bug#33897: 'guix publish' is unable to serve narinfos for dead items

[Ludovic Courtès]

Ludovic Courtès <address@hidden> skribis:

> ‘render-narinfo/cached’ in ‘guix publish’ uses ‘hash-part->path’ to go
> from /xyz.narinfo to, say, /gnu/store/xyz-guile-2.2.4.
>
> The problem is that ‘hash-part->path’ is an RPC that works only if xyz
> corresponds to a live item; in other cases, it returns the empty
> string.  Consequently, if /gnu/store/xyz-guile-2.2.4 has been GC’d,
> ‘guix publish’ returns 404 for /xyz.narinfo, even if it actually has the
> narinfo somewhere in cache.
>
> This defeats the intended behavior of ‘--cache’ and ‘--ttl’.

Fixed in 493375cdb23fc1416348da584f17bec7171faadd.

Ludo’.