bug#34565: ungoogled-chromium contains Widevine DRM

[Adonay Felipe Nogueira <adfeno@hyperbola.info>]

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Em 20/02/2019 13:18, Julien Lepiller escreveu:
> I think the situation is different though. You can see the build script
> inside the "origin" record as the liberation procedure that anyone can
> see and verify. It's also a procedure targeted at our build farms, so
> that they can produce the liberated source code. Users never manipulate
> non-free source code, unless something is wrong on the build farm side.

I'm not taking any sides here, but to give some more information, if for
example you do `guix edit ungoogled-chromium' you will be presented to
the package definition of Ungoogled-Chromium, taking that as an example
you can see that it has a "source (origin ...) ...)" definition, inside
the inner part (the "origin") you have:

* the upstream download location and method, see (method ...), (uri ...)
and (sha256 ...);
* patches that should be applied immediatelly after downloading and
extracting the source files, per (patches ...);
* snippets and modules to be used with these, also to be applied
immediatelly after downloading and extracting the source files, as seen
in (snippet ...) and (modules ...).

When `guix build -S ungoogled-chromium' is done, first it checks the
build farms for the "prepared" source that matches the given package
definition, version, hash and so on; and lastly it tries to "prepare"
the source according to (patches ...) and (snippet ...) declarations
before even telling the user that the download is ready/done.

Having the (origin ...) visible in this way brings the advantages that
the people of Guix told about here, but as far as I can tell, the user
also sees the original location of the non-free source from upstream if
they do `guix edit ungoogled-chromium'.


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