Add check for Apple Silicon Macs

[Figments]

💡 Feature description

Include support for Apple Silicon Macs, e.g. the late 2020 MacBook Air, late 2020 MacBook Pro 13", and late 2020 Mac mini.

💻 Basic example

Currently, trying to install the wasm-pack library from either NPM or Yarn results in the following error:

Error: Unsupported platform: Darwin arm64

Installing wasm-pack via cargo (using the latest Darwin arm64 support included in Rust 1.49) works flawlessly. It's only the NPM and Yarn version that produces this error.

[anp]

I'm also getting set up on an M1 machine, although I build my wasm-pack from source so didn't run into this. Based on the NPM installer I think the project will also need to upload aarch64-apple-darwin binaries to GitHub Releases.

[anp]

Also FYI once you get it installed there are still some limitations, through no fault of wasm-pack's maintainers AIUI.

[richiksc]

You mention wasm-pack working flawlessly on M1 if installed via cargo or compiled from source. I run into the issue described at #907 when running wasm-pack compiled from source on an M1-based Mac.

[iugo]

➜  curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
wasm-pack-init: no precompiled binaries available for CPU architecture: arm64

[tholu]

@iugo Ran into the same issue, tried cargo install wasm-pack instead and it works so far.

[Xayaan]

Curl command doesn't work on M1, as @tholu stated above. Running cargo install wasm-pack works perfectly.

[huntc]

Having followed the cargo install route, I note that the resultant wasm-pack is built for x86:

huntc@MBP14inch2021 ~ % file `which wasm-pack`
/Users/huntc/.cargo/bin/wasm-pack: Mach-O 64-bit executable x86_64

[fishcharlie]

Is there any plans to fix the curl installer and make the bundle universal or Apple Silicon compatible?