pullRequest := range pullRequestList {
                mappedPullRequest, err = mapGitHubPullRequestToPullRequestInfo(pullRequest, withBody)
                if err != nil {
                        return
                }
                res = append(res, mappedPullRequest)
        }
        return
}

func encodeScanningResult(data string) (string, error) {
        compressedScan, err := base64.EncodeGzip([]byte(data), 6)
        if err != nil {
                return "", err
        }

        return compressedScan, err
}

type repositoryEnvironmentReviewer struct {
        Login string `mapstructure:"login"`
}

func shouldRetryIfRateLimitExceeded(ghResponse *github.Response, requestError error) bool {
        if ghResponse == nil || ghResponse.Response == nil {
                return false
        }

        if !slices.Contains(rateLimitRetryStatuses, ghResponse.StatusCode) {
                return false
        }

        // In case of encountering a rate limit abuse, it's advisable to observe a considerate delay before attempting a retry.
        // This prevents immediate retries within the current sequence, allowing a respectful interval before reattempting the request.
        if requestError != nil && isRateLimitAbuseError(requestError) {
                return false
        }

        body, err := io.ReadAll(ghResponse.Body)
        if err != nil {
                return false
        }
        return strings.Contains(string(body), "rate limit")
}

func isRateLimitAbuseError(requestError error) bool {
        var abuseRateLimitError *github.AbuseRateLimitError
        var rateLimitError *github.RateLimitError
        return errors.As(requestError, &abuseRateLimitError) || errors.As(requestError, &rateLimitError)
}

jfrog / froggit-go / 12973309394

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