Function needProjectId

src/projectUtils.ts:30–75

({
  projectId,
  project,
  rc,
}: {
  projectId?: string;
  project?: string;
  rc?: RC;
})

 * @returns The projectId
 */
export function needProjectId({
  projectId,
  project,
  rc,
}: {
  projectId?: string;
  project?: string;
  rc?: RC;
}): string {
  if (projectId || project) {
    return projectId || project!;
  }

  const aliases = rc?.projects || {};
  const aliasCount = Object.keys(aliases).length;

  if (aliasCount === 0) {
    throw new FirebaseError(
      "No currently active project.\n" +
        "To run this command, you need to specify a project. You have two options:\n" +
        "- Run this command with " +
        clc.bold("--project <alias_or_project_id>") +
        ".\n" +
        "- Set an active project by running " +
        clc.bold("firebase use --add") +
        ", then rerun this command.\n" +
        "To list all the Firebase projects to which you have access, run " +
        clc.bold("firebase projects:list") +
        ".\n" +
        marked(
          "To learn about active projects for the CLI, visit https://firebase.google.com/docs/cli#project_aliases",
        ),
    );
  }

  const aliasList = Object.entries(aliases)
    .map(([aname, projectId]) => `  ${aname} (${projectId})`)
    .join("\n");

  throw new FirebaseError(
    "No project active, but project aliases are available.\n\nRun " +
      clc.bold("firebase use <alias>") +
      " with one of these options:\n\n" +
      aliasList,
  );
}

/**
 * Fetches the project number, throwing an error if unable to resolve the