Encode plist files in XML instead of binary to mitigate App Store build crashes

[runofthemillgeek]

I'm using electron-builder to build distributables for my Electron app. Currently, app-builder is producing Info.plist files in binary format. This seems to be causing mas and mas-dev builds to crash at runtime. I'm not sure if there's any official documentation that states MAS builds should have XML formatted plists, but it is mentioned as necessary for entitlement plist files for notarization (see here).

I've detailed the steps I've taken to get working mas/mas-dev builds here: electron/osx-sign#223 (comment).

Changing the following:

app-builder/pkg/plist/plist.go

Line 47 in 0c35a47

err := plist.NewEncoderForFormat(&out, plist.BinaryFormat).Encode(data)

to have plist.XMLFormat passed instead should do the trick, I hope.

[wgcv]

Please this change is very importan there are a lot of issues about this @develar

[runofthemillgeek]

This should be fixed now. Thanks @wgcv!