Function findLinkedCopilotPR

pkg/github/copilot.go:93–152

findLinkedCopilotPR searches for a PR created by the copilot-swe-agent bot that references the given issue. It queries the issue's timeline for CrossReferencedEvent items from PRs authored by copilot-swe-agent. The createdAfter parameter filters to only return PRs created after the specified time.

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

// It queries the issue's timeline for CrossReferencedEvent items from PRs authored by copilot-swe-agent.
// The createdAfter parameter filters to only return PRs created after the specified time.
func findLinkedCopilotPR(ctx context.Context, client *githubv4.Client, owner, repo string, issueNumber int, createdAfter time.Time) (*linkedPullRequest, error) {
	// Query timeline items looking for CrossReferencedEvent from PRs by copilot-swe-agent
	var query struct {
		Repository struct {
			Issue struct {
				TimelineItems struct {
					Nodes []struct {
						TypeName             string `graphql:"__typename"`
						CrossReferencedEvent struct {
							Source struct {
								PullRequest struct {
									Number    int
									URL       string
									Title     string
									State     string
									CreatedAt githubv4.DateTime
									Author    struct {
										Login string
									}
								} `graphql:"... on PullRequest"`
							}
						} `graphql:"... on CrossReferencedEvent"`
					}
				} `graphql:"timelineItems(first: 20, itemTypes: [CROSS_REFERENCED_EVENT])"`
			} `graphql:"issue(number: $number)"`
		} `graphql:"repository(owner: $owner, name: $name)"`
	}

	variables := map[string]any{
		"owner":  githubv4.String(owner),
		"name":   githubv4.String(repo),
		"number": githubv4.Int(issueNumber), //nolint:gosec // Issue numbers are always small positive integers
	}

	if err := client.Query(ctx, &query, variables); err != nil {
		return nil, err
	}

	// Look for a PR from copilot-swe-agent created after the assignment time
	for _, node := range query.Repository.Issue.TimelineItems.Nodes {
		if node.TypeName != "CrossReferencedEvent" {
			continue
		}
		pr := node.CrossReferencedEvent.Source.PullRequest
		if pr.Number > 0 && pr.Author.Login == "copilot-swe-agent" {
			// Only return PRs created after the assignment time
			if pr.CreatedAt.Time.After(createdAfter) {
				return &linkedPullRequest{
					Number:    pr.Number,
					URL:       pr.URL,
					Title:     pr.Title,
					State:     pr.State,
					CreatedAt: pr.CreatedAt.Time,
				}, nil
			}
		}
	}