Method insertContent

packages/shell/src/fs/in-memory-fs.ts:620–641

(
    rawPath: string,
    content: FileContent,
    encoding?: BufferEncoding,
    mode?: number,
    mtime?: Date
  )

  // ── Mutation helpers ───────────────────────────────────────────────

  private insertContent(
    rawPath: string,
    content: FileContent,
    encoding?: BufferEncoding,
    mode?: number,
    mtime?: Date
  ): void {
    validatePath(rawPath, "write");
    const segs = split(normalizePath(rawPath));
    if (segs.length === 0) {
      throw new Error(
        `EISDIR: illegal operation on a directory, write '${rawPath}'`
      );
    }
    const parent = this.scaffold(segs);
    parent.children.set(segs[segs.length - 1], {
      kind: "file",
      bytes: toBuffer(content, encoding),
      mode: mode ?? DEFAULT_FILE_MODE,
      mtime: mtime ?? new Date()
    });
  }

  private insertLazy(
    rawPath: string,