Re: Design decision behind inputs/native-inputs/propagated-inputs

[Ludovic Courtès]

Steven Allen <address@hidden> skribis:

> Can anyone tell me what's going on here or point me to the relevant
> documentation? Specifically, why does the daemon (assuming guix-daemon)
> need to see what store items the package refers to?

At the end of a build, guix-daemon scans all the produced file in search
of references to other store items.  It then records those run-time
references (so a subset of the build-time dependencies) in the
/var/guix/db/db.sqlite database, which can be queried with
‘guix gc --references’.

Scanning is also made from ‘registerOutputs’ in build.cc.

For background, see Eelco Dolstra’s thesis at
<http://nixos.org/~eelco/pubs/phd-thesis.pdf>.

HTH!

Ludo’.