Function gatherTelemetryFromCdp

src/targets/node/nodeLauncherBase.ts:532–573

* Reads telemetry from the process.

(
    cdp: Cdp.Api,
    run: IRunData<T>,
  )

   * Reads telemetry from the process.
   */
  protected async gatherTelemetryFromCdp(
    cdp: Cdp.Api,
    run: IRunData<T>,
  ): Promise<IProcessTelemetry | undefined> {
    for (let retries = 0; retries < 8; retries++) {
      const telemetry = await cdp.Runtime.evaluate({
        contextId: 1,
        returnByValue: true,
        // note: for some bizarre reason, if launched with --inspect-brk, the
        // process.pid in extension host debugging is initially undefined.
        expression:
          `typeof process === 'undefined' || process.pid === undefined ? 'process not defined' : ({ processId: process.pid, nodeVersion: process.version, architecture: process.arch })`
          + getSourceSuffix(),
      });

      if (!this.program) {
        return; // shut down
      }

      if (!telemetry || !telemetry.result || !telemetry.result.value) {
        this.logger.error(LogTag.RuntimeTarget, 'Undefined result getting telemetry');
        return;
      }

      if (typeof telemetry.result.value !== 'object') {
        this.logger.info(LogTag.RuntimeTarget, 'Process not yet defined, will retry');
        await delay(50 * 2 ** retries);
        continue;
      }

      const result = telemetry.result.value as IProcessTelemetry;
      run.context.telemetryReporter.report('nodeRuntime', {
        version: result.nodeVersion,
        arch: result.architecture,
      });
      this.program.gotTelemetery(result);

      return result;
    }

    return undefined;
  }
}

function readEnvFile(file: string): { [key: string]: string } {