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I’ve created an app that is reskinnable by just changing asset files. In theory, I could just unzip the IPA file, update my assets, then rezip it as a new version. Of course this doesn’t work because of code signing and CodeResources hashes will not match my new assets. Is there anyway I can update CodeResources hashes without having to recompile my app?
Yes. Use the
codesignutility.codesignwill let you replace any existing signature with one for the identity you specify. (Here’s a good blog post on the subject.)You can see exactly what parameters Xcode is passing to
codesignby looking in your build logs. Find the line beginning with “CodeSign AppName…”, select it, and then click on the little button that appears to the right. It’ll show you the rawcodesigncommand Xcode executed to sign your app. You should be able to unzip the .ipa, replace your assets, zip, and run the command from Xcode to re-sign the app.