Function resolveBranchRef

internal/skills/discovery/discovery.go:297–308

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 := fmt.Sprintf("repos/%s/%s/git/ref/heads/%s", url.PathEscape(owner), url.PathEscape(repo), url.PathEscape(branch))
	var refResp struct {
		Object struct {
			SHA string `json:"sha"`
		} `json:"object"`
	}
	if err := client.REST(host, "GET", refPath, 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 {