Method handleData

src/python/stderr.ts:16–33

(data: Buffer | string)

  constructor(private readonly prefix = '') {}

  handleData(data: Buffer | string): void {
    const text = typeof data === 'string' ? data : this.decoder.write(data);
    this.buffer += text;

    const carry = this.buffer.endsWith('\r') ? '\r' : '';
    const normalized = (carry ? this.buffer.slice(0, -1) : this.buffer).replace(/\r\n?/g, '\n');
    const lines = normalized.split('\n');
    this.buffer = (lines.pop() ?? '') + carry;

    for (const line of lines) {
      this.logLine(line);
    }

    if (this.buffer.length >= MAX_STDERR_BUFFER_LENGTH) {
      this.logLine(this.buffer);
      this.buffer = '';
    }
  }

  flush(): void {
    const remaining = this.buffer + this.decoder.end();