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@@ -152,6 +152,14 @@ destination container.
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The copy obeys the following rules:
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The copy obeys the following rules:
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+* If ``<src>`` is a URL and ``<dest>`` does not end with a trailing slash,
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+ then a file is downloaded from the URL and copied to ``<dest>``.
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+* If ``<src>`` is a URL and ``<dest>`` does end with a trailing slash,
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+ then the filename is inferred from the URL and the file is downloaded to
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+ ``<dest>/<filename>``. For instance, ``ADD http://example.com/foobar /``
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+ would create the file ``/foobar``. The URL must have a nontrivial path
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+ so that an appropriate filename can be discovered in this case
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+ (``http://example.com`` will not work).
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* If ``<src>`` is a directory, the entire directory is copied,
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* If ``<src>`` is a directory, the entire directory is copied,
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including filesystem metadata.
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including filesystem metadata.
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* If ``<src>``` is a tar archive in a recognized compression format
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* If ``<src>``` is a tar archive in a recognized compression format
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