Support darwin-arm64

[andypiper]

Running gh upgrade --all reports:

[graph]: already up to date
[label]: gh-label unsupported for darwin-arm64. Open an issue: `gh issue create -R heaths/gh-label -t'Support darwin-arm64'`
[markdown-preview]: upgrade complete

... so, raiding this issue!

[heaths]

Thanks for the suggestion! I currently use https://github.com/cli/gh-extension-precompile to compile and publish the binaries, so you'll need to file a feature request there. The https://github.com/cli/cli will also likely need a change to check for and download darwin-arm64 releases as well.

/cc @vilmibm

[heaths]

There's a PR already available, but waiting for cli/cli changes: cli/gh-extension-precompile#3

[mislav]

The latest GitHub CLI 2.8.0 release fixes this by falling back to amd64 binary if Rosetta is installed. If an arm64 binary is found, for example as a product of the latest gh-extension-precompile action, however, then its codesigning is fixed after downloading to allow execution by the OS.

[heaths]

@mislav so if I understand you correctly, if we can't/won't sign our arm64 binaries we should not upgrade to the latest gh-extension-precompile action?

[mislav]

@heaths We can not expect that every extension author signs their arm64 binaries since that (to my knowledge) would require them to have a paid Apple Developer account. So, your binaries can remain unsigned; gh v2.8+ will self-sign any downloaded arm64 extension during installation. You can safely upgrade to the latest gh-extension-precompile.