On Mon, Dec 17, 2018 at 01:03:38PM +0100, Ricardo Wurmus wrote:
>
> > This could be solved by a new field in the package-record: (provides
> > '("list of commands provided"))
>
> The danger with doing this in a package definition is that it can easily
> go out of sync unless we also add a verification phase to compare the
> output with the list of provided executables. Another problem is that
> the list might not be complete and it is yet another manual thing to
> maintain for all packages.
>
> Another approach is to shift this task to substitute servers.This is Debian's aproach, with 'apt-file'. Another option that would keep it more local would be a custom updatedb command that would look in bin/sbin/libexec in the store for binaries and keep track of that. The downside of course being that you'd only know about binaries you had in your store. > > > E.g. right now in my guixsd I have no "file" command. I have no idea > > which package installs it. :p > > The confusingly named “file” package provides the “file” executable ;) This works for file, but it's not obvious that 'clear' is in ncurses. -- Efraim Flashner <efr...@flashner.co.il> אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted
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