Print differences between two zip/jar files.

zipdiff.py

import zipfile
import yaml
import sys

def zipdiff(z1, z2):
    """A function that compares the files of two zip files and returns a list of files that are result."""
    files1 = z1.namelist()
    files2 = z2.namelist()
    result = []
    for file in files1:
        if file in files2:
            if z1.read(file) != z2.read(file):
                result.append((file, "different"))
                continue
            result.append((file, "same"))
        else:
            result.append((file, "file not in z2"))
    for file in files2:
        if file not in files1:
            result.append((file, "file not in z1"))
    return list(sorted(result))


def main(f1, f2):
    """A test function that compares two zip files."""
    z1 = zipfile.ZipFile(f1, "r")
    z2 = zipfile.ZipFile(f2, "r")
    result = zipdiff(z1, z2)
    print(yaml.safe_dump(result, indent=2, default_flow_style=False))
    return result


def test_main():
    result = main(f1, f2)
    raise NotImplementedError


if __name__ == "__main__":
    try:
        progname, f1, f2 = sys.argv[0:3]
    except IndexError:
        print("Compare two zip/jar files: %s file1 file2" % (sys.argv[0],))

    main(f1, f2)