aws/aws-cdk

core: configurable ZIP compression level

Open

#22,427 建立於 2022年10月8日

在 GitHub 查看
 (3 留言) (1 反應) (0 負責人)TypeScript (10,710 star) (3,530 fork)batch import
@aws-cdk/coreeffort/smallfeature-requestgood first issuep2

描述

Describe the feature

I noticed that the ZIP files produced by CDK are quite a bit larger than those produced, for example, by the "Compress" functionality in macOS Finder for the same content.

The feature request is that the compression level of zlib used in the ZIP compression is made configurable by the user (a speed vs compression ratio trade-off). This could be beneficial, for example, to produce as small packages as possible for Lambda functions.

Use Case

ZIP files produced as CDK assets (e.g., bundled JS Lambda code/sourcemaps) are larger than they could be.

Proposed Solution

Expose the level setting of zlib, which is exposed by the archiver library which seems to be used by CDK for ZIP packages (see https://www.npmjs.com/package/archiver)

Other Information

No response

Acknowledgements

  • I may be able to implement this feature request
  • This feature might incur a breaking change

CDK version used

2.43.1

Environment details (OS name and version, etc.)

macOS 12.5.1

貢獻者指南

技術棧
typescriptnodejs
領域
infrastructurecloudbuild system
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
2
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
basic Node.jsfamiliarity with aws cdk core
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
60
研究方向
Investigate the aws cdk source code to find where ZIP files are created using the 'archiver' library. Look for the compression level setting in zlib (0-9) and how to expose it as a configuration parameter. The issue suggests modifying the archiver options to accept a 'level' property. Start by searching for 'archiver' usage in the codebase, likely in the 'core' module.