Replace third party libraries with npm modules

[ebogo1]

This issue will serve as a task list for replacing third party modules with npm modules. Here is the task list (incomplete for now; I'll be updating this as we go).

• [x] Create staging branch for npm changes - https://github.com/CesiumGS/cesium/tree/npm-third-party-staging
• [x] Merge first pass PR into staging (https://github.com/CesiumGS/cesium/pull/9466/)
• [x] Move to npm; or other - see https://github.com/CesiumGS/engineering/issues/69#issue-834201104)
  • [x] sprintf (https://github.com/CesiumGS/cesium/pull/9476)
  • [x] bitmap-sdf.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [ ] ~google-earth-dbroot-parser.js~ leaving in ThirdParty, at least for now
  • [x] graphmesplitter.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [x] jsep.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [ ] ~knockout-3.5.1.js, knockout-es5.js, knockout.js~ (need longer term plan to get rid of knockout)
  • [x] LercDecode.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [x] measureText.js (https://github.com/CesiumGS/cesium/pull/9765)
  • [x] mersenne-twister.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [x] NoSleep.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [x] pako_inflate.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [x] protobuf-minimal.js (https://github.com/CesiumGS/cesium/pull/9747)
  • [x] purify.js (https://github.com/CesiumGS/cesium/pull/9688)
  • [x] Uri.js (https://github.com/CesiumGS/cesium/pull/9740)
  • [x] zip.js (https://github.com/CesiumGS/cesium/pull/9696)
• [ ] Other files in Source/ThirdParty:
  • [x] GltfPipeline (https://github.com/CesiumGS/cesium/pull/9699)
    • [x] Follow-up to update instructions in https://github.com/CesiumGS/gltf-pipeline README.md
  • [ ] Basis: Workers/basis_transcoder.js & basis_transcoder.wasm
  • [x] Draco: Workers/draco_decoder.js, Workers/draco_wasm_wrapper.js, & draco_decoder.wasm (https://github.com/CesiumGS/cesium/pull/9778)
  • [x] FXAA3_11 in Source/ThirdParty/ Shaders/ (https://github.com/CesiumGS/cesium/pull/9704)
  • [x] Source/ThirdParty/Workers/inflate + deflate.js (https://github.com/CesiumGS/cesium/pull/9696)
• [x] compare built CesiumJS sizes: .zip went from 63.6 MB to 64.0 MB, .tgz went from 21.4 MB to 21.9 MB as of 038f732 in npm-third-party-staging
• [x] rename ThirdPartyNpm to ThirdParty (https://github.com/CesiumGS/cesium/pull/9705)
• [x] test branch in cesium-analytics (needed a one-line change to update a when import), gltf-pipeline, swayze, and obj2gltf
• [x] update CHANGES.md (IE11 dropped, started moving third parties to npm)

[mramato]

cesiumWorkerBootstrapper.js also has an entire copy of RequireJS in it because we needed to be able to load modules in a worked. We'll have to investigate if there is an alternative solution or (worst case) generate this file as part of the build step.

[lilleyse]

@ebogo1 https://www.npmjs.com/package/ktx-parse should be added after https://github.com/CesiumGS/cesium/pull/9513 is merged

[lilleyse]

Just checking, does this task list account for third party libraries in cesium/ThirdParty and cesium/Sandcastle/ThirdParty?

[ebogo1]

By Cesium/ThirdParty/ do you mean codemirror-5.52.0, dojo-release-1.10.4, jasmine-2.20, and jslint-2.11.0? As for the ones in Sandcastle, I'm not sure what the plan is for those; I had a comment about it in the original post of #9688.

[lilleyse]

One more late breaking third party library to account for - meshopt. Added in https://github.com/CesiumGS/cesium/pull/9694.

Source/ThirdParty/meshopt_decode.js

Here's the npm library that we should try using instead: https://www.npmjs.com/package/meshoptimizer

Edit: see if adding meshopt from npm fixes https://github.com/CesiumGS/cesium/issues/9751

[ggetz]

Closing, as the original scope of this issue has been covered. Knockout.js, workers, and Sandcastle dependencies will be a separate effort.