This changes the effective license from a simple Apache-2.0 license to a
dual license consisting of both Apache-2.0 and the MIT license to be more
compatible for use in GPL Code.
The MIT license requires reproducing countless copies of the same copyright
header with diffferent names in the copyright field, for every MIT library
in use. The Apache license does not have this drawback. However, this is not
the primary motivation for creating these issues. The Apache license also has
protections from patent trolls and explicit contribuition licensing clause.
However the Apache license is incompatible with GPLv2. This is why Rust is
dual-licensed as MIT/Apache (the "primary" license being Apache, MIT only for
GPLv2 compat), and doing so would be wise for this project. This also makes
this crate suitable for inclusion and unrestricted sharing in the Rust
standard distribution and other projects using dual MIT/Apache.
If the Docker Registry API allows for images to be deleted, issuing the
command `delete <image> <tag>` will result in the tag being removed from
the server.
A limitation of this change is that it will cause any unreferenced tags
to become orphaned, requiring the garbage collector within the docker
registry server to clean these up. This is because there is no way to
efficiently determine if each of the layers are reused by other tags or
images on the server.
Implement delete logic
Fix broken unit tests
Anthony Oteri