Hi, The GPLv2 has this part: > If distribution of executable or object code is made by offering > access to copy from a designated place, then offering equivalent > access to copy the source code from the same place counts as > distribution of the source code, even though third parties are not > compelled to copy the source along with the object code.
So as I understand when redistributing packages (made with guix pack
for instance), 'guix build --sources=transitive
<packages [...]>' can be used to get all the corresponding source code
and publish it in 'the same place'. I could also distribute the Guix
source code being used and the build scripts along the way, and even
generate a package <-> license list with guix package --show just to be
sure (though the licenses are also in the source code).
But for redistributing complete images built with guix system image,
like a VM image for instance, I'm unsure how to do it and I was
wondering if there is a standard way to do that.
The following command seems to be able to tell me which packages were
used in the image:
> guix gc -R "$(guix system build system.scm)"
but then:
(1) I'm unsure if there are all the packages
(2) I need to parse the output and I'm unsure how to separate the
package name from the version in a reliable way.
Another option could be to export my-os and use something like that in
a scm file that I'd then use 'guix build -L . --sources=transitive' on
after importing (gnu system) and (guix packages):
> (filter package? (operating-system-packages my-os))
but then here too I'm even more afraid of missing packages. The
downside is also that it filters out packages like `(,git "gui") so
using that in the image would not be possible and would need to be
heavily documented.
Denis.
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