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Disable wasmbind feature by default #1472

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merged 1 commit into from
Feb 29, 2024

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erickt
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@erickt erickt commented Feb 29, 2024

This removes wasmbind from the default feature set, which stops chrono from implicitly depending upon wasm-bindgen and js-sys. This is helpful for a few reasons:

  • It reduces the default dependency set by default for non-wasm projects, which shrinks the download size.

  • Projects like Fuchsia have a policy where 3rd party crates need to be audited. While we don't use wasm-bindgen, we can't opt out of it by setting default-features = false because of feature unification ends up enabling chrono's default feature. See this cargo issue for more details. wasm-bindgen is large and complicated, so it's pretty expensive for us to update.

While I'd love to land this in the main branch, it's technically a breaking issue since downstream dependencies are probably not enabling the wasmbind feature if they need it.

Fixes #1164

This removes `wasmbind` from the default feature set, which stops chrono
from implicitly depending upon wasm-bindgen and js-sys. This is helpful
for a few reasons:

* It reduces the default dependency set by default for non-wasm
  projects, which shrinks the download size.

* Projects like Fuchsia have a policy where 3rd party crates need to be
  audited. While we don't use wasm-bindgen, we can't opt out of it by
  setting `default-features = false` because of [feature unification]
  ends up enabling chrono's default feature. See this [cargo issue]
  for more details. `wasm-bindgen` is large and complicated, so it's
  pretty expensive for us to update.

Fixes chronotope#1164

[feature unification]: https://doc.rust-lang.org/cargo/reference/features.html#feature-unification
[cargo issue]: rust-lang/cargo#4463
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codecov bot commented Feb 29, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.34%. Comparing base (999582e) to head (cc4c622).

Additional details and impacted files
@@           Coverage Diff           @@
##            0.5.x    #1472   +/-   ##
=======================================
  Coverage   94.34%   94.34%           
=======================================
  Files          37       37           
  Lines       17009    17009           
=======================================
  Hits        16047    16047           
  Misses        962      962           

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@djc djc merged commit a7cfa8c into chronotope:0.5.x Feb 29, 2024
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@djc
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djc commented Feb 29, 2024

Thanks!

@erickt erickt deleted the remove-wasmbind-by-default branch March 4, 2024 17:57
@amitu
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amitu commented Mar 10, 2024

I would like to know the plan for releasing 0.5. I need this feature, and if its expected to land shortly I can wait, but if its going to take long I would consider removing chrono and try to compile my project somehow else.

@pitdicker
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If you are in a position to remove chrono, you probably are also in the position to use it without default features?

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4 participants