Function GetIssueParent

pkg/github/issues.go:906–947

GetIssueParent returns the parent issue of the given issue, or a null parent when the issue is not a sub-issue of any other issue. It reads the GraphQL Issue.parent field, the upward counterpart to the downward get_sub_issues read.

(ctx context.Context, client *githubv4.Client, owner string, repo string, issueNumber int)

// when the issue is not a sub-issue of any other issue. It reads the GraphQL
// Issue.parent field, the upward counterpart to the downward get_sub_issues read.
func GetIssueParent(ctx context.Context, client *githubv4.Client, owner string, repo string, issueNumber int) (*mcp.CallToolResult, error) {
	var query struct {
		Repository struct {
			Issue struct {
				Parent *struct {
					Number     githubv4.Int
					Title      githubv4.String
					State      githubv4.String
					URL        githubv4.String
					Repository struct {
						NameWithOwner githubv4.String
					}
				}
			} `graphql:"issue(number: $issueNumber)"`
		} `graphql:"repository(owner: $owner, name: $repo)"`
	}

	vars := map[string]any{
		"owner":       githubv4.String(owner),
		"repo":        githubv4.String(repo),
		"issueNumber": githubv4.Int(issueNumber), // #nosec G115 - issue numbers are always small positive integers
	}

	if err := client.Query(ctx, &query, vars); err != nil {
		return ghErrors.NewGitHubGraphQLErrorResponse(ctx, "failed to get issue parent", err), nil
	}

	parent := query.Repository.Issue.Parent
	if parent == nil {
		return MarshalledTextResult(map[string]any{"parent": nil}), nil
	}

	return MarshalledTextResult(map[string]any{
		"parent": map[string]any{
			"number":     int(parent.Number),
			"title":      string(parent.Title),
			"state":      string(parent.State),
			"url":        string(parent.URL),
			"repository": string(parent.Repository.NameWithOwner),
		},
	}), nil
}

func GetIssueLabels(ctx context.Context, client *githubv4.Client, owner string, repo string, issueNumber int) (*mcp.CallToolResult, error) {
	// Get current labels on the issue using GraphQL