feat(tvix/store/nar): add read_nar method r/6951

This adds a function that can ingest a NAR file into a given
blob_service and directory_service, returning the root node.

Passing around the directory_putter is a bit annoying, but at least for
this linear "reading through a NAR" case, we don't need it to be clone
or sync.

Change-Id: Ia26d596f5dffc6dbd69aa39a82b59bba41685a9c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9915
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI

0 files changed, 0 insertions, 0 deletions