CesiumGS/cesium

Update zip.js dependency to latest

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#8,092 创建于 2019年8月20日

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 (3 评论) (0 反应) (0 负责人)JavaScript (11,758 star) (3,324 fork)batch import
good first issuetype - enhancement

描述

Per the zip.js devs, Cesium is using an older build and it results in instantiating a new web worker for every file added to a ZIP (!!!), greatly slowing the process. This only showed up recently because the KML exporter is probably the first part of Cesium that needs to make ZIP files.

贡献者指南

技术栈
javascript
领域
performance
议题类型
performance
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
2
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Familiarity with npm or yarnUnderstanding of dependency updatesBasic knowledge of Cesium's build process
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
85
研究方向
Investigate the current zip.js version used in Cesium by searching package.json or equivalent files. Refer to zip.js issue #139 (https://github.com/gildas lormeau/zip.js/issues/139) for the recommended version that fixes the excessive worker instantiation. Update the dependency version in the appropriate configuration file and verify that the KML exporter works correctly without performance degradation.