Sign prepacked mac build only

[jakubzitny]

• Version: latest
• Target: mac, linux, win

I am separating the feature request from #1146 — creating a sign option, that can be used to sign prepacked mac bundle that was already built before, e.g. on a different Linux CI machine.

[jakubzitny]

Is there any simple way to implement this @develar? It could really help to simplify Mac builds from Linux that are signed on a Mac.

[develar]

It is only one line of code, because now you can build prepackaged app — we don't sign it yet, but should.

What do you build? DMG? Why not just build on Mac?

[jakubzitny]

Can we create a DMG from prepackaged .app already? We're on electron-builder 12.2, it might not have been there yet, or?

And yeah we have the whole CI pipeline on Linux machines as most of the build tools are more stable and easier to setup and maintain on Linux. We're just scping the Mac zip build to a Mac mini server, sign it there and then we want to continue building DMG where we left off on Linux. Right now we have extra appdmg dependency for this, but running it with electron-builder would be cool.

[develar]

Can we create a DMG from prepackaged .app already

Yes. I realized that it is already supported. Build prepacked app — https://github.com/electron-userland/electron-builder#pack-only-in-a-distributable-format

electron-builder 12.2, it might not have been there yet, or?

No, please use 15.x

[develar]

we want to continue building DMG where we left off on Linux

You cannot because DMG is supported only on mac. So, you just send .app to mac mini and pack it onto dmg (will be signed).

[jakubzitny]

Right, thanks. The --prepackaged flag for packing is what we'll use. 😄 🎉