Function resolveBranchRef

internal/skills/discovery/discovery.go:310–324

resolveBranchRef looks up a branch by short name and returns a fully qualified ref.

(client *api.Client, host, owner, repo, branch string)

// resolveBranchRef looks up a branch by short name and returns a fully qualified ref.
func resolveBranchRef(client *api.Client, host, owner, repo, branch string) (*ResolvedRef, error) {
	refPath, err := safeurl.JoinPath("repos", owner, repo, "git", "ref", fmt.Sprintf("heads/%s", branch))
	if err != nil {
		return nil, err
	}
	var refResp struct {
		Object struct {
			SHA string `json:"sha"`
		} `json:"object"`
	}
	if err := client.REST(host, "GET", refPath.String(), nil, &refResp); err != nil {
		return nil, fmt.Errorf("branch %q not found in %s/%s: %w", branch, owner, repo, err)
	}
	return &ResolvedRef{Ref: "refs/heads/" + branch, SHA: refResp.Object.SHA}, nil
}

// isNotFound returns true if the error is an HTTP 404 response.
func isNotFound(err error) bool {