copying from private repo

files/zip2tar

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+#!/usr/bin/env python3
+
+"""zip2tar """
+
+import argparse
+
+import sys
+import os
+from zipfile import ZipFile
+import tarfile
+import time
+
+
+def get_opts():
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-q",
+        dest="quiet",
+        action="store_true",
+        default=False,
+        help="Quiet operation",
+    )
+    parser.add_argument(
+        "-f",
+        dest="force",
+        action="store_true",
+        default=False,
+        help="Overwrite target",
+    )
+    parser.add_argument(
+        "zip",
+        action="store",
+        help="Zip to convert",
+    )
+    parser.add_argument(
+        "tar",
+        action="store",
+        help="Output filename, defaults to [zip].tgz. Recognizes extensios: .tar, .tgz, .gz, .bz2",
+        default=None,
+        nargs="?",
+    )
+
+    parsed = parser.parse_args()
+    if parsed.tar == None:
+        parsed.tar = os.path.splitext(parsed.zip)[0] + ".tgz"
+    return parsed
+
+
+def main():
+    opts = get_opts()
+
+    if not opts.force and os.path.exists(opts.tar):
+        raise FileExistsError(opts.tar)
+
+    mode = "w"
+    if opts.tar.endswith(".tgz") or opts.tar.endswith(".gz"):
+        mode = "w:gz"
+    if opts.tar.endswith(".bz2"):
+        mode = "w:bz2"
+
+    with ZipFile(opts.zip) as zipf:
+        with tarfile.open(opts.tar, mode) as tarf:
+            for zip_info in zipf.infolist():
+                if not opts.quiet:
+                    print(zip_info.filename, zip_info.file_size)
+
+                tar_info = tarfile.TarInfo(name=zip_info.filename)
+                tar_info.size = zip_info.file_size
+                tar_info.mtime = time.mktime(zip_info.date_time + (-1, -1, -1))
+                if zip_info.is_dir():
+                    tar_info.type = tarfile.DIRTYPE
+                    tarf.addfile(tarinfo=tar_info)
+                else:
+                    tarf.addfile(tarinfo=tar_info, fileobj=zipf.open(zip_info.filename))
+
+
+if __name__ == "__main__":
+
+    main()