How to compare two tarball's content

Question

I want to tell whether two tarball files contain identical files, in terms of file name and file content, not including meta-data like date, user, group.

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Answer 1

tarsum is almost what you need. Take its output, run it through sort to get the ordering identical on each, and then compare the two with diff. That should get you a basic implementation going, and it would be easily enough to pull those steps into the main program by modifying the Python code to do the whole job.