usage-lib 3.5.2

pub const RUNTIME_TS: &str = r#"// Runtime module for usage-generated SDK clients. Do not edit manually.
import { spawn, ChildProcess } from "node:child_process";

export class CliResult {
  constructor(
    public readonly stdout: string,
    public readonly stderr: string,
    public readonly exitCode: number,
  ) {}

  get ok(): boolean {
    return this.exitCode === 0;
  }
}

export class CliError extends Error {
  constructor(
    public readonly binPath: string,
    message: string,
  ) {
    super(message);
    this.name = "CliError";
  }
}

export class CliRunner {
  constructor(private binPath: string) {}

  async run(args: string[]): Promise<CliResult> {
    return new Promise<CliResult>((resolve, reject) => {
      const child: ChildProcess = spawn(this.binPath, args, {
        stdio: ["pipe", "pipe", "pipe"],
      });
      let stdout = "";
      let stderr = "";
      child.stdout?.setEncoding("utf-8").on("data", (chunk: string) => { stdout += chunk; });
      child.stderr?.setEncoding("utf-8").on("data", (chunk: string) => { stderr += chunk; });
      child.on("error", (err: NodeJS.ErrnoException) => {
        if (err.code === "ENOENT") {
          reject(new CliError(this.binPath, `CLI binary not found: ${this.binPath}`));
        } else {
          reject(err);
        }
      });
      child.on("close", (code: number | null) => {
        resolve(new CliResult(stdout, stderr, code ?? 1));
      });
    });
  }
}
"#;