EVS doesn't support macOS Universal builds?

Hi all,

Running into an issue when trying to use EVS signing utility on my Universal build of our darwin app –

> python3 -m castlabs_evs.vmp sign-pkg ./dist_electron/mac-universal
Signing: ./dist_electron/mac-universal/Lift.app
UnsupportedError: Binary type or archtecture not supported

Any way we can sign for Universal builds?

Debug details:

electronVersion: "13.1.6-wvvmp",

Python 3.9.1

node v14.15.3

Thanks!

[khwaaj]

I had some time to take a closer look at this and, as it turns out, implementing it in EVS was far easier than I had anticipated, so I went ahead and updated the service and client with support for universal binaries. If you want to try it out, you need to upgrade the client like this:

python3 -m pip install --upgrade castlabs-evs

Once you have the v1.1.0 client you will be able to sign universal binaries, as long as the included executables are based on EVS. Keep in mind that a universal binary with two architectures is twice the size, which means a signing request will take twice the time to upload the binary to the service (on slow connections passing -z may be beneficial).

On a separate note I noticed that @electron/universal, which is used under the hood by several packagers, is unable to merge ECS releases because of the pre-generated .sig files that exist in the app bundle. Since you have been experimenting with this you are probably aware already. Anyway, for the record, to fix this with electron-builder I simply added code to the afterPack hook that removes the offending .sig file from the package (it will be regenerated when you sign the package anyway):

const fs = require('fs')

exports.default = async function(context) {
  fs.unlinkSync(context.appOutDir + '/my.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Resources/Electron Framework.sig')
}

[alectrocute]

@khwaaj Following up to say I just successfully signed our Universal 13.1.6-wvvmp build with castlabs-evs. The -z flag wasn’t needed, the artifact uploaded with zero issues. Safe to say, we now have full macOS support!