Package: diffoscope Version: 83 APKs are basically a ZIP file with a JAR signature, but not necessarily the CAFEBABE byte sequence that marks a JAR. This means that comparing APKs with diffoscope often results in a straight binary diff, which is useless.
Here's one example: https://verification.f-droid.org/im.zom.messenger_1510005.binary.apk.diffoscope.html im.zom.messenger_1510005.binary.apk is available here: https://verification.f-droid.org/Zom-15.1.0-alpha-5-zomrelease-release-unsigned.apk im.zom.messenger_1510005.apk is available here: https://github.com/zom/Zom-Android/releases/download/15.1.0-alpha-5/Zom-15.1.0-alpha-5-zomrelease-release.apk You can get lots and lots of APKs from here: https://f-droid.org/packages I'd like a way to force the file type in diffoscope. We are calling it from a build process, so we already know all files are going to be APKs. Also, I tried to get this added to libfile, but upstream is not willing to accept detection routines that rely on more complicated things like presence of a file in a ZIP. They just want byte patterns, which is not enough to consistently detect APKs.
